Voltage adjustment:
permissible voltage difference: 0.1...15.0 %
Relay switch-on time: 20...250 ms
Frequency adjustment:
permissible frequency difference: +/- 0.49 Hz
Relay switch-on time: 0.04...0.5 s
Inherent delay of the synchronization switch: 40...300 ms
LED display for:
- Enable CB 
 - Connection pulse 
 - Reply: CB is closed 
 
Buttons to:
- Scroll display or confirm selection 
 - Increase digit 
 - Reset and cursor function 
 
Illuminated two-line LC display to indicate:
- Double voltage and frequency 
 - Voltage and frequency difference 
 - Phase shift 
 - Parameters 
 
- Contact load capacity: 250 V AC, 2 A
- Measured values: V = 50-400 V AC, f = 40-70 Hz