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

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.

Orders are processed within 2 business days, which includes verification, packing, and dispatch. Orders of $100 or more qualify for free shipping when eligible. For orders under $100, shipping costs are calculated at checkout based on destination, package weight, and selected service. International shipping is available for eligible products, and certain items may require additional handling, warehouse transfers, or may ship directly from the manufacturer, which can affect processing time.

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We ship throughout the United States and to most international destinations for products eligible for international shipping. International orders may be subject to customs duties, taxes, brokerage charges, or other import fees, which are the customer's responsibility and are not included in the product or shipping price. PO Boxes are accepted only when shipping through USPS, and not all packages qualify for this option. If your order does not arrive within the estimated delivery window, please contact us at info@apollolighting.com or +1 (954) 375-0100 so we can assist with locating your package.

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Returns may be requested within 30 days of receiving your order. Items must be unused, uninstalled, unaltered, and returned in their original packaging with all tags, packing materials, blank warranty cards, manuals, instructions, accessories, and included items. Certain products, including installed or used electronics, electrical components, lighting, consumables, custom or special-order items, cut-to-length products, safety equipment, and merchandise exposed to water or marine conditions, may not be eligible for return.

To request a return, sign in to your account and select the applicable order and items, and submit your request for review. Eligible unfulfilled items may also be submitted for cancellation within 1 hour of placing the order. Returns or cancellations are not considered approved until you receive confirmation from Apollo Lighting. Please do not ship or drop off merchandise before receiving return approval and instructions.

Customers are responsible for arranging and paying for return shipping unless the return is due to an error by Apollo Lighting or the item is verified as defective, damaged, or incorrect. Missing, damaged, defective, or incorrect items must be reported within 2 business days of delivery, and photos or other documentation may be required for review. If the issue is verified, Apollo Lighting may provide or reimburse return shipping and issue a replacement or refund depending on the circumstances. International customers are responsible for return shipping, duties, taxes, customs charges, brokerage fees, and other costs associated with an international return.

After your return is received and inspected, approved refunds are issued to the original payment method and may take 5-7 business days to appear after processing. Original shipping and handling charges are nonrefundable, and the value of any included free items that are not returned may be deducted from the refund. Apollo Lighting does not charge a standard restocking fee on eligible returns. Returns that are incomplete, damaged, installed, used, altered, improperly packaged, or otherwise do not meet the eligibility requirements may be refused. We recommend using a trackable and appropriately insured shipping service for all customer-arranged returns.

For assistance, contact info@apollolighting.com or call +1 (954) 375-0100.

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Many products sold by Apollo Lighting include a manufacturer's warranty covering defects in materials or workmanship. Warranty terms vary by brand, product category, and model, so eligibility, coverage duration, exclusions, and available remedies are determined by the applicable manufacturer. We recommend reviewing the warranty information provided with your product before installation or use, especially for marine electronics, navigation equipment, lighting, electrical systems, pumps, safety equipment, and other specialized marine products.

If you need warranty service, the claim must follow the process established by the manufacturer, authorized service center, or designated warranty provider. You may be asked for proof of purchase, a serial number, product registration, photos, maintenance or installation records, or other documentation. Apollo Lighting does not determine or modify a manufacturer's warranty coverage or final claim decision, but we are happy to help provide purchase information and direct you to the appropriate manufacturer or warranty resource.

Keep your receipt, product documentation, serial number information, and original packaging when practical. Damage caused by normal wear, misuse, improper installation, insufficient maintenance, corrosion, impact, unauthorized modifications, electrical issues, or operation outside the manufacturer's specifications may not be covered. Warranty claims are separate from standard returns, so a product that has been installed, used, or exposed to marine conditions may no longer qualify for return while still remaining eligible for evaluation under the manufacturer's applicable warranty.

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