Eaton Type SPB BreakersSystems Pow-R Breakers — 800A to 5000A
Voyten Electric is your exclusive factory-authorized source for Eaton, Cutler-Hammer & Westinghouse Type SPB breakers. Complete breakers — new and Eaton-reconditioned — plus rating plugs, operators, and every renewal part, backed by 1 year warranty and stocked for immediate shipment.
Eaton Type SPB-100 Systems Pow-R Breaker
27+
Technical Documents
800–5000A
Frame Range
50–150 kA
Interrupting Ratings
Exclusive
Voyten Inventory
SPB Accessories & Renewal Parts
12 accessory categories — trip units & rating plugs, operators, shunt trips, auxiliary switches, and every renewal part for the SPB product line.
Complete Parts Availability
Voyten stocks high-demand SPB components for immediate shipment — from rating plugs, Pow-R Trip 7 trip units, and electrical operators to spring release kits, drawout stabs, and complete breaker covers. New parts and Eaton-reconditioned breakers are backed by 1 year warranty.
Trip Units & Rating Plugs
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Electrical Attachments
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Auxiliary Switches
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Electrical Operator Kits
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Gear / Motors
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Handles / Hub
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Key Interlock Provisions
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Shunt Trip Kits
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Spring Release Kits
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Terminals / Drawout Stabs
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Undervoltage Release
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Breaker Cover
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SPB Breaker Models
The Systems Pow-R family spans 50–150 kA interrupting — SPBSR, SPBR, and SPBHR ratings — plus SPBN/SPBNH non-automatic switches. Browse current inventory by model.
Interrupting & Short-Time Ratings
Table 1 — interrupting capacity (kA RMS symmetrical) by series and system voltage.
SPB-50 / SPB-65 → SPB-100 Upgrade Path
How to step up from 50 or 65 kA to 100 kA without modifying the existing cubicle.
Drop-in
100 kA
No structural mods
The SPB-50, SPB-65, and SPB-100 are electrically and mechanically identical except for the interrupting rating. The 100 kA capability is achieved through different arc chutes, moving contacts, and stationary contacts — internal modifications that have no effect on breaker dimensions or electrical performance.
Because the SPB-100 and SPB-65 share identical dimensions, an SPB-100 will slide directly into an existing SPB-50 or SPB-65 cubicle with no modifications to the surrounding structure — a clean upgrade path for facilities whose available fault current has grown past their original 50 or 65 kA rating.
SPB Technical Documentation
Installation guides, renewal parts catalogs, wiring diagrams, and trip unit manuals
Cutler-Hammer SPB 800A Insulated Case Circuit Breaker Manual
Digitrip Retrofit System for Westinghouse Cutler Hammer Small400 to 2000A and Large2500 to 5000A SPB Breakers
#IL33SPB1
Instructions for Field Testing of Systems Pow-R Breakers
#IL15094
Instructions for the Systems Pow-R Breaker and Draw Out Mechanism 2508001600200025003000 AMP Frames
#IB15082
Master Connection Diagram for the Systems Pow-R Breaker All Frame Ratings
#IS15262
Master Connection Diagram for the Systems Pow-R Breaker with Digitrip RMS All Frame Ratings
#IS15545
Removal and Replacement of Moving and Stationary Conductors and Operating Mechanism in a Systems Pow-R Breaker
#IL15156A
Systems Pow-R Breaker Transfer Switches
#TECHNICALDATA29927
Systems Pow-R Breaker with Pow-R Trip 7
#DB29-850
Systems Pow-R Breakers
#29-890
Systems Pow-R Breakers Fixed Mounting Breakers Front and Rear Connected Page 1 SPB 50 250 800 AMP SPB 65 1200 AMP Page 2 SPB 100 250 800 1200 AMP
#DS29870
Instructions for Drawout Cassettes Shutters and Cable Interlocks for Through the Door Westinghouse Type SPB Systems Pow-R Breakers and Series C Types Rd and Rdc Molded Case Breakers
#IL32-697
Need an SPB Part?
Voyten Electric is your exclusive factory-authorized source for the full Eaton/Cutler-Hammer/Westinghouse SPB product line — new and reconditioned breakers, Pow-R Trip 7 trip units, rating plugs, and every renewal part — tested, in stock, and backed by 1 year warranty.