Siemens SSC61 Electric Proportional Valve Actuator

Only compatible with Siemens small-bore water valves of VVP45, VXP45, VMP45 Series:

VVP45: 2-way Temperature Control Valves (Unitati Fan Coil, Air Conditioning Terminals, Heating Branch Pipes)

VXP45: 3-way Diverting/Mixing Valves

VMP45: 3-way Valves with Bypass

Dedicated for HVAC Terminal Units

1. Clasificarea modelului (Full SSC61 Product Lineup)

2. Specificații tehnice de bază

2.1 Specificatii mecanice

Rated Thrust: 300N (67livre)

Standard Stroke: 5.5mm (7/32″)

Full Stroke Running Time: 30s (50/60Hz)

Power Failure Reset Time for SSC61.5: Aproximativ. 25s; Maximum Capacitor Charging Time: 180s

Greutate: 0.25kg (SSC61) / 0.27kg (SSC61.5)

Clasa de protectie: IP40

2.2 Parametrii electrici

Alimentare electrică: AC 24V ±20% / DC 24V, Clasă 2 Circuit de siguranță

Standard Control Signal: 0~10V DC (High Input Impedance, 0.1mA)

4~20mA Compatibility: Achievable by External 500Ω / 0.2W Resistor

Cablaj: Terminale cu șuruburi, Supports Parallel Driving of Multiple Actuators

2.3 Condiții de mediu de funcționare

Temperatura ambiantă de funcționare: 5℃ ~ +50℃

Depozitare & Transportation Temperature: -25℃ ~ +70℃

Allowable Medium Temperature: Cold/Hot Water 1~110℃, Low-Pressure Steam ＜5psi

Orientarea montajului: Vertical to Horizontal Installation Permitted; Long-Term Upside-Down Mounting Prohibited

2.4 Certificari

CE, UL873, cUL, CSA, Certification for Installation in Air Ducts (Plenum Chambers)

3. Caracteristici funcționale de bază
4. Tool-Free Quick Installation: Equipped with lock nut, directly threaded onto 5.5mm stroke threaded valve bonnet without adapter bracket
5. Manual Override Knob: Top knob for manual valve opening/closing with visual valve position scale; automatically revert to automatic mode
6. Auto Stroke Recognition: Automatically calibrates full valve stroke upon power-up; linear 0~10V signal corresponds to 0~100% opening
7. Protecție la suprasarcină: Automatically cuts power once full stroke is reached to prevent motor burnout due to stall
8. Multi-Actuator Parallel Operation: Multiple SSC61 actuators can be synchronously driven by one single 0~10V signal
9. Exclusive Feature of SSC61.5: Built-in supercapacitor for automatic full valve closure upon complete power loss (safe water circuit shutoff)
10. Compatible Valves (Only 5.5mm Short-Stroke Threaded Valves)

Scenarii aplicabile: Unitati Fan Coil (FCU), Air Handler Reheat Coils, Radiator Electric Temperature Control, Water Flow Regulation for Small Units

5. Definiție standard de cablare (SSC61 0~10V Proportional Control)

G0: 24V Power Negative / DC24V Negative

G: 24V Power Positive / DC24V pozitiv

Y: 0~10V Control Signal Positive

G (Comun): Signal Negative (Common Ground with Power Supply)

4~20mA Modification: Install a 500Ω resistor in series between Y and G for controller 4~20mA current output

6. Replacement Cross Reference (Old & New Models)
7. SSC61 Discontinued, Direct OEM Replacement Model: SSC161.05HF

Identical thrust, accident vascular cerebral, voltage and control signal; universal mounting dimensions, no wiring modification required

2. Comparative Selection of Other Models in the Same Series

SSC81: 24V 3-Position Floating Control (Open/Stop/Close, No 0~10V Proportional Signal)

SSC31: AC230V 3-Position Floating Actuator for 220V Powered Terminal Valves

7. Scenarii tipice de aplicare
8. 2-mod / 3-way Electric Water Valves for Central Air Conditioning Fan Coil Units
9. Reheat / Precool Water Flow Regulation for Small Air Handling Units (AHU) in Equipment Rooms
10. Electric Temperature Control Valves for Zoned Floor Heating & Radiators
11. Proportional Water Flow Regulation for Small Air Conditioning Terminals in Cleanrooms & laboratoare
12. Precauții de funcționare
13. A single 24V transformer shall drive no more than 10 actuators to avoid voltage drop
14. The power failure reset function of SSC61.5 relies on its built-in capacitor; recharging is required after long-term power cut to enable safe valve shutoff
15. Medium temperature shall not exceed 110℃; prohibited for high-pressure steam applications
16. Not applicable for 20mm/40mm long-stroke valve bodies (SKD/SKC Series) due to mismatched thrust and stroke

Full Application Scenarios of Siemens SSC61 Actuator (5.5mm Stroke, 300N Thrust, 0~10V Proportional Control)

Compatible Valves: VVP45 2-way Valves, VXP45 3-way Valves, VMP45 3-way Valves. Designed exclusively for proportional flow regulation of small HVAC water circuits, available in two versions: standard SSC61 and power-failure safety shutoff SSC61.5.

1. Central Air Conditioning Terminals (Most Common Application)

1.1 Proportional Water Flow Regulation for Fan Coil Units (FCU)

2-mod / 3-way valves for fan coils in hotel guest rooms, office premises, retail stores and hospital wards.

Stepless proportional regulation of cold/hot water flow via 0~10V signal for precise room temperature control; eliminates frequent on-off cycling and reduces temperature fluctuation compared with on-off electric 2-way valves

SSC61.5 automatically shuts off water upon power loss to prevent ceiling water damage during unattended operation

1.2 Small Reheat / Precool Coils for Air Handling Cabinets

Small-bore water regulating valves matched with compact AHUs, fresh air handling units and vertical air conditioning cabinets to stabilize supply air temperature by adjusting coil water flow.

1.3 Fine Water Flow Tuning for Precision Air Conditioners in Equipment Rooms

Proportional regulation of secondary water circuits for small precision cooling units to maintain constant temperature and humidity inside equipment rooms.

2. Încălzire & Heat Supply Systems

2.1 Electric Temperature Control for Zoned Floor Heating & Radiators

Electric regulating valves installed on heating branch pipes and radiator manifolds of residential zoned heating systems. Paired with room thermostat 0~10V signals to adjust heating water flow on demand for energy-saving temperature control.

2.2 Secondary Branch Regulation for Small Heat Exchanger Stations

Proportional temperature control with low flow rate for independent heating branches in residential district heat exchange stations and commercial ground-floor premises.

2.3 Low-Temperature Radiant Heating (Underfloor Heating, Capillary Mat Systems)

Small-bore 3-way mixing valves for ceiling capillary heating/cooling terminals to adjust supply-return water temperature difference and prevent overheating/overcooling of floor surfaces.

3. Specialized Applications for Cleanrooms, laboratoare & Facilități medicale

3.1 Constant-Temperature Water Circuits for Hospital Operating Rooms & Wards

Medical areas demand high temperature stability; proportional control eliminates temperature fluctuations. SSC61.5 power-failure shutoff complies with medical safety standards.

3.2 Constant Temperature & Humidity Units for Laboratories & Testing Rooms

Small water regulating valves fitted for physical & chemical labs, metrology rooms and incubators to stabilize ambient temperature and humidity and guarantee consistent test data.

3.3 Small Air Conditioning Terminals for Cleanrooms

Reheat valves for air purification cabinets in compact dust-free workshops and laboratories, delivering precise temperature control to prevent temperature & humidity drift in clean zones.

4. Water Circuit Regulation for Commercial Equipment

4.2 Constant-Temperature Hot Water Systems for Swimming Pools & Small Bathhouses

3-way hot water mixing valves for small swimming pools and club shower facilities to stabilize outlet water temperature by adjusting cold/hot water mixing ratio.

4.3 Water Flow Regulation for Fresh Air Dehumidification Units

Small-bore proportional valves control dehumidification capacity precisely for commercial fresh air dehumidifiers equipped with built-in cooling/heating coils.

4.4 Auxiliary Water Circuit Fine Tuning for Air-Cooled Modular Chillers

Secondary bypass regulating valves matched with compact water chillers to balance hydraulic conditions of the entire system.

5. Small Industrial Constant-Temperature Equipment

5.1 Mold Cooling Circuit Fine Tuning for Injection Molding Machines

Proportional cooling water valves for small injection molds stabilize mold temperature and improve consistency of molded products.

5.2 Water Circuits for Small Test Machines & Thermal Cycling Chambers

Stepless flow regulation of heat exchange water circuits for compact constant-temperature test equipment.

5.3 Cooling Water Circuits for Printing & Mașini de ambalare

Precise temperature control of cooling circuits for printing rollers and packaging machines to avoid material deformation.

6. Supporting Applications for Building Energy Saving & Automatizarea clădirilor (BA) Sisteme

6.1 Zoned Temperature Control for Building BA Systems

Independent zone temperature control for office buildings and shopping malls. DDC controllers output 0~10V signals to drive SSC61 actuators for separate water flow adjustment per zone and reduced pump energy consumption.

6.2 Auxiliary Mixing Valves for Solar Heating Systems

3-way mixing valves for residential & commercial solar hot water systems to adjust the mixing ratio of solar hot water and cold water for constant-temperature water supply.

6.3 Terminal Branch Regulation for Ground Source Heat Pumps

Proportional water flow control for individual end branches of ground source heat pump systems.

Model Selection Guidance by Application

1. Standard office buildings, retail fan coils, conventional heating: Select SSC61 (maintains valve opening upon power loss, cost mai mic)
2. Hotel guest rooms, spitale, equipment rooms, spaces with high-value equipment: Select SSC61.5 (built-in capacitor for automatic valve shutoff on power loss, meets anti-flood safety requirements)

Unsuitable Application Scenarios (Selection Pitfalls to Avoid)

1. Large-diameter pipelines and main unit circuits (SKD/SKC long-stroke actuators required)
2. High-pressure steam media, medium temperature exceeding 110℃
3. 220V power supply requirement (choose SSC31 floating actuator without proportional control function)
4. Only on-off switching required without stepless regulation (SSC81 3-position floating actuator is optional)