Marathon Special Products 1MS103 Data Sheet

Product Data Sheet

1MS103

Semi Conductor Fuse Holder
400 Amps, 600 Volts AC/DC

Wire Range:

(2) 250 kcmil - #6 AWG Copper or Aluminum

Electrical Ratings:

• 400A max (amperage rating based on maximum fuse rating for that physical size)

• 600 Volts AC/DC

• Approved for 200,000 Amp Withstand Rating
Mechanical Ratings:

• Insulator base temperature rating: -40°C/F to 150°C (302°F) UL RTI

• Flammability rating of insulator base: UL 94 V-0

• Use outside these ratings needs to be judged in the end-use application.

Materials:

• Connector: High conductivity aluminum, tin plated

• Insulator base: General Phenolic

• Terminal set screws: Aluminum, tin plated and Steel, nickel plated

• Connector mounting screws: Steel, zinc plated

• Hex-head bolts: Steel, nickel plated (provided unassembled)

• Belleville washers: Steel, zinc plated (provided unassembled)

Agency Approvals:

• UL Recognized, Fuseholder standards UL 4248-1 and 4248.1-07

• UL File No. IZLT2.E35113

• cURus

• CE compliant to IEC 60947-1

• RoHS Compliant

Wire Range:

Wire Torque Copper Wire Stranding Classes - Numbe r of Conduct o rs

Size

25 0 kcm i l 31 .1 2 75 1 1

4/0 31.1 275 1 1
3/0 31.1 275 1 1
2/0 31.1 275 1 1
1/0 31.1 275 1 1

131.1275 1 1

231.1275 1 1

431.1275 1 1

631.1275 1 1

Aluminum stranded wire range: 250 kcmil – #6 AWG

• Recommended fuse torque (on bolt): 13.6 N-m (120 in. lbs.)

• Wire strip length: 1 1/8”

• Hex key required: 3/8”
Mounting:

• Panel mountable: #10 fastener, Torque to 2.8 - 3.4 N-m (25-30 in. lbs)

N-m In. lbs Solid Class B Class C

PDS 0192 REV D 11/22/11