Square D JRA36225 Molded Case Circuit Breaker
- 225A
- 3 Pole
- I-Line
Quantity
Square D JRA36225 - 225A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Offering high-capacity protection, the Square D JRA36225 is a 3-pole, 225A molded case circuit breaker in the PowerPacT J-Frame family. It safeguards commercial and industrial systems. The unit utilizes the I-Line plug-on mounting system, allowing for rapid phase connections when installed in compatible Square D panelboards and switchboards. Featuring a thermal-magnetic trip unit, it provides LI functions with a 200kAIC rating at 480V. The breaker includes an adjustable magnetic trip.Specifications
| Brand | Square D |
|---|---|
| Part Number | JRA36225 |
| Series | JRA |
| Amperage | 225A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 200kA @ 240VAC, 200kA @ 480VAC, 100kA @ 600VAC |
| Frame Type | JLA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards, Square D I-Line 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 | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Motor Operator, Rotary Handle, Handle Lock |
|---|---|
| Accessories | Load Side Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CCC, CE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Current Limiting, Visual Trip Indicator, Reverse Feed, Non-Interchangeable Trip, 80% Rated, Mercury Free, PVC Free |
Product FAQs
8 answersWhat type of panelboards are compatible with the JRA36225?
This breaker is designed exclusively for Square D I-Line panelboards and switchboards. It utilizes the I-Line plug-in mounting system and cannot be installed in standard QO, NQ, or NF panels.
How much mounting space does the JRA36225 require in an I-Line panelboard?
This 3-pole J-Frame breaker requires 4.5 inches of mounting space on the I-Line bus stack.
What does the "R" in the JRA36225 catalog number signify?
The "R" designates the breaker's interrupting rating tier. In the Square D PowerPacT J-Frame series, an R-rated breaker provides an ultra-high interrupting capacity of 200kA at 480VAC and 100kA at 600VAC.
What is the standard lug kit included with the JRA36225?
The breaker comes standard with the AL250JD lug kit on the load side, which accepts aluminum or copper wire ranging from 3/0 AWG to 350 kcmil. The line side features the I-Line plug-in jaw connection.
Is the JRA36225 rated for 100% continuous current?
No, this breaker is standard rated, meaning it is designed to carry 80% of its 225A nominal rating continuously.
Are the trip settings adjustable on the JRA36225?
This breaker features a thermal-magnetic trip unit with fixed long-time (thermal) protection and an adjustable instantaneous (magnetic) trip setting, allowing you to fine-tune the short-circuit response.
Can the JRA36225 be used to replace lower-rated J-Frame breakers like the JGA36225 or JJA36225?
Yes. The JRA36225 shares the exact same physical dimensions and I-Line mounting footprint as other 225A J-Frame breakers (such as the JGA, JJA, or JLA). Because it features the highest interrupting rating in the series (200kA at 480V), it is a safe, direct upgrade for systems that originally used lower-rated breakers.
Does the JRA36225 require any additional mounting hardware for an I-Line panel?
No additional mounting hardware is required. The breaker features built-in I-Line plug-in jaws on the line side that attach directly to the panelboard bus stack, and it secures with the standard mounting bracket included on the breaker.
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