SIEMENS 3UG5642-2CW30 Digital Monitoring Relay, 24-240 V AC/DC, LCD Display, DIN Rail

The SIEMENS 3UG5642-2CW30 is a versatile digital monitoring relay designed for comprehensive electrical parameter supervision in single-phase and three-phase networks. It monitors current, voltage, power factor (cos φ), active and apparent power, frequency, and phase sequence, ensuring reliable protection and control of your electrical systems.

Advantages

This relay offers precise monitoring with adjustable delay times, automatic or manual reset, and a clear LCD display for real-time readings. Its wide supply voltage range (24-240 V AC/DC) and compatibility with external current transformers (up to 1000 A) make it suitable for diverse industrial applications. The compact DIN rail mounting simplifies installation.

Suitable for

• Industrial motor protection and load monitoring
• Power factor correction systems
• Generator and transformer protection
• Energy management and distribution panels

Key specifications

• Product Type: Digital Monitoring Relay
• Supply Voltage: 24-240 V AC/DC
• Voltage Measuring Range: 10-690 V AC
• Current Measuring Range: 0.05-10 A AC (internal), up to 1000 A AC with external CT
• Frequency Range: 15-70 Hz
• Power Factor Range: 0.1 inductive to 0.1 capacitive
• Output Contacts: 2 change-over (CO) contacts
• Display: LCD
• Mounting: DIN rail (35 mm)
• Protection: IP20 (terminals), IP40 (front)
• Operating Temperature: -25 to +60 °C

Recommendations

For optimal performance, use with external current transformers when monitoring currents above 10 A. Ensure proper configuration of delay times and thresholds according to your application requirements.