Technical Specifications Rated main‑circuit current capacity, AC coil control voltage specification, multi‑pole main contact sets, auxiliary contact sets. Operating ambient temperature ‑25 ℃ to +60 ℃, storage temperature ‑40 ℃ to +85 ℃, relative humidity 5%‑95% non‑condensing. DIN‑rail mounting mechanical structure.
Functional Features Electromagnetic coil drives mechanical contact closure and opening to complete main‑circuit load switching. Provides auxiliary contact sets for status feedback and interlock logic. Resists electric‑arc erosion during contact switching. Supports repeated high‑cycle switching operations for industrial load control.
Application Scenarios Load switching component for motor control centers, power distribution cabinets and industrial auxiliary circuit control loops in power plant, chemical and manufacturing sites.
Performance Parameters Rated continuous load current capacity, qualified mechanical and electrical service life, stable contact pull‑in and drop‑out characteristics.
Material Composition Flame‑retardant plastic housing. Electromagnetic coil assembly, iron‑core magnetic circuit components. Silver‑alloy main contact and auxiliary contact assemblies. Mechanical transmission linkage parts. Screw‑type wiring terminals, DIN‑rail clamping hardware.
Structural Characteristics Standard DIN‑rail contactor housing dimension. Main‑circuit high‑power terminals locate on upper and lower sides. Auxiliary signal terminals arrange on front side. Internal electromagnetic coil and magnetic iron‑core drive contact linkage mechanism. Quick‑fit DIN‑rail clip for cabinet installation.
Working Principle After coil power is cut off, spring force resets linkage mechanism, main contacts open and disconnect load circuit. Auxiliary contacts change status synchronously for external interlock and status feedback.
Installation Requirements Tighten main‑circuit load wiring terminals and auxiliary circuit wiring terminals following torque specification. Apply coil control power, test contact pull‑in and drop‑out action and verify auxiliary contact status change.
Usage Notes Coil control voltage must match rated specification. Wiring torque shall comply with official requirement. Avoid operating environment with heavy conductive dust and corrosive gas.
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