Siemens BG330 Molded Case Circuit Breaker
- 30A
- 3 Pole
- Bolt-On
Quantity
Siemens BG330 - 30A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Utilizing proven thermal-magnetic trip technology, this 30A molded case circuit breaker safeguards commercial electrical systems against overloads and short circuits. The three-phase design is optimized for continuous reliability in heavy-duty environments. Installation is straightforward thanks to a bolt-on mounting configuration that locks firmly into Siemens panelboards. For future maintenance planning, engineers can reference the BG3B030 as the designated replacement for this model.Specifications
| Brand | Siemens |
|---|---|
| Series | BG |
| Amperage | 30A |
| 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 answersWhat panelboards are compatible with the Siemens BG330 circuit breaker?
The BG330 is a bolt-on breaker designed for commercial applications. It is compatible with Siemens P1, P2, and P3 series panelboards, as well as legacy ITE and Siemens FAS-LATCH lighting panels.
Can the BG330 be installed in a standard residential load center?
No, the BG330 features a bolt-on connection designed exclusively for commercial panelboards. Standard residential load centers typically require plug-on breakers, such as the Siemens QP series.
Is there a newer replacement model for the BG330?
Yes, Siemens has updated their catalog numbers, and the BG3B030 is the direct, modern replacement for the legacy BG330. Both share the same physical dimensions, bolt-on mounting, and 30A, 10kAIC ratings.
Is the Siemens BG330 HACR rated?
Yes, the BG330 carries an HACR rating, meaning it is certified for use with heating, air conditioning, and refrigeration equipment to safely handle their specific motor loads and inrush currents.
Does the BG330 have an SWD (Switching Duty) rating for fluorescent lighting?
No. Under NEC guidelines and UL standards, Switching Duty (SWD) ratings are only applied to 15A and 20A single-pole breakers. As a 30A, 3-pole breaker, the BG330 is not SWD rated.
What does the 10kAIC rating on the BG330 mean for my system?
The 10kAIC (Amps Interrupting Capacity) rating indicates the maximum fault current the breaker can safely interrupt without sustaining damage. Your panel's available fault current must be 10,000 amps or less at 120/240VAC for this breaker to be safely applied, unless it is part of a tested series-rated combination.
Does the BG330 require a specific mounting hardware kit?
No additional mounting kits are required for standard installation. The BG330 is a bolt-on breaker that mounts directly to the bus connections of compatible Siemens and ITE panelboards.
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