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Products - ACTUATORS For rotary mixers, reversible and ball valves


for 3-way and 4-way rotary mixing valves

FIRŠT S11-CT controller for constant temperature regulation is designed for operating 3-way and 4-way valves (DN 15 - DN 50).

  • Two types of controllers are available: for 230 VAC with Europlug connection and with adapter 230 VAC / 24 VDC.
  • The FIRŠT S11-CT contoller have defined direction of rotation (90° rotating angle).
  • Controllers have LED temperature display for left or right valve montage position and knob for adjusting desired temperature.
  • Controllers have DIP switches for setting different functions of the contoller.
  • Led indicaton for opening-closing valve.

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S11 CT, for 3-way mixing valves (90° rotation)

Code TYPE Voltage Rotation time Connection Max. torque [Nm] Weight [kg]
S11 CT B-K 24VDCAdapter 230 VAC / 24 VDC
75s/90°Cable10 Nm0,48 kg
12951 S11 CT B-K 230VAC 230 VAC 50 / 60 Hz
75s/90° Cable  10 Nm 0,49 kg

Supply voltage: 230 VAC 50/60 Hz with Europlug cable
230 VAC 50/60 Hz with adapter or 
24 VDC without adapter

Rotation time: 75s/90°
Power consumption: For 230 VAC: 5 VA (2 W) operation, 2,5 VA
(0,7 W) stand by
for 24 VDC: 7 VA (2,5 W) operation, 2,5 VA 
(0,8 W) stand by
Max.Torque: 10 Nm
Protection class: II
Enclosure rating: IP40 (cable connection)
Connection: cable 1,7 m with Europlug connection
fixed adapter with cable 1,7 m
Direction of rotation: defined 90° angle
Manual operation: handle and push button
Position indicator: handle with position indicator
Ambient temperature: 0°C..+55°C
Storage temperature: -10°C..+70°C
Humidity: 0%..80% R.H. (non condensed)
Sensor type: PT1000, 1m Ø 6x25 mm
Temperature ragnes: (0-95°C, 25-50°C)
Indication: LED display with +/-0,5°C resol.
Led display: for left and right valve position


S11-CT is an controller for constant temperature regulation with sensor and adjustable temperature setting. It is designed for operating 3-way rotary mixing valves. FIRŠT S11-CT controllers allow high regulating accuracy and easy installation with different mounting systems.

Controller are available in 230 VAC with Europlug cable, 230 VAC with adapter or 24 VDC without adapter and are supplied with 1,7 m attached connection cable. Controller can be manually operated with handle and button on the cover.

S11-CT controller are recommended for maintaining a constant temperature in boiler heating circuit (protection against condensation), use in under floor heating applications, industrial processes, heat accumulators and in domestic hot water systems or swimming pools (individual systems, SPA, public swimming pools). Controler S11-CT are recommended for mixing applications with FMV 130E, FMV 140E and FMV H-151E valves.

Installation position:

s11 ct installation position

Electrical connection:

s11 ct DIP switches

Installation examples:

s11 ct installation examples


Code Image Designation Data Sheet
10755 Cable connector with molex IP44 3x0.75mm 2 l=1,7m (for S11 2P & S11 3P) Data sheet IP44 Molex cable connector
10756 Cable connector with molex IP44 4x0.5mm 2 l=1,7m (for S11 MOD X) Data sheet IP44 Molex cable connector
50103 Adapter kit for valves: firšt mixing valves series FMV G131/141, ESBE, Barberi, LK, ACOSO, Evenes, Seltron Data sheet euronorm M8
58104 Adapter kit for valves: firšt mixing valves series FMV130E, FMV 140E and FMV H 151E Data sheet euronorm M6
58106 Adapter kit for ISO 5211 F04 (for valves: FBV 661 ISO F04 DN15)
Data sheet ISO 5211 F04