Description
The Square D FH26040AB is a 2-pole molded case circuit breaker designed for reliable protection of electrical circuits operating up to 600VAC. With a current rating of 40A and an interrupting capacity of 25kA at 480V, it provides dependable overload and short-circuit protection. This breaker uses a thermal magnetic trip mechanism and features an I-Line plug-in connection for fast, secure installation in industrial and commercial power systems.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Square D |
| Category |
Circuit Protection |
| Part Number |
FH26040AB |
| Subcategory |
Molded Case Circuit Breakers |
| Series |
Powerpact I-Line |
| Frame Type |
F-Frame |
| Amperage Rating |
40A |
| Voltage Rating |
600VAC |
| Interrupting Rating |
25kA @ 480V |
| Poles |
2 |
| Phase |
1 |
| Trip Unit Type |
Thermal Magnetic (LI – Long-Time and Instantaneous) |
| Connection Type |
I-Line Style Plug-In |
| Terminal Type |
Lugs (Load Side) |
| Magnetic Hold Current |
400A |
| Magnetic Tripping Current |
850A |
| Wire Size |
14 to 1/0 AWG AL/CU |
| Temperature Range |
-13°F to 158°F (-25°C to 70°C) |
| Certifications |
UL, CSA, NOM, IEC, CCC, CE |
| Mounting Type |
I-Line Plug-In |
| Dimensions (HxWxD) |
6.4 x 3 x 4.13 in (162.6 x 76.2 x 104.9 mm) |
| Manufacturer |
Schneider Electric |
| Weight |
6 lb (2.72 kg) |
Information About FH26040AB
The FH26040AB is part of the Square D Powerpact I-Line Series, a trusted range of molded case circuit breakers engineered by Schneider Electric for high-performance electrical distribution. Built on the durable F-frame platform, it combines long-time and instantaneous trip functions to ensure protection against both sustained overloads and sudden faults. Its I-Line plug-in design simplifies installation and enhances contact reliability in switchboards and busway systems. Certified to UL, CSA, NOM, IEC, and CE standards, the FH26040AB is suitable for a wide range of industrial, commercial, and HVAC (HACR-rated) applications.
Key Features:
- 40A Current Rating: Supports medium-load protection in 600VAC power distribution systems.
- High Interrupting Capacity: Rated at 25kA @ 480V for dependable fault interruption.
- Thermal Magnetic Trip Unit: Provides both overload (thermal) and instantaneous (magnetic) protection.
- I-Line Plug-In Design: Enables secure, tool-free installation and quick replacement.
- Compact F-Frame Construction: Offers strength and space efficiency for dense panel configurations.
- Wide Temperature Range: Operates reliably from -13°F to 158°F (-25°C to 70°C).
- Certified Safety Compliance: UL, CSA, NOM, IEC, and CE approvals ensure global compatibility.
- Durable and Reliable: Engineered for long service life in demanding industrial environments.
The FH26040AB delivers the reliability and precision required for industrial and commercial circuit protection systems.
