1SCA022353R4970

ABB 1SCA022353R4970 is OA1G10, a 1 NO auxiliary contact used with ABB OT / OTM / OS / OTDC switch-disconnectors and transfer/change-over switches. ABB’s current eCatalog identifies it as “1-NO AUX SW OT/OS,” rated at 690 V.

In ABB transfer-switch applications such as OTM160…2500E_C_D, the contact mounts on the right-hand side of the switch. ABB specifies a maximum of two auxiliary contacts per side, with Ith = 16 A and conductor capacity up to 2 × 2.5 mm².