• Model:RTRDU7.0

RTRDU 3 Phase Trickle & Boost 5 Step Speed Controller - 7 Amps

£ 1,044.99 (excl. VAT)

£ 1,253.99 (inc. VAT)


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 knobs on the front of the unit.

There are two control knobs: one for higher fan speeds and one for lower fan speeds. Switching between the high and low settings is done by an external change-over contact, which could be a thermostat or a timer.

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 switch to 0 for 10 seconds, after which the unit restarts.

Input terminals for room thermostat RT cuts supply voltage to the fan when the circuit is broken. Terminals are linked before delivery. The indicator lamp on the front shows when 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 switch is in position 0, or when the TK or RT input is open. Supply voltage: 400V 50/60Hz.
PDF Files


Data sheet

1 x Elta 10 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 2amps2 x Electronic extractor fan speed controller - FSC 1.51 x EC6H - Reversible Group Fan Electronic Controller1 x Elta 2 Amp Electronic single phase speed controller.1 x EFSC-3N- Single Phase Speed Control1 x Elta 3 Amp Electronic single phase speed controller with TK1 x Elta 3 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 8amps2 x Elta 6 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 16amps1 x Airvent ceiling fan controller1 x ELTA - Single Phase Transformer 12amps1 x AIRVENT speed control - AIR4019614 x COM-31 x Elta Variable Speed Drive IP66 - 0.37KW (1ph to 3ph)1 x ELTA - Single Phase Transformer 4amps1 x EFSC-6N- Single Phase Speed Control1 x Elta 6 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 10amps1 x Helios ZNE Electronic Fan Overrun Timer1 x Time Delay Unit - DT20B3 x Multi Input Run On Timer - 0 - 20min - CFCU1 x ACO8AC/EC AutoChangeover panel1 x ACOAS/ AC/EC Auto Changeover 8Amp1 x Elta ACO Panel 149-ACO14E1 x EC-Vent control board1 x Elta Variable Speed Drive IP66 - 7.5KW1 x Elta Variable Speed Drive IP66 - 2.2KW1 x FU 15 40 Frequency Inverter1 x FRQ-10A V2 Inverter Speed controller1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x FRQ5-4A V2 Inverter Speed Controller1 x FU 22 25 Frequency Inverter1 x FU 075 52 Frequency Inverter (IP20)1 x Elta Variable Speed Drive IP66 - 0.75KW1 x Elta Variable Speed Drive IP66 - 4.0KW1 x Frequency converter FU 075 14 - IP661 x Elta Variable Speed Drive IP66 - 1.5KW1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 5.5KW1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x FRQ5-10A Inverter Speed controller1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x FU 075 04 Frequency Inverter (IP20)1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x NKS-D swirl diffuser v-300 x 300mm1 x Curved Blade Grille 600x600 (2way blow)1 x Round ceiling diffuser 400mm1 x JSR 200 Painted RAL50181 x Circular Ceiling Diffuser - TST 1601 x Balance S Diffuser - NO RING - 100mm1 x Round ceiling diffuser 200mm1 x Round ceiling diffuser 300mm1 x Round ceiling diffuser 250mm1 x Round ceiling diffuser 350mm1 x PCA Diffuser - PCA-2502 x Vent Axia ACM 150 inline mixed flow duct fan1 x Remote Timer Control - 13511 x Run On Timer - 5s - 4hrs - RT5A2 x Push Timer Switch - ZA41 x 7 Day Programmable TIMECLOCK1 x EM30-24 Electro-Mechanical Control Panel1 x ACO 149-ACO1/EDV1 x U-EK plastic housing IP65 - for use with the U-EK230E Motor Protection3 x Vent Axia ACM 125 T (Timer Model) inline mixed flow duct fan1 x Frequency converter RUCK - FU 075 202 x Remote controller FLEX - for VEKO INT1 x Circular Ceiling Diffuser - TST 1251 x PCA Diffuser - PCA-3151 x Circular Ceiling Diffuser - TST 2002 x Transformer 5 Speed Controller - ATC1-4TK2 x Transformer 5 Speed Controller - ATC1-10TK2 x Transformer 5 Speed Controller - ATC1-8TK1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans2 x Helios TSW 3 Amp Transformer speed controller2 x Isolator Switch - ISOSW1 x BEAS-control module1 x Helios HQW-200/2 - IP552 x WS - Reversing Switch from Helios Fans3 x Vent Axia ACM 100 T (Timer Model) inline mixed flow duct fan2 x Helios TSW 0.3Amp Compact Transformer speed controller3 x Three Phase Transformer controllers - RMT 1.5 Amp3 x Systemair Save Connect 2.0 Internet Module2 x Helios TSW 1.5 Amp Transformer speed controller5 x Vent Axia ACM 125 inline mixed flow duct fan2 x Transformer speed controller - ATC1 - 1.5 Amps2 x CS2 Current Switch1 x Helios TSW MCB Amp Transformer speed controller2 x MWS 3 – Transformer Controller With Motor Protection2 x Single phase speed controller by auto-transformer - RMB 1.5 Amp1 x TTC-2000 Three phase electric heater controller1 x TG-K Duct temperature sensor1 x Envirovent Silent MV160/100T Mixvent - Timer Model - 100mm - (5 year warranty)2 x MWS 1.5 – Transformer Controller With Motor Protection1 x Single phase speed controller by auto-transformer - RMB 8.0 Amp3 x Transformer (silent) speed controller - RE 3.0 Amp1 x Helios HQW-200/4 - IP551 x Speed Controller - REB51 x REE-1 Electronic Speed Controller2 x Envirovent 4 Way Remote Control Switch - SWHBKRF-41 x Temperature Fan Speed Controller - ATCP4-WMS2 x Vent Axia ACM 100 inline mixed flow duct fan2 x MV-B Dual Switch for use with Helios HQW plate fans,
Reviews
Transformer (silent) speed controller - RE 1.5 Amp
Transformer (silent) speed controller - RE 1.5 Amp
£ 132.29

Incredible, Perfect, Silent and Fast delivery ! Thanks "Just...