Synchronizing Relay CSQ-3 (Synchroscope) – Deif

Synchronizing relay (synchroscope) from Deif, model CSQ-3, used to monitor and synchronize voltage, frequency, and phase between systems. 

General information 

Description: CSQ-3 
Type: Synchronizing relay / synchroscope 

Electrical data 

Frequency range: 40–70 Hz 
Accuracy: ±2 electrical degrees 
Resolution: 10 degrees 
Max frequency difference: No limit 

Input voltage 

UN ranges: 
100–127 V AC 
220–240 V AC 
380–415 V AC 
440–480 V AC 

Relay output 

Type: 1 x SPST NO 
AC1: 8 A / 250 V AC 
AC15: 3 A / 250 V AC 
DC1: 8 A / 24 V DC 
DC13: 3 A / 24 V DC 

Environmental 

Temperature: -25 °C to +70 °C 
Protection (front): IP52 
Protection (terminals): IP20 
Isolation voltage: 3750 V 

Connection 

Terminal type: Screw 
Max wire size: 2.5 mm² 

Function 

Monitors phase angle 
Synchronizes voltage and frequency 
Ensures safe system connection