Square D RJA36120CU33A Molded Case Circuit Breaker
- 1200A
- 3 Pole
- I-Line
Quantity
Square D RJA36120CU33A - 1200A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Quantity
Square D RJA36120CU33A - 1200A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Square D |
|---|---|
| Series | RJA |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Frame Type | R |
|---|---|
| Terminal Type | Lugs |
| For Use With | I-Line Panelboards, I-Line Switchboards |
| Wire Gauge | 4x 3/0 AWG - 600 kcmil (Al/Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Trip Unit Model | MicroLogic 5.0 |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Load Side Lugs (AL1200R53K) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NMX J-266, UL 489 |
| Approval | CE, CSA, IEC, NEMA, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | 100% Rated, HACR Rated, True RMS Sensing |
Quantity
Square D RJA36120CU33A - 1200A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Square D |
|---|---|
| Series | RJA |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Frame Type | R |
|---|---|
| Terminal Type | Lugs |
| For Use With | I-Line Panelboards, I-Line Switchboards |
| Wire Gauge | 4x 3/0 AWG - 600 kcmil (Al/Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Trip Unit Model | MicroLogic 5.0 |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Load Side Lugs (AL1200R53K) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NMX J-266, UL 489 |
| Approval | CE, CSA, IEC, NEMA, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | 100% Rated, HACR Rated, True RMS Sensing |
Description
Offering advanced system coordination, the Square D RJA36120CU33A is a 1200A, 3-pole molded case circuit breaker from the PowerPact R-Frame family. It is built to handle complex industrial power distribution needs. This breaker integrates into Square D I-Line panelboards and switchboards. The standardized plug-on mounting style ensures a secure and reliable connection within compatible enclosures. Rated for 65 kAIC at 480V, it utilizes a Micrologic 5.0 electronic trip unit for LSI protection.Specifications
| Brand | Square D |
|---|---|
| Series | RJA |
| Amperage | 1200A |
| Poles | 3 |
| Mounting Style | I-Line |
| Voltage | 240VAC, 480VAC, 600VAC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600VAC |
| Frame Type | R |
|---|---|
| Terminal Type | Lugs |
| For Use With | I-Line Panelboards, I-Line Switchboards |
| Wire Gauge | 4x 3/0 AWG - 600 kcmil (Al/Cu) |
| Max Wire | 600 kcmil |
| Min Wire | 3/0 AWG |
| Trip Technology | Electronic Trip |
|---|---|
| Trip Function Code | LSI |
| Trip Function | Long-Time, Short-Time, Instantaneous |
| Trip Adjustability | Adjustable |
| Trip Unit Model | MicroLogic 5.0 |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment, Motor Operator |
|---|---|
| Accessories | Load Side Lugs (AL1200R53K) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NMX J-266, UL 489 |
| Approval | CE, CSA, IEC, NEMA, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | 100% Rated, HACR Rated, True RMS Sensing |
Product FAQs
5 answersWhat does the 'J' in the RJA prefix represent?
The 'J' indicates the interrupting rating tier for this PowerPacT R-Frame breaker. This J-tier provides maximum interrupting ratings of 100kA at 240VAC, 65kA at 480VAC, and 25kA at 600VAC.
What does the "U33A" suffix in the catalog number indicate?
The U33A suffix specifies that the breaker is equipped with a Micrologic 5.0 electronic trip unit. This provides adjustable LSI (Long-Time, Short-Time, and Instantaneous) protection.
Is this circuit breaker rated for 100% continuous current?
Yes. The "C" in the RJA36120CU33A catalog number indicates it has a 100% continuous current rating. This allows the breaker to carry its full 1200A load continuously when properly installed.
Can I install this circuit breaker in standard unit-mount applications?
No. The RJA prefix designates this as an I-Line plug-in style breaker. It is specifically designed to mount directly onto the bus stack of Square D I-Line panelboards and switchboards. Unit-mount installations require a different frame configuration.
What wire sizes and materials do the standard load lugs accept?
The mechanical lugs on this 1200A breaker accept four conductors per phase. They are compatible with 3/0 AWG to 600 kcmil aluminum or copper (Al/Cu) wire.
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