Data Sheet
Data sheet 3TK2810-1KA41
SIRIUS safety relay Safety-oriented Speed monitoring 110-240 V
AC/DC, 45 mm overall width Screw terminal EC instantaneous: 2 NO
EC delayed: 0 SC: 2 electrical Auto-start/manual start Basic device
Maximum achievable PL according to EN 13849-1: e Maximum
achievable SIL according to IEC 61508: 3
General technical data
Product brand name SIRIUS
Product designation Speed monitor
Design of the product standstill and speed monitoring
Protection class IP of the enclosure IP20
Protection class IP of the terminal IP20
Protection against electrical shock finger-safe
Insulation voltage rated value 300V
Ambient temperature
● during storage
-20...+70°C
● during operation
0...60°C
Air pressure acc. to SN 31205 90...106kPa
Relative humidity during operation 10...95%
Installation altitude at height above sea level
maximum
2000m
Vibration resistance acc. to IEC 60068-2-6 10 ... 55 Hz: 0.35 mm
Shock resistance 8g / 10 ms
Surge voltage resistance rated value 4000V
EMC emitted interference EN 60947-5-1
3TK2810-1KA41 Subject to change without notice
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09/13/2019 © Copyright Siemens







