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Battery Disconnect Switches, Electrical Disconnect Switches, and More

Disconnect switches have several important jobs in commecrial vehicles and equipment. Battery disconnect switches cut-off electrical power, help protect against electrical fires and theft when equipment is not in use, provide a reliable shutdown of power during maintenance, and protect batteries from excessive drain.

1 - 12 of 43
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Description
Price
Quantity
  • Sealed master disconnect switch
  • Key operated
  • SPST (on-off) for battery circuit only
  • Does not disconnect alternator of generator
  • 3/8" stud terminals
  • Rated 180 amps for 6-36 volts DC
  • 1,000 amp in-rush rating
  • Once piece die-cast housing is 2 5/8" diameter and 4 3/8" long
  • Mounting stem is 3/4" diameter and 1/2" long
  • Lever operated disconnect switches 44030 and 44031 also available
Item#:
44029
Manufacturer Item:
51-916
Manufacturer:
Pollak
Avail #:
34.00
1+
21.9100
10+
18.6200
50+
16.4300
EACH
  • Sealed master disconnect switch
  • Lever operated
  • SPST (on-off) for battery circuit only
  • Does not disconnect alternator of generator
  • 3/8" stud terminals
  • Rated 180 amps for 6-36 volts DC
  • 1,000 amp in-rush rating
  • Once piece die-cast housing is 2 5/8" diameter and 4 3/8" long
  • Mounting stem is 3/4" diameter and 1/2" long
  • Key operated disconnect switch 44029 also available
Item#:
44030
Manufacturer Item:
51-902
Manufacturer:
Pollak
Avail #:
739.00
1+
24.5900
10+
20.9000
50+
18.4400
EACH
  • Sealed master disconnect switch
  • Lever operated
  • DPST (on-off) for battery alternator or generator circuit
  • Breaks alternator circuit (max of 20 amps) prior to disconnecting battery
  • 3/8" and #10-32 stud terminals
  • Rated 180 amps for 6-36 volts DC
  • 1,000 amp in-rush rating
  • Once piece die-cast housing is 2 5/8" diameter and 4 3/8" long
  • Mounting stem is 3/4" diameter and 1/2" long
  • Key operated disconnect switch 44029 also available
Item#:
44031
Manufacturer Item:
51-904
Manufacturer:
Pollak
Avail #:
19.00
1+
23.5600
10+
20.0200
50+
17.6700
EACH
  • Face plate for lever operated master disconnect switches with on-off designation 44030, 44031
  • Polished aluminum with black letters
Item#:
44032
Manufacturer Item:
51-303
Manufacturer:
Pollak
Avail #:
354.00
1+
1.1600
10+
0.9860
50+
0.8700
EACH
  • Battery disconnect switch
  • Bussmann 15250-1BLR
  • Non-fused current interrupt disconnect
  • Opens circuit between a battery and the complete electrical load
  • Max surge 2,000 amps on 20% duty, with 5 seconds on time
  • 1/2" brass, tin plated stud
  • 8" wide, 4.19" high
  • 302°F temp rating
  • 400 amps at 50 volts
  • Recommended mounting on negative battery post
Item#:
44033
Manufacturer Item:
15250-1BLR
Manufacturer:
Cooper Bussmann Eaton
Avail #:
4.00
1+
191.3800
10+
172.2400
50+
162.6700
EACH
  • Face plate for key operated disconnect switch 44029
  • Clearly shows on-off designation
  • Includes alignment hole
  • Polished aluminum with black letters
Item#:
44034
Manufacturer Item:
51-322
Manufacturer:
Pollak
Avail #:
47.00
1+
1.2700
10+
1.0700
50+
0.9525
EACH
  • Cole Hersee 75712-04 Reverse Rotary Switch
  • Category: Disconnect Switches
  • Manufacturer: Cole Hersee
  • Switch Type: Mechanical
  • Circuitry: DPDT
  • Amp Rating: 50A
  • Max Volts: 12V
  • Contact Action: (Reverse On)-Off-(On)
  • Contact Type: (4) 10-32 Screws
  • Spring returns to Off from both On positions
  • Allows forward/reverse motion of a motor without the need for a relay, especially for operation of tarps on trucks
  • Heavy Duty component parts: 3/32" thick terminals, silver-laminated contacts to resist arcing over a long working life
  • 2.09" diameter (53.1mm) steel case
  • Mounting stem 1/2"-20 thread
Item#:
44035
Manufacturer Item:
75712-04
Manufacturer:
Cole Hersee
Avail #:
0.00
 
RoHS Compliant
1+
32.1400
10+
30.5300
50+
28.6000
EACH
  • Emergency stop disconnect switch
  • Heavy duty strike off switch
  • Twist to connect, push to disconnect
  • -13°F (-25°C) to 185°F (85°)C temp rating
  • 250A at 24V
Item#:
44037
Avail #:
101.00
 
RoHS Compliant
1+
49.3100
10+
44.3700
50+
41.9100
EACH
  • Cole Hersee M-750 Master Battery Selector/Disconnect Switch
  • Category: Disconnect Switches
  • Manufacturer: Cole Hersee
  • Switch Type: Mechanical
  • Circuitry: SPST
  • Amp Ratings:
    • 310A for Continuous Duty
    • 500A for Intermittent Duty
  • Max Volts: 6-36V Variable
  • Contact Action: On-Off
  • Contact Type: (3) 3/8" Studs
  • Heavy-duty vaporproof, weather-, dust-, and corrosion-resistant
  • Marine UL Listed
  • Minimizes battery drain
  • Gives a reliable shutdown of power during maintenance
  • Helps protect against electrical fires, when the vehicle is not in use
  • Provides back-up starting power in an emergency
  • Allows use of the first, second or both batteries simultaneously
  • Can be surface mounted or installed through 3-5/16" diameter panel hole
Item#:
44043
Manufacturer Item:
M-750
Manufacturer:
Cole Hersee
Avail #:
34.00
 
RoHS Compliant
1+
40.7300
10+
36.6500
50+
34.6200
EACH
  • Stem is 1 1/16" long
  • 8" 14 gauge wire leads
  • PVC coating protects from dust and weather
  • Normally open switch
  • Rated 25 amps at 6 volts
  • 15 amps at 12 volts
Item#:
44046
Manufacturer Item:
52-613
Manufacturer:
Pollak
Avail #:
209.00
 
RoHS Compliant
1+
12.4100
10+
10.5400
50+
9.3000
EACH
  • Littelfuse Terra 880062 Battery Disconnect Switch
  • Category: Disconnect Switches
  • Manufacturer: Littelfuse Terra Power Systems
  • SR Series
  • Switch Type: Mechanical
  • Circuitry: SPST
  • Amp Rating: 300A
  • Max Volts: 32V
  • Contact Action: On-Off
  • Panel mount
  • Temp. Range: -58°F (-50°C) to 221°F (105°C)
  • Terminal stud size 3/8"-16 x 7/8" Long
  • Isolate high current DC circuits from battery sources
  • Stainless steel hardware and tin-plated copper studs
  • Ignition protection to SAE J1171 and ISO 8846 for installation in a battery box of on vehicles carrying hazardous loads
  • Internal components protected from harsh weather environments: IP66 & IP6K9K rated
Item#:
44056
Manufacturer Item:
880062
Manufacturer:
Littelfuse Terra Power Systems
Avail #:
38.00
1+
28.0900
10+
23.8700
50+
21.0600
EACH
  • Littelfuse Terra 880175 Battery Disconnect Switches
  • Category: Disconnect Switches
  • Manufacturer: Littelfuse Terra Power Systems
  • TR Series
  • Switch Type: Mechanical
  • Circuitry: DPST
  • Amp Rating: 500A
  • Max Volts: 48V
  • Contact Action: On-Off
  • Contact Type: (4) M12 Studs
  • Dual pole master battery disconnect switch ideal for cutting electrical system from the battery
  • Also used for applications needing switching of two circuits or switching both positive and negative
  • Switch two vehicle voltage circuits simultaneously (24V and 12V)
  • Direct lockout/tagout capability in the on or off position (padlock or hasp)
  • With an ingress protection to IP67 and IP69K, the master disconnect switch can mount in exposed locations on the vehicle
  • Drop-in replacement to existing competitive master disconnect switch
  • Ignition protected to SAE J1171 and ISO 8846 for installation in a battery box or on vehicles carrying hazardous loads
  • Turning the key to the right 90° will turn ON the switch, turning the knob/key to the left 90° will turn OFF the switch
  • Turning the key will simultaneously turn on or off both poles of the switch
  • High power connections are made via ring terminals or eyelets on cables to the device's terminal studs with markings adjacent to terminal studs for circuit 1, 2, 3, 4
Item#:
44057
Manufacturer Item:
880175 TR SERIES
Manufacturer:
Littelfuse Terra Power Systems
Avail #:
50.00
 
RoHS Compliant
1+
75.6800
10+
64.3200
50+
56.7600
EACH
1 - 12 of 43
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Commercial vehicle electrical systems are very demanding of batteries. Excessive drain happens even when the ignition switch is in the off position. Master disconnect switches are designed to power down the vehicle completely, protecting against parasitic battery drain. Cutting off the battery with a master battery disconnect switch removes all parasitic loads and small leakage currents that kill a battery over time. Disconnect switches also prevent injury of the technicians repairing electrical systems by disconnecting all power. Current drain also happens when the ignition is on, and the vehicle or equipment is idling, like in police cars, ambulances, trucks and delivery fleets. In this case, you can't disconnect the main power, because you still need the electrical system to run. Low voltage disconnect switches are an ideal option. They monitor the battery loads and automatically disconnect only non-critical loads from batteries to prevent excessive discharge. Safety is of the utmost importance when it comes to electrical applications, which is why Waytek offers a wide variety of safety related electrical products, connectors, and switches to help keep you and your equipment safe. In instances where the battery is not easily accessible or reaching the battery becomes dangerous, the remote mounting of a battery jumper terminal junction block inside or outside a vehicle allows for convenient and safe jump-starts and charging. For situations where you need to connect two parallel wires or one wire to multiple wires to complete your circuit consider using a butt connector, designed to keep moisture, dust and chemicals out of the electrical connection. No matter what you’re your electrical project requires you’re guaranteed to find all the parts you need at Waytekwire.com. For a complete list of disconnect switch related products, click on the links below. Junction Blocks Quick Disconnects Butt Connectors
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