Class T Fuse Blocks - 300V
The Class T Fuse Blocks - 300V is part of the Mersen (formerly Ferraz Shawmut) fuse holders & blocks line, distributed by Gross Automation.

Ferraz Shawmut Class T Fuse Blocks accommodate Class T fuses up to 600A. Insulators are either the durable, glass-filled polycarbonate (GFPC) or phenolic with verified dielectric strength in excess of 2500V. Ferraz Shawmut is the only manufacturer to offer Class T blocks with copper connectors.
Specifications
| Specification | Value |
|---|---|
| Ratings | AC: 300VAC: 30A, 60A, 100A, 200A, 400A, 600A, 600VAC: 30A, 60A, 100A, 200A, 400A, 600A, Withstand Rating: 200,000A Symmetrical; All fuse blocks meet the requirements of UL Std. 512; UL Listed, Guide IZLT, File E52283; UL Recognized Component, Guide IZLT2, File E52283; CSA Certified, Class 6225, File 32169; RoHS Compliant |
| Features | Unique integral DIN rail adapters for 600V, 30 & 60A blocks; Full barrier design (30 & 60A) increases pole to pole safety; Unique adder-block design (30 & 60A) for design flexibility; Spring reinforcing standard for all 30 & 60A clips; Features high conductivity copper alloy fuse clips; Cool running high amperage (100 - 600A) connectors; Copper connectors available 30 - 600A |
Features
- Unique integral DIN rail adapters for 600V, 30 & 60A blocks
- Full barrier design (30 & 60A) increases pole to pole safety
- Unique adder-block design (30 & 60A) for design flexibility
- Spring reinforcing standard for all 30 & 60A clips
- Features high conductivity copper alloy fuse clips
- Cool running high amperage (100 - 600A) connectors
- Copper connectors available 30 - 600A
Ratings
- AC: 300VAC: 30A, 60A, 100A, 200A, 400A, 600A, 600VAC: 30A, 60A, 100A, 200A, 400A, 600A, Withstand Rating: 200,000A Symmetrical
- All fuse blocks meet the requirements of UL Std. 512
- UL Listed, Guide IZLT, File E52283
- UL Recognized Component, Guide IZLT2, File E52283
- CSA Certified, Class 6225, File 32169
- RoHS Compliant
Catalog Numbers
300 Volt Class T Fuse Blocks, 30 to 600 Ampere
| Amps | Insulator | Poles | Connector Type | Wire Range | Catalog Number (Spring Reinforced) | Notes |
|---|---|---|---|---|---|---|
| 30 | GFPC | Adder | Box | Al/Cu #2-14 | 30305T+ | |
| 30 | GFPC | 1 | Box | Al/Cu #2-14 | 30306T+ | |
| 30 | GFPC | 2 | Box | Al/Cu #2-14 | 30307T+ | |
| 30 | GFPC | 3 | Box | Al/Cu #2-14 | 30308T+ | |
| 30 | GFPC | 4 | Box | Al/Cu #2-14 | 30309T+ | |
| 30 | GFPC | Adder | Screw | Cu #10-14 | 30315T+ | |
| 30 | GFPC | 1 | Screw | Cu #10-14 | 30316T+ | |
| 30 | GFPC | 2 | Screw | Cu #10-14 | 30317T+ | |
| 30 | GFPC | 3 | Screw | Cu #10-14 | 30318T+ | |
| 30 | GFPC | 4 | Screw | Cu #10-14 | 30319T+ | |
| 30 | GFPC | Adder | Pressure plate | Cu #10-14 | 30325T+ | |
| 30 | GFPC | 1 | Pressure plate | Cu #10-14 | 30326T+ | |
| 30 | GFPC | 2 | Pressure plate | Cu #10-14 | 30327T+ | |
| 30 | GFPC | 3 | Pressure plate | Cu #10-14 | 30328T+ | |
| 30 | GFPC | 4 | Pressure plate | Cu #10-14 | 30329T+ | |
| 30 | GFPC | Adder | Box | Cu #4-14 | 30355T+ | copper box connectors and clips, for copper wires only |
| 30 | GFPC | 1 | Box | Cu #4-14 | 30356T+ | copper box connectors and clips, for copper wires only |
| 30 | GFPC | 2 | Box | Cu #4-14 | 30357T+ | copper box connectors and clips, for copper wires only |
| 30 | GFPC | 3 | Box | Cu #4-14 | 30358T+ | copper box connectors and clips, for copper wires only |
| 30 | GFPC | 4 | Box | Cu #4-14 | 30359T+ | copper box connectors and clips, for copper wires only |
| 60 | GFPC | Adder | Screw | Cu #10-14 | 30615T+ | UL Component Recognized |
| 60 | GFPC | 1 | Screw | Cu #10-14 | 30616T+ | UL Component Recognized |
| 60 | GFPC | 2 | Screw | Cu #10-14 | 30617T+ | UL Component Recognized |
| 60 | GFPC | 3 | Screw | Cu #10-14 | 30618T+ | UL Component Recognized |
| 60 | GFPC | 4 | Screw | Cu #10-14 | 30619T+ | UL Component Recognized |
| 60 | GFPC | Adder | Box | Al/Cu #2-14 | 30605T+ | |
| 60 | GFPC | 1 | Box | Al/Cu #2-14 | 30606T+ | |
| 60 | GFPC | 2 | Box | Al/Cu #2-14 | 30607T+ | |
| 60 | GFPC | 3 | Box | Al/Cu #2-14 | 30608T+ | |
| 60 | GFPC | 4 | Box | Al/Cu #2-14 | 30609T+ | |
| 60 | GFPC | Adder | Box | Cu #4-14 | 30655T+ | copper box connectors and clips, for copper wires only |
| 60 | GFPC | 1 | Box | Cu #4-14 | 30656T+ | copper box connectors and clips, for copper wires only |
| 60 | GFPC | 2 | Box | Cu #4-14 | 30657T+ | copper box connectors and clips, for copper wires only |
| 60 | GFPC | 3 | Box | Cu #4-14 | 30658T+ | copper box connectors and clips, for copper wires only |
| 60 | GFPC | 4 | Box | Cu #4-14 | 30659T+ | copper box connectors and clips, for copper wires only |
| 100 | Phenolic | 1 | Box, side-clip | Al/Cu 2/0-#6 | 31031T+ | |
| 100 | Phenolic | 2 | Box, side-clip | Al/Cu 2/0-#6 | 31032T+ | |
| 100 | Phenolic | 3 | Box, side-clip | Al/Cu 2/0-#6 | 31033T+ | |
| 100 | Phenolic | 1 | Box | Cu 2/0-#12 | 31001T+ | copper box connectors, for copper wires only |
| 100 | Phenolic | 2 | Box | Cu 2/0-#12 | 31002T+ | copper box connectors, for copper wires only |
| 100 | Phenolic | 3 | Box | Cu 2/0-#12 | 31003T+ | copper box connectors, for copper wires only |
| 200 | Phenolic | 1 | Box | Al/Cu 350 kcmil-#6 | 32031T+ | |
| 200 | Phenolic | 3 | Box | Al/Cu 350 kcmil-#6 | 32033T+ | |
| 200 | Phenolic | 1 | Box | Cu 350 kcmil-#6 | 32051T+ | copper box connectors, for copper wires only |
| 200 | Phenolic | 3 | Box | Cu 350 kcmil-#6 | 32053T+ | copper box connectors, for copper wires only |
| 400 | Phenolic | 1 | Box | Al/Cu 600 kcmil-#2 | 34031T+ | |
| 400 | Phenolic | 3 | Box | Al/Cu 600 kcmil-#2 | 34033T+ | |
| 400 | Phenolic | 1 | Box | Cu 600 kcmil-#2 | 34051T+ | copper box connectors, for copper wires only |
| 400 | Phenolic | 3 | Box | Cu 600 kcmil-#2 | 34053T+ | copper box connectors, for copper wires only |
| 600 | Phenolic | 1 | Box | Al/Cu (2) 600 kcmil-#2 | 36031T+ | |
| 600 | Phenolic | 1 | Box | Cu (2) 600 kcmil-#2 | 36051T+ | copper box connectors, for copper wires only |