3Sk1111 Standard Basic Unit Instantaneous (With Relay Outputs); General Information; Function Description - Siemens SIRIUS 3SK1 Manual

3SK1 devices
5.1 3SK1 standard
5.1.3

3SK1111 Standard basic unit instantaneous (with relay outputs)

5.1.3.1

General information

Article number (MLFB):
3SK1111-xAB30
3SK1111-xAW20
(x) 1 = screw-type terminal; 2 = push-in terminal
Device features:
● 2 sensor inputs (channels 1 and 2)
● 1 input for feedback circuit and START button
● 3 safety-related outputs (NO contacts),
● 1 semiconductor signaling circuit (non-safety-related circuit, NC contact)
● 2 LEDs for displaying the operating states
● Slide switch for function setting
● Single-channel or two-channel connection
● Cross-circuit detection between sensor channels 1 and 2
● Enclosure width 22.5 mm
● Removable terminals
5.1.3.2

Function description

The device is a 2-channel safety relay for EMERGENCY OFF and EMERGENCY STOP
equipment in accordance with EN 60204-1.
The 3SK1111 Standard basic unit is equipped with a positively-driven relay and monitors
itself during every ON/OFF cycle.
The safety relay has three safety-related outputs as NO circuits and one semiconductor
signaling circuit (non-safety-related circuit, NC contact).
On the front of the device there is a slide switch for function setting and two LEDs for
displaying the operating states.
48
24 V AC/DC
110 ... 240 V AC / DC
(wide-range supply)
Manual, 06/2018, A5E02526190021A/RS-AD/004
SIRIUS 3SK1 safety relays