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Midget Open Style (303 Series)

The Midget Open Style (303 Series) is part of the Mersen (formerly Ferraz Shawmut) fuse holders & blocks line, distributed by Gross Automation.

Midget Open Style (303 Series)

Ferraz Shawmut Midget Fuse Blocks accommodate all 30 ampere 1-1/2” x 13/32” midget fuses. A choice of box, screw, or pressure-plate connectors fit a wide range of stranded or solid copper wire. Insulators are glass-filled polycarbonate (GFPC) with verified dielectric strength in excess of 2500V. Fuse blocks feature a unique adder block which can be snapped onto 1-, 2- or 3-pole blocks to form multi-pole segmented blocks of as many poles as desired. All fuse clips are made of high conductivity tin-plated copper alloy.

Specifications

SpecificationValue
RatingsAC: 600VAC - 30A; All fuse blocks meet the requirements of UL Std. 512; Midget Block - UL Recognized Component Guide IZLT2, File E52283; Midget Block - CSA Certified Class 6225, File 32169; RoHS Compliant

Ratings

  • AC: 600VAC - 30A
  • All fuse blocks meet the requirements of UL Std. 512
  • Midget Block - UL Recognized Component Guide IZLT2, File E52283
  • Midget Block - CSA Certified Class 6225, File 32169
  • RoHS Compliant

Catalog Numbers

600 Volt, 30A Midget Fuse Blocks

Connector TypeWire RangePolesCatalog Number (Midget)
Screw w/double quick connects at both endsCu #10-14Adder30310+
Screw w/double quick connects at both endsCu #10-14130311+
Screw w/double quick connects at both endsCu #10-14230312+
Screw w/double quick connects at both endsCu #10-14330313+
Screw w/double quick connects at both endsCu #10-14430314+
Pressure plate (sems) w/double quick connects at both endsCu #10-14Adder30320+
Pressure plate (sems) w/double quick connects at both endsCu #10-14130321+
Pressure plate (sems) w/double quick connects at both endsCu #10-14230322+
Pressure plate (sems) w/double quick connects at both endsCu #10-14330323+
Pressure plate (sems) w/double quick connects at both endsCu #10-14430324+
Copper boxCu #6-14Adder30350+
Copper boxCu #6-14130351+
Copper boxCu #6-14230352+
Copper boxCu #6-14330353+
Copper boxCu #6-14430354+

Accessories

Catalog NumberDescription
U09301+End barrier, to convert Midget or Class CC adder pole to single pole

Documentation

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