B&B Electronics SH-125 Nova Controller Motor Drive

The B&B SH-125 Nova Controller Motor Drive is a compact, single‑axis DC motor drive rated for 1/4 horsepower and designed to operate from a 115 VDC supply. It provides 115 VDC to the motor’s field and armature circuits and includes an input fuse rated at 8 A to protect the controller. As part of the Nova Controller family from B&B Motor & Control, the SH-125 is a discontinued model that is commonly found on surplus marketplaces. The unit’s 115 VDC field/armature configuration and 1/4 HP rating describe a small, low‑power drive suitable for compact automation tasks where a straightforward, single‑axis DC control solution is appropriate. Because the model is no longer manufactured, buyers typically source it through used or surplus channels and may need to verify compatibility with their specific DC motor and wiring arrangement before integration.