Class J power distribution fuse blocks up to 400 amps

Combination power distribution block and fuse block

New, Bussmann series Class J fuse block features power distribution capability.

This patented design simplifies panel layouts and uses up to 65 percent less panel space.

Additionally, it lowers inventory costs while reducing installation time and labor by an average of 33 percent.

Furthermore, this design uses fewer wire connections, reducing watts loss and overall operating temperature of the panel.

Features and benefits

  • Combination power distribution block and fuse block reduces wire connections and total panel components, using up to 57 percent less panel space and reducing installation time and labor by an average of 33 percent when compared with traditional fuse block/power distribution block solutions.
  • A 200,000 amps withstand rating helps achieve a higher assembly short-circuit current rating (SCCR) for compliance with NEC® sections 110.10, 409.110(4), 409.22, 440.4(B), 670.3(A)(4) and 670.5.
  • Optional see-through cover enhances safety with IP20 finger-safe protection, lockout/tagout capability and open circuit indication.
  • Available in 1-, 2- and 3-pole configurations to meet stocking requirements.
  • To reduce inventory, assembly time and labor, modular single-pole blocks snap-together for tool-less assembly of multiple poles at point of use.
  • DIN-Rail and panel mount versatility allows one product to be used for multiple applications without incurring additional inventory cost.

Product profile no. 10183

Data sheet no. 10192

February Consulting-Specifying Engineer® Magazine website article

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

Save money, component count, time and labor...

Combining the fuse block and power distribution block into one assembly reduces the wire connections, labor and cost associated with the traditional fuse block / power distribution block combination.

 

 

New solution -
fuse/power distribution
block combination

 

 

Traditional solution - separate fuse
and power distribution blocks

Catalog number Optional covers Fuse range (A) Poles Lineside Loadside
JM60030-_MW14 N/A Up to 30 1, 2, 3 (1) 2-14 AWG Cu, 2-8 AWG Al (4) 8-14 AWG Cu, 8-10 AWG Al, (8)** 12-14 AWG Cu
JM60060-_MW12† CVR-J-60060, CVRI-J-60060*

35-60 1, 2, 3 (1) 2-14 AWG Cu, 2-8 AWG Al (4) 8-14 AWG Cu, 8-10 AWG Al, (8)** 12-14 AWG Cu
JM60060-_MW14† 35-60 1, 2, 3 (1) 2-14 AWG Cu, 2-8 AWG Al (4) 8-14 AWG Cu, 8-10 AWG Al, (8)** 12-14 AWG Cu
JM60060-_MW24 35-60 1, 2, 3 (1) 2-14 AWG Cu, 2-8 AWG Al (4) 8-14 AWG Cu, 8-10 AWG Al, (8)** 12-14 AWG Cu
JM60100-_MW14 CVR-J-60100-M, CVRI-J-60100-M* 70-100 1, 2, 3 (1) 1/0 - 14 AWG Cu/Al (4) 4-14 AWG Cu, 4-8 AWG Al, (8)** 10-14 AWG Cu
JM60200-_MW16 CVR-J-60200-M, CVRI-J-60200-M* 110-200 1, 2, 3 (1) 250kcmil - 6 AWG Cu/Al (6) 4 - 14 AWG Cu, 4-8 AWG Al, (12)** 10-14 AWG Cu
JM60400-_MW16, JM60400-_MW26 CVR-J-60400-MCVRI-J-60400-M* 225-400 1, 2, 3 (1) 600kcmil - 4 AWG Cu/Al, (2) 350kcmil - 6 AWG Cu/Al (6) 2 - 14 AWG Cu, 2-8 AWG Al, (12)** 8-14 AWG Cu, 8 AWG Al
† Rated for use with 75°C Cu/Al conductors. Conductors with higher temperature ratings may be used with appropriate derating.
* With open fuse indication.
** Dual wire rated lugs with same size wire.