Siemens Residual current device, 4-pole, 0.3 - 5AProduct Overview The Siemens 3VA9114 0RL21 is a professional residual current device (RCD520B) designed for 3VA11 series molded case circuit breakers. This Type B B+ RCD provides comprehensive ground fault protection with adjustable residual current settings from 0. 03 to 5A and timing delay from 0 to 10,000ms. The 4 pole, load side mounted configuration ensures reliable protection against dangerous shock currents and electrical faults in industrial
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