Balmar APM-24 Alternator Protection Module, 24V

Alternator Protection Module APM24 - 24V

Alternators can be subjected to voltage spikes caused by lithium battery shutdowns, intermittent connections, and other over-voltage events. Balmar has introduced a robust Alternator Protection Module which helps to protect the alternators diodes and internal voltage regulator against spikes (clamping up to 60V) and sustained over-voltage conditions (beginning around 20V for the 12V version). The APM can absorb multiple surges of such energy and can absorb surges in excess of 200 amps without failure to continually protect your alternator. Visual and audible alarms indicate if the device has been compromised and needs replacement.

Balmar APM devices provide intelligent, robust, solid-state protection in a small easily mounted package at the rear of the alternator between the B+ and B- terminals. Balmar APM devices can be used to protect all alternator brands. Balmar APM devices meet ISO 16750-2 for Load Dump Protection and ISO 7637-2 for Surge Protection.

Balmar APM-24 Alternator Protection Module, 24V helps protect 24-volt alternators from voltage spikes and sustained over-voltage conditions that can occur during lithium battery shutdowns, intermittent connections, and other electrical events. Installed between the alternator’s B+ and B- terminals, this solid-state protection device helps safeguard alternator diodes and internal voltage regulators across a range of marine and vehicle electrical systems.

The Balmar APM-24 is designed to clamp voltage spikes up to 60 volts and can absorb multiple surges, including surges exceeding 200 amps, without failure. Visual and audible alarms indicate when the module has been compromised and requires replacement, helping provide clear notification that alternator protection is no longer active. Its compact housing supports convenient mounting at the rear of the alternator.

Balmar APM devices can be used with alternators from all brands and are designed to provide intelligent protection against load dump and surge events. The APM-24 meets ISO 16750-2 for Load Dump Protection and ISO 7637-2 for Surge Protection, making it a practical choice for customers seeking dedicated alternator surge protection for 24-volt systems.

Important: This product may not be returned to the original point of purchase. Please contact the manufacturer directly with any issues or concerns.

Key Features:

• 24-Volt Alternator Protection: Helps protect alternator diodes and internal voltage regulators from voltage spikes and sustained over-voltage conditions.
• High-Current Surge Absorption: Can absorb multiple surges, including events exceeding 200 amps, without failure.
• Voltage Clamping: Clamps voltage spikes up to 60 volts to help limit damaging electrical transients.
• Visual and Audible Alerts: Indicates when the module has been compromised and needs replacement.
• Broad Alternator Compatibility: Can be used to protect alternators from all brands.
• Recognized Protection Standards: Meets ISO 16750-2 for Load Dump Protection and ISO 7637-2 for Surge Protection.

Product Details:

• Brand: Balmar
• Part Number: APM-24
• Product Type: Alternator Protection Module
• System Voltage: 24V
• Installation Location: At the rear of the alternator between the B+ and B- terminals
• Protection: Alternator diode and internal voltage regulator protection
• Standards: ISO 16750-2 and ISO 7637-2

Choose the Balmar APM-24 for dedicated 24-volt alternator protection in systems exposed to electrical surges and over-voltage events.

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