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Mastervolt

77030500

Multifunction Contact Output

The Mastervolt Multipurpose Contact Output is a programmable DC relay for the MasterBus network. It allows control of a 12/24 V device up to 1 A (fan, alarm, generator contactor) based on configured events. Delivery includes the module, screw terminal block, MasterBus cable, MasterBus terminator, and user manual.

Price excl. import taxesBenefit from the professional rate

£127.58 GBP

£127.58 GBP ~~£157.02 GBP~~

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Prices exclude import taxes. DAP delivery: import taxes are paid on delivery.

Available in stock

Free pickup point from €150 in France
Pickup at Skysat possible

Custom installation

Trust Skysat to install the equipment on board

Request a quote

Installers near you

thanks to our network of approved installers

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Support service

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Technical specifications

Nominal voltage	30 V
Amperage	1.0
Number of circuits	1.0
Number of poles	1 pole
Supported battery banks	0.0
Battery switch type	Not applicable
Battery switch control method	Not applicable
Breaker reset type	Not applicable
Circuit breaker type	Not applicable
DVSR continuous current rating	0.0
Mounting type	DIN rail
IP rating	IP21
Display type	Not applicable
Wired network	MasterBus
Certifications	CE
Dimensions (W x H x D)	66 x 78 x 32
Weight	0.08
Contact configuration	NO-C-NC
DIN rail size compatible	30
Display languages	English, Dutch, German, French, Spanish, Italian, Danish, Swedish, Finnish, Norwegian
LED status indicator	Yes
Manual included	Yes
MasterBus cable included	Yes
MasterBus connector type	MasterBus proprietary connector
MasterBus powering	No
MasterBus power consumption (mW)	132
MasterBus terminator included	Yes
Product depth	32
Product height	78
Product type	Multifunction contact output
Net weight of the product	80
Packaged product weight	0.3
Product width	66
Maximum relay voltage	30
Screw terminal included	Yes
Storage temperature range	-30 to 70
Warranty	2

Detailed description

The Multipurpose Contact Output from Mastervolt is a DC relay controlled via the MasterBus data bus. It allows remote control of 12/24 V equipment up to 1 A, such as a fan, a sound alarm, or a generator, based on configurable network events. This module is a simple and reliable solution for adding automated control functions to your onboard electrical system.

A programmable relay for onboard automation

Unlike a standard relay, this module integrates into the MasterBus network and can be controlled by any compatible device (Mass charger, MasterShunt, DC Distribution). It enables automation scenarios: triggering a battery compartment fan when the charger is in fault, activating a sound alarm in case of low battery level, or controlling a generator contactor. The Multipurpose Contact Output offers timing functions (min/max operating time) and a one-second start pulse, essential for certain generators. It stands out from more comprehensive I/O modules (such as the MasterBus Analog Interface) due to its simplicity and low cost, being dedicated to a single switching function.

Simplified installation and integration

The module mounts on a 30 mm DIN rail and connects to the MasterBus network via the supplied cable and connector. Its compact size (66 x 78 x 32 mm) and low power consumption (132 mW) make it discreet and economical. Installation consists of connecting the data bus and wiring the circuit to be controlled to the screw terminal block (dry contact NO/NC/COM, 1 A / 30 V DC). Event configuration is performed via a MasterBus display or the MasterAdjust software. The package includes the screw terminal block, MasterBus cable, MasterBus terminator, and user manual.

Documentation

Type	Nom
	FR - Manuel d'utilisation - Sortie Contact Multifonctions
	FR - Manuel d'utilisation - Sortie Contact Multifonctions
	EN - Manuel d'utilisation et d'installation - Sortie Contact Multifonctions

Expert opinion

Pol CONIN

Digital Manager

« A compact smart relay for the MasterBus network »

The Multipurpose Contact Output is a small, highly practical module for adding a controlled switching function to a MasterBus network. It is not a groundbreaking product, but rather a reliable and proven building block. Its main advantage is its simplicity: it replaces a conventional relay with programmable control logic. It is ideal for simple tasks such as managing a battery compartment fan, activating an alarm, or controlling a small contactor. Note that its dry contact is limited to 1 A and is not designed to switch high power directly. For this purpose, it should be used as a pilot for a more powerful contactor. It is an excellent complement to Mass chargers and MasterShunt battery monitors for creating basic automation without breaking the bank.

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Multifunction Contact Output

£127.58 GBP

£127.58 GBP ~~£157.02 GBP~~

Frequently Asked Questions

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How to install the Multipurpose Contact Output on my MasterBus network?

Installing the Multipurpose Contact Output is straightforward. It mounts on a 30 mm DIN rail. Connect the MasterBus cables to the dedicated connector, then wire your equipment (fan, alarm, etc.) to the screw terminal, following the labels: input (1), normally closed output (2), and normally open output (3). The relay’s maximum current is 1 A.

Is this module compatible with all Mastervolt chargers?

Yes, the Multipurpose Contact Output is compatible with Mastervolt chargers equipped with the MasterBus data bus, such as the ChargeMaster or the Mass Charger. It can be configured as a charger status interface (CSI) to trigger an action in case of a fault.

What is the maximum voltage the relay contact can handle?

The potential-free contact of the Multipurpose Contact Output can support a maximum voltage of 30 V DC and a maximum current of 1 A. It is designed for 12 V or 24 V applications.

Can I use this module to control a generator set?

Yes, this is a typical use case. The Multipurpose Contact Output can be configured to start and stop a generator. It includes a 1-second start pulse option required for some generators, as well as minimum and maximum runtime delays.

What types of equipment can I control with this contact output?

You can control any 12/24 V device drawing less than 1 A, such as a battery compartment fan, a buzzer, an alarm, a generator contactor, or a power supply. The relay is a dry contact (NO/NC/COM).

How to set the minimum operating time of the relay?

Configuration is done via the MasterBus menu. You can enable the 'Min. runtime' option and set the duration between 15 minutes and 45 days. The default setting is 15 minutes.

Is this module compatible with the MasterShunt?

Yes, the Multipurpose Contact Output is compatible with the MasterShunt. You can, for example, configure an event so the relay activates when the battery level is low, to start a generator.

What is the IP protection rating of this product?

The Multipurpose Contact Output has an IP 21 protection rating, meaning it is protected against access to hazardous parts by a finger and against vertically falling water droplets. It is suitable for installation inside the boat, in a dry location.

Can I change the device name in the MasterBus network?

Yes, you can customize the device name. By default, it is called 'DC Relay', but you can rename it with up to 12 characters via the configuration menu.

What does the LED indicator on the module mean?

The communication LED lights up when the relay state is 'activated'. It allows you to visually check if the relay is operating.

Can the Multipurpose Contact Output be used with a 24 V system?

Yes, the module is designed for 12 V and 24 V systems. The relay contact supports up to 30 V DC, making it perfectly suited for 24 V installations.

How to reset the Multipurpose Contact Output to factory settings?

Factory reset is typically performed via the MasterBus configuration software. Refer to the user manual for the exact procedure, as it may vary depending on the firmware version.

Can I use this module as an interface for a battery level alarm?

Yes, this is a common application. By configuring an event on a MasterShunt or another battery monitor, you can make the Multipurpose Contact Output trigger an audible or visual alarm when the battery voltage reaches a critical threshold.

Is the product delivered with the cable and MasterBus connector?

Yes, the delivery includes a MasterBus cable, a MasterBus connector, a screw terminal block, and the user manual. All the necessary components for a basic installation are provided.

How to configure a one-second start pulse for a generator set?

In the Multipurpose Contact Output configuration menu, enable the 'Puls. (1sec)' option (1 sec pulse). This will generate a one-second pulse when the relay is activated, which is required for certain genset starters.

Can I use this module to control a battery compartment fan?

Yes, this is a typical use case. You can set an event on the Mass charger so the relay activates a fan when the charger is running or in fault mode, to vent gases.