Mersen FSM Series Multi-Meter Fuse, 1000VAC/1000VDC Ferrule

Mersen FSM Series Multi-Meter Fuse, 1000VAC/1000VDC Ferrule

Mersen's FSM Series is a true 1000VAC/1000VDC fuse engineered to protect both analog and digital multi-meters in power electronics metering and controls applications. Built by Ferraz Shawmut, part of the Mersen family, these fuses feature a Ferrule connection/terminal type, a Midget fuse class body, and a Fast-Acting speed characteristic sized in the industry-standard 10x35/10x38 form factor. This particular rating is 0.44A, one of three amperage ratings offered across the FSM line to cover the full range of multi-meter fusing requirements.

Key Features

• Compact Fuse Body: 10x35/10x38 dimensions for use in standard midget-class multi-meter fuse holders.
• Durable Construction: GMG body/insulating material paired with Tin-Plated Copper connection/terminal material for reliable, corrosion-resistant contact.
• Ferrule Connection: Ferrule connection/terminal type with Clip mounting for secure seating in standard multi-meter fuse blocks.
• Dual AC/DC Rating: Rated 1000V AC and 1000V DC (AC/DC) for use across analog and digital multi-meter platforms.
• Ampere Rating: 0.44A rating for precise circuit protection in power electronics metering and controls equipment.
• High Breaking Capacity: 20 kA AC max interrupting rating (I1) for dependable performance under fault conditions.
• Fast-Acting Speed: Fast-Acting characteristic supports quick response for sensitive metering circuits.
• Frequency Compatible: Rated for 50/60 Hz operation.

Technical Specifications

• Body/Insulating Material: GMG
• Connection/Terminal Type: Ferrule
• Connection/Terminal Material: Tin-Plated Copper
• Mounting: Clip
• AC or DC: AC/DC
• Ampere Rating: 0.44 A
• Frequency: 50/60 Hz
• Fuse Class: Midget
• Speed/Characteristic: Fast-Acting
• AC Max I.R./Breaking Capacity (I1): 20 kA

Typical Applications

• Analog and Digital Multi-Meter Protection
• Power Electronics Metering Equipment
• Instrumentation and Controls Market Devices
• Test Equipment and Panel Meter Circuits

Why Mersen?

Mersen's Ferraz Shawmut FSM Series fuses are purpose-built for the demanding requirements of multi-meter protection, combining a GMG insulating body, Tin-Plated Copper terminals, and a 1000VAC/1000VDC dual rating with a 20 kA breaking capacity in a compact 10x35/10x38 Midget-class body. The Fast-Acting design and Ferrule termination make these fuses a dependable choice for professionals specifying reliable overcurrent protection in metering and power electronics controls equipment.