Description
The Square D QGA221751 is a 2-pole thermal magnetic molded case circuit breaker designed to provide dependable protection for electrical distribution systems rated at 175 amps and 240 VAC. With a 65kA interrupting capacity, it is ideal for high-performance applications requiring superior fault interruption and overload protection. The breaker features an I-Line style plug-in connection, offering a secure and efficient mounting system for panelboards and switchboards.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Square D |
| Category |
Circuit Breakers |
| Part Number |
QGA221751 |
| Subcategory |
Molded Case Circuit Breakers |
| Series |
PowerPact Q |
| Frame Type |
QGA |
| Number of Poles |
2 |
| Rated Current (In) |
175 A |
| Voltage Rating |
240 VAC |
| Interrupting Rating |
65 kA @ 240 VAC |
| Trip Unit Technology |
Thermal-Magnetic |
| Trip Functions |
Long-Time and Instantaneous (LI) |
| Mounting Type |
I-Line Plug-In |
| Connection Type |
I-Line (line) / Lugs (load) |
| Continuous Current Rating |
80% |
| Frequency |
50/60 Hz |
| Wire Size |
AWG 4 to 300 KCMIL (Cu/Al) |
| Standards Compliance |
UL, CSA, ANCE, IEC, RoHS |
| Applications |
Power distribution, overload and short-circuit protection |
| Dimensions (H x W x D) |
12.31 x 7.44 x 4.25 in (312.7 x 189 x 108 mm) |
| Weight |
4.9 lbs (2.22 kg) |
Information About
QGA221751
The QGA221751 is part of the Square D PowerPact Q-Series, known for its rugged construction, high interrupting ratings, and compact design. It incorporates thermal-magnetic trip technology, combining long-time and instantaneous trip functions to protect circuits against overloads and short circuits. The breaker is equipped with an I-Line plug-in connection on the line side and lugs on the load side, ensuring compatibility with I-Line panelboards and switchboards. Designed for industrial and commercial distribution systems, it meets UL, CSA, ANCE, and IEC standards for safety, performance, and reliability.
Key Features:
- Rated Current: Supports 175A continuous current for mid- to high-capacity distribution systems.
- High Interrupting Capacity: 65kA at 240V AC for reliable short-circuit protection.
- Trip Technology: Thermal-magnetic trip unit providing both overload and instantaneous protection.
- Connection Type: I-Line plug-in connection on the line side with load-side lugs for secure installation.
- Frame Type: Compact Q-Frame construction designed for use with I-Line panels and switchboards.
- Durability: 80% continuous current rating with non-interchangeable trip for long service life.
- Certifications: UL, CSA, ANCE, and IEC compliant for international use.
- Applications: Suitable for power distribution and overcurrent protection in industrial, commercial, and institutional settings.
The QGA221751 delivers the reliability and precision required for safe, efficient, and durable electrical power distribution.
