Bell + Howell 598435R C-60131-4 DC motor drive/controller, 1.5 HP armature, 180 VDC arm, 230 VAC input. Open-frame module on finned aluminum heatsink with terminal strip labeled 1–11, transformer, AMP 583301-1 connector, and DALE RH-50 50W 0.25Ω 1% resistor. Serial No. 36924. Includes mounting standoffs as pictured.

Condition note: From a closing industrial facility. Untested but presumed to be working well. Sold exactly as shown in pictures.

Key specifications (from label and visual inspection):

- Brand: Bell + Howell

- Part/Model: 598435R, C-60131-4

- Function: DC motor speed controller/armature power module

- Motor rating: 1-1/2 HP (1.5 HP)

- Armature voltage: 180 VDC (labeled “180 VLT ARM”)

- Input: 230 VAC

- Construction: Aluminum heatsink base, open-frame wiring, screw terminals 1–11

- Components noted: DALE RH-50 50W 0.25Ω resistor; AMP 583301-1 connector; transformer as pictured

What’s included: the single drive module only, no additional cables or accessories.

Applications: Replacement drive module for Bell + Howell equipment, likely Mailstar series of mail inserters, and other industrial DC motor drive applications where a 230 VAC in / 180 VDC armature, ~1.5 HP controller is required.

Please verify compatibility with your equipment before purchase.