BMM modular supplemental (midget) ferrule fuse blocks

1-, 2- and 3-Pole 600V Modular Fuse Blocks for 13/32" x 1-1/2" (10x38mm) Midget Fuses

Modular style fuse blocks for use with supplementary 13/32” x 1-1/2” (10x38mm) fuses.

These new Bussmann fuse blocks contain multiple features to add versatility, reduce labor and enhance safety of any panel design.

1-, 2-, 3-pole units factory assembled

Single-pole units snap together to create desired number of poles

Data Sheet # 10241

Product Profile # 10307

Drawing Downloads (PDF, DXF/DWG, IGS, STEP)

Catalog Number BMM603-1SQ, BMM603-2SQ, BMM603-3SQ, BMM603-1PQ, BMM603-2PQ, BMM603-3PQ, BMM603-1C, BMM603-2C, BMM603-3C, BCCMM603-3SQ (Control transformer block), BCCMM603-3PQ (Control transformer block)
Volts 600V
Amps up to 30A
Withstand 200kA RMS Sym.
Dimensions See data sheet # 10241
Agency Information - Blocks - UL Recognized E14853 - IZLT2
- CSA Certified 47235-6225-01
- CE
- RoHS Compliant
- Conflict mineral free
- Reach declariation available upon request
Agency Information - Covers - Covers are included in the overall UL Listing/Recognition
- IP20 finger-safe
- RoHS Compliant
- Reach declariation available upon request
Flammability Ratings - Blocks: UL 94V0, self-extinguishing
- Covers: UL 94HB, self-extinguishing
Operating and Storage Temperature Range - Blocks -40°C to +120°C
- Non-Indicating covers -40°C to +120°C
- Indicating covers -20°C to +90°C (requires minimum 90Vac/dc and closed circuit to illuminate)


  • Available in 1-, 2- and 3-pole configurations to meet stocking requirements.
  • Blocks are fully modular with a snap-together design that provides tool-less assembly of multiple pole blocks at point-of-use to reduce inventory and save assembly time and labor.
  • DIN-Rail and panel mount versatility allows one product to be used for multiple applications, lowering inventory cost. Compact footprint consumes minimal panel space.
  • Optional see-through cover enhances safety with IP20 finger-safe protection, lockout/tagout capability and open circuit indication.
  • Easy circuit identification with available universal marker labels for fuse block covers.
  • Tin-plated bimetallic copper fuse clips deliver superior fatigue resistance compared to traditional spring brass.
  • Terminal options to meet application needs including 1/4” spade quick connect terminals for faster panel assembly.

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