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Siemens NGG2B070L Molded Case Circuit Breaker

  • 70A
  • 2 Pole
  • Unit Mount
Siemens NGG2B070L
Molded Case Circuit Breaker
Brand Siemens
SKU NGG2B070L
Select Item Condition
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  • 70A
  • 2 Pole
  • Unit Mount

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Siemens NGG2B070L 2 Pole Circuit Breaker

Siemens NGG2B070L - 70A 2 Pole Molded Case Circuit Breaker

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$452.40 In Stock

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Description

Part of the Siemens SENTRON family, the NGG2B070L provides robust thermal-magnetic protection for commercial applications. This 2-pole, 70A molded case circuit breaker is rated for 25 kAIC at 480VAC, ensuring reliable performance. It features a versatile unit mount design that secures easily to DIN rails or standard control panels. Equipped with factory-installed lugs, this breaker is reverse feed capable and HACR rated. This legacy NGG frame model is replaced by the 3VA5170-4ED21-0AA0.

Specifications

Key specifications
Brand Siemens
Part Number NGG2B070L
Series NGG
Amperage 70A
Poles 2
Mounting Style Unit Mount
Voltage 120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 125/250VDC
Phase 1
AIC Rating 100kA @ 120VAC, 65kA @ 240VAC, 25kA @ 480Y/277VAC, 25kA @ 480VAC, 14kA @ 600Y/347VAC, 14kA @ 125/250VDC
Fit and installation
Frame Type NGG
Terminal Type Lugs
For Use With Siemens Enclosures, Control Panels, Switchboards, DIN Rail
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
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed Thermal, Fixed Magnetic
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch
Accessories Line and Load Lugs Included (TC1GG20)
Standards CSA C22.2 No. 5, IEC 60947-2, UL 489
Approval CE, CSA, HACR, NOM, UL
Temp Rating 40C

Product FAQs

5 answers
What wire sizes are compatible with the lugs on the NGG2B070L?

The factory-installed lugs accept 8 AWG to 1/0 AWG copper wire, or 8 AWG to 2/0 AWG aluminum wire.

How is the NGG2B070L breaker mounted in a panel or enclosure?

This is a unit-mount breaker that can be secured using standard mounting screws or snapped onto a standard DIN rail. It is commonly used in control panels, switchboards, and standalone Siemens enclosures.

Are the trip settings on this breaker adjustable?

No, the NGG2B070L features a thermal-magnetic trip unit with fixed long-time and fixed instantaneous trip functions.

Is the NGG2B070L rated for direct current (DC) systems?

Yes, this breaker is rated for DC applications, providing an interrupting capacity of 14kA at 125/250VDC.

What frame class does this breaker belong to?

It is part of the Siemens SENTRON series and falls under the NGG frame designation, which is part of the broader GB/GG frame group.

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