Documentation & Downloads
Square D QO2125 Mini Circuit Breaker 125A 2 Pole 120/240VAC 10kA Plug-In Mount
- MPN: QO2125
- UPC: 785901031093
- PPN: SCH-QO2125
CAD
$341.95
/ EA
Available to Order
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
Company Stock:
0
Loading dialog...
Looking to buy a large quantity?
To view product inventory
Description
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 over center, trip free toggle mechanism with quick make, quick break 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 2 pole QO circuit breaker is rated at 125A at 120/240VAC. This unit provides 10kA breaking capacity and plug in mounting. A full line of features and factory installed accessories are also available such as shunt trips, auxiliary switches and alarm switches. QO circuit breakers are UL Listed under UL File E84967 and are CSA Certified under CSA Master Contract 153555. QO circuit breakers are UL Listed under UL File E84967 and are CSA Certified under CSA Master Contract 153555
Features
- Rated for a substantial 125 Amps at 120/240V AC, this 2-pole miniature circuit breaker is engineered to safely feed large residential sub-panels, workshop feeds, or dedicated commercial machinery. For residential contractors and property owners, this provides the robust current capacity needed to run modern multi-load applications without risking nuisance tripping or heat-related fatigue on main panel links.
- Equipped with the signature Square D Visi-Trip visual indicator flag, this breaker displays a highly visible, bright red window the moment an overcurrent or short circuit occurs. Homeowners and maintenance personnel can immediately spot the specific faulted line out of a dense cluster of switches, completely removing the guesswork and saving time during diagnostic troubleshooting.
- Featuring a dedicated 2-space plug-on mounting design, this premium breaker snaps directly onto the busbar of Square D QO load centers, and Speed-D switchboard distribution interiors. The precision-molded casing guarantees a tight, vibration-resistant electrical contact that eliminates loose-joint arching risks, though it will not physically fit into Homeline or competitor brand panels.
- Engineered with a fixed thermal-magnetic trip technology over-center mechanism, this unit features a quick-make, quick-break action that snaps open faster than the blink of an eye during a dead short. This rapid intervention significantly minimizes arc flash energy and prevents intense electrical spikes from traveling downstream, protecting expensive household electronics, server stacks, or HVAC compressors.
- Carrying comprehensive CSA and UL listings along with an official HACR rating, this device is certified to handle the high inductive inrush currents produced by heating, air conditioning, and refrigeration equipment. The breaker is built to function flawlessly up to an ambient temperature rating of 40°C (104°F) while meeting strict Canadian Electrical Code guidelines for long-term safety validation.
- Built with heavy-duty box lug terminals, this assembly safely anchors copper or aluminum wires ranging from 4 AWG up to 2/0 AWG. Tightening the terminal pressure screws to the manufacturer-specified torque of 49.56 lbf-in (5.6 N-m) ensures optimal, code-compliant physical clamping that keeps connection resistance low and eliminates hot spots caused by cyclical thermal expansion.
Documentation & Downloads
Specifications
Additional
- Current Rating
- 125 A
- Breaking Capacity
- 10 kA 120/240 V AC 50/60 Hz
- Number of Poles
- 2P
- Electrical Connection
- box lugs
- Tightening Torque
- 5.6 N.m
- Width
- 38 mm (1.50 in)
- Net Weight
- 0.340 kg (0.75 lb)
- Ambient Temperature Rating
- 40 B0C (104 B0F)
- Mercury Content
- Mercury free
- Warranty
- 18 months
Voltage120/240 V AC
Circuit Breaker Typestandard
Mounting TypePlug-in
Wire SizeAWG 4 to AWG 2/0 copper or aluminum
Height89 mm (3.50 in)
Depth74 mm (2.91 in)
CertificationsUL listed, CSA certified
RoHS ComplianceCompliant with Exemptions
Halogen ContentHalogen free product
Country of OriginMexico
Accessories
Loading carousel layout...
Loading carousel layout...
Similar Products
Loading carousel layout...
Loading carousel layout...
CAD
$341.95
/ EA
Available to Order
Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST
Company Stock:
0
Loading dialog...
Looking to buy a large quantity?
To view product inventory
CAD$341.95/ EA
Loading add to cart quantity...
