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Siemens HEB2B030B Molded Case Circuit Breaker
- 30A
- 2 Pole
- Bolt-On
Siemens
HEB2B030B
Molded Case Circuit Breaker
Brand
Siemens
SKU
HEB2B030B
Quantity
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Siemens HEB2B030B - 30A 2 Pole Molded Case Circuit Breaker
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Description
Belonging to the Siemens Sentron line, this 30A unit offers robust overcurrent defense. The HEB2B030B features a thermal-magnetic trip mechanism tailored for commercial facilities. Engineered for bolt-on mounting, it integrates seamlessly into P3, P4, and P5 panelboards. This specific breaker is replaced by the newer HEG2B030B model. With a 100kAIC rating at 240VAC and 65kAIC at 480VAC, it provides exceptional fault clearing. It is HACR and HID rated for specialized circuits.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HEB2B030B |
| Series | HEB |
| Amperage | 30A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480VAC, 600Y/347VAC, 125/250VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC, 65kA @ 480VAC, 25kA @ 600Y/347VAC, 42kA @ 125/250VDC |
| Frame Type | HEB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P3, P4, P5 Panelboards |
| Wire Gauge | 14-1/0 AWG (Cu), 12-1/0 AWG (Al) |
| 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 |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, HID Rated |
Product FAQs
8 answersWhich Siemens panelboards are compatible with the HEB2B030B circuit breaker?
This bolt-on breaker is designed specifically for commercial and industrial power distribution in Siemens P3, P4, and P5 panelboards. It bolts directly to the panelboard bus for a secure connection.
What wire sizes are accepted by the load lugs on the HEB2B030B?
The factory-installed load lugs accommodate 14 to 1/0 AWG copper (Cu) conductors or 12 to 1/0 AWG aluminum (Al) conductors. Always torque the lug screws to the manufacturer specifications printed on the breaker label.
Can the Siemens HEB2B030B be used in direct current (DC) applications?
Yes. In addition to standard AC systems, this thermal-magnetic breaker is fully rated for DC applications, providing up to 42kAIC of interrupting capacity at 125/250VDC.
What frame platform does the HEB2B030B utilize?
The HEB2B030B is part of the Siemens NEB/HEB frame group. These breakers are built on the 125A maximum EG frame platform, offering a compact footprint for high-capacity panelboards.
How does the HEB2B030B mount to the panelboard?
Unlike plug-in breakers, the HEB2B030B utilizes a bolt-on connection. It physically bolts to the busbars of compatible Siemens panelboards, ensuring a secure, vibration-resistant connection suitable for demanding industrial environments.
How does the thermal-magnetic trip unit function on this breaker?
This breaker utilizes a fixed thermal-magnetic trip unit with LI functions. The thermal element provides Long-Time (L) protection against sustained overloads, while the magnetic element delivers Instantaneous (I) protection to quickly clear short circuits.
Is the HEB2B030B compatible with remote tripping accessories?
Yes, this breaker accepts standard Siemens EG frame accessories. It can be equipped with shunt trips, such as the STRER240 for 110 to 240V applications, allowing for remote tripping and emergency cut-off capabilities.
What safety procedures are required when installing a bolt-on breaker like the HEB2B030B?
Always de-energize the panelboard before installing or removing bolt-on breakers. Verify that the power is completely disconnected using a properly rated voltage tester, and ensure all work complies with local electrical codes and NFPA 70E safety standards.
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Customers rate this product 4.0 out of 5 based on 1 review.
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- JJohnReviewingSiemens HEB3B015B - 15A 3 Pole Molded Case Circuit BreakerI recommend this productRated 4 out of 5 stars9/19/234 Stars
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