DIN RAIL MOUNT / Self-Powered

  • Compact – 4.73” L x 1.38” W x 4.25” H
  • ETL Listed, CE, BTL Listed, SunSpec certified
  • 0 – 50, 150, 400, 800 or 1000Vdc
  • Voltage, Current, Power and Energy measurements
  • Ethernet or RS-485 connectivity
  • Modbus TCP, BACnet/IP, SNMP or DNP 3.0
  • Modbus RTU, BACnet MS/TP or LonWorks
  • Bi-directional for renewable systems (NET metering)
  • Works with DC Shunts or Hall Effect current sensors
  • Options include: Digital Input/Outputs, DC Auxiliary
  • The specifications above are model dependent.

Product Description

The DTS DC has a very compact DIN rail design and requires no external power source to operate; also comes standard with color coded, pluggable connectivity. This DC meter can handle a voltage input of 0 – 50, 150, 400, 800 or 1000Vdc. It provides Voltage, Current, Power and Energy measurements. It works with DC Shunts and external Hall Effect current sensors.

For easy configuration in-the-field, communications can be set via 8-way DIP switches when utilizing the Modbus RTU protocol. Or for remote configurability, all of our DTS Series of meters come with the free DTS Config software platform; where you can conveniently choose from over 200 parameters at the frequency you require. The DTS DC meter comes with a User-definable Modbus register area. Whether communicating via RS-485 or Ethernet, the DTS DC supports most accepted protocols, including Modbus RTU, Modbus TCP, BACnet MS/TP, BACnet/IP, SNMP, DNP 3.0 or LonWorks (model dependent).

This meter is available with optional digital status/counter inputs OR digital outputs. Also, if in the future, you decide to integrate renewable energy sources, the DTS Series will conveniently operate as a Bi-directional NET meters. The DTS DC is SunSpec Alliance certified and easily integrates with Building Automation Systems and Energy Monitoring Software. All the DTS Series is designed and manufactured in the USA and complies with the Buy American Provisions of ARRA Section 1605.


  • DC power / energy sub-meter provides Voltage, Current, Power and Energy measurements
  • Bi-directional for renewable systems (NET metering)
  • Interfaces with shunt or external Hall Effect current sensors
  • Up to 1000Vdc Voltage input
  • Embedded Ethernet connectivity – Modbus/TCP, BACnet/IP, SNMP or DNP 3.0
  • RS-485 connectivity – Modbus RTU or BACnet MS/TP
  • Communications setting via DIP switches for Modbus RTU protocol
  • LonWorks FT-10 communications
  • 2 digital status/counter inputs OR digital outputs – optional
  • Compact DIN rail design
  • User configurable using DTS Config software
  • User-definable Modbus register area
  • SunSpec Alliance certified
  • Designed and Manufactured in the USA. Complies with the Buy American Provisions of ARRA Section 1605


Measuring Circuits

Voltage range: 0 – 50, 150, 400, 800 or 1000Vdc
Permanent overload: 1.2 x (1.05x for 800Vdc range)
Self powered: 120-400 Vdc, 420 Vdc
MaxInput Impedance: 1MΩ for 400Vdc range & 2MΩ for 800Vdc range
Current Input Options: 0 – 5A (direct input)
>5A (external current shunt or Hall effect sensor)
Permanent overload: 1.25 x In
Shunt: 50 – 100mV (configurable)
Hall Effect sensors: 0-4Vdc or 0-5Vdc, 0-20mA or 4-20mA


Voltage: 0.5% (10-110%)
Current: 0.5% (10-120%)
Power: 0.5% (10-120%)
Energy: 0.5% (10-120%)

Aux Supply (Not required for self-powered)

Voltage options: 12Vdc, 24Vdc or 48Vdc
Burden: <3VAIsolation: 1500Vdc
Operating temp: -4º to 131ºF (-20º to 55ºC)
Tolerance: -25%, + 50%
Storage temp: -40º to 185ºF (-40º to 85ºC)
Humidity: 5 to 95%
R.H. non-condensing

Mechanical Connection

Pluggable screw terminals suitable for 12AWG stranded wire (2.5mm2)
Case Material:
Self-extinguishable, V0 plastic
Protection: Nema 1 (IP40)
Dimensions: 4.73”(120mm) D x 4.25”(108mm) H x1.38”(35mm) W
Weight: 1lb (0.45 kg)

Communication (Serial)

Connection: 3 way pluggable, screw terminal
Protocols: Modbus RTU or BACnet MS/TP

Communications (LonWorks)

Connection: 2 way pluggable, screw terminal
Protocols: LonWorks FT-10

Communication (Ethernet)

Connection: RJ45, 10/100Base-T
Protocols: Modbus TCP or BACNet/IP or SNMP or DNP 3.0 over IP
Limits: Not available for 800Vdc range

Pulse / Status Outputs (Optional)

Type: Potential Free, N.O. Solid State Relay
Pulse Width: 100 mS default
Min 50 mS, User configurable up to 10 Seconds
Max 10 Pulses per Second
Pulse Rate: 1 Pulse / 1 kWh default, User configurable
Max On-Resistance: 30 ohm
Max switching voltage: 240Vac
Max switching current: 120mA (350mA for 10mS)
Connection: Isolated Pin-Pair (Output 3, Outputs 1 and/or 2)

Counter / Status Inputs (Optional)

Type: Dry Contact
Min Pulse Width: 50mS, Max 10 Pulses per Second
Max Current/Voltage: 15mA / 6V
Connection: 2 Pin-Pairs (Inputs 1 and/or 2)

Standards & Safety

ETL listing: Pending
Designed to: UL Std 61010.1
CSA Std C22.2 # 61010.1
EMC: IEC 61000-6-3 Emissions, IEC 61000-6-2 Immunity, IEC 61000-4-2, IEC 61000-4-3, IEC 61000-4-4, IEC 61000-4-5, IEC 61000-4-6, IEC 61000-4-8, IEC 61000-4-11
FCC: CISPR 22/FCC 15 class A
Other: IEC60688
Category III – 280Vac / 485Vac

Data Sheets & Downloads


DTS DC Brochure (2.1 Mb) [PDF]
DC Shunt Datasheet (1 Mb) [PDF]
DC Hall Effect Sheet (1.8 Mb) [PDF]
Right Angle Bracket Datasheet (1.3 Mb) [PDF]


DTS DC – Quick Start Guide (94.8 Kb) [PDF]


Download DTS Config (1.8 Mb) [ZIP]
Download DTS Toolbox (9.2 Mb) [ZIP]

View Software / Drivers page for more details & current version info.

DTS Modbus Map (456.4 Kb) [PDF]
DTS Modbus Addendum (SunSpec) (215.4 Kb) [PDF]
DTS BACnet MS/TP Map (369 Kb) [PDF]
DTS BACnet/IP Map (182.2 Kb) [PDF]
DTS LonWorks Map (150 Kb) [PDF]
DTS SNMP Map (146.1 Kb) [PDF]
DTS DNP 3.0 Map (157.1 Kb) [PDF]

DTS Logging System (308 Kb) [PDF]

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