FB60J30B1 Mersen Class J Fuse Holder Block, 30 Amp, 600 Volt, Single Pole, Box Connector

FB60J30B1 Mersen Class J Fuse Holder Block, 30 Amp, 600 Volt, Single Pole, Box Connector

Need a safe, organized place to mount a single Class J fuse of 30 amps or less? The Mersen FB60J30B1 is a fuse block, also called a fuse holder or fuse base, that holds one fuse and uses box-style connectors for your wiring.

This block handles systems up to 600 volts AC or DC and has a 200,000 amp (200kA) short-circuit current rating, which is the maximum available fault current it is rated for. Mersen lists it as UL Listed and CSA certified, and it can be mounted on standard DIN rail or screwed directly to a panel.

Common Applications

• Branch circuits
• Control panels
• Load centers
• Lighting, heating, and general loads

Key Features

• One fuse, one pole: Holds a single Class J fuse rated up to 30 amps.
• Easy wiring: Box connectors accept 2-14 AWG copper or aluminum wire.
• Mount it your way: Install on DIN rail or with screws directly to a flat surface.
• Safety features: Built-in lockout/tagout spot, plus IP20 protection when a Mersen FBC60J30 or FBC60J30I cover is added.
• Sturdy build: Glass-filled polycarbonate body with tin-plated copper connectors.

Specifications

• Manufacturer: Mersen
• Catalog Number: FB60J30B1
• Product Type: Class J fuse block, Generation 2 open style
• Fuse Class: J
• Ampere Rating: 30A (maximum fuse rating 30A)
• Voltage Rating (UL): 600VAC / 600VDC
• Frequency: 50/60 Hz
• Short-Circuit Current Rating: 200kA
• Number of Poles: 1
• Connector Type: Box
• Connector Material: Tin-plated copper
• Wire Range: 2-14 AWG, Cu or Al
• Terminal Torque: 35 in-lbs (4.0 N-m)
• Body Material: Glass-filled polycarbonate
• Mounting: DIN rail or direct screw mount
• Dead Front Covers: FBC60J30 (without indicator), FBC60J30I (with indicator)
• Approvals: UL Listed (Guide IZLT, File E52283), CSA Certified (Class 6225, File 32169), RoHS compliant

Product Identification

• UPC/GTIN: 0782001505066
• Product Dimensions: 30 mm W x 105.4 mm L x 63.8 mm H (1.18 in x 4.15 in x 2.51 in)
• Product Weight: 0.0816 kg (0.18 lb)

FAQ

What does a Class J fuse block do?
It holds a Class J fuse securely and gives you terminals to land the incoming and outgoing wires. The FB60J30B1 holds one Class J fuse rated up to 30 amps.

Can the FB60J30B1 be used on DC circuits?
Yes. Mersen lists UL voltage ratings of 600 volts DC and 600 volts AC for this block.

Is there a cover for this fuse block?
Mersen offers two dead front covers for it, the FBC60J30 and the FBC60J30I, which adds an indicator. With either cover installed, the block is rated IP20, meaning fingers are kept away from live parts.

How do I know I have the right version?
Look for catalog number FB60J30B1 and UPC 0782001505066. In this catalog number, B means box connector and 1 means one pole; Mersen's S and P versions use screw and pressure plate connectors instead.

What size wire can I connect?
The box connector accepts copper or aluminum wire from 14 AWG up to 2 AWG.