FREMO

{{Infobox Model Rail Scale

| name = FREMO H0

| image_filename = Fremo-19417.jpg

| image_caption = Individual FREMO module with standardised end profiles and fixing holes

| scale = 3.5 mm to 1 foot

| ratio = 1:87

| standard = {{plainlist|

• H0-Europe (single track)
• H0-Mainline (double track)
• FREMO-E (overhead electric)
• {{lang|de|H0-Hafen}} (industrial)
• H0fine (finescale)
• FREMO:87 (finescale)
• 00fremo (UK 1:76 scenery)

}}

| gauge = {{plainlist|

• {{RailGauge|16.5mm}}
• {{RailGauge|9mm}}

}}

}}

Image:Fremo JT2003.jpg

Image:FREMO-ses-e25318.jpg

The Friendship of European railway modellers ({{langx|de|Freundeskreis Europäischer Modellbahner}}, FREMO) is a modular rail transport modelling standard. Individual track and scenery modules are built to a common standard and are joined together to make larger model railway layouts.

The FREMO standards were created following a meeting in Europe in 1981.

Single track modules are {{convert|500|mm|in}} wide, of variable length, viewable from both sides. Each module comes with adjustable legs, to create a uniform top-of-rail height of {{convert|1300|mm|inch}} above floor level. Modules are physically joined together using three {{convert|12|mm|in|sigfig=1|adj=mid|-diameter}} holes and hand-tightened M8 bolts with washers and wingnuts. The electrical inter-connection uses two Banana connectors per track bus, over which Digital Command Control (DCC) signalling running at 14 volts is used for train control. Track uses Code 83 rails ({{convert|0.083|in|mm|abbr=in|disp=or|order=flip}} high), with a minimum curve radius of {{convert|2000|mm|ftin|disp=x| (}}; representing {{convert|175|m|ft|round=5|disp=or}} at 1:87) and fixed track centre-line spacing of {{convert|46|mm|in|disp=x| (}}; representing {{convert|4|m|ft|disp=or|sigfig=2}} separation at 1:87 scale).{{cite web |title=FREMO H0 – Modular Standard Standard Gauge 1435 mm in 1:87 |url=https://www.fremo-net.eu/en/modular-systems/h0-scale/h0-europe/h0-normentwurf/ |website=FREMO |date=2013-12-01 |lang=en }}

Some general aspects, such as rigid construction of modules, are derived from the {{langr|de|Normen Europäischer Modellbahnen}} NEM 900 standards published by MOROP.{{cite magazine|url=x|url-status=unfit|archive-url=http://translog.org/pub/MIBA/MIBA-Spezial%20%E2%84%96102.pdf|archive-date=22 October 2014|date=21 October 2014|accessdate=3 September 2014|title=Motive für Module|trans-title=Motives for Modules|magazine=MIBA Spezial|issue=102|first=Reinhold|last=Barkhoff}}

In 1995, the North American Free-mo standards were based on those of FREMO, with a number of changes made.{{cite web | url=http://www.free-mo.org|title=The Official Free-mo Standard}}{{cite web|url=https://www.nwhs.org/modeling/Free-moGuide.pdf|title=Overview|work=A Gentle Guide to the Free-mo Standards|first=Robert|last=Slaughter|date=8 February 2004|page=2|accessdate=1 September 2018}}