Square D JDL36250SA Molded Case Circuit Breaker
- 250A
- 3 Pole
- Unit Mount
Quantity
Square D JDL36250SA - 250A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Providing advanced control, the Square D JDL36250SA is a 250A, 3-pole PowerPacT J-Frame MCCB offering dependable long-time and instantaneous (LI) protection. This unit-mount breaker fits Square D industrial enclosures and motor control centers. It includes standard lugs for secure wire connections. A factory-installed shunt trip enables remote tripping for enhanced safety. It delivers 25kAIC at 240V and features an adjustable magnetic trip.Specifications
| Brand | Square D |
|---|---|
| Series | JDL |
| Amperage | 250A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | J |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D Industrial Enclosures, Switchboards, Motor Control Centers, Control Panels |
| Wire Gauge | 3/0 AWG-350 kcmil (Al/Cu) |
| Max Wire | 350 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Adjustable Magnetic |
| Available Options | Auxiliary Switch, Alarm Switch, Undervoltage Release, Rotary Handle, Motor Operator, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs Included (AL250JD), Shunt Trip (Factory Installed) |
| Standards | CSA C22.2 No 5, HACR, IEC 60947-2, NEMA AB1, NOM-003-SCFI-2000, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UKCA, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator, Reverse Feed |
Product FAQs
9 answersWhat does the "SA" suffix mean in the JDL36250SA catalog number?
The "SA" suffix indicates this breaker includes a factory-installed shunt trip with a control voltage of 110 to 130 VAC. This allows the breaker to be tripped remotely for safety or control purposes.
Can I field-install a shunt trip on a standard JDL36250 breaker instead of buying the JDL36250SA?
Yes. While the JDL36250SA comes with a factory-installed 110 to 130 VAC shunt trip, PowerPacT J-frame breakers support field-installable accessories. You can purchase a standard JDL36250 and add a compatible field-installable shunt trip, such as part number S29386, if needed.
What does the "JDL" prefix indicate in the catalog number?
The "JDL" prefix identifies this as a PowerPacT J-frame breaker with a "D" interrupting rating (14 kAIC at 600VAC) and an "L" termination type, meaning it has mechanical lugs on both the line and load ends for unit mounting.
What enclosures or panels is the JDL36250SA compatible with?
This unit-mount breaker is designed for use in Square D industrial enclosures, switchboards, motor control centers, and control panels. It features feed-thru lug connections for standard cable-in and cable-out installations.
What wire sizes and materials are accepted by the lugs on this breaker?
The factory-installed lugs accept aluminum or copper (Al/Cu) wire ranging from 3/0 AWG to 350 kcmil.
Are the trip settings adjustable on the JDL36250SA?
This thermal-magnetic breaker features a fixed thermal trip for long-time overcurrent protection and an adjustable magnetic trip for instantaneous short-circuit protection.
What does the "LI" trip function code mean for this breaker?
The "LI" code indicates the breaker provides Long-Time (L) and Instantaneous (I) trip functions. The Long-Time function uses a fixed thermal element to protect against sustained overloads, while the Instantaneous function uses an adjustable magnetic element to quickly clear short circuits.
Can I reverse-feed the JDL36250SA?
Yes. PowerPacT J-frame thermal-magnetic circuit breakers are suitable for reverse connection, meaning you can feed power from either the line or load side.
How does the push-to-trip button work on the JDL36250SA?
The integral push-to-trip button on the front cover allows you to manually trip the breaker. This is useful for testing the mechanical operation of the breaker and verifying that the handle moves to the center tripped position.
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