Siemens / Allis-Chalmers BZO-121 Baffle Stack Assembly
A precision replacement baffle stack for Siemens / Allis-Chalmers BZO-121 oil circuit breakers (OCBs), machined to OEM dimensional specifications.
- OEMSiemens / Allis-Chalmers
- Model / SeriesBZO-121
- Part typeBaffle stack
- EquipmentOil circuit breakers (OCBs)
- AvailabilityBuilt to order / lead time confirmed at quote
- Internal ref.OCBACBZ003
Overview
Baffle Stack Assembly for the Siemens / Allis-Chalmers BZO-121 oil circuit breaker. 6 per kit. Machined to OEM spec.
About the Siemens Allis-Chalmers BZO-121 Oil Circuit Breaker
The Siemens Allis-Chalmers BZO-121 is an oil circuit breaker with an interrupter design using a baffle stack assembly, arcing nozzle, G-10 push rod, moving contact, and stationary contact to interrupt fault current in oil. The interrupter components require replacement at the manufacturer's recommended overhaul interval. Southern Switch machines complete kits and individual components for the BZO-121.
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 →