Key Parameters
Parameter Specification
Product Type Auxiliary contact block (front‑mounted)
Model / Part Number CA4‑22E
Poles / Contacts 4‑pole with 2 NO + 2 NC contacts
Mounting Style Front mounting on contactor
Contact Configuration Instantaneous auxiliary contacts
Rated Operational Voltage (Auxiliary) Up to 690 V AC for auxiliary circuits
Rated Operational Current Approx. 6 A @ 24–127 VAC; 2 A @ 500–690 VAC (AC‑15); DC ratings vary by voltage
Rated Insulation Voltage (Ui) Up to 690 V (IEC standard)
Rated Impulse Withstand Voltage (Uimp) Typically 6 kV
Frequency 50 / 60 Hz
Terminal Type Screw terminals
Contact Duty Instantaneous switching for control circuits
Operating Cycles ~1200 cycles/h (AC), ~900 cycles/h (DC)
Compatibility Designed for use with ABB AF contactor range (e.g., AF09 through AF96)
Connection Capacity Flexible and rigid conductors ~0.75–2.5 mm²
Protection Class IP20 on terminals (typical)
Approx. Dimensions ~46 × 46 × 46 mm (cube‑like)
Approx. Weight ~0.055 kg
Application Extend auxiliary contacts on contactors for control signals, interlocks, and automation logic
The ABB CA4‑22E is a 4‑pole front‑mounted auxiliary contact block designed to provide extra signaling and control contacts for contactors in industrial electrical systems. It mounts directly on compatible ABB contactors to extend their auxiliary contact capacity. The block includes two normally open (2 NO) and two normally closed (2 NC) instantaneous auxiliary contacts, making it useful for feedback, interlocking, and control logic applications