Square D QJA222004 Molded Case Circuit Breaker
- 200A
- 2 Pole
- I-Line
Square D
QJA222004
Molded Case Circuit Breaker
Brand
Square D
SKU
QJA222004
Quantity
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Square D QJA222004 - 200A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for industrial use, the Square D QJA222004 is a 2-pole, 200A MCCB from the Q-Frame family. It provides thermal-magnetic LI protection for 240VAC systems. This unit installs into Square D I-Line panelboards. It serves as an exact replacement for legacy Q22200 breakers, ensuring seamless integration. Boasting a 100kAIC rating, this current-limiting breaker handles severe faults. It features a BC phase connection and a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Series | QJA |
| Amperage | 200A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 240VAC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC |
| Frame Type | QJA |
|---|---|
| Terminal Type | Lugs |
| For Use With | Square D I-Line Panelboards and Switchboards |
| Wire Gauge | 4 AWG - 300 kcmil (Al/Cu) |
| Max Wire | 300 kcmil |
| Min Wire | 4 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release, Padlock Attachment |
|---|---|
| Accessories | Phase Connection BC (Factory Configured) |
| Standards | CSA C22.2 No. 5, HACR, IEC 60947-2, NEMA AB 1, NOM-003-SCFI-2000, UL 489 |
| Approval | ANCE, CSA, IEC, NOM, UL |
| Temp Rating | -25C to 70C |
| Construction Features | HACR Rated, Visual Trip Indicator |
Product FAQs
7 answersWhat does the "4" at the end of the QJA222004 catalog number indicate?
The "4" suffix indicates that this 2-pole breaker is factory-configured for a BC phase connection on the I-Line bus. For an AB phase connection, the suffix is "1", and for an AC phase connection, the suffix is "2".
Can the QJA222004 replace older Square D Q2 series breakers?
Yes, PowerPacT Q-frame circuit breakers are direct replacements for legacy Q2 series devices. The QJA222004 can be used to replace a discontinued 200A, 2-pole Q2 breaker with a BC phase connection in I-Line panelboards without modifying the enclosure.
How does the I-Line plug-on connection work for this breaker?
The I-Line mounting style features blow-on type base jaws that plug directly into the panelboard bus. Under short-circuit conditions, the magnetic forces cause the jaws to grip the bus bar tighter, ensuring a secure electrical connection.
What does the "J" in the QJA222004 part number represent?
The "J" designates the interrupting rating of the breaker. In the PowerPacT Q-frame series, a J-interrupting tier provides a 100kAIC rating at 240VAC.
What is the recommended lug torque for the load terminals on the QJA222004?
The standard tightening torque for the 200A Q-frame load lugs is 248 lb-in (28 N.m) for 4 AWG to 300 kcmil wire. Always verify the exact torque specifications printed on the breaker faceplate before finalizing the installation.
Does this breaker include a push-to-trip feature?
Yes, all PowerPacT Q-frame circuit breakers feature an integral push-to-trip button on the cover. This allows you to manually trip the breaker to verify the mechanical operation of the tripping mechanism.
Is the QJA222004 a 100 percent rated or 80 percent rated circuit breaker?
This is a standard 80 percent rated circuit breaker. The continuous load on the circuit should not exceed 160 Amps, which is 80 percent of its 200A rating, for three hours or more in accordance with standard electrical codes.
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