Isolated DC Voltage Sensors

Connect directly to any XR440, XR450or XR5-SE Data Logger.  No external power required when used with a Pace Data Logger.

  • 1.5 KVdc Rated Working Isolation Voltage
  • Single 3.3 to 5 Vdc supply, consumes less than 6 ma
Isolated DC Voltage Sensors, front view

Both models, and optional DIN Rail

Model DC-36V DC-72V
Range 4 - 38 Vdc

4 - 74 Vdc

Maximum Continuous Fault Voltage 66 Vdc

92 Vdc

Input Resistance 10 kilohms

20 kilohms

Resolution with XR5-SE, 0-5V range 0.04 V

0.08 V

Resolution with XR450 0.04 V

0.08 V

Resolution with XR440, 12 bit mode 0.04 V

0.08 V

Isolated DC Voltage Sensors, rear view

Common Specifications

Rated Working DC Isolation 2 kV DC
Rated Working AC Isolation 1.5 kV AC
Maximum Transient Isolation 7 kV Peak
Operating Temperature Range -40°C to 70°C (-40°F to 158°F)
Total Error, -20°C to 70°C ±1% of full scale
Dropout Threshold Voltage 4.3 Vdc

Input Voltages below the Dropout Threshold read as a negative value.

Power, Input Side Supplied by Input Signal (less than 10 ma)
Power, Output Side Less than 6 ma at 5 Vdc (supplied by Pace logger)

If used without a Pace data logger, a 3.3 to 5 Vdc power source is required.

Input Wiring

[+] Input Signal positive

[-] Input Signal return

Output Wiring

[C] Common

[S] Output

[E] Power, 3.3 V to 5 Vdc (supplied by Pace data logger)

Output signal (nominal) Linear, 1.5 to 2.5 Vdc (1.0 V span)
Warm-up time 30 milliseconds
Output Load Resistance 100 kilohms or greater (10 kilohm load adds less than 0.1% error)
IP / NEMA Rating IP 40 / NEMA 1
Enclosure Polycarbonate / ABS Blend; Color: Gray
Overall Size (with mounting tab) 2.26" high, 3.95" long, 0.72" wide;

57.6 mm x 100.2 mm x 18.1 mm

Wire Size, all screw terminals 12 - 28 AWG
Mounting Mounts on standard 35 mm DIN Rail;

Single 0.138" (3.5 mm) dia. mounting hole at Input end.

Screwdriver for terminals, maximum blade size Flat blade, 2.5 mm x 0.4 mm (0.1 x 0.016")

Number of DC Voltage Sensors that one Pace Data Logger can supply power to:

XR5-SE Data Logger: Up to five (5) DC Voltage Sensors

XR440 Data Logger: Up to three (3) DC Voltage Sensors

XR450 Data Logger: Up to four (4) DC Voltage Sensors

Some sensor combinations may reduce the above count, please contact Pace with your requirements to confirm.

If powered from an external 3.3 V to 5 V dc source, any number of Pace DC Voltage Sensors (up to the maximum number of analog channels) may be connected to a Pace Data Logger.

Part No. Range Price $US
DC-36V 4 to 38 Vdc


DC-72V 4 to 74 Vdc


Optional DIN Rail

Standard 35mm DIN Rail.

Optional DIN Rail Mounting Base for Pace DC Voltage Sensor

Length: 120 mm (4.72"), accepts up to six (6) Sensors.

Other lengths are available from multiple sources.

Part Nbr: DIN-120  Price: $7.00

XR5-SE Data Logger

XR450 Data Logger

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