• Model:EFSC

Electronic extractor fan speed controller - EFSC

£ 31.49 (excl. VAT)

£ 37.79 (inc. VAT)

A range of Electronic Fan Speed Controllers designed for speed controllable single phase motors up to 10 amps.
The EFSC3,5,6 & 10 all have an illuminated on/off rocker switch and a stepless rotary knob for speed adjustment.
These controllers do not have TP/TK connections, any fans with these connections available should use suitable matching controllers, such as the EFSC with TK.

EFSC Range Features
• All models supplied with surface mount backing box
• Minimum & Maximum speed internal pre-set adjusters on all models
• Suitable for 2 or 3 wire control
• Electronic stepless speed control
• Easy to install

Physical Dimensions

150mm x 85mm x 40mm

Notes for engineers: If wanting to use 3 wire control, the capacitor will have to be disconnected from Live and fed to the Aux on the EFSC instead. (If the motor is supplied in this configuration, which is normally the case.)
This is a controlled Live controller. If the capacitor is connected to Neutral on the motor (controlled Neutral configuration) and you want to use 3 wire connection, U1 & U2 will have to be reversed for the fan to run in the correct direction.
3 wire control gives better starting torque, less heat generation and is preferred in all respects.

If in doubt use the 2 wire connection the the fan, as described in the instructions.
PDF Files


Data Sheet

Available Options

1 x CBMT/Q 250-54 1 HEATER KIT2 x CBA-80 Inlet Flange for CBT-801 x Acopel F400-315/1601 x Flexible PVC Ducting - 204x601 x DA9/9 Feet2 x Atex Motor Protection Switch - U-EK230E EX1 x GB-WSD 355 Weather Protection hood for the Giga-Box Fans - 355mm1 x Mounting Feet (pair) for SB-CON 2501 x Anti Vibration Mounts - Large - Pack of 4 - AVM11 x F7/G4 filter kit for IDEO HR unit1 x Etaline 400mm D4-01 3-phase1 x DA7/7 Feet1 x Helios HQW-710/6 - IP551 x ISA-ILHT-500/560/630 - Anti-vibration mounts1 x 2mtr Round Ducting - 100mm1 x Venturia Whole House Ventilation1 x MTG FEET & ANTI VIB. MOUNTS (SET OF 4) for MFQ560/4/31 x CVAT Acoustic Kitchen Fan & Inverter Kit - CVAT/4-12000/560 ND - Pack 81 x CBM 9/9 4 Pole 550watt C VR-( Three Phase) CLEARANCE ITEM1 x CMB-2-140-050 0.25Kw LG O1 x Elta Powder Coated Cased Axial Flange - 630mm1 x AL 400 D2 01 AXIALINE - High Performance Long Cased Axial Fan1 x Roof Axial Cowl - RAW10001 x CBMT/Q 250-30 1 HEATER KIT1 x Elta SPA710/4/6-3AC - IP541 x Acopel F400-200/1601 x Access Door for Circular Duct - 400 x 300 - SIZE 631 x MPS Weather Housing1 x Soler & Palau - Contra Rotating TCBTx2-560 - IP651 x 100mm Round 45 Degree Bend1 x Round ceiling diffuser 200mm1 x Biflow SB (CYL) Bifurcated Cylindrical Axial Flow Fan - 630mm1 x Woods 1400mm Flex Connector - 4148511 x HRB/6-560-35-APN-C1 x Elta SLC500-1EC -IE5 Motor- IP551 x AKOR Mounting Plate for GD model(VIM166423)1 x ELTA - Three Phase Transformer 3amps1 x BDS 400/450 RA b/d shutter1 x K 315 L Sileo Metal Tube Fan1 x Helios HQW-630/6 - IP551 x CBM 10/10 4 Pole 550watt RE VR (3 Phase)1 x Belt Drive Cased Axial Fan - 500mm - H version1 x Helios HQW-450/6 - IP551 x EC-Vent control board1 x Blast Gate (Manual) 250mm1 x Helios HQW-250/2 - IP551 x Metal Inline Fan - VENT-125NK1 x Jetflow-HIT Metal inline - 200mm1 x Duct Humidistat - HS4_hdt1 x Soler & Palau HXM-250mm1 x FSAF450B1DA Silencer 500/81 x DA12/12 Feet1 x Soler & Palau - HCBT/6-355/H - IP651 x Etaline 315mm - E2 03 (Low Power Version)1 x Elta Wall Cowl SWC35/401 x Elta Turboflow-TF - 630mm - Single phase1 x Elta SCP400-1EC - IP551 x Anti Vibration Mounts - Small - Pack of 4 - AVM21 x NKS-D swirl diffuser v-300 x 300mm1 x ASSG/F 500-560 Flex. conn. DVG1 x Dektite Combo Pipe Flashing - DC210REC1 x AM pallet Delivery Surcharge1 x Manrose 150mm - XF150BP
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