Siemens - HGB3B020B 20A 3-Pole 600V Bolt-On Molded Case Circuit Breaker
Siemens - HGB3B020B 20A 3-Pole 600V Bolt-On Molded Case Circuit Breaker
Product images are representative only. Actual product may vary.
The Siemens HGB3B020B is a 3-pole, 20-amp thermal magnetic molded case circuit breaker (MCCB) rated for 600VAC with bolt-on mounting. This HGB-frame breaker delivers reliable overload and short-circuit protection for commercial and industrial three-phase branch circuits at 600V. Its bolt-on design ensures secure, vibration-resistant installation in compatible Siemens panelboards and switchboards.
Specifications
| Attribute | Value |
|---|---|
| Part Number | HGB3B020B |
| Manufacturer | Siemens |
| Amperage Rating | 20A |
| Voltage Rating | 600VAC |
| Number of Poles | 3 |
| Trip Type | Thermal Magnetic |
| Mount Type | Bolt-On |
| Interrupting Rating | 65kA @ 240V / 25kA @ 600V |
| Standard | UL 489 Listed |
| Frame Series | HGB |
Key Features
- Bolt-on mounting for secure installation in Siemens HGB-frame compatible panelboards
- Thermal magnetic trip for time-delay overload and instantaneous short-circuit protection
- 20-amp, 600V rating for light commercial and industrial three-phase branch circuits
- 3-pole for complete three-phase 600V circuit protection
- UL 489 Listed, NEC compliant
- Compact HGB frame for space-efficient installations
Common Applications
- 20A three-phase branch circuit protection in 600V commercial and industrial panels
- Control panel and small equipment branch circuit protection at 600V
- Light industrial branch circuits and instrumentation feeders
- Manufacturing facility small branch circuit distribution
- Replacement breaker in Siemens HGB-frame compatible panelboards
Frequently Asked Questions
What is the Siemens HGB3B020B?
The Siemens HGB3B020B is a 20-amp, 3-pole, 600V thermal magnetic bolt-on MCCB used for branch circuit protection in three-phase commercial and industrial 600V electrical distribution systems.
What does the B suffix mean in HGB3B020B?
In Siemens HGB-series part numbers, the trailing B typically indicates a specific factory-configured terminal or mounting option. Consult Siemens product documentation for the full suffix breakdown for this model.
Is the HGB3B020B in stock?
Yes. Alpha Brokers & Controls stocks the Siemens HGB3B020B. Contact us for current availability and fast shipping.