Allis-Chalmers BZO 138 Kit
A precision replacement kit for Allis-Chalmers BZO 138 oil circuit breakers (OCBs), machined to OEM dimensional specifications. Material certification available on request.
- OEMAllis-Chalmers
- Model / SeriesBZO 138
- Part typeKit
- EquipmentOil circuit breakers (OCBs)
- DocumentationMaterial certification on request
- AvailabilityBuilt to order / short lead times
- Internal ref.BR-AC-BZO138-KIT
Overview
Contact kit for the Allis-Chalmers BZO 138 oil circuit breaker, arcing nozzle, spring, spring cap, 8- or 10-finger stationary contact, moving contact rod, push rod.
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 stocks 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
Common items are produced on short lead times; 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.
Each part below corresponds to a labeled component on the kit drawing. Click View to open the part’s standalone page, or + Quote to add it to your quote without leaving this page.
| Ref | Part | Qty | Action |
|---|---|---|---|
| A | Arcing Nozzle OCBACBZ103 | 12 | |
| B | Spring OCBACBZ104 | , | |
| C | Spring Cap OCBACBZ105 | , | |
| D | Stationary Contact 8 Finger OCBACBZ106 | 48 | |
| E | Stationary Contact 10 Finger OCBACBZ107 | 60 | |
| F | Moving Contact Rod OCBACBZ100 | 6 | |
| G | Push Rod OCBACBZ108 | 6 |
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 →