Siemens BG320 Molded Case Circuit Breaker
- 20A
- 3 Pole
- Bolt-On
Siemens
BG320
Molded Case Circuit Breaker
Brand
Siemens
SKU
BG320
Quantity
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Siemens BG320 - 20A 3 Pole Molded Case Circuit Breaker
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20A 3 Pole Molded Case Circuit Breaker
20A 3 Pole Molded Case Circuit Breaker
20A 3 Pole Molded Case Circuit Breaker
Description
Built for three-phase commercial environments, this 20A molded case circuit breaker provides dependable thermal-magnetic protection. The rugged construction ensures consistent performance across demanding industrial power distribution networks. Designed for seamless integration, the breaker bolts firmly into compatible Siemens panelboards to establish a secure electrical connection.Specifications
| Brand | Siemens |
|---|---|
| Series | BG |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 120/240VAC |
| Phase | 3 |
| AIC Rating | 10kA @ 120/240VAC |
| Frame Type | B |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Panelboards |
| Wire Gauge | 14-6 AWG (Cu/Al) |
| Max Wire | 6 AWG |
| Min Wire | 14 AWG |
| Trip Technology | Thermal Magnetic |
|---|---|
| Trip Function Code | LI |
| Trip Function | Long-Time, Instantaneous |
| Trip Adjustability | Fixed |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, HACR, UL 489 |
| Approval | CSA, UL |
| Temp Rating | 40C |
| Construction Features | Switching Neutral, HACR Rated, Common Trip |
Product FAQs
7 answersWhich panelboards are compatible with the Siemens BG320 circuit breaker?
The BG320 is designed specifically for bolt-on installation in compatible Siemens panelboards. It is not designed for load centers that require plug-on breakers.
What are the wire gauge requirements for the BG320?
The factory-installed lugs accept both copper and aluminum conductors ranging from 14 AWG to 6 AWG. Ensure proper torque specifications are followed during installation.
Can the trip settings on the Siemens BG320 be adjusted?
No, this breaker features a fixed thermal-magnetic trip unit. It provides standard long-time and instantaneous (LI) protection without adjustable dials.
What frame type does the BG320 belong to?
The BG320 is part of the Siemens B-frame family of molded case circuit breakers.
Does the BG320 provide ground fault or arc fault protection?
No, the BG320 is a standard thermal-magnetic breaker providing overload and short-circuit protection. It does not include GFCI or AFCI capabilities.
How does the switching neutral feature work on the BG320?
The BG320 utilizes one of its poles to disconnect the neutral conductor simultaneously with the ungrounded conductors when the breaker trips or is opened. The neutral pole does not connect to and is not energized by the panelboard bus bar.
Does the BG320 feature a common trip mechanism?
Yes, it includes an internal common trip mechanism. If an overcurrent or short circuit occurs on any energized pole, all poles will trip simultaneously to disconnect the circuit.
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