Spartan Extra Compact Thermoelectric Actuator

Spartan ME1708 Compact Thermoelectric Spring Return Actuator.

Spartan’s thermoelectric actuators (ME1708 normally closed) utilize a highly refined wax filled element with piston/stem and patented packless elastomer seal. They are silent, extremely compact, inherently fail safe and can operate on hot and cold water, and low pressure steam to 15PSI. A PTC (positive-temperaturecoefficient) semi-conductive disc is both temperature control and heat source, inherently controlling at 90°C (194°F). The wax is chemically refined to melt at 70°C (158°F). The element expands in direct proportion to the amount of wax melted, driving the stem through its travel to open the valve. No other travel or thermostatic switches are required. Life expectancy is therefore in multiple decades and guaranteed by Spartan Peripheral Devices for 5 years.

These actuators can be installed on a multitude of Spartan 2 way & 3 way terminal unit control valve bodies with different types of connections.
Compatible with V240FLT, VN240, V241, V243, VN243, V245, V246-12F, V243-12I, V320, V321, and V325 series of zone valve bodies

Technical Data
Power off position: NORMALLY CLOSED
Operating voltage: 24 V AC/DC, +20%…-10%
Max. inrush current: < 300 mA during max. 2 min.
Operating power: 1W
Stroke (actuator travel): 5.0 mm
Actuating force: 100 N ±5%
Storage temperature: -25°C to +60°C (-12˚F to 140˚F)
Ambient temperature: 0 to +60°C (32˚F to 140˚F)
Housing material / colour: Polyamide /
light grey (RAL 7035)
Cable length: 1 m Weight with connecting
cable (1 m): approx. 150 g
Reaction time: Approx 4 mins (Full stroke)
Conformity
Surge protection according to:
EN 60730-1 min. 2.5 kV
Degree / class of protection: IP 54
CE conformity according to: EN 60730
Power supply: Class II as per UL/CSA
Conforms to ROHS