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Square D QOB245 120/240 Volt 45 Amp Miniature Circuit Breaker

MFG Part #: QOB245
UPC: 78590136830 78590136830
Online Part #: 126381


QO and QOB one, two and three pole thermal magnetic circuit breakers provide overcurrent protection and switching on ac and dc systems. These circuit breakers have an overcenter, trip-free toggle mechanism with quick-make, quickbreak action and positive handle indication They also have VisiTrip trip indication, which provides a visual indication that the circuit breaker has tripped and interrupted the circuit. This QOB miniature breaker is rated as 45 A, 120/240 V, and 2 pole. This unit provides 10 kA breaking capacity and bolt on mounting. A full line of factory installed accessories is also available such as shunt trips, auxiliary switches and alarm switches. QO breakers use a compact 3/4 inch width design for small system footprint. QO circuit breakers are UL Listed under UL File E84967 and are CSA Certified under CSA Master Contract 153555

Detailed Information

Make and Model

Online Part #: 126381
MFG Name: Schneider Electric


Sub Brand: QO
Voltage Rating: 120/240 VAC
Length: 2.91 in
Amperage Rating: 45 A
Interrupt Rating: 10KA
Connection: BOX LUGS #8 TO #2 AWG(AL/CU)
Prop65_Warning: WARNING: This product can expose you to chemicals including: Diisononyl phthalate (DINP), which is known to the State of California to cause cancer, and Di-isodecyl phthalate (DIDP), which is known to the State of California to cause birth defects or other reproductive harm. For more information go to
Application: HACR RATED,QO

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