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Siemens NGB3B070 Molded Case Circuit Breaker
- 70A
- 3 Pole
- Bolt-On
Siemens
NGB3B070
Molded Case Circuit Breaker
Brand
Siemens
SKU
NGB3B070
Quantity
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Siemens NGB3B070 - 70A 3 Pole Molded Case Circuit Breaker
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Description
Engineered for commercial applications, the Siemens NGB3B070 is a 3-pole, 70A Sentron molded case circuit breaker. This model is configured without load lugs, utilizing a nut keeper design. It mounts into Siemens P1, P2, and P3 panelboards. Upgrading to the 3VA5170-4ED34-0AA0 replacement in P1 panels requires a strap kit. Delivering reliable thermal-magnetic protection, it provides a 25kAIC interrupt rating at 480Y/277V and 100kAIC at 240V. The breaker is HACR rated and reverse feed capable.Specifications
| Brand | Siemens |
|---|---|
| Series | NGB |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Bolt-On |
| Voltage | 240VAC, 480Y/277VAC, 600Y/347VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 240VAC, 25kA @ 480Y/277VAC, 14kA @ 600Y/347VAC, 14kA @ 125/250VDC |
| Frame Type | NGB |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards |
| 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, Lug Kit |
|---|---|
| Accessories | Nut Keeper (No Lugs) |
| Standards | CSA C22.2 No. 5, UL 489, NEMA AB 1 |
| Approval | CSA, HACR, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
5 answersWhich Siemens panelboards accept the NGB3B070 circuit breaker?
This bolt-on breaker is compatible with Siemens P1, P2, and P3 panelboards.
Is the NGB3B070 suitable for direct current (DC) applications?
Yes, in addition to its AC ratings, this breaker is rated for 125/250V DC systems with a 14kAIC interrupting capacity.
Can the trip settings on the NGB3B070 be adjusted in the field?
No, this breaker features fixed thermal and fixed magnetic trip settings. It provides standard long-time and instantaneous (LI) protection that cannot be modified.
What frame class does the NGB3B070 belong to?
It is part of the Siemens Sentron series and falls under the GB/GG frame group.
What type of load terminals are included with the NGB3B070?
This breaker is equipped with standard lug terminals for load-side wiring.
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