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Siemens HGB2B070B Molded Case Circuit Breaker

  • 70A
  • 2 Pole
  • Bolt-On
Siemens HGB2B070B
Molded Case Circuit Breaker
Brand Siemens
SKU HGB2B070B
Select Item Condition
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  • 70A
  • 2 Pole
  • Bolt-On

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Siemens HGB2B070B - 70A 2 Pole Molded Case Circuit Breaker

Siemens HGB2B070B - 70A 2 Pole Molded Case Circuit Breaker

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$245.42 In Stock

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Description

Built for heavy-duty commercial environments, this 70A molded case circuit breaker utilizes a fixed thermal-magnetic trip mechanism. It bolts into Siemens P1, P2, and P3 panelboards to provide dependable branch protection. With a 100kAIC rating at 240VAC and reverse feed capabilities, the HGB frame offers excellent installation flexibility. This legacy unit is officially replaced by the 3VA4170-5ED24-0AA0 via an xGB/3VA strap kit.

Specifications

Key specifications
Brand Siemens
Part Number HGB2B070B
Series HGB
Amperage 70A
Poles 2
Mounting Style Bolt-On
Voltage 240VAC, 480Y/277VAC, 600Y/347VAC, 125/250VDC
Phase 1
AIC Rating 100kA @ 240VAC, 35kA @ 480Y/277VAC, 14kA @ 600Y/347VAC, 14kA @ 125/250VDC
Fit and installation
Terminal Type Lugs
For Use With Siemens P1, P2, P3 Panelboards
Wire Gauge 8-1/0 AWG (Cu), 8-2/0 AWG (Al)
Max Wire 1/0 AWG
Min Wire 8 AWG
Protection and operation
Trip Technology Thermal Magnetic
Trip Function Code LI
Trip Function Long-Time, Instantaneous
Trip Adjustability Fixed
Standards and features
Available Options Shunt Trip, Auxiliary Switch, Alarm Switch
Accessories Load Side Lugs
Standards CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489
Approval CSA, IEC, NOM, UL
Temp Rating 40C
Construction Features HACR Rated, Reverse Feed, High Interrupting Capacity, Non-Interchangeable Trip, Trip-Free Mechanism

Product FAQs

7 answers
Which Siemens panelboards are compatible with the HGB2B070B breaker?

This bolt-on breaker is designed for use in Siemens P1, P2, and P3 commercial panelboards.

Can I install this bolt-on breaker in a standard residential load center?

No, bolt-on breakers like the HGB2B070B are built for commercial and industrial panelboards. They will not fit in standard residential plug-on load centers.

Does the HGB2B070B come with lugs, and what wire sizes do they accept?

Yes, it includes factory-installed lugs that accommodate 8 to 1/0 AWG copper conductors or 8 to 2/0 AWG aluminum conductors.

Can the HGB2B070B be used in direct current (DC) systems?

Yes, this breaker is rated for DC applications. It provides a 14kA interrupting capacity at 125/250VDC.

Is the trip unit on the HGB2B070B adjustable?

No, it features a fixed thermal-magnetic trip unit. It provides standard long-time and instantaneous (LI) protection functions without adjustable dials.

What frame type does the HGB2B070B belong to?

It is part of the Siemens Sentron family and falls under the GB/GG frame group.

Does this breaker offer ground fault or arc fault protection?

No, the HGB2B070B is a standard thermal-magnetic breaker. It provides overload and short-circuit protection but does not include GFCI or AFCI circuitry.

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Reviews

5.0
Rated 5.0 out of 5 stars
Based on 2 reviews
Rating
Ratings
2 reviews
  • CS
    Cody S.
    Verified Buyer
    Reviewing
    Siemens HGB3B020B - 20A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    12/1/25
    I love SuperBreakers

    Excellent shipping time and everything works perfectly

  • JM
    Jessica M.
    Flag of United States
    Reviewing
    Siemens HGB3B020B - 20A 3 Pole Molded Case Circuit Breaker
    I recommend this product
    Rated 5 out of 5 stars
    8/16/23
    works as intended

    works as intended