M-Series 300A Battery Switch Off/On Key Actuator
Sealed Against Dust & Water Intrusion – To ensure reliable circuit protection for the life of the electrical system installation.
Ignition Protected – Safe for installation in closed compartments with potential explosive gases.
Serrated Flange Lock Nuts – Improves resistance to cable terminal loosening in high-vibration environments.
Flexible Mounting Options – Allow for multiple mounting configurations and a variety of installation types.
Harsh Environment Design – With stainless steel hardware, serrated flange nuts, and high-temperature materials.
Specifications:
- Maximum Voltage (Single Circuit): 48 Vdc
- Maximum Voltage (Selector / Dual Circuit): 32 Vdc
- Stud Size And Thread: 3/8”-16
- Terminal Stud Torque: 120 in-lbs (13.6 N-m)
- Ring Terminal Size Acceptance: 3/8” (M10)
- Mounting Holes: 10 Screw
- Live Switching Rating: 25 Amps
- Ignition Protection Rating: SAE J1171 / ISO 8846
- Bulkhead / Panel – Mounting Hole Size: 2-5/8″ / 2-5/16″
- Cable Size to Meet Rating: 4/0 AWG
Quick Guide (pdf)

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