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Square D KHL362501287 Molded Case Circuit Breaker
- 250A
- 3 Pole
- Unit Mount
Square D
KHL362501287
Molded Case Circuit Breaker
Brand
Square D
SKU
KHL362501287
Quantity
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Square D KHL362501287 - 250A 3 Pole Molded Case Circuit Breaker
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Description
Offering enhanced control capabilities, the Square D KHL362501287 is a 3-pole, 250A molded case circuit breaker. The 1287 suffix indicates a factory-installed auxiliary switch, allowing facility managers to monitor breaker status remotely within 600VAC systems. Designed for unit-mount applications, it installs into Square D switchboards and motor control centers. When upgrading this legacy K-Frame unit, the PowerPact JGL36250 serves as the substitute.Specifications
| Brand | Square D |
|---|---|
| Part Number | KHL362501287 |
| Series | KHL |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 35kA @ 480VAC, 25kA @ 600VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Square D Enclosures, Switchboards, Motor Control Centers |
| Wire Gauge | 4 AWG - 350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Shunt Trip, Undervoltage Release, Alarm Switch |
|---|---|
| Accessories | Auxiliary Switch (Factory Installed), Line and Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity, HACR Rated |
Product FAQs
5 answersWhat does the 1287 suffix indicate on the KHL362501287 catalog number?
The 1287 suffix designates a factory-installed auxiliary switch. This accessory provides remote signaling of the breaker status, allowing facility managers or control systems to monitor whether the contacts are open or closed.
What is the modern replacement for this legacy K-Frame breaker?
The KHL362501287 is part of the legacy Square D K-Frame series. For new installations or direct upgrades, the current equivalent is the PowerPact J-Frame, specifically the JGL36250, which matches the 250A capacity and interrupting ratings.
How is this breaker mounted in a panel or switchboard?
This is a unit-mount, bolt-on circuit breaker. It bolts directly to the backpan or mounting surface inside compatible Square D enclosures, switchboards, and motor control centers, rather than plugging onto a busbar like I-Line variants.
How does the trip unit operate on the KHL362501287?
It utilizes a thermal-magnetic trip unit with LI (Long-Time and Instantaneous) functions. The thermal element for overload protection is fixed, while the magnetic element for short-circuit protection is adjustable, allowing electricians to coordinate the instantaneous trip point with downstream loads.
What safety and application standards does this breaker meet?
The KHL362501287 is UL 489 Listed and CSA certified. It is also HACR rated, making it approved for use with heating, air conditioning, and refrigeration equipment motor loads.
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