240V Expander Station 4: 4 outlet with trigger cable

Four-Outlet Power Expansion With Staggered Startup

The 4RS-1 expander station is a universal four-outlet power expansion module that works with any TrolMaster plug-in style device module to safely control more devices than the module alone allows.

A single trigger cable connects to your existing device module. When that module activates, the 4RS-1 turns on each of its four receptacles with a three-second delay between outlets, minimizing inrush current so multiple devices can start up safely together.

Key Features & Benefits

• Individual 25A Relays — Each of the four outlets has its own relay rated for 25 amps.
• Staggered 3-Second Delay — Outlets activate in sequence to reduce high start-up surges.
• Works With Any Plug-In Module — Triggered by any TrolMaster device module already on your Hydro-X.
• Heavy-Gauge Terminals — Accepts wire up to #6 AWG for a secure power connection.

Who Should Use the 4RS-1 Expander Station

Growers who need to safely power more than one large device, such as multiple fans or pumps, from a single TrolMaster device module without overloading one outlet.

Installation Notes

Requires a dedicated 120/240 volt power circuit rated up to 50 amps at 240VAC. Rated for working temperatures of 41-140°F and 0-99% non-condensing humidity. Note: this plug is not U.L. or E.T.L listed.

Frequently Asked Questions

How many devices can the 4RS-1 control?

Up to four devices, each through its own 25A relay outlet.

Why is there a delay between outlets?

A 3-second delay between each outlet reduces high start-up inrush current when multiple devices power on together.

What size power circuit does it need?

A dedicated 120 or 240 volt circuit rated up to 50 amps at 240VAC.

Is the 4RS-1 U.L. or E.T.L listed?

No, the plug on this unit is not U.L. or E.T.L listed; install according to local electrical code.