Potential supply terminal, TwinSAFE, 24 V DC, 10 A EL2901
Diagnostic 3, 4 
Diagnostic 1, 2 
Output 1, 2 
Output 1+
Output 1-
Top view 
Contact assembly 

EL2901 | Potential supply terminal, TwinSAFE, 24 V DC, 10 A

The EL2901 Safety EtherCAT Terminal is a potential power supply terminal and enables the setting up of TwinSAFE groups with safe power supply (24 V DC, up to 10 A). If the TwinSAFE Terminal detects a fault, it switches to safe state (fail safe). Safe potential groups can be created within a terminal strand using the EL2901. The EL2901 meets the requirements of IEC 61508 SIL 3 and DIN EN ISO 13849 PL e.

Technical data EL2901
Connection technology 1-/2-wire and/or via power contacts
Technology potential supply terminal
Safety standard DIN EN ISO 13849-1:2008 (Cat 4, PL e) and IEC 61508:2010 (SIL 3)
Number of outputs 1
Protocol TwinSAFE/Safety over EtherCAT
Status display 5 LEDs: 1 power, 4 diagnostic
Current consumption E-bus approx. 221 mA
Fault response time ≤ watchdog time (parameterisable)
Bit width in the process image input: 6 byte; output: 6 byte
Supply voltage 24 V DC (-15 %/+20 %)
Max. output current 10 A
Nominal voltage 24 V DC (-15 %/+20 %)
Current load ≤ 10 A
Power LED green
Electrical isolation 500 V
Special features safe power supply
Weight approx. 90 g
Operating/storage temperature 0…+55 °C/-40…+70 °C
Permitted degree of contamination 2
Climate class EN 60721-3-3 3K3
EMC immunity/emission conforms to EN 61000-6-2/EN 61000-6-4
Vibration/shock resistance conforms to EN 60068-2-6/EN 60068-2-27
Installation position horizontal
Protection class IP 20
Product announcement
certification in preparation