Smoke Generators for large sale decoders

ZIMO smoke generators are specially designed for ZIMO large-scale decoders, their characteristics and connections. The supplied cable can be connected directly to the loco board matching the decoder, without risk of twisting or mixing up the connections. The use of non-ZIMO decoders is possible under certain circumstances, but with restrictions.
For controlling single smoke generators from other manufacturers for H0 gauge (and small 0 gauge) together with ZIMO H0 gauge decoders, ZIMO offers the RAUSIH01 board.
(see Accessories for small scales)

See also: Speakers  /  Digital couplers  /  Accessories for large scale decoders

 

RAUSI1

single-
smoke
generator

 

The RAUSI1 single smoke generator is suitable for operation together with ZIMO large scale decoders. The RAUSI1 has a heating element and a small fan. A temperature sensor protects the heating element from overheating and destruction when the tank is empty. This tank can easily be filled from above via the chimney.
A 4-wire cable with plug is connected to the RAUSI1. The cable is 50cm long and can be shortened to the desired length at the end without a plug and then connected to the large scale decoder or the loco board.

 

Dimensions L x W x H:
Casing without screwed-on chimney extension: 49 x 29 x 27 mm
(Height with screwed-on top chimney extension: 45,5 mm; width with screw lugs 36 mm)

Oil tank volume: 4 ml; max smoke time: approx. 12 min

See also image gallery on the left.

RAUSI2

single-
smoke
generator

 

The RAUSI2 single smoke generator is suitable for operation together with ZIMO large scale decoders, especially in gauge 0 models. Like the RAUSI1, the RAUSI2 has a heating element and a small fan. A temperature sensor protects the heating element from overheating and destruction when the tank is empty. This tank can be easily filled from above via the chimney and has the same volume of 4ml, despite the smaller dimensions of the RAUSI2, but should only be filled with 3.5ml to avoid overflowing.
A 4-core cable with plug is connected to the RAUSI2. The cable is 50cm long and can be shortened to the required length at the end without the plug and then connected to the large-scale railway decoder or the locomotive circuit board. 

 

Dimensions L x W x H:
Casing: 45 x 24 x 25 mm
(Height with chimney: 30 mm; Width with screw lugs 32,5 mm)

Oil tank volume: 3.5 ml (max 4 ml); max smoke time: approx. 10 min

See also image gallery on the left.

RAUDU1

dual-
gmoke
generator

The dual smoke generator RAUDU1 is suitable for operation together with ZIMO large scale decoders. In order to be able to control the chimney steam and the cylinder steam separately, the RAUDU1 has two separately controllable heating elements and two separately controllable small fans. Two temperature sensors protect the heating elements from overheating and destruction when the tank is empty. The common tank can be easily filled from above via the chimney.
A 6-core cable with plug is connected to the RAUDU1. The cable is 50cm long and can be shortened to the desired length at the end without a plug and then connected to the large scale decoder or the loco board.

 

Dimensions L x W x H:
Casing without screwed-on chimney extensions: 49 x 29 x 31 mm
(Height with screwed-on top chimney extensions: 67,5 mm; Width with screw lugs 36 mm)
Oil tank volume: 4ml; max smoke time: 8 min

See also image gallery on the left.

(Black finish, other colors possible)

TR92-101

Smoke generator for ZIMO large scale decoders:

 

Dimensions L x W x H:
50 x 30 x 30 mm; oil tank volume: 4ml

Connection wires:
     blue (fan +, max. 5-6 V, to connecto to the fan output of the decoder),
     yellow (fan - on decoder ground), 
     red (heating element +, on decoder + track voltage or low voltage),
     green (heating element on FO1 ... FO8).

ATTENTION: This construction is a ZIMO special, i.e. there may be smoke generators on the market that look exactly the same, but need different heating voltages.

This version of the TR92-101 contains a 15 Ohm heating element (a wire wound resistor), which has a maximum voltage load of 15V. With CVs #137-#139 (smoke intensity for standstill, cruising, full speed) a characteristic for the corresponding function output (FO1-FO8) is designed, and at the same time - IMPORTANT - the maximum voltage of the smoke generator has to be adjusted, whereby the highest value generates the corresponding proportion.

EXAMPLE: Heating element + connected to track voltage 24V: CVs #137, #138, #139 = 50, 75, 110: The heating element is made for a maximum voltage of about 15V, therefore, the voltage has to be limited correspondingly by PWM. This results in CV #139 (highest intensity at acceleration) being 110 = 255/ (24/10), for the other CVs (standstill/cruising)correspondingly low values (about 40% nad 60%, what can be adjusted individually).

EXAMPLE: Heating element + connected to 18V (track voltage or low voltage adjusted to 18-19V): CVs #137, #138, #139 = 65, 95, 140. In contrast to the example above, the values are adjusted higher (about 25%), because the voltage is lower (18V is about 25% lower than 24V) and therefore has to be reduced less.

Accessories for large scale smoke generators

RAUHEIZEL RAUHEIZEL Replacement heating element (15 Ohm) for large scale smoke generators RAUSI1, RAUSI2 and RAUDU.
TR92-101-HZ TR92-101-HZ Replacement heating element (40 Ohm) for large scale smoke generator TR92-101 .

Last update: 23.01.2026