
MA3400 - 400 Amp Circuit Breaker


- 400 Amp
- 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
- 3 Pole
Purchase Options: New Surplus
MA3400 - 400 Amp Circuit Breaker Description
MA3400 - 400 Amp Circuit Breaker
The MA3400 is a 400 amp, 3-pole MA thermal magnetic circuit breaker intended for your compatible electrical equipment where the MA type, current rating, trip-unit configuration, and physical size match the existing application. This breaker is 40°C rated and uses an interchangeable trip unit, two important details to confirm when sourcing a replacement for legacy electrical equipment. Built to last, it has solid construction suited to its intended electrical application when selected, installed, and maintained correctly.
Key Features and Benefits
- 400 Amp Rating: Rated at 400A for electrical applications requiring this specific current rating.
- 3-Pole Configuration: Provides the specified three-pole arrangement for matching compatible equipment.
- MA Type: The MA designation helps technicians identify the correct breaker type during replacement and maintenance.
- Thermal-Magnetic Circuit Breaker: Uses the specified thermal-magnetic configuration.
- Interchangeable Trip Unit: Equipped with an interchangeable trip unit, an important characteristic when matching the existing breaker configuration.
- 40°C Rated: Carries the specified 40°C temperature rating.
- Load-Side Terminals Included: The supplied configuration includes load-side terminals.
- Built to Last: Solid construction suits the breaker's intended electrical application when properly selected, installed, and maintained.
Technical Specifications
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Part Number: MA3400
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Type: MA
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Product Type: Thermal Magnetic Circuit Breaker
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Amperes: 400A
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Poles: 3
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Temperature Rating: 40°C
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Trip Unit: Interchangeable
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A.I.C. Rating & Volts: 22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
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Terminals: Load-side terminals included
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Height: 16.0 in.
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Width: 8.25 in.
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Depth: 4.0 in.
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Dimensions: 8.25"W x 16.00"L x 4.00"D
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Approximate Shipping Weight: 50.00 lbs.
Material Compliance and Certifications
The available MA3400 specifications did not include specific material compliance information, agency certifications, or electrical listings. Therefore, do not assume UL, IEC, RoHS, REACH, or other certification and compliance status.
If the application requires a particular listing or material-compliance standard, confirm it in the product markings or applicable technical documentation before installation.
Where It Works Best
The MA3400 400A 3-pole circuit breaker is best suited for compatible existing and legacy electrical equipment that requires an MA-type, 40°C-rated thermal magnetic circuit breaker with an interchangeable trip unit. It makes the most sense in replacement situations where maintaining the required form, fit, and functional characteristics of the existing installation is the priority.
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®, Edison®, Edison Fuse®, GTE Sylvania®, 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:4.0
- Poles:3
- Amperes:400
- A.I.C. Rating & Volts:22k @ 600VAC; 30k @ 480VAC; 42k @ 240VAC
- Type:MA
- Approx Dimensions:8.25"W x 16.00"L x 4.00"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).