Electrical & Battery Disconnect Switches

Electrical disconnect switches have several important jobs in commercial 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.

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.
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Description
Price
Quantity
Item#:
44029
Manufacturer Item:
51-916
Manufacturer:
Pollak
Min. Order Qty:
1
Avail #:
26
1+
21.9100
10+
18.6200
50+
16.4300
EACH
Item#:
44032
Manufacturer Item:
51-303
Manufacturer:
Pollak
Min. Order Qty:
5
Avail #:
70
1+
1.1600
10+
0.9860
50+
0.8700
EACH
  • EATON's Bussmann Series 15250-1BLR Battery Disconnect Switch
  • Category: Disconnect Switches
  • Manufacturer: EATON
  • Switch Type: Mechanical
  • Amp Rating: 400A
  • Max Volts: 50V
  • Contact Action: On-Off
  • Mounting Bracket included
  • Terminal : 1/2-13 thread tin plated stud
  • Dimensions: 8" W x 4.19" H
  • 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
  • Recommended mounting on negative battery post
Item#:
44033
Manufacturer Item:
15250-1BLR
Manufacturer:
EATON
Min. Order Qty:
1
Avail #:
11
1+
191.3800
10+
172.2400
50+
162.6700
EACH
Item#:
44034
Manufacturer Item:
51-322
Manufacturer:
Pollak
Min. Order Qty:
5
Avail #:
43
1+
1.2700
10+
1.0700
50+
0.9525
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
Min. Order Qty:
1
Avail #:
103
 
RoHS Compliant
REACH 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-A Littelfuse Brand
Min. Order Qty:
1
Avail #:
56
 
RoHS Compliant
REACH Compliant
1+
40.7300
10+
36.6500
50+
34.6200
EACH
  • Pollak 52-613 Momentary Start Switches
  • Category: Push Button Switches
  • Manufacturer: Pollak
  • Component Type: Push-Button Start Switch
  • Contact Action: Off-(On)
  • Normally off
  • Contact Type: (2) 8" 14GA Leads
  • Current Ratings: 25A @ 6V, 15A @ 12V
  • Stem Dimensions: 1-1/16" L
  • PVC coating protects from dust and weather
Item#:
44046
Manufacturer Item:
52-613
Manufacturer:
Pollak
Min. Order Qty:
1
Avail #:
176
 
RoHS Compliant
1+
12.4100
10+
10.5400
50+
9.3000
EACH
  • Cole Hersee 880064 Terra 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
  • Pad lock-out for protection from tampering or when the electrical system is being serviced
  • 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#:
44058
Manufacturer Item:
880064
Manufacturer:
Cole Hersee-A Littelfuse Brand
Min. Order Qty:
1
Avail #:
38
 
RoHS Compliant
REACH Compliant
1+
29.1900
10+
24.8100
50+
21.8900
EACH
  • Battery isolator switch with detachable key
  • Protects operator from accidental actuation when power is shut-down for maintenance
  • Stop-key single circuit
  • Maximum load is 500 amps for 5 seconds at 12 volts DC
  • 100 amps continuous rating
  • Spare key 44077 and splash-proof cover 44078 also available
  • -13°F (-25°C) to 185°F (85°C)
Item#:
44075
Min. Order Qty:
1
Avail #:
771
 
RoHS Compliant
REACH Compliant
1+
10.3200
10+
8.2500
50+
5.1600
EACH
  • Cole Hersee 75920 Master Disconnect Switch
  • Category: Disconnect Switches
  • Manufacturer: Cole Hersee
  • Switch Type: Mechanical
  • Circuitry: SPST
  • Amp Rating: 400A
  • Voltage: 6V min to 36V MAX
  • Contact Action: On-Off
  • Contact Type: (2) 3/8" Studs
  • Waterproof and dust proof to IP67 (immersible)
  • Fits standard master disconnect mounting pattern
  • Protects vehicles and equipment against tampering, theft and battery drain
  • Protects from hazards during vehicle servicing, and can be locked-out or tagged-out
  • Provides an effective emergency power cut-off
Item#:
44076
Manufacturer Item:
75920
Manufacturer:
Cole Hersee-A Littelfuse Brand
Min. Order Qty:
1
Avail #:
58
 
RoHS Compliant
1+
40.5500
10+
34.4600
50+
30.4100
EACH
  • Spare key for battery isolator switch 44075
  • Waterproof cover 44078 also available
Item#:
44077
Min. Order Qty:
4
Avail #:
690
 
REACH Compliant
1+
0.4900
10+
0.4100
50+
0.3700
EACH
  • Waterproof cover for battery isolator and disconnect switch 44075
  • Spare key 44077 also available
Item#:
44078
Min. Order Qty:
4
Avail #:
1,902
 
REACH Compliant
1+
0.9200
10+
0.7800
50+
0.6900
EACH
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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, wire 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 a battery junction block inside or outside of 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 crimp butt connectors designed to keep moisture, dust and chemicals out of the electrical connection. No matter what your electrical project requires, you’re guaranteed to find all the parts you need at Waytek Wire.