The general purpose flow controller accepts one flow sensor input, and provides one 16A relay for low-flow pump or process protection. The optional flash alarm brings attention to low-flow alarm conditions. Package this flow controller with our liquid or gas flow switch sensors.


  • Fail-safe relay control of pumps or valves with 0-60 second delay
  • Optional strobe brings immediate attention to flow alarm conditions
  • PP enclosure rated NEMA 4X with swivel base for conduit alignment
  • Easy setup with LED indicators for sensor, power and relay status
  • Invert switch changes relay state from NO to NC without rewiring


P/N Description From
LC30-1001 Controller, 3/4″ NPT $220.00
LC30-1002 Controller, 3/4″ NPT, w/strobe $275.00
LC30-1051 Controller, 3/4″ Rp $220.00
LC30-1052 Controller, 3/4″ Rp, w/strobe $275.00



Supply voltage: 120 / 240 VAC, 50-60 Hz

Consumption: 0.25A maximum

Sensor input: (1) four-wire flow switch

Sensor supply: 24 VDC @ 50 mA

LED indication: Sensor, power & relay

Strobe type: -10X1: N/A, -10X2: Xenon tube

Strobe flash: -10X1: N/A, -10X2: (1) per second

Contact type: (1) SPDT relay

Contact rating: 250 VAC @ 16A

Contact output: Selectable NO / NC

Contact delay: 0-60 seconds

Ambient temp.: F: -40° to 158°, C: -40° to 70°

Enclosure rating: NEMA 4X (IP65)

Enclosure mat.: 10X1: PP, UL94VO, 10X2: PP, UL94VO & PC

Conduit entrance: 1/2” NPT

Enclosure mount: 3/4” NPT (3/4” Rp)

Classification: General purpose

Approvals: CSA, LR 79326

Compliance: CE