Sprecher+Schuh CA7-43-10-120 Contactor
1. Product Overview
The CA7-43-10-120 is a high-performance three-phase AC contactor in the Sprecher+Schuh CA7 series, designed for industrial motor control and power distribution applications. This model adopts a modular structure and complies with the IEC 60947-4-1 standard.
2. Core parameters
Technical indicators Specifications
Rated operating current (Ie) 43A (AC-3, 400V)
Rated insulation voltage (Ui) 690V
Control voltage 120V AC (50/60Hz)
Number of poles 3 poles + 1NO auxiliary contact
Mechanical life 10×10⁶ operations
Electrical life 1×10⁶ times (AC-3)
Protection level IP20 (needs to be installed in the control cabinet)
3. Structural features
Electromagnetic system: optimized AC operating coil, power consumption ≤12VA
Contact system:
Main contact: silver alloy material, with arc extinguishing grid
Auxiliary contact: 1 normally open (expandable)
Installation method: 35mm DIN rail or screw fixing
Modular design: easy to expand:
Auxiliary contact module (LA7 series)
Mechanical interlocking device
Overload relay (KTA7 series)
4. Protection features
Built-in surge suppression circuit (RC element)
Coil undervoltage release characteristics (0.7-1.25Ue)
Anti-vibration design (compliant with IEC 60068-2-6)
5. Typical applications
Three-phase motor control (power ≤ 22kW/400V)
Industrial compressor system
Water pump control device
Heavy-duty conveyor belt drive
HVAC system power control