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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3UG4641-1CS20 |
| Manufacturer | Siemens |
| Product Type | Monitoring Relay |
| Supply Voltage | 90 to 690 V ac |
| Current Rating | 10 A |
| Contact Configuration | 2 Changeover (CO) contacts |
| Dimensions | 22.5 x 91 x 102 mm |
| Display Type | LCD |
| Overcurrent Detection | Yes, for 1 phase |
| Undercurrent Detection | Yes, for 1 phase |
| Reset Type | External reset possible |
| Operating Temperature Range | -25 to +60 °C during operation |
| Storage Temperature Range | -40 to +85 °C |
| Installation Altitude | Up to 2000 m above sea level |
| Electromagnetic Compatibility | Compliant with IEC 60947-1, IEC 61000-6-2, IEC 61000-6-4 |
| Vibration Resistance | According to IEC 60068-2-6 |
| Shock Resistance | According to IEC 60068-2-27 |
| Insulation Voltage | Rated at 690 V for overvoltage category III with degree of pollution 3 |
| Degree of Pollution | 3 |
| Protection Class | IP20 |
| Mechanical Service Life | Typical 10,000,000 switching cycles |
| Electrical Endurance | Typical 100,000 switching cycles at AC-15 at 230 V |
| Operating Frequency | Maximum 5,000 operations per hour with 3RT2 contactor |
| Connection Type | Screw-type terminals |
| Conductor Cross-Section | Solid: 1x (0.5 ... 4 mm²), 2x (0.5 ... 2.5 mm²); Finely stranded with core end processing |
| Mounting Type | Snap-on mounting |
The Siemens 3UG4641-1CS20 is a sophisticated monitoring relay designed to ensure the reliability and efficiency of electrical systems. Engineered for versatility, this device can handle a wide voltage range from 90 to 690 V ac, making it suitable for a diverse array of applications. With a 10 A current rating and dual changeover (2CO) contacts, it offers flexibility in control circuit design.
Compact in form, the relay measures just 22.5 x 91 x 102 mm, allowing for convenient installation in space-constrained environments. Its snap-on mounting feature simplifies the integration process, enabling quick and secure attachment to DIN rails without the need for additional tools.
This monitoring relay is equipped with a clear LCD display, providing real-time diagnostics and system status updates. It is capable of detecting both overcurrent and undercurrent conditions in a single phase, enhancing the protective measures of your electrical system. The relay also includes an external reset function and supports both open-circuit and closed-circuit current principles.
The Siemens 3UG4641-1CS20 is designed with galvanic isolation between the input, output, and other circuits, ensuring enhanced safety and system integrity. Its screw-type terminals accommodate a range of conductor cross-sections, offering a reliable and secure connection for solid or finely stranded wires.
With its robust construction and comprehensive functionality, the Siemens 3UG4641-1CS20 monitoring relay is an essential component for industrial control systems, providing critical monitoring and protection to maintain operational stability and prevent downtime.
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Frequently Asked Questions
What is the voltage range for the monitoring relay?
The monitoring relay operates within a voltage range of 90 to 690 V ac.
What type of contacts does this relay have?
This relay is equipped with 2 changeover (CO) contacts.
Can this relay be mounted in any position?
Yes, the relay is designed for mounting in any position.
What is the typical mechanical service life of the relay?
The typical mechanical service life of the relay is around 10 million switching cycles.
What is the maximum operating frequency with a 3RT2 contactor?
The maximum operating frequency with a 3RT2 contactor is 5,000 operations per hour.
What are the dimensions of the relay?
The dimensions of the relay are 22.5 mm in width, 91 mm in depth, and 102 mm in height.
What type of electrical connection does the relay use?
The relay uses screw-type terminals for electrical connections.
Is there any required spacing for live parts during installation?
No, there is no required spacing for live parts specified for this relay.
What is the maximum installation altitude for the relay?
The maximum installation altitude for the relay is 2,000 meters above sea level.
Does the relay have galvanic isolation?
Yes, the relay provides galvanic isolation between the power supply and other circuits.
