Description
The Cole Hersee 75907 is a high-current double-pole, single-throw (DPST) battery and field master switch. It disconnects the battery and the alternator or generator field circuit in one action, for vehicles and machinery with large starter and accessory loads.
Silver contacts are rated 300A continuous and 2000A intermittent on the main battery studs, with 20A continuous field terminals, and the switch suits 6V to 36V systems. The operating shaft is O-ring sealed for weather resistance.
An indexing pin aligns the switch and prevents rotation, and the 3/4″-24 mounting stem suits panels up to 6.5mm thick. Two 3/8″-24 battery studs and two 10-32 field studs are supplied.
Key Benefits
- 300A continuous, 2000A intermittent main rating
- Isolates battery and alternator/generator field together
- Silver contacts for high-current switching
- Weather resistant, O-ring sealed
- Indexing pin prevents rotation
- Suits 6V to 36V systems
Specifications
- Part numbers – 75907B, 75907BX
- Circuitry – DPST, On/Off, battery and field master
- Voltage – 6V–36V multivoltage
- Amperage – 2000A intermittent, 300A continuous; field 20A continuous
- Contacts – Silver
- Actuator – Lever
- Battery studs – 2 × 3/8″-24
- Field studs – 2 × 10-32
- Terminal stud material – Copper
- Maximum terminal torque – 8–10 Nm
- Mounting stem – 3/4″-24 thread, 13mm long
- Panel thickness – Up to 6.5mm
- Anti-rotation pin – Yes
- Lockout/tagout – With 24505 lockout kit
- Ingress protection – IP64
- Operating temperature – −40°C to +85°C
- Dimensions – H 110 × Ø 67 mm
- Application – Heavy duty, mining
Applications
- Mining haul trucks and heavy plant
- Heavy-duty trucks with high starter loads
- Construction and earthmoving equipment
- Emergency and specialist vehicles
