3VA9988-0AA11 Siemens SENTRON Auxiliary Contact - 2NC + 4NO, 6 Contact, Side Mount, 10 A

Siemens 3VA Auxiliary Contact and Undervoltage Release_x000D_ The auxiliary and alarm switches for 3VA molded case circuit breakers can be installed in all sizes of all breakers up to 630 A._x000D_ All auxiliary and alarm switches are designed as changeover contacts and therefore provide a high degree of flexibility for planning and installation purposes_x000D_ Auxiliary switches signal the position of the main contacts of the molded case circuit breaker (RS 874-4534 and 874-4537)_x000D_ Trip alarm switches signal every circuit breaker trip, regardless of the cause of the trip (RS 874-4512 and 874-4515)_x000D_ Electrical alarm switches are operated as soon as the main contacts of the molded case circuit breaker open in the event that the breaker is tripped by the ETU (RS 874-4519)_x000D_ Short circuit alarm switches signal trips only if they have been initiated by a short circuit (RS 874-4528)_x000D_ Undervoltage releases trip the molded case circuit breaker in the event that the rated voltage fails or drops to between 70 % and 35 % of its normal value (in compliance with the relevant standard)_x000D_ The units are available with rated voltages in the following range:_x000D_ 230 VAC (RS 874-4525)_x000D_ 24 VDC (RS 874-4521)_x000D_ Shunt trips of type STL can be fitted in the left-hand accessories compartment as an alternative to an undervoltage release. The units are available with five rated voltages in the following range:_x000D_ 230 VAC (RS 874-4540)_x000D_ 24 VAC/VDC (RS 874-4531)_x000D_ Siemens 3VA MCCBs and accessories