Siemens NGG1B020L Molded Case Circuit Breaker
- 20A
- 1 Pole
- Unit Mount
Siemens
NGG1B020L
Molded Case Circuit Breaker
Brand
Siemens
SKU
NGG1B020L
Quantity
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Siemens NGG1B020L - 20A 1 Pole Molded Case Circuit Breaker
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Description
Part of the SENTRON family, the Siemens NGG1B020L is a 1-pole, 20A molded case circuit breaker designed for industrial applications. It delivers reliable long-time and instantaneous (LI) trip functions. This unit-mount breaker installs into Siemens P1, P2, and P3 panelboards, switchboards, and motor control centers. It features a versatile design that is also DIN rail mountable. Rated 25kAIC at 277V, it includes line and load lugs. It is HACR, HID, and Switching Duty (SWD) rated.Specifications
| Brand | Siemens |
|---|---|
| Part Number | NGG1B020L |
| Series | NGG |
| Amperage | 20A |
| Poles | 1 |
| Mounting Style | Unit Mount |
| Voltage | 120VAC, 277VAC, 125VDC, 347VAC |
| Phase | 1 |
| AIC Rating | 100kA @ 120VAC, 25kA @ 277VAC, 14kA @ 125VDC, 14kA @ 347VAC |
| Frame Type | NGG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, Switchboards, Enclosures, Motor Control Centers |
| Wire Gauge | 14-10 AWG |
| Max Wire | 10 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 |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, HACR, HID, NOM, SWD, UL |
| Temp Rating | 40C |
Product FAQs
5 answersWhich Siemens panelboards are compatible with the NGG1B020L circuit breaker?
The NGG1B020L is designed for integration into Siemens P1, P2, and P3 panelboards. It is also compatible with Siemens switchboards, motor control centers, and standalone enclosures.
Do I need a separate adapter to mount the NGG1B020L on a DIN rail?
No. The Siemens NGG frame features an integral design that allows the breaker to be mounted directly onto a standard DIN rail or base mounted without requiring any additional adapters.
What wire size is accepted by the lugs on the NGG1B020L?
The factory-installed feed-thru lugs on the line and load sides are designed to accept copper or aluminum wire ranging from 14 AWG to 10 AWG.
Can the NGG1B020L be used in direct current (DC) circuits?
Yes. In addition to its AC ratings, this thermal-magnetic breaker is rated for 125VDC applications, delivering a 14kA interrupting capacity for DC control and distribution circuits.
Will the NGG1B020L trip if the handle is physically held in the ON position?
Yes. The breaker utilizes a trip-free overcenter toggle mechanism. In the event of an overload or short circuit, the internal contacts will separate and trip the breaker even if the handle is locked or held closed.
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