M-284 SERIES
36 V 175 A SINGLE-POLE BRASS-BODY MARINE
BATTERY DISCONNECT SWITCH
Specifications
Current Rating Continuous in Amps:
Max Voltage Rating
Circuitry:
175A
36V
SPST
Housing:
Brass
Input Terminals:
Mounting Method:
Mounting Hole:
Mounting Stem:
Hardware:
2x "B" Stud: 3/8"-24
Through-Hole
Ø20.62
3/4" - 16
M-284-01
M-284-02
M-284-09-BP
2x Hex Nut 3/8"-24
2x Split LockWasher 3/8"
Operating Temperature:
40 °C to 85 °C
Description
The M-284 Series 36 V 175 A Marine Battery Disconnect
Switch is a marine-grade, brass-body master battery
disconnect switch for boat and commercial vehicle
applications that features single-pole, single-throw (SPST)
circuitry.
Applications
• Commercial Marine
• Heavy-DutyTrucks
• Buses &Transit
• Boats
• Emergency Vehicles
Disconnecting a boat or vehicle battery from the electrical
system with a master battery disconnect switch prevents
potential thermal events and ensures the system is shut
down during maintenance or an emergency. In addition,
using a manual battery disconnect switch during periods
of inactivity, such as when a boat or vehicle is stored,
prevents parasitic loads from draining the battery.
Features and Benefits
• Marine-grade, brass housing enables use in boating and
commercial marine and vehicle applications
• 175 A continuous current rating
• Rated for 1000 A intermittent current at 15 seconds on,
5 minutes off or 800 A intermittent current at 15 seconds
on, 5 minutes off, depending on the model
This Cole Hersee brand disconnect switch is available in a
variety of configurations, including UL Listed models and
sealed models.
• Select models of the marine battery kill switch feature an
O-ring seal at the mounting stem and a gasket seal at the
terminal insulator
Web Resources
Download 2D print, installation guide and technical
• Copper studs or silver-laminated brass studs, which offer
high conductivity and low contact resistance
resources at: littelfuse.com/M-284
• Available as a UL Listed model
Ordering Information
INTERMITTENT CURRENT
PART
DESCRIPTION
NUMBER
INPUT TERMINAL
ACTUATOR
IN AMPS (AMPS)
M-284
Battery Disconnect Switch with Copper Studs
1000A
Copper Stud 3/8"-24
Brass Stud 3/8"-24
Lever
Lever
M-284-01
Battery Disconnect Switch with Silver-Plated Brass Studs - UL Listed
800A
800A
Battery Disconnect Switch with Silver-Plated Brass Studs - UL Listed - Blister
Pack
M-284-01-BP
Brass Stud 3/8"-24
Lever
M-284-01-BX Battery Disconnect Switch with Silver-Plated Brass Studs - UL Listed - Boxed
800A
1000A
1000A
1000A
1000A
1000A
1000A
1000A
Brass Stud 3/8"-24
Brass Stud 3/8"-24
Brass Stud 3/8"-24
Copper Stud 3/8"-24
Brass Stud 3/8"-24
Brass Stud 3/8"-24
Copper Stud 3/8"-24
Copper Stud 3/8"-24
Lever
Lever
Lever
Lever
Lever
Lever
Lever
Lever
M-284-02
M-284-02-BX
M-284-09-BP
M-284-A
Battery Disconnect Switch with Silver-Plated Brass Studs - Sealed
Battery Disconnect Switch with Silver-Plated Brass Studs- Sealed - Boxed
Battery Disconnect Switch with Copper Studs & Faceplate - Blister Pack
Battery Disconnect Switch with Silver-Plated Brass Studs
M-284-A-BX
M-284-BP
Battery Disconnect Switch with Silver-Plated Brass Studs - Boxed
Battery Disconnect Switch with Copper Studs - Blister Pack
Battery Disconnect Switch with Copper Studs Boxed
M-284-BX
Littelfuse.com
© 2023 Littelfuse, Inc.
050323-A
1