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Siemens NGG3B020L Molded Case Circuit Breaker
- 20A
- 3 Pole
- Unit Mount
Siemens
NGG3B020L
Molded Case Circuit Breaker
Brand
Siemens
SKU
NGG3B020L
Quantity
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Siemens NGG3B020L - 20A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
Quantity
Siemens NGG3B020L - 20A 3 Pole Molded Case Circuit Breaker
New
Quantity
| Brand | Siemens |
|---|---|
| Series | NGG |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 120VAC, 240VAC, 480VAC, 600Y/347VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 120VAC, 65kA @ 240VAC, 25kA @ 480VAC, 14kA @ 600Y/347VAC, 14kA @ 125/250VDC |
| Frame Type | NGG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Enclosures, Control Panels, Switchboards, DIN Rail |
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Line and Load Lugs Included (TC1GG20) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, HACR, HID, NOM, SWD, UL |
| Temp Rating | 40C |
Quantity
Siemens NGG3B020L - 20A 3 Pole Molded Case Circuit Breaker
Re-Certified
Quantity
| Brand | Siemens |
|---|---|
| Series | NGG |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 120VAC, 240VAC, 480VAC, 600Y/347VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 120VAC, 65kA @ 240VAC, 25kA @ 480VAC, 14kA @ 600Y/347VAC, 14kA @ 125/250VDC |
| Frame Type | NGG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Enclosures, Control Panels, Switchboards, DIN Rail |
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Line and Load Lugs Included (TC1GG20) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, HACR, HID, NOM, SWD, UL |
| Temp Rating | 40C |
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Description
Built for commercial and industrial applications, the Siemens NGG3B020L is a 3-pole, 20A MCCB. It utilizes fixed thermal-magnetic trip technology to provide essential long-time and instantaneous (LI) protection. This unit-mount breaker fits Siemens enclosures, control panels, and switchboards. It includes line and load lugs and is fully DIN rail mountable for flexible installation. Delivering 25kAIC at 480V, this HACR-rated unit is reverse feed capable.Specifications
| Brand | Siemens |
|---|---|
| Series | NGG |
| Amperage | 20A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 120VAC, 240VAC, 480VAC, 600Y/347VAC, 125/250VDC |
| Phase | 3 |
| AIC Rating | 100kA @ 120VAC, 65kA @ 240VAC, 25kA @ 480VAC, 14kA @ 600Y/347VAC, 14kA @ 125/250VDC |
| Frame Type | NGG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens Enclosures, Control Panels, Switchboards, DIN Rail |
| 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 Thermal, Fixed Magnetic |
| Available Options | Shunt Trip, Auxiliary Switch, Alarm Switch, Undervoltage Release |
|---|---|
| Accessories | Line and Load Lugs Included (TC1GG20) |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, HACR, HID, NOM, SWD, UL |
| Temp Rating | 40C |
Product FAQs
7 answersDoes the NGG3B020L require a separate adapter for DIN rail mounting?
No, the Siemens NGG frame features an integral DIN rail mount design. It can be mounted directly to a standard DIN rail or base-mounted with screws without requiring additional adapter plates.
What type of wire material is compatible with the standard lugs on this breaker?
The factory-installed lugs on the NGG3B020L accept both copper (Cu) and aluminum (Al) conductors, accommodating wire sizes from 14 AWG to 10 AWG.
What is the difference between the Siemens NGG3B020L and the NGB3B020L?
The NGG3B020L is a unit-mount circuit breaker designed for independent base or DIN rail mounting in control panels and enclosures. The NGB3B020L shares the same internal components but is specifically configured for panelboard mounting.
Can this 20A breaker be used in direct current (DC) applications?
Yes, the NGG3B020L is rated for use on DC systems up to 125/250VDC, providing an interrupting capacity of 14kAIC at those voltages.
Are the trip settings on the NGG3B020L adjustable?
No, this breaker features a fixed thermal and fixed magnetic trip unit. It provides standard long-time and instantaneous (LI) protection that cannot be field-adjusted.
What types of equipment is the NGG3B020L typically installed in?
With its compact unit-mount design, this breaker is commonly used in OEM control panels, industrial enclosures, and switchboards where independent mounting is required.
Does this breaker have a trip-free mechanism?
Yes, the NGG frame utilizes an overcenter toggle mechanism that is trip-free. This ensures the breaker contacts will open during a fault even if the operating handle is physically held in the ON position.
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