• Model:RTRD-2.0

RTRD - Three Phase Speed Controller - 2 Amp

£ 342.99 (excl. VAT)

£ 411.59 (inc. VAT)


Manual five-step transformer (with motor protection) - RTRD - Three Phase Speed Controller - 2 Amp

A three-phase transformer which controls the fan speed by altering the supply voltage in five fixed steps. The steps are adjusted manually, using the control knob on the front of the unit.

An integral motor protection device is included which cuts the supply voltage to the fan if the thermal contact in the fan motor is activated. The unit is reset by turning the knob to 0 for 10 seconds, after which the unit restarts.

Input terminals for room thermostat RT and frost protection thermostat FS cut supply voltage to the fan when the circuit is broken. When the frost protection thermostat FS breaks the circuit, it is reset in the same way as when the TK is triggered. Terminals are linked before delivery. The indicator lamp on the front shows that the transformer is in operation.

The transformer has 230V terminals for operating dampers, electric heater batteries or other external equipment. These terminals have no current when the transformer knob is in position 0, or when the TK or RT input is open. Supply voltage: 400V 50/60Hz.
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RTRD 2 Speed Controller

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RE 1.5 Amp3 x TG-K3/NTC10-01 - Duct temperature sensor1 x Transformer Speed Control - RTRE- 7.0Amp1 x ELM 25 EX Flexible Cuff for ERM 253 x Transformer Speed Control - RTRE- 1.5Amp2 x Transformer (silent) speed controller - RE 5.0 Amp5 x Speed Controller - REB1-N3 x MTP 10, 10K, Speed control1 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt CVR2 x Silent 100 Window Kit - windowS2 x SAVE VSR 300 heat recovery unit1 x AIRVENT speed control - AIR4019611 x Compact SCD450/4-1AC1 x IR24-P - Presence detector1 x DDMP 12-12 3F 1810W M6A4 DG01 x Elta Wall Cowl SWC45/501 x GRA-100 External Grill by S&P1 x CBA-100 Inlet Flange for CBT-1001 x Elta Wall Cowl SWC25/311 x VTR 500 STD Filter Kit2 x LFBR 315 G4 - Helios Inline Filter Box - 315mm1 x Jet Cowl - 315mm1 x Biflow SB400-CON2-3 - High Temperature Bifurcated Fan1 x CO2 Room Sensor - CO2-R1 x KBA- Inlet Mounting 1801 x Vertical Cowl and Fan (Single Phase) - RAV400-4-11 x Comefri - TLZ 560 R - High Performance Scroll Fan1 x CBS-100 Outlet Flange for CBT-1001 x Single Deflection Grille 400mm with OBD damper1 x Elta SCP400/4-1AC - IP551 x HIMF - Mixed Flow Fan 125mm Inline Fan1 x DDMP 10-10 1F 1000W M6A2 DA52 x Multi Input Run On Timer - 0 - 20min - CFCU1 x Helios TSW 7.5 Amp Transformer speed controller1 x Remote controller FLEX - for VEKO INT1 x Transformer 5 Speed Controller - ATC1-12TK1 x REU 7amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Frequency converter RUCK - FU 075 211 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x Balance S Diffuser - NO RING - 125mm1 x Helios TSW 10 Amp Transformer speed controller1 x Circular Ceiling Diffuser - TST 1601 x Balance S Diffuser - NO RING - 100mm1 x 5-Speed Controller for use with Elta SAX Classic Fans1 x Round ceiling diffuser 200mm1 x Round ceiling diffuser 300mm2 x EFSC-3N- Single Phase Speed Control1 x Round ceiling diffuser 350mm2 x Vent Axia ACM 100 inline mixed flow duct fan1 x ELTA - Single Phase Transformer 8amps2 x Isolator Switch - ISOSW2 x Airvent ceiling fan controller1 x EFSC-6N- Single Phase Speed Control3 x Single phase speed controller by auto-transformer - 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PIR41 x DA9/9-NT1 x FFR 355 Filter Cassette2 x Potentiometer EGH 01 - for DDMP Fans2 x Elta Variable Speed Drive IP66 - 4.0KW2 x PIR Sensor - PIR21 x 204x60mm Insulated Rectangular Vertical 45° Bend1 x CBT-130N Centrifugal1 x Egg Crate Grille with G2 Dust panel filter 1 inch- 300x3001 x CBA-160 Inlet Flange for CBT-1601 x KBA- Inlet Mounting 2251 x 220x90mm Insulated Rectangular Vertical 45° Bend1 x DDMP 10-08 FLANGE1 x Egg Crate Grille with Dust panel filter 1 inch- 595x5954 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan2 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x Transformer 5 Speed Controller - ATC1-10TK1 x MWS 5 – Transformer Controller With Motor Protection Unit2 x RDS 11 Helios Transformer Controller With Motor Protection1 x Three Phase 3 step - 10amp Transformer controller for use with the HV Wall Mounted fans.2 x Helios TSW MCB Amp Transformer speed controller1 x ERR 20/1 Centrifugal inline fan1 x RTRD - Three Phase Speed Controller - 4 Amp1 x Single phase speed controller by auto-transformer - RMB 10.0 Amp2 x WS - Reversing Switch from Helios Fans1 x Two Speed Switch - REGUL-22 x Vent Axia ACM 125 inline mixed flow duct fan2 x MWS 1.5 – Transformer Controller With Motor Protection1 x EBM-Papst D2E097-BK76-98 Double inlet1 x DEF-140T Inlet Guard for the CBT-100N1 x BEAS-control module2 x Elta 3 Amp Electronic single phase speed controller with TK1 x EC6H - Reversible Group Fan Electronic Controller1 x Speed Controller - REB101 x DEF-CBM-RE-7 - Protection Guard3 x Speed Controller - REB51 x FAST-TRACK RANGE 90mm - Click Ring (1 bag of 10)2 x MTS10- extractor fan 3 step switch1 x Transformer Speed Control - RTRE- 3.0Amp1 x Skyflow SSR Horizontal Roof Cowl SSR80B1 x MTV-1/010 Controller 0 to 10V+2 x Elta Variable Speed Drive IP66 - 0.75KW1 x Speed Controller - REB2.5-N1 x Rectangular Airbrick Adaptor1 x DDMP 09/09 Mounting Flange2 x Silentub - STUB 1001 x Control switch - CR1501 x Elta 2 Amp Electronic single phase speed controller.1 x UB47- Universal Insulated Terminal1 x Elta Standard Ambient Flexible Connector - 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Long1 x Duct Termination with Mesh - 100mm1 x KRJ - 120 Inlet Guard for CBB/CBT fans1 x ELTA - Single Phase Transformer 2amps1 x DDMP 09/07 Mounting Flange1 x 204x60mm Insulated Rectangular Vertical 90° Bend1 x Envirovent 4 Way Remote Control Switch - SWHBKRF-41 x S&P MULTI-REG EC FAN CONTROLLER / INTERFACE1 x Helios TSW 0.3Amp Compact Transformer speed controller1 x Push Timer Switch - ZA41 x Transformer 5 Speed Controller - ATC1-8TK1 x Temperature Fan Speed Controller - ATCP4-WMS1 x TDP-D Pressure Sensor with Display1 x RDS 7 Helios Transformer Controller With Motor Protection1 x REU 1.5amp Speed control - Two Speed Five-Step Transformer - Trickle and Boost1 x RTRD - Three Phase Speed Controller - 2 Amp1 x Vent Axia ACM 150 inline mixed flow duct fan2 x CS2 Current Switch2 x Single phase speed controller by auto-transformer - RMB 3.5 Amp1 x ELM 18 EX Flexible Cuff for ERM 183 x KMBI 225 Connector rectangular/circular to install on the discharge of CMT1 x REE-1 Electronic Speed Controller1 x Helios HQW-315/4 - IP551 x REE-2 Electronic Speed Controller2 x TEM 075 - 5 Speed Transformer Speed Control1 x ENV 100 12v transformer SELV1 x Silent 300 CZ Design PLUS Extractor Fan3 x CMT-2 225/090 1.1KW - Single inlet centrifugal fan direct driven2 x Helios HQW-630/4 - IP551 x Helios HQW-250/4 - IP551 x SG-200 Fan Guard for the HQW 2001 x CBM Low Pressure Centrifugal Fan - CBM 10/10 4 Pole 550watt VR2 x TG-R room temperature sensor1 x Skyflow SSR Horizontal Roof Cowl SSR31/35B1 x FAST-TRACK RANGE 75mm - Click Ring (1 bag of 10)1 x TUNE-R-200-3-M4 - Control Damper1 x Elta 3 Amp Electronic single phase speed controller.1 x TD160-NT Mixvent - 100mm - TD160 Timer1 x Speed Controller - REB161 x CMT/4-315/130-4KW - Single inlet centrifugal fan direct driven1 x Mini Diffuser - 100mm2 x Vent Axia Silent 100T (TIMER)1 x CBM Low Pressure Centrifugal Fan - CBM 9/7 4 Pole 373watt CVR1 x Quietflow SQS100-1ECL - Centrifugal Box Fan1 x HIMF - Mixed Flow Fan 100mm Inline Fan1 x MV-B Dual Switch for use with Helios HQW plate fans,1 x MWS 3 – Transformer Controller With Motor Protection1 x Envirovent G4 Filter - 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