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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RN1022-1DW00 |
| Alternative Part Number | 3RN10221DW00 |
| Manufacturer | Siemens |
| Type of Voltage | AC/DC |
| Supply Voltage Frequency | 50/60 Hz |
| Control Supply Voltage | 24...240 V (AC at 50/60 Hz, DC) |
| Number of Measurement Circuits | 2 |
| Number of NC Contacts | 0 (for auxiliary contacts) |
| Number of NO Contacts | 1 (for auxiliary contacts) |
| Number of Changeover Contacts | 1 (for auxiliary contacts) |
| Measurable Temperature Range | 60°C to 180°C |
| Product Functions | Lockable reset, automatic reset, fault memory, external reset |
| Material Reference | According to DIN EN 61346-2: K |
| Ambient Operating Temperature | -25°C to +60°C |
| Mechanical Construction | Screw-type terminals for auxiliary and control circuit, no jumper socket, LED indicator |
| Protection Class | IP20 |
| Width | 22.5 mm |
| Height | 102 mm |
| Depth | 91 mm |
| Certificates/Approvals | General Product Approval, EMC, for use in hazardous locations, various test certificates |
The Siemens 3RN1022-1DW00 is a sophisticated thermistor motor protection relay designed to safeguard motors from potential overheating. This component is essential for monitoring the temperature of motor windings, providing real-time protection by evaluating the feedback from connected thermistor sensors.
Engineered to accommodate two sensor circuits, the relay offers both alarm notifications and switch-off capabilities, ensuring immediate response to abnormal temperature conditions. The relay operates with a control supply voltage range of 24 to 240 volts, compatible with both alternating current (AC) and direct current (DC) systems, and is suitable for a frequency of 50 or 60 hertz, catering to a broad spectrum of industrial applications.
The 3RN1022-1DW00 features a user-friendly design with screw-type terminals for secure and reliable electrical connections. It also includes an LED indicator for at-a-glance monitoring of the relay's status. With a compact width of 22.5 mm, it is designed to fit neatly into control panels without occupying excessive space.
This relay is equipped with a reclosing interlock and self-reset function, enhancing its operational reliability. Additionally, it has the capability to store fault conditions and can be externally reset if needed. The temperature range that can be measured by the connected sensors spans from 60 to 180 degrees Celsius, providing a wide operational scope to cater to various motor types and sizes.
The 3RN1022-1DW00 is housed in a robust enclosure with an IP20 protection rating, ensuring durability in industrial environments with an ambient operating temperature range of -25 to +60 degrees Celsius. This makes it a versatile choice for a multitude of industrial settings where motor protection is paramount.
With its combination of advanced features and reliable performance, the Siemens 3RN1022-1DW00 thermistor motor protection relay is an indispensable component for maintaining the integrity and longevity of motor systems.
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Frequently Asked Questions
What is the function of this thermistor motor protection relay?
The thermistor motor protection relay is designed to protect motors from overheating by monitoring the temperature via connected thermistors. It provides warning signals and can disconnect the power to prevent damage when abnormal temperatures are detected.
Can this device be used with both AC and DC power supplies?
Yes, the thermistor motor protection relay is compatible with both AC and DC power supplies, making it versatile for various applications.
What is the range of operating temperatures for this relay?
The operating temperature range for the relay is from -25°C to +60°C, ensuring reliable performance in a wide range of environmental conditions.
How many sensor circuits can be connected to this relay?
This relay can accommodate two sensor circuits, allowing for the monitoring of multiple points or motors simultaneously.
What type of electrical connection does this relay support?
The relay supports screw-type terminals for its electrical connections, providing a secure and reliable method for wiring.
Does this relay have a manual reset function?
Yes, the relay includes a manual reset function, as well as an automatic reset feature for ease of use and to help reduce downtime.
What is the IP rating of this relay?
The relay has an IP20 rating, indicating that it is protected against solid objects larger than 12.5mm but not against water ingress.
Are there any certifications or approvals for this relay?
The relay has general product approvals and complies with EMC standards for use in hazardous locations, among other certifications.
What are the dimensions of this relay?
The dimensions of the relay are 22.5mm in width, 102mm in height, and 91mm in depth, making it compact for easy integration into control panels.
Does the relay have any visual indicators for operation status?
Yes, the relay is equipped with LEDs that provide visual indication of its operational status and any fault conditions.
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