Enhance your control circuits with the ABB CA4-40E Auxiliary Contact Block. This 4-pole, front-mounted block features 4 Normally Open (NO) instantaneous contacts, designed for standard industrial environments. It seamlessly integrates with AF contactors, providing reliable auxiliary functions for your automation and control systems..The ABB CA4-40E is a 4-pole auxiliary contact block designed for front mounting. It is equipped with 4 Normally Open (NO) instantaneous contacts and screw terminals. This block is compatible with AF contactors, specifically AF26 to AF96. It operates within an auxiliary circuit voltage range of 24 to 690 volts and has a rated frequency of 50/60 Hz. The conventional free-air thermal current (Ith) is 16 amperes, and it has a rated short-time withstand current (Icw) of 140 amperes for 0.1 seconds and 100 amperes for 1 second. The maximum mechanical switching frequency is 3600 cycles per hour, while the maximum electrical switching frequency is 1200 cycles per hour for AC-15 and 900 cycles per hour for DC-13.