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Siemens NGG2B110L Molded Case Circuit Breaker
- 110A
- 2 Pole
- Unit Mount
Siemens
NGG2B110L
Molded Case Circuit Breaker
Brand
Siemens
SKU
NGG2B110L
Quantity
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Siemens NGG2B110L - 110A 2 Pole Molded Case Circuit Breaker
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Description
Built to handle demanding electrical distribution needs, the Siemens NGG2B110L is a 110A, 2-pole MCCB from the Sentron family. It delivers reliable long-time and instantaneous (LI) protection for commercial and industrial facilities. The unit mounts into Siemens P1, P2, and P3 panelboards, as well as switchboards and motor control centers. While this specific GB/GG frame breaker is highly capable, it has been officially replaced by the 3VA5111-4EC21-0AA0 for modern upgrades.Specifications
| Brand | Siemens |
|---|---|
| Part Number | NGG2B110L |
| Series | NGG |
| Amperage | 110A |
| Poles | 2 |
| Mounting Style | Unit Mount |
| Voltage | 120VAC, 240VAC, 480VAC, 600Y/347VAC, 125/250VDC |
| Phase | 1 |
| AIC Rating | 100kA @ 120VAC, 65kA @ 240VAC, 25kA @ 480VAC, 14kA @ 600Y/347VAC, 14kA @ 125/250VDC |
| Frame Type | NGG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, Switchboards, Enclosures, Motor Control Centers |
| Wire Gauge | 8-1/0 AWG (Cu), 8-2/0 AWG (Al) |
| Max Wire | 1/0 AWG (Cu), 2/0 AWG (Al) |
| Min Wire | 8 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 | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, HACR, NOM, UL |
| Temp Rating | 40C |
Product FAQs
7 answersWhich Siemens panelboards are compatible with the NGG2B110L circuit breaker?
This breaker is designed for use with Siemens P1, P2, and P3 panelboards. It is also suitable for installation in Siemens switchboards, motor control centers, and individual enclosures.
What wire sizes are supported by the lugs on the NGG2B110L?
The standard lugs accept 8 to 1/0 AWG copper wire or 8 to 2/0 AWG aluminum wire. Ensure proper torque specifications are followed during installation based on the wire material and gauge.
How is the NGG2B110L breaker mounted in an enclosure?
This is a unit mount, feed-thru circuit breaker. It is typically mounted directly to the base of the enclosure or onto a DIN rail, rather than plugging into a busbar.
Is the NGG2B110L suitable for direct current applications?
Yes, this breaker is rated for DC systems. It provides an interrupting capacity of 14kA at 125VDC or 250VDC.
How does the interrupting capacity of this breaker change with system voltage?
The fault current rating decreases as system voltage increases. It provides 100kAIC at 120VAC, 65kAIC at 240VAC, 25kAIC at 480VAC, and 14kAIC at 600Y/347VAC. Always verify the available fault current at your specific installation voltage.
Can the trip settings on the NGG2B110L be adjusted in the field?
No, this breaker features a fixed thermal magnetic trip unit. The long time and instantaneous trip functions are factory set and cannot be modified.
What frame class does the NGG2B110L belong to?
It is part of the Siemens SENTRON family and falls under the GB or GG frame classification, specifically utilizing the NGG frame design.
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