Auxiliary contact Abb NC front CA401

Auxiliary contacts are secondary switching devices that operate in conjunction with primary switching equipment such as circuit breakers, relays, and contactors. These contacts are physically connected to the main switching mechanism and are activated simultaneously.

What are they used for? Auxiliary contacts are used for various functions, e.g. self-holding, consent/block, signaling, interlocking.

Features:

• Abb Series
• Rated impulse withstand voltage (Uimp) 6 kV
• Rated insulation voltage (Ui) 690 Vac
• Rated auxiliary circuit operating voltage 24...690 Vac
• Auxiliary circuit cable cross-sections Flexible with Ferrule 1/2x 0.75 ... 2.5 mm²
• Auxiliary circuit cable cross-sections Flexible with Insulated Ferrule 2x 0.75 ... 1.5 mm² Auxiliary circuit
• Cable cross-sections for auxiliary circuits Flexible with Insulated Ferrule 1x 0.75 ... 2.5 mm² Cable cross-sections
• Auxiliary circuit cable cross sections Rigid 1/2x 1 ... 2.5 mm²
• Conventional free air thermal current (Ith) as per IEC 60947-5-1, q = 40 °C 16 A
• Maximum electrical switching frequency AC-15 1200 cycles per hour - DC-13 900 cycles per hour
• Max. mechanical switching frequency 3600 cycles per hour
• Mounted auxiliary contacts 0 NO, 1 NC
• Type of front mounting
• Number of NC auxiliary contacts 1
• Number of NO auxiliary contacts 0
• Auxiliary circuit rated frequency 50 / 60 Hz
• Type of terminal Screw Terminals
• Auxiliary circuit tightening torque 1.2 Nm
• Auxiliary circuit cable stripping length 10 mm