Technical Data



Height, front panel 3 U
Width, front panel 19’’
Depth (incl. connectors) 455 mm


Operating temperature +5 °C to +35 °C / +41 °F to +95 °F
Relative humidity 0 % to 94 % (non-condensing)

High current channels

Number 64
Maximum permissible voltage 30 V
Maximum permissible current 20 A

High voltage channels

Number 16
Maximum permissible voltage 80 V RMS/250 V Peak
Maximum permissible current 10 A

Resistor cascade

Number of resistors 14
Smallest resistance 2 Ω
Largest resistance 16384 Ω
Max. total resistance Approx. 32 kΩ
Max. permissible current through the cascade 3 A with 14 V voltage drop
1 A with 30 V voltage drop

Time response

Duration from receipt of switch command
at the ES4440 to conclusion of
the switch procedure
MOSFET 200 μs
Relay 5 ms
Error duration MOSFET 1 ms to 60 s or ∞
Relay 20 ms to 60 s or ∞

Electrical data

Input voltage 100 V to 240 V AC
Mains frequency 50 Hz to 60 Hz
Power input 70 W

This product has been developed and released for use in automotive applications. For usage in other domains please contact your ETAS representative.