MT3450T - 450 Amp Trip Unit
- 450 Amp
- 600VAC
- 3 Pole
Purchase Options: New In Box
MT3450T - 450 Amp Trip Unit Description
MT3450T - 450 Amp Trip Unit
The MT3450T trip unit is a 450A, three-pole molded case circuit breaker accessory for your compatible Type MDL and HMDL breakers. Part of the Series C family, this T266 trip unit is specified for the J-K frame, giving maintenance teams several clear identifiers to check when replacing their existing component. Its physical dimensions are 7 inches long/deep, 4 inches high, and 4 inches wide, with a listed product weight of 3 pounds. These components are built to last, but always verify compatibility before installation.
Key Features and Benefits
- 450A amperage rating: Matches applications specifically requiring a 450-amp trip unit.
- Three-pole configuration: Designed for compatible three-pole breaker assemblies.
- T266 trip type: Provides a specific trip-unit designation that can be checked against the existing component.
- MDL and HMDL compatibility: Listed for use with Type MDL and HMDL molded case circuit breakers.
- J-K frame configuration: Helps maintenance personnel confirm the required breaker frame before installation.
- Series C designation: Identifies the product series for more precise replacement matching.
Technical Specifications
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Catalog Number: MT3450T
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Product Type: Molded Case Circuit Breaker Accessory
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Component Type: Trip Unit
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Amperage Rating: 450A
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Number of Poles: 3
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Trip Type: T266
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Used With: Type MDL and HMDL Breakers
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Frame Size: J-K Frame
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Series: Series C
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Product Length/Depth: 7 in.
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Product Height: 4 in.
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Product Width: 4 in.
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Product Weight: 3 lb.
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UPC: 782114350171
Material Compliance and Certifications
The MT3450T is UL Listed according to the supplied product specifications. For material compliance, the available information states “Contact Manufacturer,” so do not infer additional compliance claims.
Where It Works Best
The MT3450T 450A trip unit is for existing and legacy electrical systems using compatible Type MDL or HMDL breakers where the required configuration calls for a 450A, three-pole T266 trip unit, Series C, with a J-K frame. This matters for maintenance and replacement situations where retaining the specified breaker configuration, electrical rating, and physical fit is essential.
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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:3.75
- Height:7.5
- Depth:3.38
- Poles:3
- Amperes:450
- A.I.C. Rating & Volts:600VAC
- Type:MT
- Sub-Category:TRIP UNIT
- Approx Dimensions:3.75"W x 7.5"L x 3.38"D
- Additional Notes:Thermal Magnetic Only for MDL & HMDL Frames. Magnetic Trip Adjustable 5-10 Times Continuous Ampere Rating. - discontinued by the Manufacturer
Returns are easy
You may return unused items within 30 days of delivery for a full refund.
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