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Littelfuse.com
© 2023 Littelfuse, Inc.
100323-A
Description
Cut all battery power to vehicle electrical systems with
the TR Series 32V 500A 2-Pole Waterproof Master Battery
Disconnect Switch. The dual-pole, single-throw (DPST)
switch works in heavy-duty truck, construction, emergency
vehicle, bus and transit, military, and agricultural
applications requiring the switching of two circuits or both
positive and negative.
You can feel condent mounting this master battery
disconnect switch in exposed locations thanks to its IP67
and IPX9K waterproof and dustproof ratings as well as its
high shock and vibration tolerance.
The dual battery disconnect switch can be used to
disconnect one or two batteries in either the positive or
negative line, and it can be used to switch two vehicle
voltage circuits simultaneously (24V and 12V).
Integrated lock-out/tag-out (LOTO) capability in either the
on or off position using a padlock or hasp (not included)
helps ensure personnel safety and vehicle security.
Web Resources
Download 2D print, installation guide and technical
resources at: littelfuse.com/TR
Applications
• Heavy Trucks
• Construction
• Emergency Vehicles
• Bus/Transit
• Military
Features and Benets
• Maximum continuous current of 500A per circuit with
two 4/0 input and two 4/0 output cables or 350A per
circuit with one 4/0 input and one 4/0 output cable
• IP67 and IPX9K waterproof and dustproof ratings enable
mounting in exposed locations on the vehicle
• Drop-in replacement for competitive master disconnect
switches when you need higher vibration (8 G) and
shock (30 G) capabilities
• Built-in lock-out/tag-out in the on or off position using
a padlock or hasp helps ensure the safety of service
personnel and the security of the vehicle
• Available with a black, yellow, or red knob
• Four tin-plated copper M12 x 25 mm terminal studs
• Two holes for M8 or 5/16”mounting
TR SERIES
32V 500A 2-POLE WATERPROOF
MASTER BATTERY DISCONNECT SWITCH
880175 880175-0001 880175-0002
Specications
Max Voltage Rating: 32VDC
Continuous Current Rating: 500A @ 32VDC with 4/0 cable
Inrush Amps Time Period: 30 Seconds ON MAX
Operating Temp Range: -40°C to +85°C
Ingress Protection: IP67 / IP-X9K
Ignition Protection: 94V-0
Mounting Method: Flange
Mounting Hole: Ø8.5mm
Housing: Black Thermoplastic
Ordering Information
PART
NUMBER
DESCRIPTION CIRCUITRY INPUT TERMINAL
880175 Master Battery Disconnect Switch with Black Knob DPST Stud M12X1.75 Tin Copper
880175-0001 Master Battery Disconnect Switch with Red Knob DPST Stud M12X1.75 Tin Copper
880175-0002 Master Battery Disconnect Switch with Yellow Knob DPST Stud M12X1.75 Tin Copper
880175S Master Battery Disconnect Switch with Black Knob - one switch per box DPST Stud M12X1.75 Tin Copper