Description
The Square D FHB16020B is a 1-pole molded case circuit breaker designed to provide dependable overcurrent protection in commercial and industrial electrical systems. Rated at 20 amps and up to 347 volts, this breaker features thermal-magnetic protection and I-Line bolt-on mounting for secure installation in power distribution applications.
Technical Specifications
| Condition |
New/Never Used Surplus |
| Brand |
Square D |
| Category |
Molded Case Circuit Breaker |
| Part Number |
FHB16020B |
| Subcategory |
1-Pole |
| Series |
FHB |
| Frame Type |
FH |
| Circuit Breaker Type |
Molded Case |
| Amperage |
20 Amp |
| Voltage Rating |
277 VAC / 347 V |
| Poles |
1 |
| Phase |
1 |
| Mounting Type |
I-Line Bolt-On |
| Connection Type |
I-Line Style Plug-In |
| Protection Type |
Thermal Magnetic |
| Trip Functions |
LI – Long-Time and Instantaneous |
| Interrupting Rating |
25kA @ 240VAC; 25kA @ 277VAC |
| Temperature Rating |
40 °C |
| Dimensions (HxWxD) |
2.20 in x 7.70 in x 12.90 in |
| Weight |
6.0 lb |
Information About FHB16020B
The FHB16020B is part of Square D’s FHB series within the PowerPacT family, engineered for compact, high-performance circuit protection. Built on an FH frame, it is designed for compatibility with Square D I-Line panelboards and switchgear. This breaker supports single-phase systems and incorporates long-time and instantaneous trip functions to protect against overloads and short circuits. Its high interrupting rating makes it suitable for installations with elevated fault current levels.
Key Features:
- 20 Amp Current Rating: Provides precise protection for branch circuits.
- 1-Pole Configuration: Designed for single-phase electrical applications.
- 347V Voltage Rating: Suitable for lighting and commercial distribution systems.
- High Interrupting Capacity: Rated up to 25kA at 277VAC for robust fault protection.
- Thermal-Magnetic Protection: Ensures reliable overload and short-circuit response.
- LI Trip Functions: Long-time and instantaneous tripping enhances circuit safety.
- I-Line Bolt-On Mounting: Provides secure installation and reliable bus connection.
The FHB16020B delivers the reliability and precision required for PowerPacT I-Line branch circuit protection applications.
