User manual

Static Transfer Switch
UNB
User Manual
Page 25 (28)
ELTEK VALERE DEUTSCHLAND ©2009 UM_UNB_E_R04
7. Technical Specifications
Type designation Please see section 1 “Type List/Main Data”
Material code Please see section 1 “Type List/Main Data”
AC input:
Nominal input voltage source 1 + 2 220/230/240V
AC, adjustable
Input voltage tolerance ±20%
Input frequency range 48- 52Hz/ 58-62Hz, adjustable
Synchronization range ±2Hz (in combination with inverters of series PWS the range must
be adjusted to ±0.5Hz).
Efficiency ≥ 99%
DC Voltage input:
Nominal battery voltage
Please see section 1 “Type List/Main Data”
AC Output:
Nominal output voltage 220/230/240V
AC, adjustable, switch over threshold ±5 to ±20%,
adjustable
Nominal output power
Please see section 1 “Type List/Main Data”
Overload capability 1000% for 10ms
Output frequency acc. to the input frequency
Switch transfer time ≤3ms
Fusing External with rated current, character gL
Standard Features:
Monitoring functions voltage/frequency of sources 1 and 2; synchronization mains/
inverter; over temperature; CAN communication lost; battery volt-
age
LED indications Operation (green), source 1 OK (green), source 2 OK (green), load on
mains (green), load on inverter (green), synchronization (green),
collective alarm (red)
Alphanumeric display LCD (4 x 16 characters), background lighted
Control keys
 , , ESC, ENTER
Fault signalization Text message on LCD; in addition 1 programmable isolated collec-
tive failure (alarm) relay, max. contact load: <0.25A
DC @ Vmax <
150V
DC; <0.5ADC @ Vmax <100VDC
Communication interface CAN-Bus for communication with inverters of type UNV
Remote switch ON available