NICOTRA-GEBHARDT

RDM 57-4550-6W-11

RDM 57-7180-6W-24

Wall-mounted smoke extract fan rated 600°C/120 min, 2-pole IE2 motor, 2,835 RPM — the highest static pressure capability in the range (~1,000 Pa).

Maximum airflow ~3,500 m³/h, Ø286mm, 1.1 kW / 400V three-phase, 42 kg.

The solution for tunnels with high aerodynamic resistance and long ductwork with multiple bends. Smallest casing in the range.

Certified DIN EN 12101-3, No. 0761-CPR-240031-2.7.

Wall-mounted smoke extract fan rated 600°C/120 min, 4-pole IE2 motor, 1,440 RPM.

Maximum airflow ~1,800 m³/h, Ø286mm, 0.55 kW / 400V three-phase, 40 kg.

At 73 dB(A) — the quietest model in the RWM range.

The compact solution for buildings with small exhaust cross-sections and strict acoustic requirements.

Certified DIN EN 12101-3, No. 0036-CPR-RG01-17.

Wall-mounted smoke extract fan certified for operation at 600°C for 120 minutes — the highest fire resistance class available, required in road tunnels, railway tunnels and buildings with extreme fire risk.

Motor completely outside the hot gas zone, cooled by outside air — the key to reliable operation under extreme thermal conditions.

Robust galvanised steel casing, backward curved impeller of welded coated steel.

Certified to DIN EN 12101-3, No. 0036-CPR-RG01-17.

Maximum airflow ~5,000 m³/h, power 0.55 kW / 400V three-phase, weight 62 kg.

Wall-mounted smoke extract fan rated 600°C/120 min, 6-pole IE2 motor, 925 RPM — the low-noise variant on the Ø395mm casing.

Maximum airflow ~3,500 m³/h, ~240 Pa, 0.37 kW / 400V three-phase, 61 kg, 74 dB(A).

Lower consumption and noise than the 4-pole model on the same casing — the correct choice when moderate airflows and acoustic limits take priority.

Certified DIN EN 12101-3, No. 0036-CPR-RG01-17.

Wall-mounted smoke extract fan rated 600°C/120 min, 4-pole IE2 motor, 1,425 RPM.

Maximum airflow ~8,000 m³/h, ~700 Pa, Ø438mm, 1.1 kW / 400V three-phase, 84 kg, 87 dB(A).

The solution for large tunnels and industrial buildings with exhaust cross-sections exceeding Ø395mm casing capacity. Also available with 6-pole motor on the same casing.

Certified DIN EN 12101-3, No. 0036-CPR-RG01-17.

Wall-mounted smoke extract fan rated 600°C/120 min, 6-pole IE2 motor, 925 RPM on Ø438mm casing.

Maximum airflow ~5,000 m³/h, ~310 Pa, 0.37 kW / 400V three-phase, 78 kg, 78 dB(A).

The most energy-efficient model on medium-large casing — 0.37 kW for 5,000 m³/h.

Certified DIN EN 12101-3, No. 0036-CPR-RG01-17.

RWM 57-4550-4W-16

RWM 57-4550-6W-11

RWM 57-5056-4W-17

RWM 57-5056-4W-13

RWM 57-5663-6W-16

The largest fan in the RWM 57 range. Smoke extraction 600°C/120 min, 8-pole motor, 725 RPM — the only 8-pole model in the range.

Maximum airflow ~20,000 m³/h, ~480 Pa, Ø751mm, 2.2 kW / 400V three-phase, 383 kg, 89 dB(A).

Designed for major tunnels where a single fan must cover exhaust volumes that would require 3–4 smaller models.

Separate certificate: DIN EN 12101-3, No. 0036-CPR-RG01-14.