DTS SKT Series


Socket meter with Remote Communications

  • ANSI C12.20 – Revenue Grade
  • 208-240Vac L-L or 120-480Vac L-L
  • BTL Listed
  • Ethernet, RS-485 or Pulse (kWh) connectivity
  • Modbus TCP, BACnet/IP, SNMP or DNP 3.0 
  • Modbus RTU, BACnet MS/TP
  • 100A, 200A internal CTs (optional: 320A) or 5A CT inputs
  • Conveniently offered in most Form Factors
  • Bi-directional for renewable systems (NET metering)
  • Integral 2 line LCD display
  • Optional Digital Output
  • The specifications above are model dependent.

The selection fields below are in the same order as the “Model Number Builder” on page 2 of the DTS SKTD datasheet (2 Mb) [PDF]

DTS SKTD – ab – cd – e – f – g

Data Sheets & Downloads


DTS SKT Datasheet (2 Mb) [PDF]


DTS RS-485 Meter Setup using DTS Config & CCOM-0017 (1.7 Mb) [PDF]
RS-485 Cabling Requirements for Modbus RTU and BACnet MSTP (161.3 Kb) [PDF]
Guide for Extending CT Cable Length (118.6 Kb) [PDF]
Configuring Digital IO using DTS Config (621.5 Kb) [PDF]


Download DTS Config (Modbus ONLY) (2 Mb) [ZIP]
Download DTS Toolbox (9.2 Mb) [ZIP]
Changing IP settings for an Ethernet based DTS meter (1.4 Mb) [PDF]
BACnet Explorers – 3rd party tools

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

DTS Modbus Map (732.5 Kb) [PDF]
DTS Modbus Addendum (SunSpec) (353.9 Kb) [PDF]
DTS BACnet MS/TP Map (539.8 Kb) [PDF]
DTS BACnet/IP Map (182.2 Kb) [PDF]
DTS LonWorks Map (274.7 Kb) [PDF]
DTS SNMP Map (146.1 Kb) [PDF]
— DTS AC Meters MIB File (2 Kb) [ZIP]
— DTS DC Meters MIB File (986 B) [ZIP]
DTS DNP 3.0 Map (157.1 Kb) [PDF]

DTS Logging System (308 Kb) [PDF]

Product Description

Use the DTS SKTD Class 0.5 “Smart” submeters to replace existing electro-mechanical energy consumption metering for improved efficiency, reliability and power quality. These replacement socket submeters support most accepted protocols, including embedded ethernet connectivity for Modbus/TCP, BACnet/IP, SNMP or DNP 3.0 as well as communication via an RS-485 connection, supporting Modbus RTU and BACnet MS/TP. They easily integrate with Building Automation Systems and Energy Monitoring Software.

The DTS SKTD is certified ANSI C12.20 – Revenue Grade, the highest accuracy of any meter. The DTS SKTD is available with optional kWh (Energy) pulse output. The meter includes a 2 line Integral LCD display. For remote configurability, all the DTS Series of meters come with our free DTS Config software platform where you can conveniently choose from over 200 parameters at the frequency you require. Also, if in the future, you decide to integrate renewable energy sources, the DTS Series will conveniently operate as Bi-directional NET meters. The DTS SKTD are designed and manufactured in the USA and comply with the Buy American Provisions of ARRA Section 1605.

Why Energy Socket Replacement?

  • To upgrade existing electro-mechanical meters
  • Access to smart meter technology
  • Remote access to meter data
  • Multiple form factors available (2S, 9S and 16S are the most common)


  • “Smart” submeter replacement for existing electro-mechanical meters
  • Class 0.5 Energy Meter** (ANSI C12.20) – “Revenue grade”
  • Bi-directional for renewable systems (NET metering)
  • Socket Form Factors
    2S, 9S and 16S are the most common
  • Other form factors available (please contact us)
  • Embedded Ethernet connectivity – Modbus/TCP, BACnet/IP, SNMP or DNP 3.0
  • RS-485 connectivity – Modbus RTU or BACnet MS/TP
  • Digital output (N.O. solid state relay) – optional
  • Integral 2 line LCD display (DTS SKTD)
  • User configurable using DTS Config software
  • User-definable Modbus register area
  • Compatible with PowerStudio Energy management and control software suite
  • Integrates seamlessly with AcquiSuite data acquisition server
  • SunSpec Alliance compatible
  • Designed and Manufactured in the USA. Complies with Buy American Provisions of ARRA Section 1605

Popular Form Factors

  • 2S (Single phase – typical Residential form factor) can have either 100A or 200A internal CT(s)
  • 9S (3 phase – Commercial & Industrial) has external CTs, over 200A
  • 16S (3 phase – Commercial & Industrial) can be provided with 100A or 200A internal CTs


Measuring Circuits

Nominal Voltage: depending on form factor and model, range is -10% to +10%
Permanent overload: 1.1 x nominal voltage
Voltage burden: <0.1 VA @ 280 V ac L-N
Frequency: 45 to 65 Hz
Rated current: depending on form factor and model
Permanent overload: 1.5 x In for 5A version
Current input burden: 0.5 VA @ 5 A

Mechanical Characteristics

Connection: Socket base
Case Material: Self-extinguishable, V0 plastic
Protection: NEMA 4
Dimensions: 7”(178mm)[ x 7.48”(190mm)Depth
Weight: 2.13 lbs (950g) DTS-SKT
2.31 lbs (1050g) DTS-SKTD

Communications (Serial)

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

Add-On Products