Technical Specifications
- Product Model: CZ28-1250Q
- Brand: GANSU
- Warranty: One Year
- Input Voltage: AC 380V 3-phase, 50Hz
- Operating Temperature: -10°C ~ +55°C
- Storage Temperature: -20°C ~ +70°C
- Response Time: ≤ 30ms contact switching action
- Protection Class: IP30 indoor cabinet installation
- Accuracy Class: N/A
- Output Frequency: N/A
- Rated Current Range: Rated working current 1250A
- Communication Interface: Optional auxiliary contact terminals
- Supported Protocols: N/A
- Overload Capacity: Short-circuit withstand capability, thermal overload resistance
- Dimensions (W×H×D): Standard fixed-type low voltage switchgear mounting dimension
Product Overview
The GANSU CZ28-1250Q is a large-capacity low-voltage AC contactor designed for frequent switching control of three-phase AC power circuits. This heavy-duty switching device connects and disconnects high-current loads such as transformers, large motors and power distribution branches, solving unstable contact performance and premature ablation issues under high inrush current conditions. Electrical engineers, switchgear manufacturers and maintenance teams using GANSU low voltage electrical equipment depend on this contactor for reliable power switching in industrial power distribution systems. Optimised contact material and arc extinguishing structure extend service life under frequent operation, making it an essential component for motor control centres and main distribution cabinets. (Word count: 168)
Key Functions
- High-Current Load Switching Control: Rated for 1250A operational current to control large-capacity three-phase loads. Efficient arc extinguishing chamber suppresses electric arcs generated during switch-on and switch-off to avoid contact burnout.
- Long Service Life for Frequent Operations: Specially formulated silver alloy contacts reduce wear caused by frequent make-and-break cycles. Stable electromagnetic operating mechanism ensures consistent pull-in and release performance for long-term continuous operation.
- Auxiliary Signal Feedback Interface: Equipped with normally open and normally closed auxiliary contacts. Status signals can be connected to PLC or relay circuits to realise remote monitoring of contactor switching state.
- Standardised Switchgear Assembly Structure: Unified installation dimensions for easy integration inside low-voltage power distribution cabinets. Modular layout facilitates inspection, maintenance and spare part replacement during equipment overhaul.
