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PHP-Class-J-Switch

Compact Fused Switch Class J

Approvals & Standards
cULus Listed file No. WHTY. E483215 - UL 98 - Open type switches
IEC 60529 degree of protection IP20
IEC 60947-7-3

The Mersen FS Series is a UL 98 Listed fused disconnect switch designed for branch circuit protection using any UL Listed Class J fuse. Engineered for performance and convenience, the FS Series delivers the high interrupting capacity of Class J fuses (200kA SCCR) in the same footprint of a fuse holder. It occupies less space than a standard fuse holder and traditional disconnect switch combination, enabling more streamlined panel designs and improved off-the-shelf distribution availability when time and convenience matter most. Available in 30A and 60A versions, the FS Series includes lockout/tagout (LOTO) capability and integrated LED fuse status indication.

The Mersen FS Series is a UL 98 Listed fused disconnect switch designed for branch circuit protection using any UL Listed Class J fuse. Engineered for performance and convenience, the FS Series delivers the high interrupting capacity of Class J fuses (200kA SCCR) in the same footprint of a fuse holder. It occupies less space than a standard fuse holder and traditional disconnect switch combination, enabling more streamlined panel designs and improved off-the-shelf distribution availability when time and convenience matter most. Available in 30A and 60A versions, the FS Series includes lockout/tagout (LOTO) capability and integrated LED fuse status indication.

Key features & benefits

  • Smaller footprint compared to a traditional Class J disconnect

  • Accepts Class J 30A and 60A fuses for branch circuit protection

  • 35mm DIN rail mounted

  • Built-in lockout/tagout feature

  • Integrated LED Fuse status indication

  • 200kA SCCR rating

  • 75°C CU Wire

  • Factory & Field Wiring

  • Minimum Indicator Voltage - 90V-AC and 12V-DC

Applications

  • Industrial control panels

  • Data centers

  • Main disconnects

  • Motor branch circuit protection

  • Fused Coordination Panels

  • For use as a motor disconnect, see horsepower rating section

Technical Specifications
Short Circuit Current Rating (SCCR) 200 kA
UL Category Code WHTY
Reach Compliant Yes
Max Operating Temp. 75 °C
Min Operating Temp. -40 °C

Reference Finder

6 references in this series

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Item number Ampere rating Fuse Type/Class Number of poles Enclosure NEMA Type Product weight
- Class J 1-Pole - 0.2531kg
- Class J 2-Pole - 0.5062kg
30A Class J 3-Pole - 0.7593kg
60A Class J 1-Pole - 0.2712kg
60A Class J 2-Pole - 0.5425kg
60A Class J 3-Pole - 0.8137kg
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