Allis-Chalmers SDO Full Kit
A precision replacement kit for Allis-Chalmers SDO oil circuit breakers (OCBs), machined to OEM dimensional specifications. Material certification available on request.
- OEMAllis-Chalmers
- Model / SeriesSDO
- Part typeKit
- EquipmentOil circuit breakers (OCBs)
- DocumentationMaterial certification on request
- AvailabilityBuilt to order / short lead times
- Internal ref.BR-AC-SDO-FULL-KIT
Overview
Full interrupter kit for the Allis-Chalmers SDO oil circuit breaker — stationary contact mount, arcing nozzles (upper and lower), washers, bottom plate, stationary contact, moving contact rod, retaining screw and ring, spring, interrupter shell. Kit sold as a set of 6 assembled interrupters.
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 | Stationary Contact Mount OCBACSD006 | 6 | |
| B | Lower Arcing Nozzle OCBACSD004 | 6 | |
| C | Upper Arcing Nozzle OCBACSD007 | 6 | |
| D | Large Hole Washer OCBACSD008 | 24 | |
| E | Small Hole Washer OCBACSD003 | 12 | |
| F | Bottom Plate OCBACSD009 | 6 | |
| G | Stationary Contact OCBACSD002 | 36 | |
| H | Moving Contact Rod OCBACSD001 | 6 | |
| I | Retaining Screw OCBACSD010 | 36 | |
| J | Spring OCBACSD011 | 36 | |
| K | Retaining Ring OCBACSD012 | 6 | |
| L | Interrupter Shell OCBACSD013 | 6 |
Send the model number, asset tag, or just a description — we’ll reply with pricing and lead time within one business day.