Square D HGP36125 Molded Case Circuit Breaker
- 125A
- 3 Pole
- Unit Mount
Square D
HGP36125
Molded Case Circuit Breaker
Brand
Square D
SKU
HGP36125
Quantity
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Square D HGP36125 - 125A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for robust power distribution, the Square D HGP36125 is a 3-pole, 125A unit mount molded case circuit breaker. It provides dependable long-time and instantaneous (LI) protection with fixed thermal and magnetic trip settings. Part of the PowerPacT H-Frame family, this breaker is built to mount into industrial enclosures, switchboards, and motor control centers. It offers an interrupting capacity of 65kAIC at 240V, equipped with load-side lugs and a line-side terminal nut.Specifications
| Brand | Square D |
|---|---|
| Part Number | HGP36125 |
| Series | HGP |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC, 500VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 208Y/120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 18kA @ 600Y/347VAC, 18kA @ 600VAC, 20kA @ 250VDC, 20kA @ 500VDC |
| Frame Type | HGP |
|---|---|
| Terminal Type | Stud/Tapped Pad |
| For Use With | Square D Industrial Enclosures, Switchboards, Motor Control Centers |
| Wire Gauge | 14-3/0 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator, Rotary Handle |
|---|---|
| Accessories | Load Side Lugs Included, Line Side Terminal Nut |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, HACR, RoHS, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, 80% Rated, Reverse Feed, Mercury Free, PVC Free |
Product FAQs
5 answersWhat type of protection does the thermal-magnetic trip unit in the HGP36125 provide?
The fixed thermal-magnetic trip unit delivers two levels of protection (LI). The thermal component provides a long-time delay to protect against sustained overloads, while the magnetic component offers instantaneous tripping to quickly clear severe short circuits.
What type of line and load connections does the HGP36125 feature?
This specific configuration includes a terminal nut on the line side (ON end) for bus or ring terminal connections, and mechanical lugs on the load side (OFF end). The load-side lugs are dual-rated for aluminum and copper (Al/Cu) wire from 14 AWG to 3/0 AWG.
Can the HGP36125 be installed in direct current (DC) applications?
Yes, this breaker is fully rated for DC power systems. It provides an interrupting capacity of 20kA at both 250VDC and 500VDC, making it suitable for industrial DC control panels and distribution networks.
Does the HGP36125 support field-installable accessories?
Yes, as a PowerPacT H-Frame breaker, it accepts a wide variety of standardized, field-installable accessories like auxiliary switches, shunt trips, and undervoltage releases. Many of these accessories are interchangeable across the PowerPacT H-Frame and J-Frame series.
What does the G in the HGP36125 catalog number indicate?
The G designates the breaker's interrupting rating tier within the PowerPacT series. For this model, the G-rating provides a high interrupting capacity of 65kA at 240VAC, 35kA at 480VAC, and 18kA at 600VAC.
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