PRODUCTS

STS4000 SERIES

Static Transfer Switches

50A - 100A - 150A - 200A - 250A - 300A - 400A - 600A - 800A

TESCOM STS4000 Static Transfer Switches

Tescom STS, allows instantaneous transfer of power sources to the load. If one power source fails, the STS switches to the back-up power source so fast that the load never recognizes the transfer made.


• Increased power quality
• Increased noise reduction
• Power blackout protection
• Power redundancy
• Automatic static switching
• Remote monitoring input power sources
• Easy static and mechanical transfer to input sources
• Remote management the power events
• Power event logging
• Output current capability up to 100% for short time
• 2 years warrantly
• 10 years spare parts support
• Manufactured according to EC Directive; EN62310

MODEL
STS3050
STS3100
STS3150
STS3200
STS3250
STS3300
STS3400
STS3600
STS3800
STS4050
STS4100
STS4150
STS4200
STS4250
STS4300
STS4400
STS4600
STS4800
Nominal current
50 A
100 A
150 A
200 A
250 A
300 A
400 A
600 A
800 A
ELECTRICAL DATA
Input voltage (Ph-Ph)
380/400/415 VAC 3P + N + G
Input voltage tolerance
180-264 VAC (PH-N)
Input frequency
50Hz / 60Hz
Input frequency range
48-65Hz (upper and lower limits adjustable)
Efficiency (at full load)
> 99%
Input voltage THD
< 10%
Transfer type
'Break before make''
Transfer methods available
Automatic / Manual / Remote
Transfer control
synchron
with adjustable delay (non synchron)
zero current (non synchron)
Transfer time
< 4 msn for synchronous sources
< 10 msn for non-synchronous sources
Switching type
3-Poles: 3 phase switching / 4-Poles: 3 phase + Neutral switching
Output current crest factor
3:1
Admissible overload 
0% - 100% continuous
101% - 150% 1 min.
151% - 200% 10 seconds
> 200% 250 msec
Protections
Output overload and short circuit protection, Overtemperature protection, Backfeed protection, SCR fault protection
LCD panel and mimic
Standard
Communication
RS232 standard, RS485 optional
TCP/IP connection
Optional
Dry contacts 
4 programmable relay outputs
Two serial ports
Optional
Temperature sensor
Standard for internal cabinet temperature
ENVIRONMENTAL DATA
Cooling
Forced cooling (redundant fans)
Operating temperature
0°C - 40°C
Storage temperature
-10°C up to +50°C
Relative humidity 
90% max. (non condensing)
Protection degree
IP20
Standards
EN62310-1, EN62310-2
Acoustic noise
< 52 dBA
< 55 dBA
< 60 dBA
MECHANICAL DATA
Weight (kg) (STS3000 Series)
139
145
165
195
205
230
240
340
ask for info.
Weight (kg) (STS4000 Series)
160
175
190
205
235
240
255
375
ask for info.
Dimensions (mm) HxWxD
1500x680x540
1770x680x585
1905x915x725
ask for info.