Allis-Chalmers SDO Spring
A precision replacement spring for Allis-Chalmers SDO oil circuit breakers (OCBs), machined to OEM dimensional specifications.
- OEMAllis-Chalmers
- Model / SeriesSDO
- Part typeSpring
- EquipmentOil circuit breakers (OCBs)
- AvailabilityBuilt to order / lead time confirmed at quote
- Internal ref.OCBACSD011
Overview
Spring for the Allis-Chalmers SDO oil circuit breaker. 36 per kit. Machined to OEM spec.
About the Allis-Chalmers SDO Oil Circuit Breaker
The Allis-Chalmers SDO is an oil circuit breaker used in substation fault interruption applications. Its interrupter assembly includes a stationary contact mount, upper arcing nozzle, offset rod, retaining ring, bottom plate, interrupter shell, and spring. The interrupter components wear through interrupting duty and require replacement at overhaul. Southern Switch machines replacement components and interrupter kits for the Allis-Chalmers SDO.
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 →