High performance proportional actuator with fail-safe extending function – 561 lbf (2500 N)
High performance proportional actuators with fail-safe extending and automatic stroke adaptation which provide accurate modulating, 3-point or on/off control when used together with combined control and balancing valves – both with or without integrated Δp controller – as well as stand-alone 2-way and 3-way control valves from IMI Hydronic Engineering.
Automatic measurement and adaptation to the valve lift as well as load-dependent end position switch-off which helps to reduce commissioning time and protect the valve and actuator from overloading.
Protected hand drive for a safe manual operation which enables easy troubleshooting.
Ease of service
The actuator housing cover is easy to remove (without screws). Parameters can be easily changed on site without using a Laptop.
For modulating or 3-point control.
Actuator's stem extended on power failure.
TA-MC253SE/24: 24V AC ±10%
TA-MC253SE/115: 115V AC +6%, -10%
Frequency 50-60 Hz ±5%
TA-MC253SE/24: 50 VA
TA-MC253SE/115: 80 VA
0(2)-10 VDC, Ri ~77 kΩ
0(4)-20 mA, Ri ~510 Ω.
Signal direction and starting point adjustable by micro switches.
0-10 VDC, max. 8 mA, min. 1.2 kΩ.
0.05 V, 0.15 V, 0.3 V or 0.5 V
Electric: 0,04 VDC
Mechanical: 0,002 in (0.04 mm)
0.47 or 0.95 in/min
S3-50% ED c/h 1200: EN 60034-1
End position switch-off:
Automatic detection of the valve lift.
Max. ambient temperature: 140°F
Min. ambient temperature: 32°F
(according to EN 60730)
Max. 1.58 in
24 VAC and 115 VAC: Actuator with screwed terminals.
Connection to valve:
Simple attachment to the valve by means of M8 screws. For some valve types an adapter may be needed. Please see accessories section.
Black body and red cover.
TA, Article No, product name and technical specification.
- Position switch unit:
►2 switches (WE1/WE2), potential free, infinitely adjustable.
►Rated load: 8 A / 250 VAC, 8 A / 30 VDC.
►Switching voltage: max. 400 VAC, max. 125 VDC
- Ingress protection: IP65
- Output signal: X=0(4)...20 mA
- Adapter with coupling for external product
For variants and accessories please contact your local sales office.
The products, texts, photographs, graphics and diagrams in this document may be subject to alteration by IMI Hydronic Engineering without prior notice or reasons being given. For the most up to date information about our products and specifications, please visit www.imi-hydronic.com.