Allis-Chalmers BZO-138 Spring Cap
A precision replacement spring cap for Allis-Chalmers BZO-138 oil circuit breakers (OCBs), machined to OEM dimensional specifications.
- OEMAllis-Chalmers
- Model / SeriesBZO-138
- Part typeSpring cap
- EquipmentOil circuit breakers (OCBs)
- AvailabilityBuilt to order / lead time confirmed at quote
- Internal ref.OCBACBZ105
Overview
Spring Cap for the Allis-Chalmers BZO-138 oil circuit breaker. Machined to OEM spec.
About the Allis-Chalmers BZO-138 Oil Circuit Breaker
The Allis-Chalmers BZO-138 is an oil circuit breaker used in distribution substations for fault interruption and load switching. Its interrupter assembly includes an arcing nozzle, moving contact rod, push rod, spring, spring cap, and stationary contact in both 8-finger and 10-finger configurations. The interrupter components wear through interrupting duty and require replacement at the manufacturer's recommended overhaul interval. Southern Switch machines the complete interrupter kit and individual components for the BZO-138.
Why replace worn OCB contacts
Pitted or eroded oil-circuit-breaker contacts increase resistance and weaken interruption. Precision replacements restore dependable making and breaking under load.
Stock, lead time & reverse engineering
Lead time is confirmed at quote; discontinued or hard-to-find parts are reverse-engineered from a sample, a drawing, or a model number. Based in Palm Harbor, FL, Southern Switch & Contacts manufactures and ships replacement parts to utilities nationwide, and has served the industry since 1982.
Worn but not scrap? Send us your used contacts. We recondition them to OEM dimension, or machine a new set from your sample, and return them tested and documented. Often cheaper and faster than buying new.
Send the model number, asset tag, or just a description, we’ll reply with pricing and lead time within one business day.
Net 30 with an accepted PO, no credit application required. How we do business →