Mersen 21037 Class H/K 100A Fuse Block, Copper Box Connector
The Mersen 21037 Class H/K 100A Fuse Block accommodates Class H, K and R power fuses rated up to 250V AC/DC, making it a dependable choice for panelboards and power distribution equipment. This fuse block platform is available in 2-Pole, 3-Pole, and Standard pole configurations, letting electrical professionals match the block to the circuit configuration required for the job while sharing the same core ratings and construction across every pole count. Built with a Box-type terminal in Tin-Plated Copper and a Glass Filled Polycarbonate insulating body verified to a dielectric strength in excess of 2500V, this fuse block delivers a secure, code-compliant connection for stranded or solid copper conductors. Rated for a 100A max fuse rating and a 2/0-#6 wiring range, it mounts via direct screw installation and uses a simple clip-in fuse installation method for fast servicing.
Key Features
- Pole Configuration: Available in 2-Pole, 3-Pole, and Standard versions on a shared platform.
- Max Fuse Rating: 100A, suitable for Class H, K and R 250V and 600V power fuses.
- Rated Voltage: 250V AC UL and 250V DC UL, AC/DC operation at 50/60 Hz.
- Wiring Range: 2/0-#6 for stranded or solid copper conductors.
- Connection/Terminal Type: Box connector in Tin-Plated Copper for high-conductivity, corrosion-resistant terminations.
- Body/Insulating Material: Glass Filled Polycarbonate with verified dielectric strength in excess of 2500V.
- Installation Mounting: Direct Screw Mount with a 120 lb-in torque rating.
- Fuse Installation Method: Clip-in, high-conductivity tin-plated copper fuse clips, spring reinforced at 100A and above.
Certifications & Compliance
- RoHS Compliant
Technical Specifications
- Connection/Terminal Type: Box
- ROHS Compliant: Yes
- Rated voltage AC UL: 250 V
- Rated voltage DC UL: 250 V
- Wiring range: 2/0-#6
- Max Fuse Rating: 100 A
- Installation Mounting: Direct Screw Mount
- Connection/Terminal Material: Tin-Plated Copper
- Torque Rating: 120 lb-in
- Ampere Rating: 100 A
- Frequency (Hz): 50/60 Hz
- AC or DC: AC/DC
- Fuse Installation Method: Clip-in
- Body/Insulating Material: Glass Filled Polycarbonate
- Pole Configurations Available: 2, 3, Standard
Typical Applications
- Panelboard and Load Center Fuse Protection
- Commercial and Industrial Power Distribution Equipment
- Class H, K and R Fuse Installations up to 100A
- Multipole Segmented Fuse Block Assemblies
- Overcurrent Protection for Copper or Aluminum Feeder Wiring
Why Mersen?
Mersen fuse blocks combine high-conductivity tin-plated copper clips with a Glass Filled Polycarbonate insulating body verified to dielectric strength in excess of 2500V, giving electrical professionals a dependable platform for Class H, K and R fuse protection across 2-Pole, 3-Pole, and Standard configurations. Spring reinforced clips at 100A and above, a 120 lb-in torque-rated Box connector, and RoHS compliance support reliable, code-compliant performance in panelboards and power distribution equipment.
Manufacturer Resources
Product Specs
- Rated voltage AC UL:
- 250 V
- Wiring range:
- 2/0-#6
- Max Fuse Rating:
- 100 A
- Installation Mounting:
- Direct Screw Mount
- Connection/Terminal Type:
- Box
- Connection/Terminal Material:
- Tin-Plated Copper
- Torque Rating:
- 120 lb-in
- Ampere Rating:
- 100 A
- ROHS Compliant:
- Yes
- Frequency (Hz):
- 50/60 Hz
- AC or DC:
- AC/DC
- Fuse Installation Method:
- Clip-in
- Rated voltage DC UL:
- 250 V
- Body/Insulating Material:
- Glass Filled Polycarbonate
- list_batch:
- MERSEN-20260825
- Product Type:
- Fuse Block
- Department:
- Electrical
- Product Group:
- Wiring Devices
- Product Subgroup:
- Fuse Holders & Blocks