The 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.
Input | Voltage | 2x 220/230/240 V + N |
Voltage tolerance | 180 / 264 Vac (Ph-N) | |
Frequency | 50Hz / 60Hz | |
Frequency window | 2-10% adjustable | |
Slew rate | 1-4Hz/sec (selectable) | |
Output | Transfer type | Break before make |
Transfer methods | Automatic / Manual / Remote | |
Transfer time | < 4 msec (S1-S2 synchronized) | |
< 10 msec (S1-S2 not synchronized) | ||
Overload | 150% for 1 min. / 200% 10 seconds | |
Power Factor | 0.6 lag to 0.9 lead | |
General | Ambient temperature | -20 to +70 °C storage / -10 to +40 °C operation |
Altitude above sea level | 1000 m | |
Enclosure | Aluzinc frame / powder coat RAL 7035 | |
Standards | Safety IEC/EN 62040-1 / EMC 55011 | |
Conformity | IEC 60146 / CE-Label |