ARCO Marine 48V Alternator Shield, 60-120V Alternator Protection - IP68
ARCO Marine 48V Alternator Shield, 60-120V Alternator Protection - IP68
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ARCO Marine 48V Alternator Shield, 60-120V Alternator Protection - IP68
The ARCO Zeus AZAS48 Alternator Shield is the 48V version of ARCO’s protection device for high-output charging systems. It helps limit the damaging voltage spikes that can occur when a battery connection is suddenly interrupted, including a lithium battery BMS shutdown.
The Shield clamps excess voltage and diverts it to ground to reduce stress on alternator diodes. A status light provides a quick indication of whether the device is operating or needs replacement.
Features and benefits
- Designed to reduce damage from battery-disconnect and load-dump events.
- Suitable for high-output charging installations, including systems with LiFePO4 battery banks.
- Green status light indicates protection; a red light means the Shield requires replacement.
- Tested to the ISO 16750-2 load-dump surge specification.
Technical details
- Product code: AZAS48
- System version: 48V
- Listed protection range: 60–120V
- Ingress rating: IP68
- Voltage: 48v
Compatibility and installation
Install at the alternator positive and ground posts following the ARCO instructions, with Shield terminals on top of the terminal stack. Protection has limits: severe surges can damage the device. CAN-bus-only voltage sensing during a cable disconnect is a specific limitation; follow ARCO’s regulator voltage-sensing guidance.
Related equipment & options
Match system voltage, alternator mounting, pulley and belt arrangement, regulation and battery requirements. Check control accessories and protection devices against the exact alternator system.
Explore related ranges
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