13-105© Siemens AG 2007 All Rights Reserved
SICLOCK
®
TC 400
Technical Data 13
Table 13-1 Technical data of the SICLOCK TC 400
Dimensions 180.0 x 88.9 x 47.0 (WxHxD in mm)
Weight Approximately 750 g
Supply voltage 24 VDC (-15% to +20%) at X1
Power supply Continuous current max. 0.7 A
Transient voltage interruption Max. 3 ms (at 20.4 V to 28.8 V)
Power consumption Max. 15 W
Power loss Typ. 7.5 W
Fuse (external) 1 A time-lag
Degree of protection IP 20
Mounting type 35 mm DIN rail
DIN rail EN 50022-35 (15 mm high) or SIMATIC standard mounting rail
Safety
Product standard EN 61131-2 (environment)
Test voltage Circuits with nominal voltage Ue <50 V relative to other circuits or
ground, test voltage 500 VDC
Protection class Protection class III according to EN 60536
Electrical safety EN 60950-1
Time properties
Accuracy with regard to the
GPS signal
< 50 µs
Accuracy with regard to the
DCF77 signal
< 1000 µs
Accuracy if GPS signal fails < 50x10
-9
Accuracy if DCF77 signal fails < 1x10
-6
Accuracy if power supply fails < 4x10
-6
Time correction through
microstepping
< 50 µs/s
Jitter during GPS operation < 200 ns/s
Reserve power See battery
Battery
Service life during operation > 12 years
Service life during storage, dis-
connected
> 12 years
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