Description

The Littelfuse 32V Bolt-Down ZCASE® SMZ Series StudMount Fuse Holder reduces the need for wiring and parts

by allowing ZCASE® single high-current fuses to be directly

installed on an alternator, battery switch, or electrical relay.

Thanks to an insulted M8 stud on the busbar, the compatible

fuse (sold separately) and output cable with a ring terminal

(not included) can be assembled using the included standard

M8 nut. There’s no need to buy a specialized nylon nut.

The SMZ Series fuse holder is available with an M6, M8,

or M10 mounting hole to meet the requirements of various

applications. Various configurations, including with a protective

cover for the fuse only, with a protective cover for the fuse

and mounting stud, and without a cover, are available.

Applications

• Alternator, Battery Switch, or Electrical Relay Fusing

Features And Benefits

• Accepts Littelfuse high-current ZCASE® single bolt-down

M8-size fuses (sold separately)

• Available mounting hole sizes include M6, M8, and M10

• Up to 3 SMZ Series fuse holders can be stacked to protect

multiple circuits

• Space-saving design eliminates the need to wire in a

separate fuse holder or power distribution module (PDM)

• Tin-plated copper busbar offers corrosion resistance

• Red UL 94 V-0 rated cover is offered in 2 styles to provide

protection from accidental contact - one option covers the fuse

only, while the other option covers the fuse and the mounting stud

• Total continuous current should not exceed 400 amps per holder

Specifications

Agency Approval - Shock: ISO16750-3 Section 4.2.2.2

Agency Approval - Vibration: ISO16750-3 4.1.2.7

Current Rating Continuous: 300 Amps

Current Rating Max: 400 Amps

Current Rating Max Terminal: 400 Amps

Fuse Type: ZCASE

Humidity: SAE J1455 2006

10 ~ 98 RH

Input Terminals: M6, M8, M10 Stud Mount Hole

Mounting Method: M6, M8, M10 Stud Mount

Output Terminals: M8 Stud

Recommended Torque: M8 Nut: 14±2 Nm

Temperature in Celsius: Operation temperature: -40 °C ~ +105 °C

Storage temperature: -55 °C ~ 125 °C

Temperature in Fahrenheit: Operation temperature: -40 °F ~ +221 °F

Storage temperature: -67 °F ~ 257 °F

Max Voltage Rating: 32V

Application Notes Fuse must not exceed 75 of rated

current

UL rating belongs to the red cover and

not to the entire assembly