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Mersen TRS3-2/10RDC - Fuse TRS-RDC - Class RK5 - Time-Delay 300VDC 3.2A Ferrule Tri-Onic®
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Mersen TRS3-2/10RDC Fuse TRS-RDC - Class RK5 - Time-Delay 300VDC 3.2A Ferrule Tri-Onic®

Alternate Item Number: 782001229313

UPC: 782001229313


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Specification Sheet

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Minimum Qty: 10

Multiplier: 10

*Contact for lower quantities*

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

The Mersen TRS3-2/10RDC is a Class RK5 Tri-Onic® time-delay fuse specifically engineered for DC circuit protection in demanding environments, particularly within surface and underground mining operations. This Mersen fuse is MSHA approved and meets stringent third-party requirements for 600VDC rated fuses, demonstrating its reliability in critical applications. Featuring time-delay characteristics, the TRS3-2/10RDC is designed to withstand motor start-ups and high inrush currents without nuisance opening, ensuring operational continuity. Its rugged glass melamine body provides superior durability in harsh conditions. With a voltage rating of 300VDC and a current rating of 3.2A, this ferrule-style fuse offers essential overcurrent protection with a 20kA I.R. DC interrupting rating. Key applications include mine circuits, trailing cables, pump motors, and rail heaters. The TRS-RDC series offers AC & DC ratings, current-limiting capabilities, and a rejection-style design when used with recommended fuse blocks to prevent incorrect replacements. This Mersen fuse is UL/CSA listed to standard 248-12, with a DC listing specifically for the TRS models. SKU: TRS3-2/10RDC.
  • Time-delay fuse for motor start-ups and inrush loads
  • 300VDC voltage rating, 3.2A current rating
  • Class RK5, Ferrule connection type
  • MSHA approved for mine duty applications
  • Rugged glass melamine body for harsh environments

Specifications

Amperage Rating
3.2 A
Application
Mine circuits Trailing cables Pump motors Rail heaters
Body Material
GMG
Brand Name
Mersen
Class
Class RK5
Connection
Ferrule
Connection Material
Tin-Plated Copper
Interrupt Rating
20 kA
Mounting
Clip
Size
5 x 0.81 in
Size
127 x 20.65 mm
Special Features
DC rated for mine duty and other long time-constant applications Time-delay for motor start-ups and high inrush loads without nuisance opening Rugged glass melamine body for superior reliability in harsh environments
Standard
MSHA approval no. 28-26-0
Sub Brand
Tri-Onic®
Type
Class RK5
Voltage Rating
300 VDC
Package Dimensions (L x W x H)
5 in x 0.81 in x 0.81 in
Package Dimensions (L x W x H)
127 mm x 20.65 mm x 20.65 mm
Package Weight (Imperial)
0.137 lb
Package Weight (Metric)
0.062 kg
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POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

LCC5

POWR-JAW clamps improve the contact between fuse and clip. The unnecessary heat from poor contact due to the loss of spring force in the clips can cause nuisance fuse opening and premature aging of surrounding components. High temperature phenolic resin knob designed for the most severe environments 7 sizes to provide effective coverage. Simple design makes installation easy.

Frequently Asked Questions

What is the voltage rating for the TRS-RDC fuse series?

The TRS-RDC fuse series is rated for 300VDC for amperages from 0.1 to 30A, and 600VDC for amperages from 35 to 400A.

What is the amperage range for the TRS-RDC fuses?

The amperage range for the TRS-RDC fuses is from 1/10 to 400A.

What is the interrupting rating (IR) for these DC fuses?

The interrupting rating (IR) for the TRS-RDC fuses is 20kA I.R. DC.

What type of fuse is the TRS-RDC?

The TRS-RDC is a time-delay fuse with DC rating, designed for mine duty and other long time-constant applications.

What are the primary applications for the TRS-RDC fuse series?

The TRS-RDC fuses are designed for mine circuits, trailing cables, pump motors, and rail heaters.

Does the TRS-RDC have any special approvals?

Yes, the TRS-RDC is MSHA approved with approval number 28-26-0.

What is the body material of the TRS-RDC fuse?

The TRS-RDC features a rugged glass melamine body for superior reliability in harsh environments.

What are the physical dimensions for 61-100A TRS-RDC fuses?

For 61-100A ratings, the dimensions are A: 7-7/8 in, B: 1-5/16 in, C: 1/8 in, D: 3/4 in, E: 1 in.

What are the physical dimensions for 201-400A TRS-RDC fuses?

For 201-400A ratings, the dimensions are A: 11-5/8 in, B: 2-9/16 in, C: 1/4 in, D: 1-5/8 in, E: 1-7/8 in.

What are the physical dimensions for 0-30A TRS-RDC fuses?

For 0-30A ratings, the dimensions are A: 5 in, B: 13/16 in. Other dimensions are not specified for this range.

Frequently Asked Questions about Mersen

What industries and applications are Mersen products used for?

Mersen products are used across diverse industrial sectors including solar power, electric vehicles, buildings/construction, industrial automation, power distribution, HVAC, elevators, telecommunications, and specialty manufacturing. Key application areas include circuit protection, surge protection, battery module protection, electrical safety systems, and power management for residential, commercial, and utility-scale installations.

What are the main product lines offered by Mersen?

Mersen offers five primary electrical power product lines: IEC and UL/CSA Fuses and Fusegear, Surge Protection, Low Voltage Disconnect Switches, Power Distribution Blocks, and Engineered Solutions. Their comprehensive range includes specialized components like high-speed fuses, modular fuse holders, surge arresters, and custom-engineered electrical protection systems for industrial and power management applications.

What are the key features of Mersen products?

Mersen products feature advanced electrical protection and power management solutions with key characteristics including finger-safe design, compact modularity, and high-performance safety features. Their product lines span electrical power components like fuses, surge protection, power distribution blocks, and specialized solutions for industrial, solar, and building applications. Critical features include UL/CSA approvals, high short-circuit current ratings, and innovative technologies like the Fuse Control™ program that minimize electrical risks and optimize system performance.

What environmental ratings do Mersen products have?

Mersen products meet rigorous environmental ratings across multiple standards, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13, CSA Type 1, 2, 3, 4, 4X, 12, and 13, and NEMA Type 1, 2, 3, 4, 4X, 12, and 13. They feature IEC 60529 IP66 protection, with enhanced UV inhibitors for outdoor weathering and operating temperatures ranging from -40°C to 130°C (-40°F to 266°F). These ratings ensure superior protection in wet, corrosive, and challenging industrial environments.

What accessories are available for Mersen products?

Mersen offers multiple accessories for their fuse blocks and systems, including safety pullers (DFC3M and DFC3LP), DIN-rail adapters (DRM), bus bars, auxiliary contacts, and specialized mounting hardware. Key accessories include the DFC3M safety puller for 1-1/2" x 13/32" midget or Class CC fuses, the DRM adapter for mounting 303 series fuse blocks on DIN-rail, and UltraSafe fuse module accessories like bus bars and auxiliary contacts that enable module interconnection and monitoring.

How are Mersen products typically installed?

Mersen products are typically installed in electrical distribution systems, control panels, and industrial automation environments using multiple mounting options. These include service entrance panel mounting, distribution panel installation, control panel DIN rail mounting, and custom engineered solutions like Fused Coordination Panelboards. Installation depends on the specific product type, such as fuses, surge protective devices, or switches, and is designed to provide electrical protection and circuit safety in various industrial and commercial applications.

What certifications and standards do Mersen products comply with?

Mersen products are certified to multiple international standards, including UL (Underwriters Laboratories), CSA (Canadian Standards Association), CCC (China Compulsory Certification), and EAC (Eurasian Conformity). Our products meet rigorous safety and performance standards for industrial applications across North America, China, Russia, and other global markets, ensuring compliance and reliability in electrical power and advanced materials solutions.

What technical support does Mersen offer?

Mersen provides comprehensive technical support through multiple channels, including technical experts located in your time zone who can assist with product selection, application guidance, and troubleshooting. Their Fuse Control™ program offers a free Fuse Inventory Audit & Analysis, and customers can access technical resources through their sales representatives and online platform ep.mersen.com.