Square D JDA262501 Molded Case Circuit Breaker
- 250A
- 2 Pole
- I-Line
Square D
JDA262501
Molded Case Circuit Breaker
Brand
Square D
SKU
JDA262501
Quantity
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Square D JDA262501 - 250A 2 Pole Molded Case Circuit Breaker
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Description
Providing robust circuit protection, the Square D JDA262501 is a 2-pole, 250A molded case circuit breaker from the PowerPacT J-Frame lineup. It is engineered for heavy-duty commercial and industrial electrical distribution. This component mounts into Square D I-Line panelboards and switchboards, utilizing a plug-on design for efficient installation. Equipped with an AB phase connection, it offers a 25kAIC rating at 240VAC and features a Visi-Trip indicator for rapid fault detection.Specifications
| Brand | Square D |
|---|---|
| Series | JDA |
| Amperage | 250A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC, 250VDC |
| Phase | 1 |
| AIC Rating | 25kA @ 240VAC, 18kA @ 480VAC, 14kA @ 600VAC, 20kA @ 250VDC |
| Frame Type | J |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Switchboards |
| 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, Shunt Trip |
|---|---|
| Accessories | Phase Connection AB |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UKCA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator, Mercury Free, PVC Free |
Product FAQs
7 answersWhat type of panelboards are compatible with the JDA262501?
This breaker is designed for use in Square D I-Line panelboards and switchboards. It features an I-Line plug-on connection for the line side and mechanical lugs for the load side.
How does the I-Line mounting system work on the JDA262501?
The I-Line design allows the line side of the breaker to plug directly into the panelboard bus stack. The load side utilizes standard mechanical lugs for wire terminations, speeding up installation compared to traditional unit-mount breakers.
What does the 'D' in the JDA262501 catalog number signify?
In the PowerPacT J-frame series, the 'D' indicates the interrupting rating. This D-interrupting breaker provides a maximum capacity of 18 kA at 480 VAC and 14 kA at 600 VAC.
Is the trip unit on the JDA262501 adjustable?
Yes, while the thermal (long-time) trip is fixed at 250 amps, the magnetic (instantaneous) trip is adjustable from 1250A to 2500A to help coordinate with downstream devices.
What wire sizes are accepted by the load lugs on this breaker?
The standard mechanical load lugs accept either aluminum or copper wire ranging from 3/0 AWG to 350 kcmil.
Can the JDA262501 be used in DC electrical systems?
Yes, this breaker is rated for up to 250 VDC with an interrupting capacity of 20 kA, making it suitable for specific direct current distribution applications.
How does the JDA262501 differ from JGA or JJA breakers?
The middle letter indicates the interrupting capacity. The JDA is the standard D-interrupting level (18 kA at 480 VAC), whereas JGA (35 kA) and JJA (65 kA) models offer higher interrupting ratings for systems with higher available fault currents.
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