Description
The Square D FHB16020A is a single-pole molded case circuit breaker engineered for dependable overcurrent and short-circuit protection in commercial and industrial electrical systems. Rated at 20 amps and 277 VAC, it combines precise thermal-magnetic protection with a compact F-frame design. The FHB16020A supports I-Line style plug-in connections, ensuring quick installation and secure integration into compatible panelboards.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Square D |
| Category |
Circuit Breakers |
| Part Number |
FHB16020A |
| Subcategory |
Molded Case Circuit Breakers |
| Series |
FHB |
| Frame Type |
F-Frame |
| Poles |
1 |
| Phase |
1 |
| Amperage Rating |
20 A |
| Voltage Rating |
277 VAC |
| Interrupting Rating |
25 kA @ 240 V |
| Trip Unit Type |
Thermal Magnetic |
| Functions |
Long-Time and Instantaneous |
| Connection Type |
I-Line Style Plug-In |
| Mounting Type |
I-Line |
| Terminal Connection |
Bolted |
| Magnetic Hold Current |
275 A |
| Magnetic Tripping Current |
600 A |
| Frequency |
50/60 Hz |
| Operating Temperature |
40 °C |
| Certifications |
UL Listed, CSA Certified, RoHS, REACh |
| Country of Origin |
Mexico |
| Dimensions (HxWxD) |
6.4 x 1.5 x 4.13 in |
| Weight |
0.45 lb (0.2 kg) |
Information About
FHB16020A
The FHB16020A is part of the Square D™ FHB series, designed for use in I-Line panelboards and distribution systems. It incorporates a thermal-magnetic trip mechanism that provides both long-time and instantaneous trip protection to safeguard electrical circuits against overload and fault conditions. The breaker’s rugged molded case and bolted terminal connections ensure mechanical durability and long-term performance under continuous operation. Fully UL and CSA certified, the FHB16020A meets stringent safety and reliability standards for industrial and commercial installations.
Key Features:
- Thermal-Magnetic Protection: Dual-function trip mechanism safeguards circuits from overloads and short circuits.
- 20 Amp Current Rating: Provides stable performance for low to medium power applications.
- High Interrupting Capacity: Rated 25kAIC at 240V for secure fault current interruption.
- I-Line Style Plug-In Mounting: Enables easy installation and maintenance within compatible Square D panels.
- Compact F-Frame Design: Saves space while maintaining full circuit protection capability.
- Bolted Terminal Connection: Ensures firm electrical contact and reduces connection resistance.
UL and CSA Certified: Complies with international safety and performance standards.
The FHB16020A delivers the reliability and precision required for high-performance electrical distribution and protection in demanding environments.
