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Remote Mount Solenoid Driver
4-20mA Input Version

The Remote Mount Solenoid Driver simplifies remote control of proportional solenoids. The unit accepts 4-20 mA signal input and a wide range of power sources from 9-28 VDC. This linear solenoid driver utilizes high frequency switching output (PWM) to provide a DC current output. Options for maximum current output include 2 Amps, 1.2 Amps, 600 mA or 400 mA. A current sensing circuit maintains current output regardless of changes in input voltage or coil resistance. The user can adjust maximum and minimum current. Ramp time, dither frequency and amplitude can be adjusted to match the application. A system of LED's indicates output power level, input power level and power on/off. It is CE certified for EMC. The unit is available as a stand alone PCB board, as a packaged driver enclosed in an IP65 or IP67 rated metal housing with cable provided or with 3 connectors. OEM versions are available. The valve driver is designed for remote mounting. Other versions are available including 0-5 VDC/0-20 mA/10K potentiometer and 0-10 VDC signal input versions as well as a DIN 43650 coil mount version.

PCB Board Version

DIN Rail
DIN Rail Mount Version



  • Remote mounting
  • Stand alone PCB board or enclosed in a metal housing with cable (3 connectors or no cable optional)
  • Maximum current adjustment does not affect minimum current setting
  • Broad range of supply voltages (9-28VDC) with no degradation in performance
  • Current sensing circuit maintains output regardless of changes in input voltage or coil resistance
  • Modern technology utilizing high frequency switching output (PWM)
  • Energy efficient design (no heat sink is required)
  • Accepts 4-20 mA signal input
  • Maximum current output options include 2 A, 1.2 A, 600 mA or 400 mA
  • LED indication of output power level, input level and power on/off
  • Simple implementation of "soft shift" control with minimal external components
  • Electronic limiting circuit means no internal fuses
  • Short circuit proof (in case of solenoid failure or mis-wiring)
  • Reverse polarity protection
  • CE certified for EMC
  • Metal box version carries IP67 protection rating
  • Filter eliminates electrical noise


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Hydraulic Valve Controllers

Technical Specifications:

PCB Board

Packaged Driver (board installed in housing assembly)
P/N: RSD-SMB-4-20MA-x-00 (Available with no cable)
P/N: RSD-SMB-4-20MA-x-01 (Available with 3 connectors)
P/N: RSD-SMB-4-20MA-x-IP5-1.5M (IP65 rated with 5 ft. (1.5m) cable)
P/N: RSD-SMB-4-20MA-x-IP7-1.5M (IP67 rated with solid round 5 ft. (1.5m) cable)

DIN Rail Mount
P/N: RSD-DR-4-20MA-X

x=maximum current output (2A, 1.2A, 800mA, 600mA or 400mA)

Order Codes:

PCB Board
P/N: RSD-PCB-4-20MA-1.2A (1.2A output)
P/N: RSD-PCB-4-20MA-2A (2A output)
P/N: RSD-PCB-4-20MA-400MA (400mA output)
P/N: RSD-PCB-4-20MA-600MA (600mA output)
P/N: RSD-PCB-4-20MA-800MA
(800mA output)

Packaged Driver
P/N: RSD-SMB-4-20MA-1.2A-IP7-1.5M (1.2A output, IP67 with 1.5m cable)
P/N: RSD-SMB-4-20MA-2A-01 (2A output, 3 connectors)
P/N: RSD-SMB-4-20MA-2A-IP7-1.5M (2A output, IP67 with 1.5m cable)
P/N: RSD-SMB-4-20MA-400MA-IP7-1.5M (400mA output, IP67 with 1.5m cable)
P/N: RSD-SMB-4-20MA-600MA-00 (600mA output, no cable)
P/N: RSD-SMB-4-20MA-600MA-IP7-1.5M (600mA output, IP67 rated with 1.5m cable)
P/N: RSD-SMB-4-20MA-800MA-00-2 (800mA output, no cable)
P/N: RSD-SMB-4-20MA-800MA-IP7-1.5M (800mA output, IP67 rated with 1.5m cable)

DIN Rail Mount
P/N: RSD-DR-4-20MA-1.2A (1.2A output)
P/N: RSD-DR-4-20MA-2A (2A output)
P/N: RSD-DR-4-20MA-400mA (400mA output)
P/N: RSD-DR-4-20MA-600mA (600mA output)

Operating voltage:

9-28VDC (UL approved range)
Accepts up to a maximum of 32 VDC

Control input signal options:

4-20 mA current signal
(0-5 VDC/0-20 mA/10K potentiometer or 0-10 VDC control input versions are also available.)

Maximum output current:

2A, 1.2A, 800mA, 600mA or 400mA

Input resistance:

33 Ohms

Solenoid resistance selection (nominal):

Rcoil<(Vpower supply - 1.5V)/Imax

Electromagnetic compatibility (EMC):
- Packaged Driver
Emission: EN 50081-2
Immunity: EN 50082-2
Approvals: CE (Packaged Driver)
The PCB Board is sold as a component.
Electrical Connections:

PCB Board or Packaged Driver (no cable) - 10 screw terminals

Packaged Driver with cable - Unterminated cable - 5 ft. (1.5m)

Packaged Driver with 3 connectors - Solenoid - Brad Harrison 45360-001 nano-change receptacle (3-pole male)
Signal Input - Brad Harrison 45360-001 nano-change receptacle (3-pole male)
Power Input - Brad Harrison 8R4E06A18A120 micro-change single keyway receptacle (4-pole male)
Mating plug with cable assemblies are available. Contact manufacturer.

Protection: - Packaged Driver IP65 with neoprene lid gasket installed and gray cable
IP67 with neoprene lid gasket installed and solid round black cable
Operating conditions: -40 to 85°C (-40 to 185°F)
Dimensions: See datasheet for dimensions
PDF Datasheet:
pdf datasheet Click icon for PDF datasheet
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