EL3446 - Technical data

Number of inputs

6 x current

Technology

6-Channel Distributed Power Measurement

Oversampling factor

–

Internal sampling rate

approx. 9.7 ksps (per channel)

Sampling type

simultaneously across all channels

Ground reference

single ended

Distributed clocks

optional (required for distributed power measurement)

Update interval

one mains period (20 ms at 50 Hz)

Update time

mains-synchronous

Measured values

Current, voltage, active power, reactive power, apparent power, active energy, reactive energy, apparent energy, cos φ, frequency, THD, harmonics (up to 40th harmonic)

Measuring current

max. 1 A (AC/DC), via measuring transformer x A/1 A

max. 100 mA (AC/DC), via measuring transformer x A/100 mA

Measuring error

0.3 % relative to the full scale value (U/I), 0.6 % calculated values (see documentation)

Measuring procedure

true RMS

Electrical isolation

2500 V

Current consumption Power contacts

–

Current consumption via E-bus

120 mA typ.

Special features

Together with an EL3443, the EL3446 enables the measurement of real power values (for apparent, reactive and active power) via Distributed Power Measurement.

Configuration

via TwinCAT System Manager

Weight

approx. 75 g

Dimensions (W x H x D)

approx. 15 mm x 100 mm x 70 mm (width aligned: 12 mm)

Installation

on 35 mm mounting rail, conforms to EN 60715

Permissible ambient temperature range during operation

0 °C ... +55 °C

Permissible ambient temperature range during storage

-25 °C ... +85 °C

Relative humidity

95%, no condensation

Vibration/shock resistance

conforms to EN 60068-2-6 / EN 60068-2-27

EMC immunity/emission

conforms to EN 61000-6-2 / EN 61000-6-4

Protection rating/installation position

IP20/any

Marking/certification^*)

CE, EAC, UKCA
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