Märklin 60985 mSD/3 Steam Locomotive Sound Decoder with Wiring Harness

For those upgrading an older Märklin steam locomotive or refining a newer one, the 60985 mSD/3 decoder stands apart with its 16-bit sound depth and load-dependent motor regulation. Instead of a generic decoder, this unit delivers authentic steam-specific audio—whistle, bell, air pump, coal shoveling, brake squeal, safety valve, water pump, conductor's whistle, and even station announcements—all adjustable and mappable to your preferred function keys.

Highlights

• mSD/3 sound decoder engineered specifically for steam locomotives (Dampflok)
• Compatible with Märklin mfx, DCC, and Märklin Motorola (MM) digital systems
• High-performance load-dependent motor control with up to 1.1 A continuous current
• Universal wiring harness (Kabelbaum) for flexible installation in various locomotive models
• Multiple function outputs for lighting, smoke generator, and auxiliary functions (total 0.5 A)
• 16-bit sound with extensive steam-specific sound library and customizable sound slots
• Shunting mode, acceleration/braking delay, and adjustable sound volume
• Programming via Märklin Central Station or Mobile Station

In daily use

The decoder brings a new level of realism to your steam operations. Load-dependent driving sounds respond to the actual motor load, so your locomotive chuffs harder when climbing grades and eases off when coasting. The included wiring harness simplifies installation, allowing you to connect the decoder to the motor, track pickups, lighting, and speaker (speaker not included). Function mapping lets you assign any sound or output to your preferred function keys, and the shunting mode provides precise low-speed control for yard work.

Full specifications

• Decoder type: mSD/3 sound decoder
• Locomotive compatibility: Steam locomotives
• Digital systems: Märklin mfx, DCC, Märklin Motorola (MM)
• Motor continuous current: up to 1.1 A
• Total function current: up to 0.5 A
• Sound quality: 16-bit
• Sound features: Load-dependent driving sounds, whistle, bell, air pump, coal shoveling, brake squeal, safety valve, water pump, conductor's whistle, station announcements
• Function outputs: Multiple, for lighting, smoke generator, auxiliary functions
• Interface: Universal wiring harness (Kabelbaum)
• Speaker output: Yes, for external speaker (speaker not included)
• Programming: Via Märklin Central Station or Mobile Station
• Special features: Shunting mode, acceleration/braking delay, adjustable sound volume, configurable function mapping
• Voltage range: Track voltage (typically 16-22V AC/DC for digital systems)
• Application: Conversion of older Märklin locomotives or upgrading newer ones

Final note

With its authentic steam sound library and robust motor control, the Märklin 60985 is an excellent choice for model railroaders seeking to bring their steam fleet to life with realistic sound and performance.