ABB CA4-13M Auxiliary Contact Block 1NO+3NC Front Mount Screw Terminals 690V

With a rated insulation voltage of 690 V and an impulse withstand of 6 kV, this ABB auxiliary contact block delivers uncompromising reliability in demanding control circuits. The CA4-13M expands the functionality of ABB contactors and thermal overload relays with a versatile 1NO+3NC contact configuration, enabling precise signaling and interlocking. Front mounting ensures quick, tool-free installation without disturbing existing wiring, while screw terminals provide secure, maintenance-free connections for solid or ferruled conductors up to 2.5 mm².

Overview

Engineered for industrial automation, the ABB CA4-13M is a 4-pole auxiliary contact block designed to integrate seamlessly with ABB AF, AX, and AE series contactors, as well as TA/TF series thermal overload relays. Its compact front-mount design allows for easy side or front addition, maximizing panel space efficiency. The contact block is rated for AC-15 and DC-13 utilization categories, making it suitable for both AC and DC control circuits up to 690 V and 250 V respectively. With an operating temperature range from -25 °C to +70 °C, it performs reliably in harsh environments.

What stands out

• High electrical durability: 1.5 million operating cycles under AC-15/DC-13 loads.
• Wide connection range: accepts flexible conductors with ferrules (0.75–2.5 mm²) and solid conductors (1–2.5 mm²).
• Dual degree of protection: IP40 on the front face and IP20 on terminals, ensuring safety in control panels.
• Compliance with international standards: IEC 60947-5-1, UL 60947-5-1, CSA C22.2 No. 60947-5-1.

Technical details

• Contact configuration: 1 Normally Open (NO) + 3 Normally Closed (NC)
• Number of poles: 4-pole
• Mounting type: Front mounting
• Terminal type: Screw terminals
• Rated operational voltage (Ue): 690 V AC, 250 V DC
• Rated insulation voltage (Ui): 690 V (IEC 60947-5-1), 600 V (UL/CSA)
• Rated impulse withstand voltage (Uimp): 6 kV
• Rated operational current (Ie) AC-15 (230V): 6 A
• Rated operational current (Ie) AC-15 (400V): 3 A
• Rated operational current (Ie) DC-13 (24V): 6 A
• Rated operational current (Ie) DC-13 (125V): 1.1 A
• Degree of protection: IP20 (Terminals), IP40 (Front)
• Operating temperature range: -25 to +70 °C
• Storage temperature range: -40 to +70 °C
• Connection capacity (Flexible with ferrule): 1x 0.75...2.5 mm², 2x 0.75...2.5 mm²
• Connection capacity (Solid): 1x 1...2.5 mm², 2x 1...2.5 mm²
• Tightening torque: 1.2 Nm
• Electrical durability: 1.5 million operating cycles (AC-15, DC-13)
• Standards: IEC 60947-5-1, UL 60947-5-1, CSA C22.2 No. 60947-5-1

Our verdict

The ABB CA4-13M auxiliary contact block is a robust and reliable choice for expanding the control capabilities of ABB contactors and overload relays. Its high electrical durability, wide connection range, and compliance with international standards make it a dependable component for industrial automation applications.