Vimar By-me Plus DIN-Rail MASTER Dimmer, For Dimmable Electronic Transformers, 230V, 40-500 VA at 50 Hz, 40-400 VA at 60 Hz, 4-Module Width, MOSFET, Protection Fuse
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Overview
The Vimar VM01867 is a DIN-rail master dimmer module for 230 V AC lighting circuits that use dimmable electronic transformers. It handles 40 to 500 VA on 50 Hz systems, and 40 to 400 VA on 60 Hz systems.
This unit is made to live inside an electrical panel, where it takes control commands from a By-me bus connection (29 V). In a master and slave setup, it can drive the main load directly and synchronize additional dimming channels through compatible slave dimmers.
Key features
- 230 V AC dimmer for dimmable electronic transformers: 40-500 VA at 50 Hz, 40-400 VA at 60 Hz
- DIN rail mounting on 60715 TH35; occupies 4 modules of 17.5 mm
- By-me bus supply: 29 V, 10 mA consumption, 4 W power dissipation
- Master function for slave dimmer 01868, with support for up to 4 slave units
- Maximum cable length between master and slave dimmers: 100 m
- MOSFET dimming stage with an integrated protection fuse (F2.5AH)
- LED indications for operation status and configuration feedback
- Not intended for motor loads such as fans and exhaust blowers
Installation and setup
Mount the module on a standard TH35 DIN rail inside a protected distribution cabinet. Plan for 4 DIN modules of space, and keep it away from spray, washdowns, and direct salt air since it is intended for indoor electrical enclosures.
Operating temperature is -5 C to +45 C in dry, dust-free locations. On boats, that typically means behind the main AC panel, inside a sheltered technical space, or within a sealed cabinet with appropriate ventilation.
Electrical and system integration
The dimmer is controlled from the By-me bus and can be assigned to groups and scenes through the system configuration workflow. It also stores the lighting level when turned off, unless there is a blackout.
Status LEDs provide quick fault checks in the field, including indications for overload, overheating, or a short circuit, which helps when troubleshooting intermittent lighting issues at sea or at the dock.
Compatibility and fit
This is a 230 V AC device for dimmable electronic transformers, commonly used to feed extra low voltage halogen lighting through a transformer. Confirm that the transformer is marked as dimmable and that the connected load stays within the VA limits for your frequency.
It is not a 12 V or 24 V DC dimmer, and it is not meant for motor loads. If your vessel is wired for 120 V AC lighting control, this model will not match the supply voltage.
Use cases on board
This setup makes sense on yachts and commercial vessels that run cabin or salon lighting through electronic transformers and want centralized, bus-controlled dimming from keypads or automation logic. It also fits refits where multiple lighting circuits need synchronized dimming behavior through a master and slave arrangement.
Maintenance and service
If the protection fuse opens, replace it only with the same fuse type and rating (F2.5AH). Before working on wiring, make sure the circuit is properly isolated at the panel, since the load side should be treated as live whenever the upstream supply is present.
Shipping
We ship worldwide from the United States. Rates are calculated at checkout based on destination and package weight. Some items include free shipping, which will show automatically. Not every product is eligible for international shipping; checkout will confirm eligibility. We do not ship to PO Boxes except through USPS, and not all packages qualify.
Processing and dispatch
Most orders are verified, packed, and handed to the carrier within 1 to 2 business days. Some products may need extra handling time or ship directly from the manufacturer. For certain international orders, inventory transfers between warehouses may add time. If any delay is expected, we will let you know the dispatch date.
Delivery and tracking
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Duties, taxes, and support
International customers are responsible for any customs duties, taxes, and fees charged by the destination country. If these charges are refused and a shipment returns to us, the carrier’s return cost and any re-entry customs fees will be deducted from the refund. If your order is late or you need help, contact cs@qualityboatparts.com and we will assist you.
Quality Boat Parts is a reseller. Many items include a manufacturer’s warranty, and all warranty service is handled directly by the manufacturer. We do not manage or administer warranty claims on behalf of customers.
Warranty terms, coverage, and duration are set by each manufacturer. Issues involving defects, repairs, or replacements must be addressed with the manufacturer’s support team. When available, the warranty period is listed on the product page. If it is not shown, contact us or the manufacturer for details before purchasing.
To start a claim, the customer must contact the manufacturer and follow their process. Keep your proof of purchase and original packaging, and register the product if the manufacturer requires it, as these are often needed for warranty service.
We are happy to help you find the right contact or documentation, but we cannot decide outcomes or intervene in claim resolutions. For guidance, email cs@qualityboatparts.com.