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Key Specifications
Module size: 1M (one‑module width) — designed to fit into standard modular plate/cover‑frame setups.
Fan speed control: 4 steps of regulation (i.e., four discrete speed levels for ceiling fans).
Rated load: 100 W (for the version listed as part no. 22546).
Finish / build: Described as “Dust Free Finish”, “Slim Design”, modern aesthetic look.
Standards / protection: IS‑standard compliance, IP20 protection rating (as listed) for the unit.
Fitment: Compatible with the Anchor Roma cover plates / modular system.

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ℹ Additional Details & Considerations
This regulator is ideal for controlling ceiling fans (or similar low‑power motors) in residential or light commercial settings.
Because it is 1‑module it replaces a single space in a modular plate / switchboard; useful when you want a compact fan‑speed control alongside other modular switches/sockets.
Ensure the fan motor load is within the 100 W rating (or check variant if there are higher‑capacity versions) to avoid overheating or undue wear.
Since it’s part of the Roma range, it will match aesthetically with other Anchor Roma switches/sockets, which is helpful for a consistent wall plate design.

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Tips Before Installation
Confirm that the wall plate / modular frame supports the 1M size and that there’s adequate wiring (fan load wiring, proper earthing, correct gauge) for safe operation.
Ensure the regulator is mounted correctly (tight screws, correct back‑box depth) and that the fan wiring does not exceed the regulator’s rated load.
Because the finish is a “dust free” and slim design, it will look good in modern interiors; but take care of switchboard clearance and ensure no obstruction when the knob is turned.
If the installation is in a humid/coastal area (e.g., Chennai), ensure the back‑box and wiring are well sealed, and that the regulator is protected from dust/moisture ingress since only IP20 is specified (not weather‑proof).
For future maintenance, note the part number (22546 for one variant) — helps when sourcing matching replacements or spares.

Key Specifications & Features
Module size: 2 Module (2M) — designed for larger gang/plate width in modular wiring systems.
Fan speed regulation: 5 discrete steps of speed control for ceiling fans (i.e., five levels) — provides finer control than simpler 3‑ or 4‑step variants.
Rated load: Around 100 W (typical for variants) — designed for standard ceiling fan load.
Finish & design:
Finish: Glossy finish (“Super glossy finish”).
Design: Slim and sleek design, for modern interiors.
Material: Housing/plastic body, usually thermo‑plastic and/or polycarbonate for durability and safety. For example one spec: “Material | Thermo Plastic”.
Brand / Series: Anchor by Panasonic → Roma Classic series (also “Roma Urban” / “Roma Plus” variants exist) — trusted for modular wiring accessories.
Voltage: Designed for standard 240 V AC mains supply in India.
Colour/variant: Available in White or Black finishes (depending on variant) e.g., model 21496 in black version.

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Use‑Cases & Considerations
Ideal for residential or light‑commercial ceiling fans where you want finer speed control (5 settings) and a larger plate/2M size (perhaps replacing two adjacent module spaces).
Since it is 2M width, ensure your modular plate/gang supports two modules; if you have a smaller plate (1M) you’d need the corresponding 1M version.
A good fit when matching other accessories (switches, sockets) in the same “Roma” series to maintain uniform look and feel.
In humid or coastal environments (e.g., Chennai), ensure correct installation: secure mounting, proper wiring, good sealing, and ensure the regulator is rated for the load (100 W here) and compatible with fan in use.
Because it’s a step regulator (mechanical steps), note that newer electronic or remote versions might offer smoother control but this is a classic, reliable mechanical‑step option.

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What to Verify Before Purchase/Installation
Confirm exact part number (e.g., 21496) and variant finish (white/black) to match your décor.
Ensure your plate/cover is 2‑module size, and wiring back‑box depth supports the 2M unit.
Check the load rating (100 W) matches your ceiling fan’s power draw; if your fan is much more powerful or uses remote electronics, verify compatibility.
Confirm material and finish for durability: polycarbonate or flame‑retardant housing; smooth texture, glossy finish as described.
Ensure product authenticity and certifications (e.g., BIS) since brand quality matters.
Install with proper torque on terminals, isolate power before installation, and ensure earthing/neutral wiring is correct.

Legrand Arteor 2 M Fan Step Regulator
Available Full Range Switches, Sockets, Plates, Boxes
Features Are:-
• All switches are ISI marked as per latest IS 3854:1997 
• Finger-proof terminal for protection against accidental contact
• Laser marking for easy identification
• Confirming to IS 1293:2005• Shuttered socket for child safety
• Shutter open only with phase and neutral insertionsimultaneously Sleek and curvy plates with elegant looks comes with sturdy support frame for solid strength