ID
1001511
$ 200.62
1-2 weeks delivery time
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The Blue Sea 11003 is a heavy-duty HD-Series 3-position battery selector switch rated 400A continuous and 32V DC for switching isolated battery banks to all loads. Includes Alternator Field Disconnect (AFD), accepts two 4/0 AWG cables per terminal, and features 1/2″ (M12) studs. Cable clearance: 27.94 mm. Weight: 0.57–0.59 kg.
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Blue Sea 11003 – HD-Series 3-Position Battery Selector Switch with AFD, 400A, 32V DC
The Blue Sea 11003 HD-Series Battery Selector Switch is a heavy-duty marine power management switch engineered for high-current electrical systems. Designed to switch isolated battery banks to all onboard loads, it provides reliable distribution while maintaining electrical safety and system stability.
This selector switch includes Alternator Field Disconnect (AFD) protection, which safeguards alternator diodes if the switch is turned to OFF while the engine is running. Built for harsh marine environments, it is ignition protected for safe installation on gasoline-powered boats and supports both surface and rear panel mounting.
Key Features
- Heavy-duty HD-Series construction
- 3-position selector switch for battery bank control
- Integrated Alternator Field Disconnect (AFD)
- Accepts two 4/0 AWG cables per terminal
- Tinned copper studs for corrosion resistance
- Ignition protected for marine engine compartments
Technical Specifications
Model 11003 Switch Type Selector – 3 Position Maximum Voltage 32V DC Continuous Rating 400A Intermittent Rating 700A (5 min) Starting Rating (30 sec) 1600A Switching Rating 25A Battery Inputs 2 Terminal Stud Size 1/2″ (M12) Stud Material Tinned Copper Recommended Cable Size 4/0 AWG (120 mm²) Cable Quantity per Terminal Two cables Cable Clearance 1.10 in (27.94 mm) Mounting Holes Accept 1/4″ (M6) screws Terminal Torque 220 in-lb (24.86 Nm) Weight 1.25–1.30 lb (0.57–0.59 kg)
Compliance & Certifications
- ABYC E-11 compliant
- CE marked
- Ignition protected
- IP66 rated
- ISO 8846
- SAE J1171
- UL 1107
- UL 1500
Optional Accessories
- 7902 – Battery Switch ICON Label Kit
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