Siemens HB3B030 Molded Case Circuit Breaker
- 30A
- 3 Pole
- Bolt-On
Quantity
Siemens HB3B030 - 30A 3 Pole Molded Case Circuit Breaker
New
Quantity
Description
Built for demanding environments, the Siemens HB3B030 offers 30A of thermal-magnetic protection for commercial and industrial facilities. This 3-pole MCCB features a quick-make, quick-break mechanism to ensure reliable operation under heavy loads. It mounts securely into Siemens P1, P2, and P3 panelboards using a standard bolt-on configuration. With a high interrupting rating of 65kA at 240VAC and HACR certification, this BQ-family breaker handles severe short circuits and overloads.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HB3B030 |
| Series | HB |
| Amperage | 30A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC |
| Frame Type | BQ |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| Wire Gauge | 14-6 AWG (Cu), 12-6 AWG (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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Padlock Attachment |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2, HACR Rated, UL 489 |
| Approval | CSA, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Non-Interchangeable Trip, Common Trip, Quick-Make/Quick-Break, Trip-Free Mechanism |
Product FAQs
6 answersWhich panelboards are compatible with the Siemens HB3B030 circuit breaker?
This bolt-on breaker is designed for direct installation in Siemens P1, P2, and P3 commercial panelboards.
What distinguishes the HB3B030 from a standard BQ3B030 breaker?
The HB series carries a high interrupting rating of 65kAIC at 240VAC. A standard BQ series breaker is typically rated at 10kAIC. Both utilize the same BQ frame and bolt-on mounting configuration.
What wire sizes are supported by the factory lugs on the HB3B030?
The included lugs accept copper conductors from 14 to 6 AWG and aluminum conductors from 12 to 6 AWG. Always verify the required torque specifications printed directly on the breaker label before terminating.
Are the trip settings on this molded case circuit breaker adjustable?
No. This unit features fixed thermal and fixed magnetic trip elements, providing standard long-time and instantaneous protection without field adjustability.
What does the LI trip function code indicate on this breaker?
The LI designation means the breaker provides Long-Time overload protection and Instantaneous short circuit protection. This is standard for thermal magnetic breakers in this class.
Can the HB3B030 be installed in a standard residential load center?
No. This is a bolt-on breaker built for commercial panelboards. It lacks the plug-on clips required for standard residential load centers.
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