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Square D QJA221001 Molded Case Circuit Breaker
- 100A
- 2 Pole
- I-Line
Square D
QJA221001
Molded Case Circuit Breaker
Brand
Square D
SKU
QJA221001
Quantity
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Square D QJA221001 - 100A 2 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial power distribution, the Square D QJA221001 is a 100A molded case circuit breaker from the PowerPacT Q-Frame family. It provides reliable thermal-magnetic overcurrent protection for demanding electrical systems. This unit mounts into Square D I-Line panelboards, utilizing a factory-configured AB phase connection. It serves as a drop-in replacement for legacy Q22100 breakers. Rated for 100kAIC at 240VAC, this MCCB includes a Visi-Trip indicator.Specifications
| Brand | Square D |
|---|---|
| Series | QJA |
| Amperage | 100A |
| Poles | 2 |
| Mounting Style | I-Line |
| Voltage | 208Y/120VAC, 240VAC |
| Phase | 1 |
| AIC Rating | 100kA @ 208Y/120VAC, 100kA @ 240VAC |
| Frame Type | Q |
|---|---|
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Undervoltage Release, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Phase Connection AB (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, High Interrupting Capacity |
Product FAQs
8 answersWhat panelboards are compatible with the QJA221001 circuit breaker?
This breaker is designed exclusively for use in Square D I-Line panelboards and switchboards. It features an I-Line style plug-in connection and cannot be installed in standard load centers or NQ/NF panels.
What does the "1" at the end of the QJA221001 catalog number signify?
The "1" suffix indicates a factory-configured AB phase connection for the I-Line bus. When installing this 2-pole breaker, it will draw power from the A and B phases of the panelboard.
Can I install the QJA221001 in a 3-phase panelboard?
Yes, you can install this 2-pole breaker in a 3-phase I-Line panelboard. Because of its AB phase configuration, it will simply connect to the A and B phases of the 3-phase bus stack.
What does the "J" in the QJA221001 catalog number indicate?
In the PowerPacT Q-Frame nomenclature, the "J" designates the interrupting rating. It indicates that the breaker has a high interrupting capacity of 100kA at 240VAC.
Does the QJA221001 require additional mounting hardware for installation?
No. As an I-Line style plug-in breaker, it features a specialized mounting bracket that allows for fast, secure installation directly onto the panelboard bus stack without the need for separate mounting hardware or fasteners.
Does the QJA221001 feature a trip indicator?
Yes, this PowerPacT Q-Frame breaker includes a Visi-Trip indicator. When the breaker trips due to an overcurrent or short circuit, the handle snaps to a center position and a high-visibility red indicator appears, making it easy to identify the tripped breaker in a crowded panel.
Can the QJA221001 replace older legacy breakers?
Yes, the QJA221001 serves as a direct drop-in replacement for legacy Square D Q22100 breakers in I-Line panelboards.
Is the QJA221001 HACR rated?
Yes, this breaker is HACR rated, meaning it is approved for use with heating, air conditioning, and refrigeration equipment that requires group motor installations.
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