{"id":14758,"date":"2025-03-25T22:17:35","date_gmt":"2025-03-25T14:17:35","guid":{"rendered":"https:\/\/viox.com\/?p=14758"},"modified":"2026-01-19T14:23:21","modified_gmt":"2026-01-19T06:23:21","slug":"a-complete-guide-to-modular-contactor","status":"publish","type":"post","link":"https:\/\/test.viox.com\/my\/a-complete-guide-to-modular-contactor\/","title":{"rendered":"Modular Contactor \u1021\u1010\u103d\u1000\u103a \u101c\u1019\u103a\u1038\u100a\u103d\u103e\u1014\u103a\u1001\u103b\u1000\u103a\u1021\u1015\u103c\u100a\u1037\u103a\u1021\u1005\u102f\u1036"},"content":{"rendered":"
\n

Modular contactors are electromagnetic switches that safely control high-power circuits by using a low-voltage signal to activate or deactivate main contacts. Unlike traditional contactors, modular designs fit standardized DIN rails (17.5mm width), enabling space-efficient integration into modern electrical panels. This comprehensive guide covers selection criteria, real-world wiring scenarios, and the critical AC-7a\/AC-7b differences that competitors overlook\u2014knowledge that could prevent catastrophic equipment failure and 70% contact lifespan reduction.<\/p>\n

\"3-pole
Figure 1: VIOX 3-pole 25A modular contactor mounted on a standard 35mm DIN rail, illustrating the compact design for industrial control panels.<\/figcaption><\/figure>\n
\n

What Are Modular Contactors? Definition & Working Principle<\/h2>\n

\u1021\u1013\u102d\u1015\u1039\u1015\u102b\u101a\u103a<\/h3>\n

Modular contactors are electromagnetic actuators designed to establish or interrupt electrical connections between a power supply and a load. The term \u201cmodular\u201d refers to their standardized design that mounts on 35mm DIN rails with individual module widths of 17.5mm\u2014enabling efficient space utilization in modern control panels. Unlike industrial-grade contactors (which measure 4-8 inches), modular designs prioritize compactness without sacrificing current-handling capability.<\/p>\n

Key distinction:<\/strong> Modular contactors control electrical loads (lighting, motors, heating), while their control circuits typically operate at low voltage (24V DC, 120V AC). This separation provides both safety and flexibility.<\/p>\n

How They Work: The Electromagnetic Principle<\/h3>\n

When control voltage is applied to the coil, it generates a magnetic field that attracts an armature, mechanically closing the main contacts. This allows current to flow through the power circuit. When control voltage is removed, springs push the contacts apart, interrupting current flow.<\/p>\n

\"Modular
Figure 2: Internal technical structure of a modular contactor, highlighting the electromagnetic coil assembly, armature mechanism, and arc suppression chamber.<\/figcaption><\/figure>\n

Three critical components:<\/strong><\/p>\n\n\n\n\n\n\n\n
\u1021\u1005\u102d\u1010\u103a\u1021\u1015\u102d\u102f\u1004\u103a\u1038<\/th>\n\u101c\u102f\u1015\u103a\u1006\u1031\u102c\u1004\u103a\u1001\u103b\u1000\u103a<\/th>\n\u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u1019\u103e\u1010\u103a\u1005\u102f<\/th>\n<\/tr>\n<\/thead>\n
\u1000\u103d\u102d\u102f\u1004\u103a<\/strong><\/td>\nCreates electromagnetic field<\/td>\nTypical ratings: 24V DC, 230V AC. Failure = no switching capability<\/td>\n<\/tr>\n
Armature<\/strong><\/td>\nMechanical linkage operated by magnetic field<\/td>\nMust move freely; dust\/debris causes \u201cchatter\u201d<\/td>\n<\/tr>\n
Main Contacts<\/strong><\/td>\nSilver alloy conducting elements<\/td>\nSubject to arcing; wear increases resistance over time<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
\n

The Hidden Truth: AC-7a vs AC-7b Utilization Categories<\/h2>\n

Why This Matters (And Why Competitors Hide It)<\/h3>\n

One of the most dangerous misconceptions in electrical installation is the belief that a 25A contactor is \u201cgood for anything 25A or below.\u201d This is dangerously false.<\/strong><\/p>\n

Modular contactors are rated according to IEC 60947-4-1 \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1019\u103e\u102f \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u1019\u103b\u102c\u1038<\/strong>, which define the severity of the load being switched:<\/p>\n

    \n
  • AC-7a:<\/strong> Purely resistive loads (heaters, resistive ovens, incandescent lighting)<\/li>\n
  • AC-7b:<\/strong> Inductive loads with moderate switching frequency (three-phase motors, electromagnets)<\/li>\n<\/ul>\n
    \"AC-7a
    Figure 4: Engineering Analysis: The critical difference between AC-7a (resistive) and AC-7b (inductive) load profiles and the risk of contact welding.<\/figcaption><\/figure>\n

    The AC-7a Trap: Why 25A Contactors Fail with Motors<\/h3>\n

    Consider this scenario:<\/p>\n

    An engineer installs a cheap 25A modular contactor (AC-7a rated) to control a 3 kW three-phase motor.<\/strong><\/p>\n

    At startup, the motor\u2019s locked rotor current (LRC) reaches 6-8\u00d7 the running current<\/strong> \u2014 approximately 150A for just 100-200 milliseconds.<\/p>\n

    What happens to that 25A contactor?<\/strong><\/p>\n

      \n
    1. Massive arcing<\/strong> occurs as contacts attempt to close under extreme current<\/li>\n
    2. Contact material vaporizes<\/strong>, creating pits and craters on the contact surface<\/li>\n
    3. Effective contact area shrinks<\/strong>, increasing electrical resistance<\/li>\n
    4. Heat generation increases exponentially<\/strong>, weakening contact springs<\/li>\n
    5. Contact points weld together or fail to open reliably<\/strong>, trapping the motor in the ON state<\/li>\n<\/ol>\n

      Result:<\/strong> Lifespan reduced from 1,000,000+ cycles (AC-7a) to 300,000 cycles (70% reduction).<\/p>\n

      AC-7a vs AC-7b Comparison Table<\/h3>\n\n\n\n\n\n\n\n\n\n
      \u101d\u1014\u103a\u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038<\/th>\nAC-7a Rating<\/th>\nAC-7b Rating<\/th>\nMinimum Contactor<\/th>\nRisk of AC-7a Misuse<\/th>\n<\/tr>\n<\/thead>\n
      Resistive Heater (10kW)<\/strong><\/td>\n\u2713 Suitable 25A<\/td>\n\u2014<\/td>\n25A AC-7a<\/td>\nNone \u2014 excellent performance<\/td>\n<\/tr>\n
      Single-Phase Motor (3kW)<\/strong><\/td>\n\u2717 NEVER<\/td>\n\u2713 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a<\/td>\n40A AC-7b minimum<\/td>\nContact welding within 50 cycles<\/td>\n<\/tr>\n
      Three-Phase Motor (3kW)<\/strong><\/td>\n\u2717 NEVER<\/td>\n\u2713 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a<\/td>\n63A AC-7b minimum<\/td>\nCatastrophic failure within weeks<\/td>\n<\/tr>\n
      LED Driver Load (2kW)<\/strong><\/td>\n\u1021\u1014\u100a\u103a\u1038\u1004\u101a\u103a\u101e\u102c<\/td>\n\u2713 Better<\/td>\n32A \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u1014\u103e\u1004\u1037\u103a\u1021\u1010\u1030<\/td>\n\u101c\u103b\u1004\u103a\u1019\u103c\u1014\u103a\u1005\u103d\u102c \u1011\u102d\u1010\u103d\u1031\u1037\u1019\u103e\u102f \u101a\u102d\u102f\u101a\u103d\u1004\u103a\u1038\u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1001\u103c\u1004\u103a\u1038<\/td>\n<\/tr>\n
      EV \u1021\u102c\u1038\u101e\u103d\u1004\u103a\u1038\u1000\u102d\u101b\u102d\u101a\u102c \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1001\u103c\u1004\u103a\u1038<\/strong><\/td>\n\u2717 \u1010\u102c\u1038\u1019\u103c\u1005\u103a\u101e\u100a\u103a<\/td>\n\u2713 \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a<\/td>\n50A AC-7b<\/td>\n\u1018\u1031\u1038\u1000\u1004\u103a\u1038\u101b\u1031\u1038 \u1005\u100a\u103a\u1038\u1019\u103b\u1009\u103a\u1038 \u1016\u1031\u102c\u1000\u103a\u1016\u103b\u1000\u103a\u1001\u103c\u1004\u103a\u1038 (NEC)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      \u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c \u1005\u100a\u103a\u1038\u1019\u103b\u1009\u103a\u1038<\/h3>\n

      \u1019\u1031\u102c\u103a\u1010\u102c\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a\u104a \u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038 \u1019\u1031\u102c\u103a\u1010\u102c\u104f full-load current \u104f 125% \u101b\u103e\u102d\u101e\u1031\u102c contactor \u1000\u102d\u102f \u1021\u1019\u103c\u1032\u101b\u103d\u1031\u1038\u1001\u103b\u101a\u103a\u1015\u103c\u102e\u1038 AC-7b \u1021\u1016\u103c\u1005\u103a \u1021\u1011\u1030\u1038\u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u1015\u102b\u104b.<\/strong> 15A \u101c\u100a\u103a\u1015\u1010\u103a\u1014\u1031\u101e\u1031\u102c current \u101b\u103e\u102d\u101e\u1031\u102c 3 kW \u1019\u1031\u102c\u103a\u1010\u102c\u1021\u1010\u103d\u1000\u103a\u104a \u1021\u1014\u100a\u103a\u1038\u1006\u102f\u1036\u1038 contactor: 19A \u00d7 1.25 = 24A \u2192 32A AC-7b \u101e\u102d\u102f\u1037 \u1015\u1004\u1037\u103a\u1010\u1004\u103a\u1015\u102b\u104b.<\/strong><\/p>\n

      \n

      \u101c\u1000\u103a\u1010\u103d\u1031\u1037\u1000\u1019\u1039\u1018\u102c \u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038 \u1006\u1000\u103a\u101e\u103d\u101a\u103a\u1019\u103e\u102f \u1021\u1001\u103c\u1031\u1021\u1014\u1031\u1019\u103b\u102c\u1038- \u1021\u1004\u103a\u1002\u103b\u1004\u103a\u1014\u102e\u101a\u102c\u104f \u1000\u102d\u101b\u102d\u101a\u102c\u1021\u1005\u102f\u1036<\/h2>\n

      \u1021\u1001\u103c\u1031\u1021\u1014\u1031 A: Smart Home \u101b\u1031\u1014\u103d\u1031\u1038\u1015\u1031\u1038\u1005\u1000\u103a \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1001\u103c\u1004\u103a\u1038<\/h3>\n

      \u1015\u103c\u103f\u1014\u102c-<\/strong> \u1021\u102d\u1019\u103a\u1015\u102d\u102f\u1004\u103a\u101b\u103e\u1004\u103a\u101e\u100a\u103a \u1005\u103d\u1019\u103a\u1038\u1021\u1004\u103a\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1019\u103e\u102f\u1000\u102d\u102f \u1021\u1000\u1031\u102c\u1004\u103a\u1038\u1006\u102f\u1036\u1038\u1016\u103c\u1005\u103a\u1021\u1031\u102c\u1004\u103a 4kW \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u101b\u1031\u1014\u103d\u1031\u1038\u1015\u1031\u1038\u1005\u1000\u103a\u1021\u1010\u103d\u1000\u103a WiFi \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1011\u102c\u1038\u101e\u1031\u102c \u1021\u1001\u103b\u102d\u1014\u103a\u1007\u101a\u102c\u1038\u1000\u102d\u102f \u101c\u102d\u102f\u1001\u103b\u1004\u103a\u101e\u100a\u103a\u104b.<\/p>\n

      \u1016\u103c\u1031\u101b\u103e\u1004\u103a\u1038\u1001\u103b\u1000\u103a \u1017\u102d\u101e\u102f\u1000\u102c:<\/strong><\/p>\n

        \n
      • \u1015\u102b\u101d\u102b \u1006\u102c\u1038\u1000\u1005\u103a:<\/strong> 220V AC supply \u2192 20A MCB \u1000\u102c\u1000\u103d\u101a\u103a\u1019\u103e\u102f \u2192 25A modular contactor (AC-7a) \u1021\u1013\u102d\u1000 contacts \u2192 4kW \u1021\u1015\u1030\u1015\u1031\u1038\u1012\u103c\u1015\u103a\u1005\u1004\u103a<\/li>\n
      • \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1015\u1010\u103a\u101c\u1019\u103a\u1038-<\/strong> WiFi module \u1019\u103e \u1005\u1010\u1004\u103a\u101e\u100a\u1037\u103a 24V DC relay \u2192 Contactor coil A1\/A2 terminals<\/li>\n
      • \u1018\u1031\u1038\u1000\u1004\u103a\u1038\u101b\u1031\u1038-<\/strong> Manual override push-button \u101e\u100a\u103a WiFi \u1000\u102d\u102f \u1000\u103b\u1031\u102c\u103a\u1016\u103c\u1010\u103a\u1015\u103c\u102e\u1038 \u1005\u1000\u103a\u1015\u102d\u102f\u1004\u103a\u1038\u1006\u102d\u102f\u1004\u103a\u101b\u102c \u1021\u101b\u1031\u1038\u1015\u1031\u102b\u103a \u1015\u102d\u1010\u103a\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1001\u103d\u1004\u1037\u103a\u1015\u103c\u102f\u101e\u100a\u103a\u104b<\/li>\n<\/ul>\n
        \"Wiring
        \u1015\u102f\u1036 5: \u1021\u101c\u102d\u102f\u1021\u101c\u103b\u1031\u102c\u1000\u103a \u101b\u1031\u1014\u103d\u1031\u1038\u1015\u1031\u1038\u1005\u1000\u103a \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1019\u103e\u102f\u1021\u1010\u103d\u1000\u103a smart WiFi relay \u1014\u103e\u1004\u1037\u103a VIOX modular contactor \u1000\u102d\u102f \u1015\u1031\u102b\u1004\u103a\u1038\u1005\u1015\u103a\u101b\u1014\u103a\u1021\u1010\u103d\u1000\u103a \u1021\u101e\u1031\u1038\u1005\u102d\u1010\u103a \u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038\u1015\u102f\u1036\u104b.<\/figcaption><\/figure>\n

        \u1015\u102f\u1036 Alt \u1005\u102c\u101e\u102c\u1038:<\/strong> \u201c\u1021\u101c\u102d\u102f\u1021\u101c\u103b\u1031\u102c\u1000\u103a \u101b\u1031\u1014\u103d\u1031\u1038\u1015\u1031\u1038\u1005\u1000\u103a \u1021\u1001\u103b\u102d\u1014\u103a\u1007\u101a\u102c\u1038\u1021\u1010\u103d\u1000\u103a smart WiFi relay \u1014\u103e\u1004\u1037\u103a 24V \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1006\u102c\u1038\u1000\u1005\u103a\u1015\u102b\u101b\u103e\u102d\u101e\u1031\u102c modular contactor \u1021\u1010\u103d\u1000\u103a \u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038\u1015\u102f\u1036\u201d<\/p>\n

        Dwell Time \u1021\u1000\u103b\u102d\u102f\u1038\u1000\u103b\u1031\u1038\u1007\u1030\u1038:<\/strong> \u1024\u1021\u1001\u103c\u1031\u1021\u1014\u1031\u1000\u102d\u102f \u101c\u1031\u1037\u101c\u102c\u1014\u1031\u101e\u1031\u102c \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u101e\u1030\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1015\u102f\u1036\u1000\u102d\u102f \u1001\u103d\u1032\u1001\u103c\u1019\u103a\u1038\u1005\u102d\u1010\u103a\u1016\u103c\u102c\u101b\u102c\u1010\u103d\u1004\u103a \u1042-\u1043 \u1019\u102d\u1014\u1005\u103a \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1000\u103c\u1015\u103c\u102e\u1038 Google \u1019\u103e \u1005\u1031\u102c\u1004\u1037\u103a\u1000\u103c\u100a\u1037\u103a\u101e\u100a\u1037\u103a \u1015\u102b\u101d\u1004\u103a\u1015\u1010\u103a\u101e\u1000\u103a\u1019\u103e\u102f \u1019\u1000\u103a\u1011\u101b\u1005\u103a\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1010\u102d\u102f\u1038\u1019\u103c\u103e\u1004\u1037\u103a\u1015\u1031\u1038\u101e\u100a\u103a\u104b.<\/p>\n

        \u1021\u1001\u103c\u1031\u1021\u1014\u1031 B: EV \u1021\u102c\u1038\u101e\u103d\u1004\u103a\u1038\u1005\u1001\u1014\u103a\u1038 \u1000\u102c\u1000\u103d\u101a\u103a\u1001\u103c\u1004\u103a\u1038<\/h3>\n

        \u1015\u103c\u103f\u1014\u102c-<\/strong> \u1019\u103c\u1031\u1015\u103c\u1004\u103a \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1001\u103b\u1000\u103a\u1000\u102d\u102f \u1010\u103d\u1031\u1037\u101b\u103e\u102d\u1015\u102b\u1000 \u1021\u102c\u1038\u101e\u103d\u1004\u103a\u1038\u1005\u1001\u1014\u103a\u1038\u101e\u100a\u103a 100ms \u1021\u1010\u103d\u1004\u103a\u1038 \u1015\u102b\u101d\u102b\u1000\u102d\u102f \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u101b\u1019\u100a\u103a\u104b.<\/p>\n

        \u1016\u103c\u1031\u101b\u103e\u1004\u103a\u1038\u1001\u103b\u1000\u103a \u1017\u102d\u101e\u102f\u1000\u102c:<\/strong><\/p>\n

          \n
        • \u1021\u1013\u102d\u1000 \u1006\u102c\u1038\u1000\u1005\u103a:<\/strong> Utility supply \u2192 RCBO (residual current breaker\/overcurrent) \u2192 63A AC-7b contactor \u2192 EV \u1021\u102c\u1038\u101e\u103d\u1004\u103a\u1038\u1000\u102d\u101b\u102d\u101a\u102c output<\/li>\n
        • \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u101b\u1031\u1038 \u101a\u102f\u1010\u1039\u1010\u102d\u1017\u1031\u1012:<\/strong> Charger microcontroller \u101e\u100a\u103a \u1019\u103c\u1031\u1015\u103c\u1004\u103a\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u1000\u102d\u102f \u1021\u1006\u1000\u103a\u1019\u1015\u103c\u1010\u103a \u1005\u1031\u102c\u1004\u1037\u103a\u1000\u103c\u100a\u1037\u103a\u101e\u100a\u103a\u104b \u1001\u103b\u102d\u102f\u1037\u101a\u103d\u1004\u103a\u1038\u1001\u103b\u1000\u103a\u1000\u102d\u102f \u1010\u103d\u1031\u1037\u101b\u103e\u102d\u1015\u102b\u1000 (>10k\u03a9), contactor coil \u1019\u103e 24V DC signal \u1000\u102d\u102f \u1016\u101a\u103a\u101b\u103e\u102c\u1038\u1015\u103c\u102e\u1038 contacts \u101e\u100a\u103a < 100ms \u1010\u103d\u1004\u103a \u1015\u103d\u1004\u1037\u103a\u101e\u103d\u102c\u1038\u101e\u100a\u103a\u104b<\/li>\n
        • \u1018\u1031\u1038\u1000\u1004\u103a\u1038\u101b\u1031\u1038 \u101c\u102d\u102f\u1000\u103a\u1014\u102c\u1019\u103e\u102f:<\/strong> IEC 61851-1 \u1014\u103e\u1004\u1037\u103a NEC Article 625 \u101c\u102d\u102f\u1021\u1015\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038\u1014\u103e\u1004\u1037\u103a \u1000\u102d\u102f\u1000\u103a\u100a\u102e\u101e\u100a\u103a\u104b<\/li>\n<\/ul>\n

          Featured Content \u1010\u1014\u103a\u1016\u102d\u102f\u1038:<\/strong> \u1024\u1021\u1001\u103c\u1031\u1021\u1014\u1031\u101e\u100a\u103a EV \u1008\u1031\u1038\u1000\u103d\u1000\u103a \u1000\u103c\u102e\u1038\u1011\u103d\u102c\u1038\u1019\u103e\u102f\u1000\u102d\u102f \u1010\u102d\u102f\u1000\u103a\u101b\u102d\u102f\u1000\u103a\u1000\u102d\u102f\u1004\u103a\u1010\u103d\u101a\u103a\u1016\u103c\u1031\u101b\u103e\u1004\u103a\u1038\u1015\u103c\u102e\u1038 \u201cEV charger protection\u201d \u1021\u1010\u103d\u1000\u103a Google Featured Snippets \u1010\u103d\u1004\u103a \u1015\u1031\u102b\u103a\u101c\u102c\u1014\u102d\u102f\u1004\u103a\u1016\u103d\u101a\u103a\u101b\u103e\u102d\u101e\u100a\u103a\u104b\u201d<\/p>\n

          \n

          \u1005\u103d\u1019\u103a\u1038\u1006\u1031\u102c\u1004\u103a\u101b\u100a\u103a \u101c\u1000\u1039\u1001\u100f\u102c\u1019\u103b\u102c\u1038- Modular \u101e\u100a\u103a \u101b\u102d\u102f\u1038\u101b\u102c\u1011\u1000\u103a \u1021\u1018\u101a\u103a\u1000\u103c\u1031\u102c\u1004\u1037\u103a \u101e\u102c\u101c\u103d\u1014\u103a\u101e\u1014\u100a\u103a\u1038<\/h2>\n\n\n\n\n\n\n\n\n\n\n
          \u1021\u1004\u103a\u1039\u1002\u102b<\/th>\n\u101b\u102d\u102f\u1038\u101b\u102c Contactor<\/th>\n\u1004\u1037\u1039\u1001\u103a\u1004\u1039\u1038 Contactor<\/th>\n\u1021\u102c\u1038\u101e\u102c\u1001\u103b\u1000\u103a<\/th>\n<\/tr>\n<\/thead>\n
          \u1001\u103c\u1031\u101b\u102c<\/strong><\/td>\n\u1021\u1000\u103b\u101a\u103a 4-8 \u101c\u1000\u103a\u1019<\/td>\n17.5mm (0.69 \u101c\u1000\u103a\u1019)<\/td>\n85% \u1014\u1031\u101b\u102c\u1001\u103b\u103d\u1031\u1010\u102c\u1001\u103c\u1004\u103a\u1038 \u2192 \u101e\u102d\u1015\u103a\u101e\u100a\u103a\u1038\u1006\u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c panels<\/td>\n<\/tr>\n
          \u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/strong><\/td>\nBolt-mounted, \u1005\u102d\u1010\u103a\u1000\u103c\u102d\u102f\u1000\u103a \u101d\u102b\u101a\u102c\u1000\u103c\u102d\u102f\u1038<\/td>\nDIN \u1019\u102e\u1038\u101b\u1011\u102c\u1038\u1010\u103d\u1032<\/td>\n\u1005\u1036\u1015\u103c\u102f\u1011\u102c\u1038\u101e\u1031\u102c\u104a \u1000\u102d\u101b\u102d\u101a\u102c\u1019\u101c\u102d\u102f\u101e\u1031\u102c \u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038<\/td>\n<\/tr>\n
          Acoustic Signature<\/strong><\/td>\n65dB (\u201c\u1000\u103b\u101a\u103a\u101c\u1031\u102c\u1004\u103a\u101e\u1031\u102c click\u201d)<\/td>\n20dB (\u1021\u101e\u1036\u1010\u102d\u1010\u103a\u1014\u102e\u1038\u1015\u102b\u1038)<\/td>\n\u101b\u102f\u1036\u1038\/\u101c\u1030\u1014\u1031\u1021\u102d\u1019\u103a \u1014\u1031\u101b\u102c\u1001\u103b\u1011\u102c\u1038\u1019\u103e\u102f\u1000\u102d\u102f \u1016\u103d\u1004\u1037\u103a\u1011\u102c\u1038\u101e\u100a\u103a\u104b<\/td>\n<\/tr>\n
          Coil \u1015\u102b\u101d\u102b \u1005\u102c\u1038\u101e\u102f\u1036\u1038\u1019\u103e\u102f<\/strong><\/td>\n15-25W \u1011\u102d\u1014\u103a\u1038\u1011\u102c\u1038\u1001\u103c\u1004\u103a\u1038<\/td>\n5-8W \u1011\u102d\u1014\u103a\u1038\u1011\u102c\u1038\u1001\u103c\u1004\u103a\u1038<\/td>\n24\/7 \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1019\u103e\u102f \u1005\u1014\u1005\u103a\u1019\u103b\u102c\u1038\u1010\u103d\u1004\u103a 60% \u1005\u103d\u1019\u103a\u1038\u1021\u1004\u103a \u1001\u103b\u103d\u1031\u1010\u102c\u1001\u103c\u1004\u103a\u1038<\/td>\n<\/tr>\n
          \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u1018\u101d<\/strong><\/td>\n100,000-500,000 cycles<\/td>\n1,000,000+ cycles (AC-1)<\/td>\n\u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u101b\u103e\u102d\u101e\u1031\u102c \u101d\u1014\u103a\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a \u101e\u1000\u103a\u1010\u1019\u103a\u1038 10 \u1006 \u1015\u102d\u102f\u101b\u103e\u100a\u103a\u101e\u100a\u103a\u104b<\/td>\n<\/tr>\n
          \u1000\u1014\u1026\u1038\u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a<\/strong><\/td>\n$35-60<\/td>\n$25-45<\/td>\nModular \u1021\u102c\u1038\u101e\u102c\u1001\u103b\u1000\u103a- \u1000\u102f\u1014\u103a\u1000\u103b\u1005\u101b\u102d\u1010\u103a\u101e\u1000\u103a\u101e\u102c\u1001\u103c\u1004\u103a\u1038 + \u101e\u102c\u101c\u103d\u1014\u103a\u1000\u1031\u102c\u1004\u103a\u1038\u1019\u103d\u1014\u103a\u101e\u1031\u102c \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1001\u103b\u1000\u103a\u1019\u103b\u102c\u1038<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
          \n

          \u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038 \u1021\u1000\u1031\u102c\u1004\u103a\u1038\u1006\u102f\u1036\u1038 \u1021\u101c\u1031\u1037\u1021\u1000\u103b\u1004\u1037\u103a\u1019\u103b\u102c\u1038 (\u1021\u1019\u103c\u1014\u103a\u1000\u102d\u102f\u1038\u1000\u102c\u1038)<\/h2>\n

          \u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038\u1019\u1015\u103c\u102f\u1019\u102e<\/h3>\n
            \n
          • \u2713 \u1015\u102b\u101d\u102b supply \u1000\u102d\u102f \u1016\u103c\u1010\u103a\u1010\u1031\u102c\u1000\u103a\u1015\u102b \u2014 \u100a\u103e\u102d\u1014\u103e\u102d\u102f\u1004\u103a\u1038\u101c\u102d\u102f\u1037\u1019\u101b\u1018\u1030\u1038\u104b<\/strong><\/li>\n
          • \u2713 contactor rating \u101e\u100a\u103a load current \u1014\u103e\u1004\u1037\u103a \u1000\u102d\u102f\u1000\u103a\u100a\u102e\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1005\u1005\u103a\u1006\u1031\u1038\u1015\u102b (\u1019\u1031\u102c\u103a\u1010\u102c\u1019\u103b\u102c\u1038\u1021\u1010\u103d\u1000\u103a 125% \u1005\u100a\u103a\u1038\u1019\u103b\u1009\u103a\u1038)<\/li>\n
          • \u2713 AC-7a \u1014\u103e\u1004\u1037\u103a AC-7b \u1021\u1019\u103b\u102d\u102f\u1038\u1021\u1005\u102c\u1038\u101e\u100a\u103a application \u1014\u103e\u1004\u1037\u103a \u1000\u102d\u102f\u1000\u103a\u100a\u102e\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1021\u1010\u100a\u103a\u1015\u103c\u102f\u1015\u102b<\/li>\n
          • \u2713 coil voltage \u101e\u100a\u103a \u1011\u102d\u1014\u103a\u1038\u1001\u103b\u102f\u1015\u103a\u1006\u102c\u1038\u1000\u1005\u103a\u1014\u103e\u1004\u1037\u103a \u1010\u103d\u1032\u1016\u1000\u103a\u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1014\u102d\u102f\u1004\u103a\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1005\u1005\u103a\u1006\u1031\u1038\u1015\u102b<\/li>\n<\/ul>\n

            DIN \u101b\u1011\u102c\u1038\u101c\u1019\u103a\u1038\u1010\u1015\u103a\u1006\u1004\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/h3>\n
              \n
            1. contactor \u1000\u102d\u102f rail groove \u1014\u103e\u1004\u1037\u103a \u100a\u103e\u102d\u1015\u102b<\/li>\n
            2. locking clip \u1000\u102d\u102f \u1011\u102d\u1010\u103d\u1031\u1037\u1015\u102b (\u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a 10N \u1021\u1031\u102c\u1000\u103a\u101e\u102d\u102f\u1037 \u1016\u102d\u1021\u102c\u1038\u1015\u1031\u1038\u101b\u1014\u103a \u101c\u102d\u102f\u1021\u1015\u103a\u101e\u100a\u103a)<\/li>\n
            3. contactor \u101e\u100a\u103a \u1019\u103b\u1000\u103a\u1014\u103e\u102c\u1015\u103c\u1004\u103a\u100a\u102e\u100a\u102c\u1005\u103d\u102c \u1011\u102d\u102f\u1004\u103a\u1000\u103c\u1031\u102c\u1004\u103a\u1038 \u1005\u1005\u103a\u1006\u1031\u1038\u1015\u102b \u2014 \u1005\u1000\u103a\u1014\u103e\u1004\u1037\u103a \u1000\u1015\u103a\u101c\u103b\u1000\u103a modules \u1019\u103b\u102c\u1038\u1000\u103c\u102c\u1038\u1010\u103d\u1004\u103a \u1000\u103d\u102c\u101f\u1001\u103b\u1000\u103a\u1019\u101b\u103e\u102d\u1015\u102b\u104b<\/li>\n<\/ol>\n

              Terminal \u1010\u1004\u103a\u1038\u1000\u103b\u1015\u103a\u1001\u103c\u1004\u103a\u1038 (\u1021\u101b\u1031\u1038\u1000\u103c\u102e\u1038\u101e\u100a\u103a)<\/h3>\n
                \n
              • \u1011\u102f\u1010\u103a\u101c\u102f\u1015\u103a\u101e\u1030 torque \u101e\u102d\u102f\u1037 \u101e\u1010\u103a\u1019\u103e\u1010\u103a\u1011\u102c\u1038\u101e\u1031\u102c calibrated \u101c\u103b\u103e\u1015\u103a\u1005\u1005\u103a\u101d\u1000\u103a\u1021\u1030\u101c\u103e\u100a\u1037\u103a\u1000\u102d\u102f \u1021\u101e\u102f\u1036\u1038\u1015\u103c\u102f\u1015\u102b: \u1015\u102f\u1036\u1019\u103e\u1014\u103a\u1021\u102c\u1038\u1016\u103c\u1004\u1037\u103a 1.2-1.5 Nm<\/strong><\/li>\n
              • \u1021\u101c\u103d\u1014\u103a\u1021\u1000\u103b\u103d\u1036 \u1019\u1010\u1004\u103a\u1038\u1000\u103b\u1015\u103a\u101e\u1031\u102c \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u101e\u100a\u103a \u1001\u1036\u1014\u102d\u102f\u1004\u103a\u101b\u100a\u103a\u1019\u103c\u1004\u1037\u103a\u1019\u102c\u1038\u101e\u1031\u102c \u1021\u1006\u1005\u103a\u1019\u103b\u102c\u1038 \u2192 \u1021\u1015\u1030\u101c\u103d\u1014\u103a\u1000\u1032\u1001\u103c\u1004\u103a\u1038\u1000\u102d\u102f \u1016\u103c\u1005\u103a\u1005\u1031\u101e\u100a\u103a\u104b<\/li>\n
              • \u1021\u101c\u103d\u1014\u103a\u1021\u1000\u103b\u103d\u1036\u1010\u1004\u103a\u1038\u1000\u103b\u1015\u103a\u101e\u1031\u102c \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1019\u103e\u102f\u1019\u103b\u102c\u1038\u101e\u100a\u103a terminal \u1000\u103c\u102d\u102f\u1038\u1019\u103b\u102c\u1038\u1000\u102d\u102f \u1015\u103b\u1000\u103a\u1005\u102e\u1038\u1005\u1031\u101e\u100a\u103a \u2192 \u1001\u103b\u102d\u1010\u103a\u1006\u1000\u103a\u1019\u103e\u102f\u1015\u103b\u1000\u103a\u1000\u103d\u1000\u103a\u1001\u103c\u1004\u103a\u1038<\/li>\n<\/ul>\n

                \u1010\u1015\u103a\u1006\u1004\u103a\u1015\u103c\u102e\u1038\u1014\u1031\u102c\u1000\u103a \u1005\u1019\u103a\u1038\u101e\u1015\u103a\u1001\u103c\u1004\u103a\u1038\u104b<\/h3>\n