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Warehouse Clearance Fuse Tri-onic® 600v 400a Time-delay Class Rk5 Trs Series Device [VENukz9w]

$26.99 $86.99 -69%

The Mersen Tri-Onic 600 Volt 400A Time-Delay Class RK5 TRS Series Fuse provides reliable circuit protection for industrial applications. This current-limiting dual element fuse features rejection-style design and time-delay functionality to protect m

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The Mersen Tri-Onic 600 Volt 400A Time-Delay Class RK5 TRS Series Fuse provides reliable circuit protection for industrial applications. This current-limiting dual element fuse features rejection-style design and time-delay functionality to protect motor circuits, transformers, and branch circuit general-purpose equipment.

  • Rating: 400 amperes with 600 volt AC/DC capacity and 200 kA interrupt rating
  • Body: PolyTube with tin-plated copper terminals for dimensional stability in harsh environments
  • Design: Time-delay slow blow design prevents nuisance openings during motor start-ups and transformer inrush currents
  • Dimensions: Measures 11.63 inches long with 2.56 inch diameter for standard industrial applications
  • Compliance: UL listed to standard 248-12 and CSA certified to standard C22.2 no. 248.12

Features

  • Time-delay
  • Current-limiting
  • AC & DC rated
  • Optional solid state SmartSpot blown fuse indicator
  • Time-delay for motor start-ups and transformer inrush currents without nuisance opening
  • Current-limiting for low peak let-thru current
  • Rejection-style design prevents replacement errors (when used with recommended fuse blocks)
  • Easy-to-read label for quick brand recognition and replacement
  • Metal-embossed date and catalog number for traceability and lasting identification
  • Fiberglass body provides dimensional stability in harsh industrial settings
  • High-grade silica filler ensures fast arc quenching and high current limitation

Applications

  • Motor circuits
  • Mains
  • Feeders
  • Branch circuits
  • Transformers
  • Service entrance equipment
  • General-purpose equipment

Approvals & Standards

  • UL listed to standard 248-12 File E2137
  • CSA certified to standard C22.2 no. 248.12
  • DC listed to UL standard 248 TRS only

Specifications

  • Rated voltage AC UL: 600 V
  • Rated voltage DC UL: 600 V
  • Frequency: 50/60 Hz
  • Ampere Rating: 400 A
  • Fuse Class: Class RK5
  • Speed/Characteristic: Time Delay
  • Mounting: Clip
  • AC Max I.R./Breaking Capacity: I1: 200 kA
  • Connection/Terminal Material: Tin-Plated Copper
  • Connection/Terminal Type: Blade
  • Body/Insulating Material: PolyTube

Product Dimensions

  • Product Weight: 3.67 lb
  • Product Diameter: 2.56 in
  • Product Length: 11.63 in

Packaging Dimensions

  • Sell Pack Quantity: 1 Each
  • Sell Pack Weight: 3.85 lb
  • Sell Pack Width: 2.62 in
  • Sell Pack Length: 2.62 in
  • Sell Pack Height: 11.75 in

Downloads

Spec Sheet
Drawings
Curves 1
Curves 2

What Our Customers Say

January 6, 2026

Absolutely no complaints!

Excellent product, and truly excellent quality.

- Phyllis B..

January 6, 2026

Absolutely no complaints!

So effective it almost feels like magic.

- Sebastian H..

January 6, 2026

Absolutely no complaints!

A very smart and useful piece of technology.

- Jasmine F..

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