NB31200 - 1200 Amp Circuit Breaker
- 1200 Amp
- 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
- 3 Pole
Purchase Options: New In Box
NB31200 - 1200 Amp Circuit Breaker Description
NB31200 - 1200 Amp Circuit Breaker
The NB31200 is a 1200-amp, 3-pole thermal-magnetic circuit breaker for compatible NB-type electrical equipment. For replacement work, the details matter: this breaker is rated for 40°C, uses an interchangeable trip unit, and includes load-side terminals. Its interrupting ratings are 22k A.I.C. at 600VAC, 30k A.I.C. at 480VAC, and 42k A.I.C. at 240VAC. The breaker measures 16 inches high, 8.25 inches wide, and 5.5 inches deep. If you're maintaining older electrical equipment and need an NB31200, these dimensions and electrical ratings give you the information needed to compare it with the breaker already installed. It's a straightforward, built-to-last option for systems specifically designed around this type of breaker.
Key Features and Benefits
- 1200-amp rating for applications requiring this specific amperage.
- 3-pole design for compatible three-pole electrical systems.
- Uses a thermal magnetic trip mechanism.
- Interchangeable trip unit provides the configuration associated with the NB31200.
- Rated 22k A.I.C. at 600VAC.
- Rated 30k A.I.C. at 480VAC.
- Rated 42k A.I.C. at 240VAC.
- 40°C rated for applications calling for this temperature rating.
- Load-side terminals are included.
- Measures 16" H × 8.25" W × 5.5" D for checking physical fit.
Technical Specifications
-
Part Number: NB31200
-
Type: NB
-
Breaker Type: Thermal Magnetic
-
Amperage: 1200A
-
Poles: 3
-
A.I.C. Rating: 22k @ 600VAC
-
A.I.C. Rating: 30k @ 480VAC
-
A.I.C. Rating: 42k @ 240VAC
-
Temperature Rating: 40°C
-
Trip Unit: Interchangeable
-
Load-Side Terminals: Included
-
Height: 16.0 in.
-
Width: 8.25 in.
-
Depth: 5.5 in.
Material Compliance and Certifications
- No specific material compliance standards or third-party certifications were provided with the available NB31200 specifications. If a particular certification or listing is required for the installation, confirm it on the breaker nameplate and in the applicable equipment documentation.
Where It Works Best
- The NB31200 circuit breaker is intended for compatible legacy electrical systems that call for an NB-type 1200A, 3-pole thermal magnetic breaker. It's especially relevant for maintenance and replacement work where matching the existing breaker's physical size, trip configuration, amperage, voltage, and interrupting ratings matters.
Use of Original Equipment Manufacturer (OEM) trademarks, names, and logos is for informational and identification purposes only. This does not imply any affiliation, sponsorship, endorsement, or approval by the original equipment manufacturer. CIRCUIT BREAKER SUPERSTORE® is an independent reseller and is not an authorized distributor, affiliate, or representative of any manufacturer. Manufacturer warranties do not apply unless expressly stated. All trademarks and registered trademarks are the property of their respective owners.
Eaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Crouse-Hinds®, and Cooper® are registered trademarks of Eaton Corporation plc. Products sold are surplus, used, or refurbished and are NOT supplied by Eaton Corporation plc or its affiliates.
Specifications
- Width:8.25
- Height:16.0
- Depth:5.5
- Poles:3
- Amperes:1200
- A.I.C. Rating & Volts:22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
- Type:NB
- Approx Dimensions:8.25"W x 16.00"L x 5.50"D
- Additional Notes:40°C Rated, Thermal Magnetic Circuit Breaker With Interchangeable Trip Unit. This item includes load-side terminals. - discontinued by the manufacturer
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
FREE ground shipping on breaker orders over $100 and all other items with orders over $500.
Shipping charges are Prepaid and Allowed on UPS Ground orders for all other products on orders over $500.00, again only when shipping within the lower 48 continental United States, provided the product(s) can safely ship UPS Ground.
If the product cannot safely ship via UPS Ground, or is too heavy to ship UPS Ground, then the product will be shipped via freightliner at buyer's expense.
CIRCUIT BREAKER SUPERSTORE® offers one to five day delivery in the United States. The variation depends on the chosen shipping speed and the warehouse location for the product(s).
Same Day Shipping
We strive to ship out your items within one business day.
In rare circumstances, CIRCUIT BREAKER SUPERSTORE® may reserve up to 5 business days to complete shipment. Feel free to contact us if your order is time sensitive.
CIRCUIT BREAKER SUPERSTORE® provides a limited 1-year warranty on both new and reconditioned products. Rest assured, all products are authentic OEM (original equipment manufacturer).