Blue Sea BS 11003 "Heavy Duty" 3-Position Battery Main Switch with Alternator Field Disconnect (AFD) for Diesel and Gasoline Engines. The switch is ignition protected and suitable for two batteries / battery banks.
KEY FEATURES
- Switches isolated battery banks to all loads
- Ignition protected for installation aboard gasoline powered boats
- Case design allows surface mounting or panel mounting
TECHNICAL DETAILS
- Switch Positions: 3 - Batt.1/Batt.2/Off
- Battery Combination: no
- Color: gray
- Alternator Field Disconnect (AFD): Yes (Disconnect switch protects diodes in the alternator if the switch is switched to OFF when the engine is running. If the disconnect switch is not used to protect the alternator, an LED can be connected to the AFD terminals to indicate when the battery switch is in any position other than OFF.)
- Maximum Voltage: 32V DC
- Terminal Stud Torque: 24.86 Nm
- Continuous Current: 500 Amps.
- Peak Current: 700 Amps (5 Min.)
- Cranking Current 10 Sec.: 2750 Amps. Current required by the starter before starting the engine. Cranking current varies significantly during the starting cycle. Initially, there is a large current surge required to overcome the engine's inertia and compression. This surge can be two to four times the average cranking current. Cranking current is used for sizing batteries, cables, and battery switches.
- Cranking Current 30 Sec.: 1600 Amps. Current required by the starter before starting the engine. Cranking current varies significantly during the starting cycle. Initially, there is a large current surge required to overcome the engine's inertia and compression. This surge can be two to four times the average cranking current. Cranking current is used for sizing batteries, cables, and battery switches.
- Cranking Current over 1 Minute: 1150 Amps. The maximum current for which the switch is designed, if the starting phase does not exceed one minute when starting an engine.
- Battery Input: 2
- Cable Clearance for 4/0 AWG Cable: 27.94 mm
- Recommended Cable Thickness: 4/0 AWG (120mm²)
- Recommended Number of Cables: 2 cables / terminal
- Mounting Holes: 1/4" (M6) screw
- Terminal Stud Size: 1/2" (M12)
- Weight: 0.59 kg