Jump to Navigation

Johnson Controls W351 Electronic On/Off Humidity Control

Electronic On/Off Humidity Control
W351

The W351 Electronic On/Off Humidity Control is an electronic humidity control with SPDT relay output and LED indication. This control is used in conjunction with the HE-67S3-0N0BT or HE-67S3-0N00P series of humidity transmitters to stage humidification and dehumidification equipment. The control covers a range of 10 to 90% RH and has adjustments for setpoint, differential, and mode (humidification or dehumidification). The S351 Stage Module, D351 Display Module, and the Y350R Power Modules can be used with the W351.

• field selectable humidification or dehumidification mode
• adjustable differential and setpoint
• surface or DIN rail mounting
• 5-pin connectors eliminate wiring between modules

Select a link under the "item" tab below to order.

Cat #Setpoint Range(% RH)Differential (%RH)Humidity Transmitter
W351AB-2C10 to 90% RHto 10% RHsensor not included
W351AA-1C10 to 90% RHto 10% RHincludes room sensor HE-67S3-0N0BT
W351AA-2C10 to 90% RHto 10% RHincludes duct sensor HE-67S3-0N00P


Main menu 2