Hydro-X 4-Outlet Expander Station (4RS-1)

Regular Price $137.75

The 4RS-1 is a universal 4-outlet power expansion module. It can be used with any of TrolMaster’s “plug-in” style device modules to expand the number of devices that can be controlled by the Hydro-X. A single 120-240 volt “trigger” cable on the 4RS-1 connects to your device / control module. When the device module is activated by the Hydro-x, the 4RS-1 trigger cable will turn on each of the 4 receptacles on the 4RS-1 with a 3 second time delay between each outlet being activated. That minimizes high start-up (inrush current) and allows up to 4 devices to be safely controlled. The 4RS-1 must be installed with a 120/240 volt power circuit (up to 50-amps @ 240VAC). Three wire terminals inside the unit accept up to #6 AWG wire making connections to the power source easy.

*This plug is NOT U.L. or E.T.L listed

Out of stock

SKU: 8352 Category:


TrolMaster Expander Station 4 for Hydro-X or Aqua-X System (4RS-1)
• Individual Power Relay (25A for each outlet)
• 3-second Intervals as Time Delay for Reducing Start-Up Surges

1 x   Hydro-X/Aqua-X 4 Outlet Expander Station (With Trigger Cable for Multi-Device Control) (4RS-1)

Main Power Voltage:               240V
Receptacle Quantity:              4
Max Relay Amperage:             25A
Operating Temperature:       41-140°F
Operating  Humidity:              0-99% Noncondensing

Additional information

Weight 3.3 lbs
Dimensions 10.8 × 10 × 3.7 in



TrolMaster Agro Instruments Co., Ltd. is an agriculture technology company, offering next generation environmental controllers in the horticultural market. We have deep roots in the horticulture and Controller industries and have invented a platform that is smart and connective. With an incredible flexibility, our platform is able to cover each individual grower’s needs, from the home hobbyist to large industrial facilities. Our platform offers remote access applications that enable our customers to manage every aspect of their grow facilities from anywhere anytime. We deliver automation, control, data collection, monitoring, and optimization. The upgradability of our systems also offers the value of continual improvements. We listen to growers, build products for growers…


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