24V Thermostatic Actuator (Zone Valve) for SSM & BSM Manifolds, 4-wire
Brand: Rifeng
Part#: SSM201
In Stock
Usually ships: within 1 business days

Technical Specifications:
  • Type of Protection: IP 54
  • Protection Class: III
  • Ambient Temperature: 32°F - 140°F (0°C - 60°C)
  • Storage Temperature: -13°F - 149°F (-25°C - 65°C)
  • Operating Voltage: 24 V AC/DC, 0-60 Hz, -10% + 20%
  • Operating Capacity: 1.8 W
  • Making Current: max. 250 mA for max. 2 min.
  • Wire Length: 40"
  • End Switch (Switching Current): 24V AC, 3A (1A).
 
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What is the difference between the 2 wire and 4 wire?
Helpful? Yes 9 No
SSM101 is a 2-wire model. SSM201 is a 4-wire model (with end switch). Purpose of the end switch is to delay start-up of the circulator pump until the actuator is fully open (~3-4 minutes). End switch design prevents pumping against a closed zone valve (actuator) and prevents early wear and tear of the components in the system. Regular SSM101 model does not have this functionality and in most instances will require creating a bypass using Taco 3196 model or similar, so as to bypass the flow of water (between the supply and return manifolds) until the actuator is fully open.
By PexUniverse Customer Service on 09/20/2016
What size is the nut on the actuator in MM?
Helpful? Yes No
It is a metric thread M30 x 1.5.
By PexUniverse Customer Service on 01/02/2018

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