Cutler Hammer, Div of Eaton Corp WMZ General Product Line Information

UL 489 DIN Rail Miniature Circuit Breakers
WMZ Circuit Breakers
Product Overview

UL 489 DIN Rail Miniature Circuit Breakers

WMZ Circuit Breakers

PRODUCT OVERVIEW

Optimum and Efficient Protection for Every Application

Product Overview

Optimum product quality, tested reliability and safety stand for
best protection of personnel, installations and plant. Eaton’s WMZ
DIN rail mountable circuit breaker is designed for use in branch
service applications.

Powerful Offering for Machine and System Builders

The WMZ is available with C and D characteristics in accordance
with ULT 489, CSAT C22.2 No.5; UL 1077, CSA C22.2 No.235
and IEC 60947-2.

Typical Applications

Feeder and Branch Circuit Protection

• Convenience receptacle circuits (internal / external)

• Motor control circuits

• Load circuits leaving the equipment (external)

• HACR equipment (heating, air conditioning, refrigeration)

(internal / external)

• PLC I/O points

• Computers

• Power supplies

• Control instrumentation

• Relays

• UPS

• Power conditioners

Features

• Complete range of UL 489 listed DIN rail mounted miniature

circuit breakers up to 40 ampere current rating

• Standard ratings of 10 kAIC at 277/480 Vac

• Select amperages available at 14 kAIC at 277/480 Vac and

10 kAIC at125 Vdc

• Current limiting design provides fast short-circuit interruption

that reduces the let-through energy, which can damage the
circuit

• Suitable for branch circuit device protection

• Thermal-magnetic overcurrent protection

— Two levels of short-circuit protection, categorized by

C and D curves

• Trip-free design — breaker can not be defeated by holding the

handle in the ON position

• Captive screws cannot be lost

• SWD (switching duty) — suitable for switching fluorescent

lighting loads (I

• Fulfill UL 489, CSA C22.2 No.5 and also IEC 60947-2 Standard

• For use in applications for which UL 1077 or

≤ 20A)

n

CSA C22.2 No.235 are also allowed

• Field installable shunt trip and auxiliary switch subsequent

mounting

• Separate version for ring-tongue connection (Type WMZT….T),

terminal screws can be removed (on both sides)

• Module width of only 17.7 mm (per pole)

• Contact Position Indicator (red / green)

• Easy installation on DIN rail

• Possibility for sealing the toggle in ON or OFF position

WMZ Complies with the Latest National and
International Standards

Standards — Feeder and Branch Circuit Protection

UL 489

Standard for molded case circuit breakers
(MCCB) for feeder and branch circuit protection.

Products meet the requirements
of the National Electrical Code

®

(NEC®).

CSA C22.2 No.5

Standard for molded case circuit breakers
(MCCB) for feeder and branch circuit protection
(corresponds closely to UL 489 Standard).

Products meet the requirements of the
Canadian Electrical Code (CEC).

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EATON CORPORATION UL 489 DIN Rail Miniature Circuit Breakers