• Model:RTRDU7.0

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

£ 1,110.21 (excl. VAT)

£ 1,332.25 (inc. VAT)

RTRDU 3 Phase Trickle & Boost 5 Step Speed Controller - 7 Amps 1

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

Shop by price
Shopping Cart
1 x FRQ5-4A V2 Inverter Speed Controller1 x Helios TSD 3.0 Transformer Speed Control (400v)1 x FRQ-10A V2 Inverter Speed controller1 x Elta Variable Speed Drive IP66 - 7.5KW1 x Frequency converter RUCK - FU 075 201 x Elta 10 Amp Electronic single phase speed controller.1 x Frequency converter FU 075 14 - IP661 x Elta Variable Speed Drive IP66 - 0.75KW1 x FU 075 52 Frequency Inverter (IP20)1 x FU 15 40 Frequency Inverter1 x FU 22 25 Frequency Inverter1 x FRQ5-10A Inverter Speed controller1 x Elta Variable Speed Drive IP66 - 2.2KW (1ph to 3ph)1 x ELTA - Three Phase Transformer 3amps1 x ELTA - Three Phase Transformer 10amps1 x Elta Variable Speed Drive IP66 - 5.5KW1 x FU 15 16 Frequency Inverter1 x Elta Variable Speed Drive IP66 - 1.5KW1 x Elta Variable Speed Drive IP66 - 4.0KW1 x FU 075 04 Frequency Inverter (IP20)1 x Frequency converter RUCK - FU 075 211 x FU 22 04 Frequency Inverter1 x Helios - FIUK-11KW 24.0A - FREQUENCY INVERTER1 x ELTA - Single Phase Transformer 2amps1 x Electronic extractor fan speed controller - FSC 1.51 x 5-Speed Controller for use with Elta SAX Classic Fans1 x EC6H - Reversible Group Fan Electronic Controller1 x Elta 6 Amp Electronic single phase speed controller with TK1 x EFSC-3N- Single Phase Speed Control1 x ELTA - Single Phase Transformer 8amps1 x Elta 3 Amp Electronic single phase speed controller.1 x Elta 3 Amp Electronic single phase speed controller with TK1 x ELTA - Single Phase Transformer 16amps1 x Elta 2 Amp Electronic single phase speed controller.1 x ELTA - Single Phase Transformer 12amps1 x AIRVENT speed control - AIR4019611 x ELTA - Single Phase Transformer 4amps1 x Remote Timer Control - 13511 x EFSC-6N- Single Phase Speed Control1 x COM-31 x Elta 6 Amp Electronic single phase speed controller.1 x Run On Timer - 5s - 4hrs - RT5A1 x ELTA - Single Phase Transformer 10amps1 x Helios ZNE Electronic Fan Overrun Timer1 x Time Delay Unit - DT20B2 x Multi Input Run On Timer - 0 - 20min - CFCU2 x Push Timer Switch - ZA41 x 7 Day Programmable TIMECLOCK1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 5001 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 6301 x Easy-fix termination kit - High Rise Ventilator - EFT1 x S & P Aluminium Axial Fan Louvre Shutter - PER-CR- 3551 x Elta Wall Cowl SWC56/631 x MTP 10, 10K, Speed control1 x CBT-100N Centrifugal1 x Vent Axia ACM 150 T (Timer Model) inline mixed flow duct fan1 x Transformer 5 Speed Controller - ATC1-10TK1 x Transformer 5 Speed Controller - ATC1-4TK1 x Transformer 5 Speed Controller - ATC1-8TK1 x HCFC 1.7 - Reversible Speed Controller for HCF sweep fans1 x Helios TSW MCB Amp Transformer speed controller1 x Three Phase Transformer controllers - RMT 1.5 Amp
£ 29,251.16
Best sellers
RTRD - Three Phase Speed Controller - 2 Amp Soler & Palau VFD-T inverter 5 amp IP54 Three Phase Transformer controllers - RMT 1.5 Amp ELTA - Three Phase Transformer 10amps Inverter VFKB 45 Soler & Palau VFD-T inverter 17 amp IP54 Inverter VFKB 48 Soler & Palau VFD-T inverter 9 amp IP54
Specials
BD7/7 centrifugal M4 0.13Kw
BD7/7 centrifugal M4 0.13Kw
£ 345.00 now £ 300.00
Reviews
Soler & Palau TCBB/4-450/H - IP65
Soler & Palau TCBB/4-450/H - IP65
£ 505.88

Delivered super promptly yesterday, next day. Only just fitt...