Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Free Shipping Over $99
Eaton / Cutler-Hammer GD3070 Molded Case Circuit Breaker
- 70A
- 3 Pole
- Unit Mount
Eaton / Cutler-Hammer
GD3070
Molded Case Circuit Breaker
Brand
Eaton / Cutler-Hammer
SKU
GD3070
Quantity
Shop with Confidence
Add an extra year of protection in your cart.
Eaton / Cutler-Hammer GD3070 - 70A 3 Pole Molded Case Circuit Breaker
New
Quantity
Similar Items
60A 3 Pole Molded Case Circuit Breaker
90A 3 Pole Molded Case Circuit Breaker
50A 3 Pole Molded Case Circuit Breaker
Description
Engineered for commercial and industrial use, this 3-pole, 70A molded case circuit breaker is part of the Eaton Series C family. It features a unit mount design for integration into Eaton panelboards, enclosures, and motor control centers, accepting 10-1/0 AWG wire. With a 22 kAIC rating at 480VAC, it utilizes a fixed thermal-magnetic trip mechanism (LI). This HACR-rated breaker supports reverse feed applications.Specifications
| Brand | Eaton / Cutler-Hammer |
|---|---|
| Part Number | GD3070 |
| Series | GD |
| Amperage | 70A |
| Poles | 3 |
| Mounting Style | Unit Mount |
| Voltage | 240VAC, 480VAC, 250VDC |
| Phase | 3 |
| AIC Rating | 65kA @ 240VAC, 22kA @ 480VAC, 10kA @ 250VDC |
| Terminal Type | Lugs |
|---|---|
| For Use With | Eaton Series C Panelboards, Motor Control Centers, Switchboards, Enclosures |
| Wire Gauge | 10-1/0 AWG |
| Max Wire | 1/0 AWG |
| Min Wire | 10 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, Undervoltage Release, Alarm Switch, Padlock Attachment, DIN Rail Adapter, Motor Operator |
|---|---|
| Accessories | Line and Load Terminals |
| Standards | CSA C22.2 No. 5, IEC 60947-2, NEMA AB 1, UL 489 |
| Approval | CSA, IEC, UL |
| Temp Rating | 40C |
| Construction Features | HACR Rated, Reverse Feed |
Product FAQs
8 answersWhat types of panels and enclosures are compatible with the GD3070?
The GD3070 is a unit-mount G-frame breaker designed for Eaton Series C panelboards, switchboards, motor control centers, and individual enclosures. It is a cable-in, cable-out breaker and does not plug directly onto a busbar.
Can the GD3070 be used in direct current (DC) applications?
Yes, this breaker is rated for up to 250 VDC with a 10 kA interrupting capacity, making it suitable for specific DC circuits in addition to its standard AC ratings.
Are the trip settings on the GD3070 field-adjustable?
No, this breaker features a fixed thermal and fixed magnetic trip unit. The long-time and instantaneous trip functions are factory-set and cannot be adjusted in the field.
Can this breaker be used in reverse feed applications?
Yes, Eaton Series C G-frame circuit breakers, including the GD3070, are suitable for reverse feed installations.
Is the GD3070 HACR rated?
Yes, this breaker carries an HACR rating, meaning it is approved for use with heating, air conditioning, and refrigeration equipment.
Can the GD3070 replace older Westinghouse G-frame breakers?
Yes, the GD3070 is a direct replacement for older Westinghouse and Cutler-Hammer Series C G-frame breakers with matching specifications. Always verify your existing frame type, mounting style, and interrupting ratings before replacing.
Does the GD3070 mount on a standard DIN rail?
Out of the box, the GD3070 is designed for unit mounting. However, it can be adapted for DIN rail installation using an optional Eaton DIN rail adapter accessory.
What conductor materials are compatible with the standard lugs?
The standard line and load terminals on the GD3070 accept 10 AWG to 1/0 AWG wire and are rated for use with both copper and aluminum (Cu/Al) conductors.
SuperClub
Join free. Get 500 SuperPoints.
Earn points on eligible purchases and redeem them at checkout.
100 SuperPoints = $1 off.
Warranties
Add an extra year of protection
60-Day Warranty
Your purchase includes 60 days of SuperBreakers warranty coverage.
Add a 1-year warranty extension in your cart.
Get a Quote
Don’t see what you’re looking for?
We source obsolete and hard-to-find parts every day.
Shipping
Free Shipping Policy
Parcel shipments with item value over $99 qualify for free economy shipping within the continental US. Please call to confirm special handling instructions. We do not charge a handling fee or require a minimum amount on any order. SuperBreakers does not ship on customer accounts.
Same Day Shipping
We strive to ship out your items the same day the order is placed. In rare circumstances SuperBreakers may reserve up to 5 business days to consolidate orders for complete shipment.
Expedited Shipments
Orders being shipped via Next Day Air, 2 Day Shipping or 3 Day Shipping must be received by 3 PM EST to guarantee same-day shipments. Expedited orders only ship on normal business days. Shipments will NOT be sent out on Saturdays and Sundays.
International Shipping
All International orders require a $1,000 minimum order threshold. Due to the special nature of these shipments, we require that these be placed with a SuperBreakers representative. Additional shipping and instructions will apply. All International Orders are Non-Cancel and Non-Refundable.
Reviews
Review summary
Customers rate this product 5.0 out of 5 based on 2 reviews.
Total 5 star reviews: 2 Total 4 star reviews: 0 Total 3 star reviews: 0 Total 2 star reviews: 0 Total 1 star reviews: 0
Search
Rating
2 reviews
- JSJohn S.ReviewingEaton / Cutler-Hammer GD3100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars6/10/23John Schlegel
I was very impressed how quickly I received my order. All customer support were very helpful.
- DIDavid I.ReviewingEaton / Cutler-Hammer GD3100 - 100A 3 Pole Molded Case Circuit BreakerI recommend this productRated 5 out of 5 stars2/20/17great product so fa
great product so fa