Ferrule Fuse Blocks for 14x51mm Fuses - 703, U705 Series
The Ferrule Fuse Blocks for 14x51mm Fuses - 703, U705 Series is part of the Mersen (formerly Ferraz Shawmut) fuse holders & blocks line, distributed by Gross Automation.

750V Semiconductor Fuse Holders - Ferraz Shawmut Semiconductor Fuse Holders feature open face styles. Each version is rated 750 volts and accommodates 14 x 51mm or 22 x 58 mm fuses. 703, U705 and U710 holders feature Ferraz Shawmut's unique adder-block design which can be snapped onto 1-, 2-, or 3-pole blocks to form multi-pole segmented blocks of as many poles as desired. A choice of box, screw, or pressure plate connectors is offered to fit a wide range of stranded or solid copper wire. All versions have verified dielectric strengths in excess of 2500V. A patented built-in DIN rail adapter on the U710 blocks adds further design versatility. All fuse clips are made of high conductivity tin-plated copper with spring reinforced clips.
Specifications
| Specification | Value |
|---|---|
| Features | All circuits up to 750 volts using semiconductor fuses for protection of small inverters, UPS systems, motor drives, etc. |
Features
- All circuits up to 750 volts using semiconductor fuses for protection of small inverters, UPS systems, motor drives, etc.
Ratings
- AC: 750 VAC, 30A (703), 50A (U705), 100A (U7100), Withstand Rating: 200kA I.R.
- UL Recognized Component, Guide IZLT2, File E52283
- CSA Certified, Class 6225, File 32169
- RoHS Compliant
Catalog Numbers
750 Volt Fuse Holders for 14 x 51mm Fuses (U705, 703)
| Catalog Number | Fuse Size (mm) | Ampacity Rating | Poles | Connector Type | Wire Range | Notes |
|---|---|---|---|---|---|---|
| U70505+ | 14 x 51 | 50 | Adder | Box | Al/Cu #2-14 | |
| U70506+ | 14 x 51 | 50 | 1 | Box | Al/Cu #2-14 | |
| U70507+ | 14 x 51 | 50 | 2 | Box | Al/Cu #2-14 | |
| U70508+ | 14 x 51 | 50 | 3 | Box | Al/Cu #2-14 | |
| 70315+ | 14 x 51 | 30 | Adder | Screw | Cu #10-14 | |
| 70316+ | 14 x 51 | 30 | 1 | Screw | Cu #10-14 | |
| 70317+ | 14 x 51 | 30 | 2 | Screw | Cu #10-14 | |
| 70318+ | 14 x 51 | 30 | 3 | Screw | Cu #10-14 | |
| 70325+ | 14 x 51 | 30 | Adder | Pressure plate | Cu #10-14 | |
| 70326+ | 14 x 51 | 30 | 1 | Pressure plate | Cu #10-14 | |
| 70327+ | 14 x 51 | 30 | 2 | Pressure plate | Cu #10-14 | |
| 70328+ | 14 x 51 | 30 | 3 | Pressure plate | Cu #10-14 | |
| 70355+ | 14 x 51 | 30 | Adder | Box | Cu #4-14 | copper box connectors and clips, for copper wires only |
| 70356+ | 14 x 51 | 30 | 1 | Box | Cu #4-14 | copper box connectors and clips, for copper wires only |
| 70357+ | 14 x 51 | 30 | 2 | Box | Cu #4-14 | copper box connectors and clips, for copper wires only |
| 70358+ | 14 x 51 | 30 | 3 | Box | Cu #4-14 | copper box connectors and clips, for copper wires only |
Accessories
| Catalog Number | Description |
|---|---|
| U09322+ | End barrier, to convert 30A adder pole to single pole |