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Siemens / Allis-Chalmers SDO Stationary Finger Spring replacement
Siemens / Allis-Chalmers · SDO

Siemens / Allis-Chalmers SDO Stationary Finger Spring

A precision replacement spring for Siemens / Allis-Chalmers SDO oil circuit breakers (OCBs), machined to OEM dimensional specifications. Material certification available on request.

  • OEMSiemens / Allis-Chalmers
  • Model / SeriesSDO
  • Part typeSpring
  • EquipmentOil circuit breakers (OCBs)
  • DocumentationMaterial certification on request
  • AvailabilityBuilt to order / short lead times
  • Internal ref.OCBACSD010
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Overview

Stationary Finger Spring for the Siemens / Allis-Chalmers SDO oil circuit breaker. 36 per kit. Machined to OEM spec.

About the Siemens Allis-Chalmers SDO Oil Circuit Breaker

The Siemens Allis-Chalmers SDO is an oil circuit breaker interrupter design sharing lineage with the Allis-Chalmers SDO. Its interrupter components. Stationary contact finger, moving contact rod, nozzle, and springs. Require replacement at the manufacturer's recommended overhaul interval. Southern Switch machines replacement components and stocks complete kits for the Siemens 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

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.

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