ABB Auxiliary Switch Block, MS116 2 NC With Screw Terminal, 16A, 690 V ac, 440V dc, 1SAM201903R1003 SK1-02

This auxiliary switch Block provides a Compact electrical contact module designed to extend control and signalling capabilities in motor systems. It is intended for integration with motor control equipment and offers supplementary switching functionality for industrial set‑ups where additional changeover detection or interlocking is required.

• Two normally closed contacts allow straightforward circuit monitoring • Rated for 16 A to handle moderate control currents safely • Suitable for motors up to 7.5 kW enabling use with small-to-medium drives • Screw Terminal connections permit secure field wiring installation • Operational at 690 VAC and 440V DC supporting diverse supply types • Manufactured to multiple approvals for compatibility with international installations

• Suitable for auxiliary signalling on motor starters and contactors • Ideal for feedback to PLCs in automation racks • Used with control panels requiring extra safety interlocks • Can be used for load sequencing in manufacturing machinery

Wiring is secured via screw terminals that accept standard control conductors for robust terminations.

It is specified for use with motors up to 7.5 kW, making it appropriate for small workshop drives and certain conveyor or pump motors.

The contacts are rated to operate on alternating supplies up to 690V and on direct supplies up to 440 V.

The module offers two normally closed contacts which can be used for fail-safe monitoring or series interlock arrangements.