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QOU245

QOU Miniature Circuit Breakers and Switches Unit Mount (Cable-in/Cable-out)

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QOU Miniature Circuit Breakers and Switches

Application Information

Line and Load Connections

QOU miniature circuit breakers are supplied with two types of lug configuration as standard, depending

on the continuous current rating:

• 10–70 ampere one- and two-pole; reversible lugs

• 10–60 ampere three-pole; reversible lugs

• Other ampere ratings; forward lugs only

The box-type lugs supplied on QOU miniature circuit breakers are UL Listed and CSA certified to

accept solid or stranded, aluminum or copper conductors These lugs are UL Listed to be used with

wire rated at 140° F, 167° F and 194° F (60° C, 75° C and 90° C), sized according to the NEC 176° F

(75° C) temperature rating. See the Accessories section for more information on terminations.

Optional terminations, such as quick connectors, are also available. See the Accessories section for

more information on terminations.

Ring-tongue terminals can be factory ordered using the following catalog number designations:

• QOU_ _ _3100 (ring-tongue terminal wired from front)

• QOUR_ _ _5283 (ring-tongue terminal wired from rear)

Mounting Provisions

QOU miniature circuit breakers are supplied with mounting brackets for both line and load side

support. Mounting brackets are field installable and can be attached to the front or back of the circuit

breaker molded case. See the Accessories section for more information on mounting brackets.

Tapped mounting feet can be ordered using the catalog number designation QOU_ _ _3100.

All QOU miniature circuit breakers also come equipped with slots in the molded case for DIN rail

mounting.

These miniature circuit breakers are designed for use with a standard 35 mm DIN mounting rail

(DIN/EU 50 022, 0.30 x 1.38 in. [7.5 mm x 35 mm]).

Standards

Square D brand QOU miniature circuit breakers are manufactured and tested according to the

following standards:

• UL Standard 489 (File E84967)

• NEMA Standard AB1

• Canadian Standards Association CSA C22.2 No. 5-02

• IEC 60947-2

• CE

Square D brand QOU non-automatic switches comply with:

• UL Standard 489

• Canadian Standards Association CSA C22.2 No. 5-02

NOTE: Circuit breakers are to be applied by guidelines detailed in the NEC and other applicable

electrical codes.

09/2005

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© 2005 Schneider Electric All Rights Reserved

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