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Mersen OT350
Fuse 250V 350A Fast-Acting Class K5 OT Series
Product Description
The OT and OTN series of fuses are designed to deliver low-cost protection for feeder and branch circuits, particularly for lighting, heating, and other non-motor applications. With a rated voltage of 250 V AC and 250 V DC, these fast-acting fuses are capable of safely interrupting available short-circuit currents up to 50,000 amperes across all ratings.
It is critical to note that these fuses are not rejection types; therefore, replacements must be selected carefully to match or exceed the original interrupting ratings. Specifically, the OTN(15-60) versions comply with Canadian electrical code requirements for Type P low melting-point, non-time-delay fuses.
This fuse features a Class K5 designation, ensuring reliability in various applications. Constructed with a tin-plated copper terminal type and a PolyTube body material, it supports a clip mounting style for straightforward installation. The fuse weighs 1.45 lb with dimensions of 2.06 in in diameter and 8.63 in in length, making it suitable for various electrical setups.
Offer details
- Best offer from:
Trusted supplier — Italy, member since 2021, 10–19 employees
- Availability:
- 0 pcs.On RequestUpdated at: 06-09-2026
- Warranty:
- 12 months
- Condition:
- New Factory Sealed
Specifications
- Brand
- Mersen
- Rated voltage AC UL
- 250 V
- Rated voltage DC UL
- 250 V
- Ampere Rating
- 350 A
- ROHS Compliant
- Yes
- Fuse Class
- Class K5
- Speed/Characteristic
- Fast-Acting
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Documents
Data Sheet
Datasheet for Mersen OT350, including specifications and features.
CAD Models
3D CAD model and technical drawings, ready for your design software.
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