Mersen 6D60R Class RK1 Time-delay Fuse 60A 600V

Product Description

The MERSEN 6D60R is a Class RK1 time-delay ferrule fuse rated at 60 amps and 600 volts AC/DC, part of the Amp-Trap 2000 A6D-R series. This fuse is engineered to deliver IEC Type 2 no-damage protection on mains, feeders, and branch circuits serving both motor and non-motor loads. It opens fast enough under extreme fault conditions to protect motor starters, switches, and downstream components from short-circuit damage, while its time-delay characteristic allows motor in-rush currents to pass without nuisance opening. The SmartSpot indication system provides a visible blown-fuse signal to speed up troubleshooting.

This fuse is suited for use in industrial and commercial electrical distribution systems where motor loads and mixed branch circuit protection are required. It is commonly installed by licensed electricians in panel boards, disconnect switches, and combination motor starters. The 6D60R is also a direct field replacement for existing 600V Class H, K, or RK5 fuses, making it a practical upgrade choice during service or retrofit work.

Key Features

• Class RK1 rating provides a higher level of short-circuit protection than Class H, K, or RK5 fuses
• Time-delay design accommodates motor in-rush currents without nuisance tripping
• Rated for 200 kA AC maximum interrupting capacity for robust fault protection
• SmartSpot indication system gives a visible signal when the fuse has opened
• Ferrule connection type with tin-plated copper terminals for reliable contact
• PolyTube body construction for durable insulation

Compatibility

The 6D60R is a direct replacement for 600V Class H, K, and RK5 ferrule fuses already installed in the field, and is compatible with standard Class RK1 ferrule-type fuse holders and disconnect switches rated for 60A at 600V AC/DC.

Installation Notes

Installation should be performed by a qualified electrician in accordance with the National Electrical Code (NEC) and applicable local codes. Always de-energize and lock out the circuit before replacing a fuse. Verify that the fuse holder or disconnect switch is rated for Class RK1 ferrule fuses at the appropriate voltage and amperage before installation. Do not attempt to service fuses under load.

Technical Specifications

• Ampere Rating: 60A
• Rated Voltage AC (UL): 600 volts
• Rated Voltage DC (UL): 600 volts
• Frequency: 50/60 Hz
• AC/DC: AC/DC
• Fuse Class: Class RK1
• Speed/Characteristic: Time Delay
• AC Max Interrupting Capacity: 200 kA
• Connection/Terminal Type: Ferrule
• Connection/Terminal Material: Tin-Plated Copper
• Body/Insulating Material: PolyTube
• Indication System: SmartSpot
• Mounting: Clip
• Length: 5.5 inches
• Weight: 0.34 pounds

Standard Information

• Brand: MERSEN
• Manufacturer Part Number: 6D60R