Description
The Square D QDA221004 circuit breaker is a PowerPacT Q-Frame device designed to provide dependable overcurrent protection in 240 VAC distribution systems. It features a thermal-magnetic trip unit that supports both long-time and instantaneous protection for reliable performance. The QDA221004 is suited for applications requiring I-Line line-side connection and secure load-side lug termination.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Square D |
| Category |
Circuit Breakers |
| Part Number |
QDA221004 |
| Subcategory |
Molded Case Circuit Breakers |
| Series |
PowerPacT Q |
| Frame Type |
Q-Frame |
| Amperage Rating |
100 A |
| Poles |
2 |
| Voltage Rating |
240 VAC |
| Interrupting Rating |
25 kA at 120/208 VAC & 240 VAC |
| Trip Unit Type |
Thermal-Magnetic |
| Continuous Current Rating |
80% |
| Mounting Type |
I-Line Bracket |
| Line-Side Connection |
I-Line Plug-On |
| Load-Side Connection |
Mechanical Lugs |
| Wire Range |
AWG 4 – 300 kcmil |
| Tightening Torque |
247.8 lbf·in (28 N·m) |
| Dimensions (H x W x D) |
6.47 in × 3 in × 3.93 in |
| Phase Connection |
BC |
| Trip Indicator |
Yes |
| Operating Temperature |
40–70°C (104–158°F) |
| Certifications/Approvals |
UL, CSA, NOM |
| Weight |
4.65 lb (2.11 kg) |
Information About QDA221004
The QDA221004 is a 2-pole molded-case circuit breaker from the PowerPacT Q series, engineered for commercial and industrial distribution equipment. It incorporates a rugged thermal-magnetic trip unit, supporting 80% continuous current operation for stable performance in panelboards. The unit is compatible with I-Line panelboard systems using an I-Line bracket for line-side mounting and mechanical lugs on the load side. It meets UL, CSA, and NOM requirements, making it suitable for regulated installations.
Key Features:
- Thermal-Magnetic Trip Unit: Provides long-time and instantaneous overcurrent protection.
- I-Line Line-Side Connection: Enables fast, secure plug-on installation into compatible panelboards.
- 100 A Current Rating: Supports medium-capacity distribution circuits in commercial systems.
- 25 kA Interrupt Rating: Ensures high fault-clearing capability at 120/208 VAC and 240 VAC.
- 80% Continuous Current Rating: Maintains reliable operation under sustained load conditions.
- Durable Construction: Designed for up to 6,000 mechanical operating cycles.
- Trip Indicator: Local visual signal for simplified status identification.
- Wide Temperature Range: Operates effectively from 40°C to 70°C.
The QDA221004 delivers the reliability and precision required for dependable electrical distribution protection.
