WebMeter48™ S-Series

The WebMeter48S™ represents the next generation of affordable intelligent metering for your electrical network. The compact module is designed for installation into switchboards, distribution centers, MCCs, or any other UL Listed enclosure. The WebMeter48S™ accommodates up to 48 current transformers in any configuration from 40A-6000A up to 600V. Sampling rates up to 200,000 samples/second, the WebMeter48S™ delivers accuracy at the circuit-level and reports the information every 2 seconds to the CircuitMonitoring™ system.

The WebMeter48S™ is a powerful electrical metering solution allowing for widespread granular monitoring for industrial, commercial, institutional and multi-residential installations.

At a dramatically lower cost per circuit and with easy installation, the WebMeter48S™ is designed for economic deployment across a portfolio of facilities while metering down to the individual circuit and equipment level.

Monitoring Capabilities

WebMeter48™ Series

  • E-Series: UL Listed energy meter
  • S-Series: UL Registered energy meter

WebMeter48S™ Attributes

  • Produces up to 334 data points including amps, voltage, real power, energy consumption, power factor, reactive and apparent power, and operating “time on”
  • UL Registered unit meeting all UL 61010 (UL, CSA, CE)
  • To be installed in a UL Listed enclosure
  • Support for measuring up to 600VAC
  • Support to accommodate any combination of single, poly and three phase loads up to 48 current interrupters
  • Supports current transformers up to 6000A supplied by CircuitMeter
  • All features supported by the CircuitMonitoring™ system
  • One year memory @ 15 min intervals for energy consumption and generation when internet is offline
  • Rechargeable capacitor maintains clock for 24 hours
  • Voltage reference (true RMS readings)
  • Supports global AC mains voltages 208V, 240V, 380-415V, 480V, 600V

Easy Installation

  • Safely install inside UL registered enclosure
  • Unique design to safely connect internet Cat5e cable
  • Spring clip connectors for current transformer secondary wires and voltage wires

Connecting to the Internet

  • Industry standard RJ45 jack (T586B)
  • Fully encrypted UDP protocol
  • Cloud software configuration
  • Automatic remote updates

Supported AC Power Systems

  • 3 phase 4 wire 208 Wye/120V (3 Lines + neutral)
  • 3 phase 4 wire 380 Wye/230V (3 Lines + neutral)
  • 3 phase 4 wire 415 Wye/240V (3 Lines + neutral)
  • 3 phase 4 wire 480 Wye/277V (3 Lines + neutral)
  • 3 phase 4 wire 600 Wye/347V (3 Lines + neutral)
  • 3 phase 3 wire delta 208/240/380/415/480/600 V no neutral
  • 1 phase 3 wire 120/240 V (a.k.a. split phase) with neutral

All configurations 50 – 60Hz (60V is 60Hz)


Safety Standards

  • UL 61010-1
  • UL 61010-2-030
  • CAN/CSA C22.2 No. 61010-1:2012
  • CAN/CSA C22.2 No. 61010-2-030-12
  • CE
  • Hi-pot test: 5.4 KV (5 seconds) 3.6 KV (60 seconds)
  • RoHS compliant


  • ANSI C12.20 0.5 Accuracy Class


WebMeter48™ S-Series

  • WebMeter48-240S (Canada, USA)
  • WebMeter48-400S (Europe)
  • WebMeter48-480S (USA)
  • WebMeter48-680S (Canada, USA)

Mechanical & Dimensions

Weight: 450g (0.99 lbs)
Size – with flange: 39.64 cm / 15.60 in (L)
14.55 cm / 5.73 in (W)
68.10 cm / 23.66 in (D)
Mounting Holes: 35.66 x 17.88 cm
(14.04 x 7.04 in)


Operating Temp: +40C to +400C
Storage Temp: -300C to +700C
Humidity Range: 10 to 80%

Voltage Inputs

Voltage Range: 240 – 600 VAC
Sampling Rate: 200,000 samples/sec
Connector Type: Push-in spring clips

Current Transformer Inputs

Sampling Rate: 12,500 samples/sec
# of supported CTs: 48 – supporting any combination of 1/2/3 phase circuits
CT Type: mA self shorting
Available: 40A – 6000A
Connector Type: Push-in spring clip
Current transformers from CircuitMeter
Solid Core
CT040, CT100, CT200
Split Core
SP040, SP100, SP200, SP400, SP600, SP800, SP1500, SP2000, SP3000, SP6000

Data Outputs

Internet Connection: Cat5e (T586B)
Protocol: UDP
Display: 2-Line Backlit LCD