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Square D BGL36125 Molded Case Circuit Breaker
- 125A
- 3 Pole
- Unit Mount
Square D
BGL36125
Molded Case Circuit Breaker
Brand
Square D
SKU
BGL36125
Quantity
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Square D BGL36125 - 125A 3 Pole Molded Case Circuit Breaker
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Description
Built for robust power distribution, the Square D BGL36125 is a 125-amp, 3-pole molded case circuit breaker from the PowerPacT B-Frame family. It provides fixed long-time and instantaneous trip functions for commercial facilities. Designed for unit-mount configurations, this breaker installs into industrial control panels, switchboards, and standard enclosures. It features a 35kAIC rating at 480VAC and includes patented EverLink lugs to prevent loose connections due to thermal cycling.Specifications
| Brand | Square D |
|---|---|
| Part Number | BGL36125 |
| Series | BGL |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 208Y/120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 20kA @ 250VDC |
| Frame Type | BGL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Industrial Control Panels, Switchboards |
| Wire Gauge | 14 AWG - 3/0 AWG (Al/Cu) |
| Max Wire | 3/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Rotary Handle, Motor Operator, Padlock Attachment |
|---|---|
| Accessories | EverLink Lugs |
| Standards | CSA C22.2 No. 5, EN/IEC 60947-2, GB 14048.2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, EAC, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
Product FAQs
8 answersWhat does "Unit Mount" mean for the BGL36125?
Unit mount means this breaker is designed to be installed on a backpan or DIN rail using screws or clips, rather than plugging directly into an I-Line panelboard bus. It features feed-thru lug connections for line and load wiring.
Can I install the BGL36125 in a Square D I-Line panelboard?
No. The BGL36125 is a unit-mount breaker. For I-Line panelboards, you need an I-Line version of the PowerPacT B-frame, such as the BGA or BJA series, which feature plug-on bus connections.
What wire sizes are accepted by the standard lugs on this breaker?
The factory-installed lugs accept aluminum or copper wire ranging from 14 AWG to 3/0 AWG.
Is the BGL36125 suitable for reverse feeding?
Yes. Square D PowerPacT B-frame unit-mount circuit breakers with thermal-magnetic trip units can be reverse fed without any reduction in performance or ratings.
Are the trip settings on the BGL36125 adjustable?
No. This breaker features a fixed thermal-magnetic trip unit with non-adjustable long-time and instantaneous (LI) trip functions.
What does the "G" in the BGL36125 catalog number indicate?
The "G" designates the interrupting rating of the breaker within the PowerPacT B-frame family. It indicates a maximum rating of 65kA at 240VAC, 35kA at 480VAC, and 18kA at 600Y/347VAC.
What types of enclosures or panels is this breaker typically used in?
The BGL36125 is commonly used in industrial control panels, switchboards, and motor control centers that require a 125A unit-mount breaker.
Does this breaker support DIN rail mounting?
Yes, PowerPacT B-frame unit-mount breakers like the BGL36125 can be mounted on a standard DIN rail or directly to a backpan.
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