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Mersen Tri-Onic TRS-R Class RK5 Time-Delay Fuse, 600VAC/600VDC
Model: MER-TRS-1R
Mersen
Mersen TRS-RDC Tri-Onic Series 300V RK5 Time-Delay Fuse
The Mersen TRS-RDC Tri-Onic Series is a 300V DC-rated, time-delay Class RK5 fuse family engineered for DC circuit protection in surface and underground mining applications. This family is available across a Motor FLA range from 0.15A to 10A, letting electrical professionals select the exact current rating needed for rail heaters, trailing cables, pump motors, and other mine-duty DC circuits. Every fuse in the TRS-RDC line shares a rugged glass melamine (GMG) body, tin-plated copper ferrule terminals, and MSHA approval, giving installers a consistent, code-compliant platform across the entire amperage lineup. The time-delay characteristic common to the whole series allows motor start-ups and high inrush loads to pass without nuisance opening, making it a dependable choice for the harshest mine-duty applications.
Key Features
- Time-Delay Characteristic: Rides through motor start-ups and high inrush loads without nuisance opening, a shared trait across the full 0.15A-10A Motor FLA range.
- Durable Construction: Rugged glass melamine (GMG) body for superior reliability in harsh mine environments.
- DC-Rated Performance: 300V rated voltage (UL) suited for mine duty and other long time-constant applications.
- Ferrule Terminals: Tin-plated copper terminals with clip mounting for secure, reliable connections.
- Compact Dimensions: 5 in product length and 0.81 in product diameter for standard fuse-holder compatibility across the series.
- Fuse Class: Class RK5 time-delay speed/characteristic for coordinated circuit protection.
- Selectable Motor FLA Range: Choose from 0.15A, 1A, or 10A ratings to match the exact load requirement of the circuit.
Certifications & Compliance
- MSHA Approval No. 28-26-0
- Meets severe third-party requirements for 600VDC-rated fuses
Technical Specifications
- Body/Insulating Material: GMG
- Rated Voltage DC (UL): 300 V
- Speed/Characteristic: Time Delay
- Motor FLA Options: 0.15A, 1A, 10A
- Sell Pack Quantity: 10 Each
- Sell Pack Length: 5.12 in
- Sell Pack Width: 4.12 in
- Sell Pack Height: 1.75 in
Typical Applications
- Rail Heaters
- Trailing Cables
- Mine Circuits
- Pump Motors
- Surface and Underground Mining Electrical Systems
Why Mersen?
Mersen's TRS-RDC Tri-Onic Series combines a rugged glass melamine body with MSHA-approved, DC-rated performance to deliver dependable time-delay protection across a full range of Motor FLA ratings for the harshest mine-duty circuits. The tin-plated copper ferrule terminals and Class RK5 time-delay design give electrical professionals a coordinated, code-compliant solution for motor start-ups and high inrush loads, whatever amperage the application demands. Choose Mersen for reliable, industry-tested fuse protection built for demanding DC applications.
"Manufacturer Resources
Mersen Product Catalog
Product Specs
- Connection/Terminal Type:
- Ferrule
- Product Length:
- 5 in
- Sell Pack Width:
- 4.12 in
- Mounting Method:
- Clip
- Connection/Terminal Material:
- Tin-Plated Copper
- Sell Pack Length:
- 5.12 in
- Sell Pack Quantity:
- 10 Each
- Speed/Characteristic:
- Time Delay
- Product Diameter:
- 0.81 in
- Sell Pack Height:
- 1.75 in
- Rated voltage DC UL:
- 300 V
- Fuse Class:
- Class RK5
- Body/Insulating Material:
- GMG
- list_batch:
- MERSEN-20260825
- Department:
- Electrical
- Product Group:
- Wiring Devices
- Product Type:
- Fuse
- Product Material:
- GMG
- Voltage Rating:
- 300V
- Listing:
- MSHA Approved
- Product Subgroup:
- Fuses by Type