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Siemens HGB2B035B Molded Case Circuit Breaker
- 35A
- 2 Pole
- Bolt-On
Siemens
HGB2B035B
Molded Case Circuit Breaker
Brand
Siemens
SKU
HGB2B035B
Quantity
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Siemens HGB2B035B - 35A 2 Pole Molded Case Circuit Breaker
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Description
The HGB2B035B is a 2-pole, 35-amp molded case circuit breaker from the Siemens SENTRON family. Built for demanding commercial and industrial applications, it features a thermal-magnetic trip unit with long-time and instantaneous (LI) protection functions. This bolt-on MCCB installs into Siemens P1, P2, P3, P4, and P5 panelboards. For modern upgrades, it is officially replaced by the 3VA5135-5ED22-0AA0, which requires a specific mounting kit. Rated for 100kA at 240VAC and 35kA at 480Y/277VAC.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HGB2B035B |
| Series | HGB |
| Amperage | 35A |
| Poles | 2 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 600Y/347VAC, 125/250VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 240VAC, 35kA @ 480Y/277VAC, 14kA @ 600Y/347VAC, 14kA @ 125/250VDC |
| Frame Type | HGB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3, P4, P5 Panelboards |
| Wire Gauge | 8-1/0 AWG (Cu), 8-2/0 AWG (Al) |
| Max Wire | 1/0 AWG |
| Min Wire | 8 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, Handle Tie |
|---|---|
| Accessories | Load Side Lugs |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, NOM, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed, High Interrupting Capacity |
Product FAQs
10 answersWhat panelboards accept the HGB2B035B circuit breaker?
This bolt-on breaker is designed for use in Siemens SENTRON P1, P2, P3, P4, and P5 commercial panelboards. It is not compatible with standard residential plug-on load centers.
What wire sizes are supported by the HGB2B035B terminals?
The factory-installed lugs accept 8 AWG to 1/0 AWG copper wire, or 8 AWG to 2/0 AWG aluminum wire. Ensure proper torque specifications are followed during installation.
Is the HGB2B035B rated for direct current (DC) applications?
Yes, this breaker carries a DC interrupting rating of 14kA at 125/250VDC, making it suitable for specific industrial control or battery system applications alongside its standard AC ratings.
What is the interrupting capacity of the HGB2B035B on a 480V system?
As part of the high-interrupting HGB frame tier, this breaker provides a 35kA interrupting capacity at 480Y/277VAC. This makes it suitable for commercial facilities with elevated available fault currents.
Can I adjust the thermal or magnetic trip settings on the HGB2B035B?
No, this breaker features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous (LI) protection parameters are factory set and cannot be modified in the field.
How does the HGB2B035B mount into a panelboard?
This is a bolt-on circuit breaker. It secures directly to the panelboard bus using bolted connections, providing a highly secure and vibration-resistant installation compared to plug-on breakers.
What does the LI designation mean on the HGB2B035B trip unit?
The LI designation indicates that the thermal-magnetic trip unit provides Long-Time (L) and Instantaneous (I) protection. The long-time function protects against sustained overloads, while the instantaneous function clears short circuits immediately.
Is this 2-pole breaker suitable for single-phase applications?
Yes, this 2-pole breaker is designed for single-phase, 2-wire or 3-wire circuits, providing simultaneous disconnect and overcurrent protection for both ungrounded conductors.
What Siemens breaker family and frame type is the HGB2B035B?
This breaker is part of the Siemens SENTRON family. It utilizes the HGB frame, which is the high-interrupting tier within the broader GB/GG frame group.
Can the HGB2B035B be used on 600V systems?
Yes, it is rated for use on 600Y/347VAC systems, where it provides an interrupting capacity of 14kA. This allows it to be used in commercial and industrial facilities that utilize 600V distribution.
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