Static Transfer SwitchThe TECNED ST-D Static Transfer Switch series is available with single phase input /output 220/230 or 240Vac and current ratings from 25A to 500A.
The ST-D series can be supplied as a 1-pole or 2-pole static switch to meet customer requirements for safety and reliability. Standard features include input V metering, mains S1-S2 out of tolerance alarm and general alarm with potential free contacts and input/output fuse monitoring.
The ST-D includes a digital controller with LCD display that shows the systems current state of operation and system values, allows setting of system parameters and includes event and alarm logs.
Option list ST-DExtend to 12x PFC (NO/NC) with LED
Individual fuse failure indicator
Fan failure alarm
3-position mechanical bypass
Up to 6 (DIN 96) meters / cabinet
Specifications ST-D 25-500A
2x 220/230/240 V + N
180 / 264 Vac (Ph-N)
50Hz / 60Hz
Break before make
Automatic / Manual / Remote
|Transfer time||< 4 msec (S1-S2 synchronized)|
< 10 msec (S1-S2 not synchronized)
150% for 1 min. / 200% 10 seconds
0.6 lag to 0.9 lead
-20 to +70 °C storage / -10 to +40 °C operation
|Altitude above sea level||
Aluzinc frame / powder coat RAL 7035
Safety IEC/EN 62040-1 / EMC 55011
IEC 60146 / CE-Label