Description
The Square D FH26040AC is a 2-pole thermal magnetic molded case circuit breaker designed for reliable circuit protection in industrial and commercial electrical systems. This breaker operates at 40 amps with a voltage rating of 600VAC and 250VDC, providing a 25kA interrupting capacity at 480V. Its I-Line style plug-in connection ensures quick installation and secure integration into power distribution systems.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Square D |
| Category |
Circuit Breakers |
| Part Number |
FH26040AC |
| Subcategory |
Molded Case Circuit Breakers |
| Series |
FH / I-Line |
| Amperage |
40 Amps |
| Voltage Rating |
600VAC / 250VDC |
| Poles |
2 |
| Phase |
Single Phase |
| Interrupting Rating |
25kAIC @ 480V |
| Frame Type |
F Frame |
| Trip Unit |
Thermal Magnetic |
| Functions |
Long Time and Instantaneous Trip |
| Connection Type |
I-Line Style Plug-In |
| Terminal Connection |
Line: I-Line / Load: Lug |
| Wire Size |
14 to 1/0 AWG AL/CU |
| Certifications |
UL, CSA, NOM, IEC, CCC, CE |
| Temperature Rating |
40°C |
| Dimensions (HxWxD) |
6.4 x 3 x 4.13 in (162.6 x 76.2 x 104.9 mm) |
| Country of Origin |
Mexico |
| Weight |
6 lbs (2.72 kg) |
Information About FH26040AC
The FH26040AC is part of Square D’s FH I-Line series, engineered for efficient power distribution and dependable circuit protection. Built with a thermal-magnetic trip unit, it combines long-time overload and instantaneous short-circuit protection in a compact molded case design. The I-Line plug-in connection system simplifies mounting and reduces downtime in industrial applications. Compatible with I-Line panels and systems, this breaker is UL, CSA, and IEC certified for high-performance safety compliance across global standards.
Key Features:
- Current Rating: 40 Amps – Provides stable protection for medium-capacity circuits.
- Voltage Rating: 600VAC / 250VDC – Suitable for a wide range of power systems.
- Interrupting Capacity: 25kA @ 480V – Ensures reliable fault interruption under high fault conditions.
- Connection Type: I-Line Style Plug-In – Enables quick installation and secure electrical contact.
- Trip Unit Type: Thermal Magnetic (LI) – Offers long-time overload and instantaneous short-circuit protection.
- Certifications: UL, CSA, NOM, IEC, CCC, CE – Meets major international safety standards.
- Compact Molded Case Design: Space-saving format ideal for dense panel assemblies.
- Operating Temperature: 40°C Rated – Maintains consistent performance under industrial conditions.
The FH26040AC delivers the reliability and precision required for demanding power distribution and protection systems.
