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Siemens HGG3B070L Molded Case Circuit Breaker
- 70A
- 3 Pole
- Unit Mount
Siemens
HGG3B070L
Molded Case Circuit Breaker
Brand
Siemens
SKU
HGG3B070L
Quantity
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Siemens HGG3B070L - 70A 3 Pole Molded Case Circuit Breaker
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Description
Built for robust industrial applications, the Siemens HGG3B070L is a 70A, 3-pole molded case circuit breaker from the Sentron GB/GG frame group. It delivers reliable overcurrent protection via a fixed thermal-magnetic trip unit. The breaker mounts into Siemens P1, P2, and P3 panelboards using a feed-through design compatible with DIN rail. Delivering a 35kA interrupting capacity at 480VAC, it is replaced by the 3VA5170-5EC31-0AA0, which requires a retrofit kit for existing enclosures.Specifications
| Brand | Siemens |
|---|---|
| Part Number | HGG3B070L |
| Series | HGG |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 208Y/120VAC, 240VAC, 480Y/277VAC, 480VAC, 600Y/347VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 208Y/120VAC, 65kA @ 240VAC, 35kA @ 480Y/277VAC, 35kA @ 480VAC, 14kA @ 600Y/347VAC, 14kA @ 250VDC |
| Frame Type | HGG |
|---|---|
| Terminal Type | Lugs |
| For Use With | Siemens P1, P2, P3 Panelboards, Switchboards, Enclosures |
| Wire Gauge | 8-1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 8 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, Rotary Handle, Padlock Attachment |
|---|---|
| Accessories | Line and Load Lugs Included |
| Standards | CSA C22.2 No. 5, IEC 60947-2, UL 489 |
| Approval | CE, CSA, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, High Interrupting Capacity, Reverse Feed, Trip-Free Mechanism, Non-Interchangeable Trip |
Product FAQs
7 answersWhat panelboards are compatible with the HGG3B070L?
This unit mount breaker is designed for use in Siemens P1, P2, and P3 panelboards, as well as compatible switchboards and enclosures. It installs using a feed-thru connection rather than a plug-in design.
What wire size does the HGG3B070L accept?
The standard lugs on this breaker accept 8 AWG to 1/0 AWG conductors. Ensure proper torque specifications are followed during installation as outlined on the breaker faceplate.
What does the H in the HGG3B070L part number indicate?
The H designates it as a high-interrupting capacity version of the standard Sentron GB/GG frame. It provides a 35kAIC rating at 480VAC, which is higher than standard interrupting models in the same frame size.
What is the modern replacement for the HGG3B070L?
Siemens is transitioning legacy Sentron frames to the newer 3VA series. The functional equivalent in the 3VA line is the 3VA5170-5EC31-0AA0. Upgrading to a 3VA breaker in an existing panelboard will require a specific retrofit mounting kit.
Can the HGG3B070L be reverse fed?
Yes, this thermal-magnetic molded case circuit breaker is suitable for reverse feed applications. It does not have Line and Load markings that would restrict it to forward-feed only.
Does the HGG3B070L provide GFCI or AFCI protection?
No, this is a standard thermal-magnetic circuit breaker providing only Long-Time and Instantaneous (LI) overcurrent and short-circuit protection. It does not include ground-fault or arc-fault protection circuitry.
Can the HGG3B070L be used in DC applications?
Yes, this thermal-magnetic breaker is rated for up to 250VDC with an interrupting capacity of 14kA. When applying it in DC systems, ensure the wiring configuration meets Siemens guidelines for multi-pole DC switching.
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