Description
The Square D QDA221504 is a 2-pole molded case circuit breaker designed for overcurrent protection and switching in 240VAC electrical systems. With a 150A current rating, the Square D QDA221504 provides dependable thermal magnetic protection for commercial and industrial power distribution applications.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Square D |
| Category |
Circuit Breaker |
| Part Number |
QDA221504 |
| Subcategory |
Molded Case |
| Series |
PowerPacT Q |
| Frame Type |
QDA |
| Breaker Type |
Molded Case Circuit Breaker |
| Current Rating |
150 Amps |
| Voltage Rating |
240VAC |
| Poles |
2 |
| Phase |
Single Phase |
| Interrupting Rating |
25kAIC at 240VAC |
| Trip Unit |
Thermal Magnetic |
| Trip Functions |
LI – Long-Time and Instantaneous |
| Mounting Type |
I-Line Bracket |
| Connection Type |
I-Line Style Plug-In |
| Terminal Connection |
Load Side Lug |
| Actuator Type |
Operating Handle |
| Temperature Rating |
40 to 70 °C |
| Standards & Approvals |
UL, CSA, NEMA, NOM, HACR |
| Dimensions (HxWxD) |
6.47 x 3 x 3.93 in |
| Weight |
4.6 lb |
Information About QDA221504
The QDA221504 is part of the Square D PowerPacT Q-Frame series, engineered for distribution-level circuit protection in panelboards and switchboards. It utilizes an I-Line style plug-in connection on the line side and mechanical lugs on the load side to ensure secure installation and reliable electrical continuity. Designed for single-phase 240VAC systems, the breaker incorporates LI (long-time and instantaneous) trip functions to protect against overloads and short-circuit conditions. The unit complies with UL, CSA, NEMA, and NOM standards and is IEC certified for consistent performance in regulated environments.
Key Features:
- PowerPacT Q-Frame Construction: Provides durable molded case design for long-term operational reliability.
- 150 Amp Current Rating: Supports mid-range load requirements in distribution circuits.
- Thermal Magnetic Protection: Delivers accurate response to both overload and short-circuit faults.
- High Interrupting Capacity: Rated at 25kAIC at 240VAC for effective fault current interruption.
- I-Line Style Plug-In Mounting: Enables fast, secure installation and simplified maintenance.
- LI Trip Functions: Combines long-time and instantaneous tripping for balanced circuit protection.
- Integrated Push-to-Trip Button: Allows manual tripping for testing and service verification.
The QDA221504 delivers the reliability and precision required for overcurrent protection and switching in commercial and industrial electrical systems.
