1SBH137001R1431

ABB NF31E-14 (1SBH137001R1431) is a 4-pole auxiliary contactor / contactor relay with 3 Normally Open and 1 Normally Closed contacts, designed for switching auxiliary and control circuits.

It uses ABB’s AF electronic coil technology, allowing operation over a wide 250–500 V AC 50/60 Hz and 250–500 V DC control-voltage range. The electronic coil handles significant voltage variations, while built-in surge protection helps eliminate the need for a separate surge suppressor. The mechanically linked contacts comply with IEC 60947-5-1 requirements.