Square D HJL36125SA Molded Case Circuit Breaker
- 125A
- 3 Pole
- Unit Mount
Square D
HJL36125SA
Molded Case Circuit Breaker
Brand
Square D
SKU
HJL36125SA
Quantity
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Square D HJL36125SA - 125A 3 Pole Molded Case Circuit Breaker
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Description
Delivering reliable thermal-magnetic protection, this 125A, 3-pole molded case circuit breaker belongs to the Square D PowerPacT H-Frame family. It comes equipped with a factory-installed 120VAC shunt trip, allowing for remote tripping in emergency or automated shutdown scenarios. The unit mounts into industrial control panels, switchboards, and motor control centers. With a 65 kAIC rating at 480VAC, it provides excellent current-limiting performance and features a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Series | HJL |
| Amperage | 125A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480Y/277VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 25kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | HJL |
|---|---|
| Terminal Type | Lugs |
| For Use With | Industrial Control Panels, Switchboards, Motor Control Centers, Panelboards |
| 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 Thermal, Adjustable Magnetic |
| Available Options | Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Padlock Attachment, Terminal Shields |
|---|---|
| Accessories | Shunt Trip (120VAC) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, IEC, NOM, UL |
| Temp Rating | 40C |
| Construction Features | Current Limiting, HACR Rated, Visual Trip Indicator, Reverse Feed, Trip-Free Mechanism, RoHS Compliant, Mercury Free, PVC Free |
Product FAQs
8 answersWhat does the SA suffix indicate on the HJL36125SA breaker?
The SA suffix means this breaker includes a factory-installed 120VAC shunt trip. This accessory allows for remote tripping of the breaker in emergency or automated shutdown scenarios.
How is the HJL36125SA mounted in a panel?
This is a unit-mount circuit breaker. It fastens directly to the mounting pan or backplate using screws, rather than plugging onto a busbar or using an I-Line connection.
Is the trip unit on the HJL36125SA adjustable?
Yes, it features a thermal-magnetic trip unit with a fixed thermal setting for overload protection and an adjustable magnetic setting for short-circuit protection.
Can I install this breaker in a Square D I-Line panelboard?
No, the HJL36125SA is a unit-mount breaker designed for feed-thru applications. It does not have the plug-on jaw connections required for I-Line panelboards.
What is the difference between the HJL36125 and the HJL36125SA?
The base HJL36125 is a standard 3-pole breaker, while the HJL36125SA includes a factory-installed 120VAC shunt trip for remote tripping capabilities.
How does the shunt trip function on the HJL36125SA improve system safety?
The integrated 120VAC shunt trip allows the breaker to be wired to external relays, push buttons, or fire alarm systems. This enables remote, immediate disconnection of power during an emergency without requiring personnel to manually operate the breaker handle.
Can the shunt trip on the HJL36125SA be replaced in the field?
Yes, the PowerPacT H-Frame series supports field-installable accessories. While the HJL36125SA comes with a factory-installed 120VAC shunt trip, it can be accessed and replaced under the front accessory cover if necessary.
Can the HJL36125SA be used in DC applications?
Yes, this thermal-magnetic breaker is rated for use in DC systems up to 250VDC, making it suitable for specific industrial control or battery backup applications.
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