Description
Technical Specifications
- Rated Working Current: Main Pole: High Grade Rated Current
- Rated Insulation Voltage: 690 V AC
- Coil Working Voltage: Industrial standard control voltage
- Mechanical Life: 12,000,000 Operations
- Electrical Life: 1,200,000 Operations
- Operating Temperature: -25 °C ~ +75 °C
- Protection Class: IP20
Structural Features
Reinforced electromagnetic mechanism, enlarged contact area, enhanced arc extinguishing system, thickened conductive busbar, high-strength insulating shell, multi-group auxiliary contact configuration.
Functional Characteristics
Control on-off of high-power AC motor and heavy-duty electrical load; expand control loop through auxiliary contacts, realize interlock and linkage control between circuits.
Working Principle
The coil generates electromagnetic attraction after electrification to drive contact closure and switch on the load circuit; cut off coil power, spring resets contact to disconnect circuit; auxiliary contacts synchronously act to complete logic interlock.
Material Composition
Shell: High strength flame-retardant plastic; Main contact: Silver-tungsten alloy (anti-ablation); Iron core: Laminated silicon steel sheet; Coil: High temperature resistant enameled copper wire; Arc extinguishing chamber: Multi-piece metal arc extinguishing grid.
Advantages & Highlights
Large load carrying capacity, strong anti-ablation of contacts, excellent arc extinguishing effect, long service life, stable operation under heavy load, rich auxiliary contact functions, strong adaptability to frequent switching.
Applicable Industries
Large industrial motor control, heavy machinery, air compressor unit, industrial fan, water pump station, metallurgical equipment, large production line power control.
Installation Requirements
- Vertical installation on standard DIN rail, ensure firm clamping.
- Reserve sufficient heat dissipation space around the product.
- Match thickened power cable according to rated current.
- Auxiliary contact wiring follows control logic requirements strictly.
Usage Notes
- Prohibit long-term overload operation.
- Regularly check contact wear, ablation and terminal temperature rise.
- Keep arc extinguishing chamber unobstructed, remove carbon deposits periodically.
- Prevent moisture and conductive dust from entering the internal mechanism.
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