QOU145 - Square D 45 Amp 1 Pole 120/240V AC Circuit Breaker Bolt-On

QOU145

QOU145 is a Square D 45 Amp 1 Pole circuit breaker designed for 120/240V AC systems with bolt-on mounting.This miniature circuit breaker features a 10kA interrupt rating at 120/240V AC and 5kA at 48V DC, suitable for HACR and switching duty applications. It uses thermal magnetic trip technology with long time and instantaneous trip functions. The breaker supports line and load side connections via slotted box lugs compatible with AWG 14 to AWG 2 aluminum or copper wiring. It is UL489 listed, CSA certified, and IEC 60947-2 rated, ensuring compliance with major safety standards. The compact dimensions are 4.05 inches height, 0.75 inches width, and 2.95 inches depth.

Key Specifications
• Amperage: 45A
• Voltage: 120/240V AC, 48V DC
• Poles: 1
• Mounting Type: Bolt-On (Unit Mount)
• Interrupt Rating: 10kA at 120/240V AC, 5kA at 48V DC
• Trip Unit: Thermal Magnetic with Long Time and Instantaneous Trip
• Wire Range: AWG 14 to AWG 2 Aluminum/Copper
• Certifications: UL489, CSA 22.2 #5.1, IEC 60947-2
• Dimensions (H x W x D): 4.05" x 0.75" x 2.95"
• Frame/Series: QOU

At Essential Parts, we offer fast shipping, lowest price, and expert support to help you get the right product every time.

Specifications

• Part Number: QOU145
• Manufacturer : Schneider Electric
• Brand : Square D
• Category : Circuit Breaker
• Item Subcategory : Molded Case
• Family : QOU Series
• Type : QOU
• Voltage : 120
• Amperage : 45
• Phase : 1
• Poles : 1
• AIC rating : 10kA@120V
• Connection : Bolt-On
• Functions : LI - Long-Time and Instantaneous
• Protection : Thermal Magnetic

Product Data

• UPC : 785901489139
• GTIN : 00785901489139
• Country of Origin : Mexico
• Dimensions : 4.05 in (102.87 mm) x 0.75 in (19.05 mm) x 2.95 in (74.93 mm) (Height x Width x Depth)
• Weight : 0.369
• Certification : UL listed - IEC - CSA
• Wire Size : AWG 14...AWG 2 aluminium/copper