-€30.08

RCB+ adjustable coupling relay

Name: RCB+ adjustable coupling relay
Brand: Cristec

Ref. CR-RCB-ADJ-120A

The RCB+ 50 to 120A adjustable coupling relay automatically couples the engine and service batteries when the alternator is running. Compatible with 12V and 24V, it limits the current to the service battery to preserve the starting load. Compact, fanless and designed for nautical applications, it provides effective on-board battery management.

€166.58 Tax included

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€196.67

SALE until 13/07/2026 🔥

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Reference CR-RCB-ADJ-120A

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Description

CRISTEC - RCB+ adjustable coupling relay 50 to 120A - Intelligent battery management

Designed for 12V or 24V marine installations, the RCB+ adjustable coupling relay automates coupling between engine and service batteries when the alternator is running.

Its adjustable current-limiting function protects the starter battery, while optimizing on-board recharging of the service battery.


	Battery coupling The RCB+ coupling relay is designed to automatically connect a starter battery and a service battery when the alternator is running. This automatic management simplifies on-board electrical installation and avoids unnecessary strain on the engine battery when the engine is switched off. Automatic battery coupling 12V and 24V compatible Ideal for alternators in service Suitable for boating applications The product monitors input and output voltage thresholds to enable or disable coupling at the right moment. This makes it ideal for boats requiring simple, reliable and secure management of two separate battery banks.

Adjustable current The great advantage of the RCB+ is its potentiometer-adjustable current limiting. It allows you to adjust the current sent to the service battery from 30A to 120A, so as to retain a sufficient share of the alternator current for recharging the starter battery. Setting from 30A to 120A Engine battery protection Better control of load distribution Simple on-board operation This principle is particularly useful on marine installations, where priority must be given to the engine battery. The relay helps to better manage available energy without adding a heavy or complex solution.