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Ultrasafe Fuseholders - US14 Series

The Ultrasafe Fuseholders - US14 Series is part of the Mersen (formerly Ferraz Shawmut) ultrasafe fuse holders line, distributed by Gross Automation.

Ultrasafe Fuseholders - US14 Series

Ferraz Shawmut ULTRASAFE modular 750 volt Fuse Holders offer the highest levels of safety and features for 14 x 51 mm fuses. Like all ULTRASAFE holders, they qualify as "finger safe" to an IP20 grade of protection under IEC standards, including fuse changing (with the flick of a finger). The US14 range is available in 1, 2 or 3 pole units, with or without blown-fuse indicator lights in each pole. These holders come standard with a mechanical indicator that shows fuse presence. If a striker fuse is used, this mechanical indicator will also indicate a blown fuse. Microswitches can be supplied with the holders (or ordered separately for field installation) to allow remote communication. These holders also feature padlocking capabilities, DIN rail mounting with our unique latching system to allow re-positioning, and the capability to be joined as multiple poles in the field.

Specifications

SpecificationValue
RatingsAC: 750VAC, 50A , Withstand rating: 200kA I.R., RoHS Compliant; All Ultrasafe Fuse Holders meet the requirements of UL512; UL Recognized; RoHS Compliant
FeaturesFinger Safe; Optional Indicator Lights; Optional Microswitches; DIN Rail Mount; Compact Footprint; Quick, Easy Fuse Change; Applications; All circuits up to 750 volts using semiconductor fuses for protection of small inverters, UPS systems, motor drives, etc.; No-load disconnect; IP20 requirements; All circuits up to 750 volts using semiconductor fuses for protection of small inverters, UPS systems, motor drives, etc.; No-load disconnect; IP20 requirements

Features

  • Finger Safe
  • Optional Indicator Lights
  • Optional Microswitches
  • DIN Rail Mount
  • Compact Footprint
  • Quick, Easy Fuse Change
  • Applications
  • All circuits up to 750 volts using semiconductor fuses for protection of small inverters, UPS systems, motor drives, etc.
  • No-load disconnect
  • IP20 requirements
  • All circuits up to 750 volts using semiconductor fuses for protection of small inverters, UPS systems, motor drives, etc.
  • No-load disconnect
  • IP20 requirements

Ratings

  • AC: 750VAC, 50A , Withstand rating: 200kA I.R., RoHS Compliant
  • All Ultrasafe Fuse Holders meet the requirements of UL512
  • UL Recognized
  • RoHS Compliant

Catalog Numbers

Catalog NumberColumn 2Column 3Column 4
US141+1 POLEUS141MI+1P w/ MICROSWITCH & INDICATOR
US142+2 POLEUS142MI+2P w/ MICROSWITCH & INDICATORS
US143+3 POLEUS143MI+3P w/ MICROSWITCH & INDICATORS
US141I+1P w/ INDICATORUS143M2I+3P w/ 2 MICROSWITCHES & INDICATORS
US142I+2P w/ INDICATORSUS141N+1 POLE - NEUTRAL
US143I+3P w/ INDICATORSUS14PAK+ACCESSORY - MULTI-POLE ASSEMBLY KIT
US141M+1P w/ MICROSWITCHUS14S1P+ACCESSORY - 1 POLE MICROSWITCH
US142M+2P w/ MICROSWITCHUS14S3P+ACCESSORY - 3 POLE MICROSWITCH
US143M+3P w/ MICROSWITCHUS14S3P2+ACCESSORY - 3 POLE, 2 MICROSWITCHES
US143M2+3P w/ 2 MICROSWITCHES
US14PAK+MULTI-POLE ASSEMBLY KITUS14S3P+MICROSWITCH FOR 3 POLE
US14S1P+MICROSWITCH FOR SINGLE POLEUS14S3P2+2 MICROSWITCHES FOR 3 POLE

Documentation

Fuses and breakers set your panel's short-circuit rating. See how our UL 508A shop rates it.