Siemens HEG2B020 Molded Case Circuit Breaker
- 20A
- 2 Pole
- Unit Mount
Quantity
Siemens HEG2B020 - 20A 2 Pole Molded Case Circuit Breaker
New
Quantity
Description
The Siemens HEG2B020 molded case circuit breaker protects circuits against overloads and short circuits. This 20A, 2-pole, 1-phase breaker is rated for 240VAC, 480VAC and 600Y/347VAC, with 65kAIC interrupting capacity at 480V. The VL family, HEG series breaker uses an EG frame, unit mounting and feed-thru terminal connections. Thermal magnetic tripping has fixed thermal and magnetic settings with long-time and instantaneous trip functions.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HEG2B020 |
| Series | HEG |
| Amperage | 20A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 600Y/347VAC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC |
| Frame Type | EG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens VL Series Panelboards and Switchboards |
| Max Wire | 1/0 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed Thermal, Fixed Magnetic |
| Standards | NEMA AB 1, UL 489 |
|---|---|
| Approval | UL |
| Temp Rating | 40C |
| Construction Features | High Interrupting Capacity |
Product FAQs
6 answersWhen should I choose the Siemens HEG2B020 for a 20A circuit?
Choose it when the circuit requires 20A overcurrent protection. Check conductor ampacity and load requirements against that rating when selecting the breaker.
How do I select the correct system voltage for this breaker?
Match the circuit voltage and system configuration to its 240VAC, 480VAC or 600Y/347VAC rating. The 600Y/347VAC rating applies to a wye system, so system configuration matters as well as voltage.
When is its 2-pole, single-phase configuration appropriate?
Choose this configuration when a single-phase circuit requires two protected poles. Check the circuit's pole requirements along with its current and voltage requirements.
How does the thermal-magnetic trip protect the circuit?
The thermal element provides long-time protection against sustained overloads. The magnetic element provides instantaneous operation for high-current faults, giving the breaker separate responses to overloads and short circuits.
Can I adjust the thermal or magnetic trip settings?
Both the thermal and magnetic trip settings are fixed. Select this breaker when a fixed trip response meets the circuit's protection requirements rather than planning on field adjustment.
What does the 65kAIC rating at 480V mean for selection?
The 65kAIC interrupting rating applies at 480V. For selection, compare this rating with the available fault current at the installation point, which must not exceed the breaker's interrupting capacity.
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