In Line Centrifugal Duct Fans

• Casing
Impact resistant polymers.
With inlet and outlet spigots.
• Impeller
Backward curved centrifugal of impact resistant polymers.
• Terminal box
All terminal boxes are mounted on the casing and IP 44.
• Speed control
All models are speed controllable using the controllers below.
• Motor
Low noise external rotor motor with ball bearings.
• Motor protection
Thermal contacts wired in series as standard.
• Installation
Installation in any position.
• Sound levels
Sound levels as given below.
• Protection
Splashproof to IP 44.

Centrifugal Fan Dimensions

Fan nominal size in mm A B C D E
100 100 245 160 220 30
125 125 245 160 220 30
150 150 341 170 230 30
160 160 341 170 230 30
200 200 341 170 230 30
250 250 341 170 230 30
315 315 400 215 275 30


Single Phase in line centrifugal fans 230 V/1 ph./50 Hz

Fan Code Speed rpm 0 50 100 150 200 250 300 400 450 500 MP Watts Amps Max air flow temp +°C Transformer Electronic Weight kg Sound Level @4m Price (£)
RRK 100 2050 0.042 0.033 0.022               34 0.15 60 TSW 0.3 ESA 1 3.0 61 66.00
RRK 125 2420 0.092 0.081 0.072 0.061 0.047 0.031 0.008       68 0.30 60 TSW 0.3 ESA 1 2.7 61 68.00
RRK 150 2520 0.112 0.108 0.094 0.083 0.069 0.050 0.019       70 0.30 60 TSW 0.3 ESA 1 3.1 59 70.00
RRK 160 2520 0.112 0.108 0.094 0.083 0.069 0.050 0.019       70 0.30 60 TSW 0.3 ESA 1 3.1 59 70.00
RRK 200 2550 0.214 0.194 0.172 0.150 0.122 0.094 0.058 0.022     125 0.52 45 TSW 1.5 ESA 1 3.6 73 92.00
RRK 250 2550 0.231 0.211 0.192 0.167 0.142 0.108 0.072 0.028     125 0.52 45 TSW 1.5 ESA 1 3.6 68 105.00
RRK 315 2450 0.353 0.331 0.306 0.278 0.253 0.225 0.194 0.161 0.112 0.033 220 0.98 45 TSW 1.5 ESA 3 5.0 73 140.00

• CasingSteel Cased Centrifugal Fan
Galvanised sheet steel. With inlet and outlet spigots.
• Impeller
Backward curved centrifugal. Temperatures of -30 to +60°C
• Terminal box
All terminal boxes are mounted on the casing and IP 55.
• Speed control, Motor, Motor protection, Installation, Sound
levels & Protection as PLASTICCASED
• Full range of ancillaries as for PLASTIC-CASED.

Fan nominal size in mm A B C D E
100A 100 242 150 198 24
100C 100 242 150 198 24
125C 125 242 150 198 24
150B 150 272 142 198 28
150C 150 344 174 230 28
160B 160 272 142 198 28
160C 160 344 174 230 28
200A 200 344 179 235 28
200B 200 344 179 235 28
250A 250 344 170 230 30
250C 250 344 170 230 30
315A 315 402 189 257 34
315C 315 402 189 257 34


Steel Cased: Single Phase in line centrifugal fans 230 V/1 ph./50 Hz

Fan Code Speed rpm 0 50 100 150 200 250 300 400 450 500 MP Watts Amps Max air flow temp +°C Transformer Electronic Weight kg Sound Level @4m Price (£)
RR 100 A 1900 0.047 0.039 0.033 0.025 0.017 0.008         41 0.18 75 TSW 0.3 ESA 1 3.0 57 55.00
RR 100 C 2460 0.064 0.058 0.050 0.039 0.031 0.019 0.006       70 0.32 60 TSW 0.3 ESA 1 3.0 67 55.00
RR 125 C 2360 0.097 0.081 0.067 0.053 0.036 0.022         72 0.33 60 TSW 0.3 ESA 1 3.0 67 56.00
RR 150 B 2410 0.136 0.117 0.097 0.078 0.061 0.036 0.003       69 0.32 60 TSW 0.3 ESA 1 3.2 65 62.00
RR 150 C 2450 0.194 0.175 0.153 0.128 0.106 0.083 0.061 0.014     100 0.40 60 TSW 1.5 ESA 1 4.3 70 72.00
RR 160 B 2410 0.136 0.117 0.097 0.078 0.061 0.036 0.003       69 0.32 60 TSW 0.3 ESA 1 3.2 65 62.00
RR 160 C 2450 0.194 0.175 0.153 0.128 0.106 0.083 0.061 0.014     100 0.40 60 TSW 1.5 ESA 1 4.3 70 72.00
RR 200 A 2580 0.228 0.208 0.186 0.158 0.131 0.097 0.061 0.022     115 0.50 60 TSW 1.5 ESA 1 4.6 72 76.00
RR 200 B 2500 0.264 0.244 0.231 0.208 0.186 0.161 0.136 0.114 0.092 0.044 158 0.69 60 TSW 1.5 ESA 1 5.0 73 94.00
RR 250 A 2580 0.244 0.217 0.192 0.167 0.142 0.114 0.075 0.008     115 0.50 60 TSW 1.5 ESA 1 4.6 72 82.00
RR 250 C 2420 0.306 0.278 0.253 0.228 0.206 0.181 0.161 0.139 0.117 0.061 185 0.81 55 TSW 1.5 ESA 1 5.0 73 98.00
RR 315 B 2465 0.392 0.367 0.339 0.308 0.278 0.244 0.208 0.167 0.125 0.036 190 0.84 50 TSW 1.5 ESA 1 6.1 72 110.00
RR 315 C 2400 0.486 0.458 0.433 0.406 0.378 0.344 0.311 0.278 0.242 0.175 285 1.25 50 TSW 1.5 ESA 3 6.0 76 136.00