Energy KWh Meters
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Energy Division Crompton Instruments Kilowatt Hour Energy Meters >

An extensive range of DIN-rail, panel mounting and ANSI style Kilowatt products which measure thereal consumption of active energy. These instruments are ideal for secondary metering in switchgear, plant instrumentation and process control applications offering considerable advantages over traditional mechanical Ferraris disc type.These models incorporate an electro-mechanical kWh counter or LCD display with associatedelectronics within the instrument case. Requiring no maintenance, the kWh energy meters support energy efficiency and awareness whilst ensuring systems remain balanced and...

Active energy accuracyClass 2 Input frequency45 - 65Hz Nominal input voltage230V Input voltage tolerance֖15% to +10% of nominal Nominal input voltage burden4VA Input currentBase 15A Startup current50mA Max continuous input current 22.5A > Nominal input current burden 2VA > Current measurementInternal shunt System CT ratiosDirect connection up to 22.5A Pulsed outputOpto-isolated Pulse duration75 milliseconds Pulsed frequency1 per 0.1kWh Counter5-digit + 1 decimal point mechanical counter Reading resolution0.1kWhLED indicator displayGreen power supplyRed ֖ active power consumption @ 1 beat...

Active energy accuracyClass 2 Input frequency50 - 60Hz Nominal input voltage 230V ac Input voltage tolerance ֖15% to +10% of nominal Nominal input voltage burden <2.5VA Nominal input current 5A Startup current 15mA Max continuous input current 6ANominal input <2.5VA Current burden Current measurement Internal current transformerSystem CT ratios 5, 10, 25, 50, 75, 100, 125, 150, 200, 250, 300, 400, 500, 600, 800, 1000A > Pulsed output Opto-isolated > Pulse duration <100 milliseconds Pulsed frequency 1 per kWh Pulse capacity 3 - 30V dc, <20mA Counter 7-digit mechanical counter Reading...

Active energy accuracy Class 2 Input frequency 50 - 60Hz Nominal input voltage 400V L-L (230V L-N)) Input voltage tolerance15% to +10% of nominal Nominal input voltage burden <2.5VA Nominal input current 5A Startup current 15mA > Max continuous input current6A Nominal input current burden <2.5VA > Current measurement Internal current transformerSystem CT ratios 5, 10, 25, 50, 75,100, 125, 150, 200, 250, 300, 400, 500, 600, 800, 1000A Pulsed output Opto-isolated Pulse duration <100 milliseconds Pulsed frequency 1 per kWh Pulse capacity3 - 30V dc, <20mA Counter 7-digit mechanical counter...

Input frequency 50 - 60Hz Nominal input voltage 230V ac Input voltage tolerance Ζ15% to +10% of nominal Nominal input voltage burden 2VA Digital communications RS485 interface Modbus > protocol Band handling Dual charge Baud rate 9600 bits per second > Error detection method Longitudinal redundancy checkMax number of contactors Up to 8 input signals > ή (1 and 3-phase) > Pulse input duration <100 milliseconds LED indicator display Green power supply Red ֖ data transit via RS485 Enclosure material Class V-0 in accordance with UL94Compliant with IEC EN 61010-1, IEC EN 50081-1, IEC EN 50082-1,...

Active energy accuracyClass 1 in accordance with CEI-EN 62053-21 Input frequency50-60Hz Nominal input voltage230V ac Input voltage tolerance-15% to +10% of nominal voltage Nominal input voltage burden <2.5VA Max input current63A Current input Ib10A Start-up current40mA Nominal input power burden<2.5VA > Pulsed outputOpto-isolated, open collector > Pulsed voltage9-24 V dc +/-10% (switchable O/P current 20mA max) Pulsed duration100 milliseconds +/-15% Pulsed frequency1 per 0.1kWh DisplayLCD 7 + 5-digit Reading resolution0.1kWh and/or 0.1MWh (automatic)LED indicator displayGreen Power supply...

Active energy accuracyClass 1 in accordance with CEI-EN 62053-21 standard Input frequency50 - 60Hz Nominal input voltage3 x 230V ac L-N (400V L-L) Input voltage tolerance-15% to +10% of nominal voltage Burden< 2.5VA Max input current90A Input current Ib10A Start-up current40mA Pulsed outputOpto-isolated, open collector type > Pulsed voltage9-24V dc +/-10% (switchable O/P current 20mA max) > Pulsed duration100 milliseconds +/-15% Pulsed frequency1 per 0.1 kWh DisplayLCD 7 + 5-digitReading resolution0.1 KWh from 0000000.0KWh 999999.9KWh 1 KWh from 1000000KWh to 9999999KWh (Automatic)LED...

This Class 1 instrument uses microprocessor controlled circuitry for optimumperformance and accuracy. Incoming voltage and current signals are converted into numbers representing instantaneous values. These are then multiplied together to give the instantaneous power. This sampling is repeated many times during each waveform cycle allowing theaccurate measurements of distorted waveforms. Incoming power is indicated by the pulsing red LED indicator. Accumulated values are registered on the energy counter. > The 240 Hђ series of kWh meters is a major upgrade in a product range offered by Tyco...

The following 5 models all measure Watts or VArs but come with varying displayoptions. All models can have optional analogue kW signal terminals and kWh pulse terminals at the rear. Analogue output is not available on the LCD counter version. > This model incorporates a 7-digit auto-resetting* electro-mechanical kWh orkVArh counter. Relay or opto-isolator pulsed output and analogue output options are also available. The optional analogue output shows the instantaneous Watts or VArs on a separate analogue indicator.* Automatically resets to 0000000 at 9999999 > This model incorporates a...

Dielectric withstand2.3KV for 1 minute Pulsed duration250 milliseconds > + /- 15% Pulse/hour1 per kWh Min 100/hour Max 10,000/hour CounterCounts 999999 then resets to 0. Height 4mm Analogue response time2.5 seconds to full scale. Overshoot 33% max. > Input voltage tolerance-20% to +10% of nominal voltage Input voltage max burden1VA Input current1A or 5A. CT operated Input current max burden2VA Dielectric withstand2.3KV for 1 minute > Input voltage (aux)120V, 240V dc input (from transducer)1mA, 4-20mA, 0-5V & 0-10V > DescriptionCat. no. Transducer indicator - standard077-KHAU >