Class R Fuse Reducer 200-100A, 600V AC/DC, UL & CSA Certified
Mersen

Mersen R212 Class R Fuse Reducer 200-100A, 600V AC/DC, UL & CSA Certified

  • MPN: R212
  • UPC: 782001752408
  • PPN: FER-R212

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Spec sheet

Description

Mersen fuse reducers allow the use of lower rated fuses in existing equipment having clips with higher ampere ratings. The use of closer rated time-delay fuses can improve circuit protection. For example, renewable or one-time fuses feeding a motor can be replaced with fuses sized closer to the motor nameplate current. Non-rejection reducers will allow Class H, K or R fuses to fit Class H or K clips. Rejection-type reducers will allow only Class R fuses to fit Class R clips or only Class J fuses to fit Class J clips. Class J fuse reducers are not for bolt on applications.

Features

  • Engineered to bridge the gap between mismatched hardware sizes, this pair of fuse reducers allows a 100-amp fuse to fit securely into standard 200-amp fuse clips. This enables facility maintenance teams to downsize overcurrent protection to match smaller, newly installed loads or downsized motors without requiring an expensive, time-consuming replacement of the entire safety switch or panelboard interior.
  • Featuring a dedicated Class R rejection footprint, the R212 physically prevents standard Class H or K fuses from being inserted into a Class R clip layout. This mechanical fail-safe guarantees that only high-interrupting Class R fuses can be used, maintaining the integrity of your safety system and preventing devastating arc-flash hazards or code violations.
  • Built to adapt across varying voltage infrastructures, this hardware operates reliably up to 600 Volts AC or DC, as well as 250 Volt configurations. This broad compatibility allows industrial maintenance electricians to stock a single part number to handle fuse adaptations for both low-voltage office branch networks and heavy-duty 600V manufacturing equipment loops.
  • Fully certified for short-circuit currents up to 200,000 Amps symmetric, this rugged component matches the extreme interrupting capabilities of modern industrial fuses. This ensures the adapter will not disintegrate or cause arc tracking during a violent, downstream dead-short event, satisfying strict OSHA workplace standards and keeping your facility safe.

Documentation & Downloads

Specifications

Additional

Voltage
600 V AC/DC
Class
R
UL Certification
E105670 IZZR.E105670
CE Conformity
Consult Technical Services
Lead Free
Consult Technical Services
Amperage Range100A to 200A
SCCR200 kA
CSA Certification6225-01 207417
ROHS CompliantConsult Technical Services

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