Active Power Transducers

Active Power Transducers


DIN rail mounting transducers available in 55mm x 112mm or 100 x 112mm DIN  rail cases


Used to convert various inputs into standard DC signals for driving panel meters and for use in control devices.

Selection Guide

M100-WA1Single Phase
M100-WA23 phase 3 wire balanced load
M100-WA33 phase 4 wire balanced load
M100-WA43 phase 3 wire unbalanced
M100-WA5 3 phase 4 wire unbalanced load
M100-WA63 phase 3 wire balanced load externally connected
reverse CT’S

Typical Applications

The M100-WA series measures active power in single, 3 phase 3 or 4 wire balanced and unbalanced systems. Using the time division multiplier circuit means that they can be used over a wide range of input waveforms. The D.C. Output signal is directly proportional to the instantaneous power being measured. Typical applications include the measurement of power in switchboards, power stations, generating sets.

Technical Specifications

Rated value In1 or 5 amp C.T. connected 0.5-10A direct
Rated value Un57.8 < 600 volt
Power Consumption<1VA voltage <0.2VA current
Working Range0-125% Un auxiliary powered 75%-125%
self powered 0-150% In
Rated Frequency50/60/400Hz
Frequency Influence0.005% Hz
Overload Continuous4 x In 1.5 x Un
Overload for 1 sec50 x In 2 x Un
Rated value mA0-1/5/10/20 & 4-20mA
Rated value volts0-5/10 & 1-5V
A.C. Voltage115/230/400V(±25%/45-65Hz/<2VA)
D.C. Voltage24/48/110V(±20%/galvanically isolated/<3W)
M100-WA1,2,3,6,7Approx 0.6kg. 100mm case
M100-WA4,5Approx 0.8kg. 100mm case

Ordering Information

Product CodeInput InUnO/PRangeAuxFreqOpt


1Non standard Inputs/Outputs as far as technically viable
2A.C. Auxiliary in range 57.7 to 450 volts
3Calibration at nominal Hz 35….450Hz
4Calibration at temperature other than 23ºC

A.C. Current Connection Diagrams