Circuit breakers

Eaton’s Magnum DS Low-voltage Power Circuit Breakers offer the highest ANSI interrupting and withstand ratings in the industry in the smallest physical size and are the most easily maintained ANSI circuit breakers on the market. Magnum SB are insulated-case power circuit breakers designed for the performance and economic requirements of UL 891. Both are ideal for switchgear and switchboards, providing excellent safety, flexibility, and a high level of performance. Magnum breakers for IEC and DC applications are also available.

Contact me about this product

Back to search

Live chat

Overview Models Resources Support

Coordination

Zone-selective interlocking

Safety

Arc flash reduction

Core features

The DC switch provides disconnect and switching to meet demanding industry standards – UL 1066, UL 489, IEC 60947-2
Common accessories with the Magnum AC line of power circuit breakers reduces inventory and integration time
Fixed and drawout versions address important design criteria, balancing cost, size and serviceability
Internationally approved factory-installed and installed in the accessories identical to the Magnum air circuit breaker offering

Increase your safety

Eaton's Arc Flash Reduction Maintenance system reduces arc flash energy, helping to keep you and workers safe in critical applications include solar and data centers.

Improve your coordination

Enhanced zone selective interlocking improves your coordination, and maximizes system uptime allowing downstream overcurrent devices to clear local faults.

Specifications

Filters

Search within these values

Try another search

Your search "" did not match any documents or products.

Download Links

Application notes

Circuit breaker selective coordination tables - IA01200002E

Industry application paper describing circuit breaker selective coordination tables for low voltage breakers and low voltage distribution assemblies.

(PDF 496 KB , 01/25/2024)
Magnum Digitrip air circuit breakers (Magnum DS and SB) single pole/single-phase response application paper - AP013003EN

This is the application paper describing single pole/single-phase response for Magnum DS and SB.

(PDF 209 KB , 03/26/2025)

Brochures

4000a narrow frame power and air low voltage circuit breaker

Low Voltage Power Circuit Breakers 4000A Narrow

(PDF 651 KB , 09/08/2021)
IEC product brochure

IEC product brochure

(PDF 746 KB , 04/27/2005)
IEC product brochure (legacy version)

(PDF 585 KB , 06/26/2003)
IEC product guide

IEC product guide

(PDF 1 MB , 03/28/2010)
Low voltage circuit breakers linecard

Low voltage circuit breakers linecard

(PDF 877 KB , 01/31/2010)
Magnum DC switches Low voltage power circuit breakers

Magnum DC switches Low voltage power circuit breakers

(PDF 1 MB , 09/25/2015)
Magnum DS low voltage air power circuit breaker

Magnum DS low voltage air power circuit breaker

(PDF 615 KB , 04/14/2022)
Magnum SB low voltage insulated-case power circuit breaker application flexibility and reliable performance

Magnum SB low voltage insulated-case power circuit breaker application flexibility and reliable performance

(PDF 201 KB , 09/08/2021)

Catalogs

Power breakers, contactors and fuses catalog

Volume 4, Tab 3 - This catalog describes application data, standards, certifications, product selection information, technical data and specifications for power breakers, contactors and fuses.

(PDF 7 MB , 07/31/2017)

Certification reports

Certificate of Compliance

Certificate of Compliance

(PDF 285 KB , 12/31/2011)
Magnum DS DOUBLE WIDE UL Certificate of Compliance

(PDF 320 KB , 03/04/2014)
Magnum standard frame (800-4000A) - KEMA MB test certificate - NL19513

Magnum standard frame (800-4000A) - KEMA MB test certificate - NL19513

(PDF 1 MB , 11/30/2010)

Design guides

Power circuit breakers and insulated case circuit breakers

(PDF 10 MB , 05/31/2017)

Installation instructions

Manuals and user guides

DS/DC/DSX/DSL & MDE installation and operation instructions

DS/DC/DSX/DSL & MDE installation and operation instructions

(PDF 6 MB , 12/31/2015)
IB2C12063H03: Magnum SB operation and maintenance

(PDF 16 MB , 03/29/2012)
IB2C13060H05: IEC instruction booklet

(PDF 13 MB , 11/30/2014)
IL70C1037H05: Magnum Digitrip 520, 520M, 520Mi, 520MC, and 520MCi trip units user manual

(PDF 4 MB , 10/31/2018)
Magnum Digitrip models 1150, 1150i, 1150+, 1150i+ user manual - IL70C1036H06

This is the user manual describing Magnum Digitrip models 1150, 1150i, 1150+, 1150i+.

(PDF 2 MB , 04/11/2025)

Product specification guides

Low voltage circuit breakers guide specification

This is the guide specification describing low voltage power circuit breakers, insulated case circuit breakers, and molded case circuit breakers.

(DOCX 1 MB , 02/03/2022)
Metal-enclosed drawout switchgear specification

(DOC 84 KB , 10/31/2017)

Technical data sheets

Magnum DS, SB, and IEC low voltage power circuit breakers

(PDF 26 MB , 09/08/2021)
Magnum low-voltage power circuit breakers (ANSI and IEC) renewal parts and accessories - TD013013EN

This is the renewal parts guide for Magnum low-voltage power circuit breakers (ANSI and IEC).

(PDF 3 MB , 03/26/2025)

Time current curves

White papers

ANSI magnum low voltage power breaker 277 VAC motor white paper

ANSI magnum low voltage power breaker 277 VAC motor white paper

(PDF 132 KB , 03/27/2016)

Wiring diagrams

Zone interlocking between existing Digitrip and Magnum Digitrip - wiring diagram - 4A36343

Zone interlocking between existing Digitrip and Magnum Digitrip - wiring diagram - 4A36343

(PDF 96 KB , 10/31/2000)

Contact me form

Phone: Technical support

For technical support call 877-386-2273 then select OPTION 2 then OPTION 2 and OPTION 3 one more time.

Email: Technical support

PowerBreakerSupport@eaton.com

Locate a channel partner

Eaton is an intelligent power management company dedicated to improving the quality of life and protecting the environment for people everywhere. We are guided by our commitment to do business right, to operate sustainably and to help our customers manage power ─ today and well into the future. By capitalizing on the global growth trends of electrification and digitalization, we’re accelerating the planet’s transition to renewable energy and helping to solve the world’s most urgent power management challenges.

Magnum circuit breakers