Low-voltage replacement circuit breakers provide a cost-effective way to upgrade to the most current circuit breaker technology while increasing equipment reliability and minimizing downtime. For switchgear, switchboards, and bolted pressure contact switch upgrades, we offer pre-engineered solutions for most major manufacturers’ models including:

Manufacturer Model

Siemens RL, SB, LA

ABB/ITE K Line

Westinghouse DB, DS

GE AK, AKR

Pringle/Eaton QA, CBC

Why replacement breakers?

• Increased reliability and performance

• Preserved investment in existing cubicles

• Reduced downtime and minimal changeover time during upgrade

• Improved employee safety

Low-voltage replacement circuit breakersFeaturing Siemens’ Direct-Rack design

usa.siemens.com/lvreplacements

Why Siemens’ solution?Reliability and performance with Direct-Rack - Siemens’ low-voltage replacement solutions feature our Direct-Rack design, allowing the new circuit breaker to rack directly to the existing equipment’s original primary bus. The Direct-rack design utilizes the primary contact, thus mitigating heat generation that can result when intermediary contacts are used. Intermediary contacts and associated heat generation can create points of maintenance and failure.

Standardized design - Siemens utilizes the proven WL power circuit breaker as the core operator, main contacts, and accessories for our complete family of over 90 different low-voltage replacement circuit breaker designs, reducing spare parts and training requirements. With over one million WL circuit breakers sold worldwide, the WL family offers virtually unlimited configuration capabilities, setting an industry precedent for modularity.

Fully type-tested - All low-voltage replacement circuit breaker solutions are designed, manufactured, and tested to IEEE Std C37.59, ANSI C37.50, and ANSI/IEEE Std C37.13.

Communications - Siemens’ solutions can be equipped with a communications module and integrated into higher-level energy management systems through PROFINET IO, Modbus, Modbus TCP, or PROFIBUS communications.

Trip units for all applications - Siemens offers analog, ETU745, ETU748, and ETU776 trip units.

Safety related features

• Visible ready-to-close indicator

• Customizable interlocking and mechanical trip indication

• Secondary contacts are mounted on the front for safe and easy access

• Available Siemens Sm@rt Dynamic Arc-Flash Sentry (DAS) provides an arc flash mitigation mode to lower the possible arc flash energy

• Available remote racking system

Siemens Industry, Inc.7000 Siemens Road Wendell, NC 27591

For more information, please contact our Customer Support Center. Phone: 1-800-333-7421

usa.siemens.com

Order No: EMTS-B40019-00-4AUS-2Printed in USA©2021 Siemens Industry, Inc.

The technical data presented in this document is based on an actual case or on as-designed parameters, and therefore should not be relied upon for any specific application and does not constitute a performance guarantee for any projects. Actual results are dependent on variable conditions. Accordingly, Siemens does not make representations, warranties, or assurances as to the accuracy, currency or completeness of the content contained herein. If requested, we will provide specific technical data or specifications with respect to any customer’s particular applications. Our company is constantly involved in engineering and development. For that reason, we reserve the right to modify, at any time, the technology and product specifications contained herein.

Manufacturer Original ModelReplacement

Model Amperage (A)

Siemens/Allis-Chalmers

SBA SBW™, SBWF™1,200, 2,000, 3,200,

5,000

SBS SBW, SBWF1,200, 2,000, 3,200,

5,000

SBH SBW, SBWF1,200, 2,000, 3,200,

5,000

RL RLW™800, 1,600, 2,000,

3,200, 4,000, 5,000

RLE RLW800, 1,600, 2,000,

3,200, 4,000

RLF RLFW™ 800, 1,600, 2,000

LA LAW™600, 800, 1,600,

3,000, 4,000

LAF LAFW™ 600, 800, 1,600

General Electric

AK-15/25 AKW™ 800

AKR-30/H AKW 800

AK/AKR-50/H AKW 1,600

AKRT-50/H AKW 2,000

AK-75 AKW 3,200

AK-100 AKW 4,000

AKU-25 AKRW™ 800

AKRU-30 AKRW 800

AKRU-50 AKRW 1,600

Federal Pacific FP FPW™ 800, 1,600

Manufacturer Original Model

ReplacementModel Amperage (A)

ITE/ABBK Line KLW™

800, 1,600, 2,000, 3,000, 4,000

K Don KLFW™ 800, 1,600

Westinghouse

DB-15 DBW™ 225

DB-25 DBW 600

DB-50 DBW 1,600

DB-75 DBW 3,000

DB-100 DBW 4,000

DS-206 DSW™ 800

DS-206S DSW 800

DS-416 DSW 1,600

DS-416S DSW 1,600

DS-420 DSW 2,000

DS-632 DSW 3,200

DS-840 DSW 4,000

DSL-206 DSFW™ 800

DSL-416 DSFW 1,600

Pringle/Eaton

QA QAW™ 1,200, 3,000, 4,000

CBC CBWF™ 1,200, 3,000, 4,000

The following circuit breakers are available as pre-engineered designs. Other manufacturers, models, and ratings can be engineered by Siemens at request.

Reliable Siemens’ design offers increased operations and the Extended Instantaneous Protection function allowing 100% of the full withstand rating of the frame and still providing the ability of the breaker to be applied up to the maximum interrupting rating. Highly accurate internal Rogowski CTs allow for precision protection and metering – saving money on down time, field service, and increased customer satisfaction.

Easy-to-use The ease-of-use – from integrated racking handles, pull- apart, front-mounted terminal blocks, and simple selection and application tools – reduces installation time and errors, adds flexibility, and minimizes training.

Modular and flexible The modularity and flexibility of front-mounted, common plug-in accessories, field upgradable trip units, and field changeable contacts and arc chutes reduce inventory, allow for last-minute adaptations, support quick-ship opportunities, forgive changes, and support the most cost-effective configuration. Electronic or solid-state trip units are available depending on your needs and application.