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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RB2066-1GF2 |
| Alternative Part Number | 3RB20661GF2 |
| Manufacturer | Siemens |
| Product Type | Solid-state overload relay |
| Size of Overload Relay | S10, S12 |
| Number of Poles | 3 for main current circuit |
| Product Function | Removable terminal for auxiliary and control circuit |
| Impulse Voltage Resistance | Rated value 8 kV |
| Protection Class IP | IP20 |
| Installation Altitude | Maximum 2,000 m above sea level |
| Ambient Temperature Operating Range | -25 … +60 °C |
| Ambient Temperature Storage Range | -40 … +80 °C |
| Relative Humidity | Maximum 100% during operating phase |
| Electrostatic Discharge | 6 kV contact discharge / 8 kV air discharge |
| Operating Current | Of the fuse link rated value 400 A |
| Adjustable Pickup Value Current | 55 … 250 A for current-dependent overload release |
| Operating Voltage | Rated value 1,000 V |
| Operating Frequency | Rated value 50 … 60 Hz |
| Operating Power | For three-phase motors at 400 V at 50 Hz: 30 … 132 kW |
| Auxiliary Circuit Design | Integrated auxiliary switch |
| Number of NC Contacts for Auxiliary | 1 |
| Number of NO Contacts for Auxiliary | 1 |
| Type of Protection | PTB 06 ATEX 3001 Ex II (2) GD |
| Product Approval | EMC, For use in hazardous locations |
The Siemens 3RB2066-1GF2 is a state-of-the-art solid-state overload relay designed for motor protection. This component is part of the SIRIUS product family and is suitable for Size S10/S12 contactor mounting or stand-alone installation. It offers a broad protection range for motors, with an adjustable pick-up value current of 55 to 250 A, ensuring versatility across various applications.
Crafted with precision, the 3RB2066-1GF2 features a robust design that can withstand the rigours of industrial environments. It has an insulation voltage rated at 1,000 V and a surge voltage resistance of 8 kV, providing reliable performance and protection against transient voltage spikes. The relay is also equipped with integrated auxiliary contacts, facilitating seamless integration into control circuits.
The device is engineered to offer protection class IP20, ensuring finger-safe operation when the cover is in place. It is also compliant with ATEX directives for use in potentially explosive atmospheres, making it a versatile choice for a wide range of industries.
Installation and maintenance are straightforward, thanks to its direct mounting capability and any-position mounting flexibility. The 3RB2066-1GF2 is designed with busbar connections for the main circuit and spring-loaded terminals for auxiliary and control circuits, simplifying the wiring process.
With its electronic overload release and Class 10 trip class, the Siemens 3RB2066-1GF2 provides precise and reliable protection for motors, preventing damage due to overloads and ensuring the longevity of your equipment. Whether used in manufacturing, processing, or other demanding industrial settings, this overload relay is an essential component for safeguarding your motor-driven systems.
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Frequently Asked Questions
What is the overload relay size for this solid-state overload relay?
The solid-state overload relay comes in sizes S10 and S12, suitable for different installation and application requirements.
Can this overload relay be mounted onto a contactor?
Yes, the overload relay is designed for both contactor mounting and stand-alone installation, providing flexibility in how it's integrated into your system.
What is the operating current range for this overload relay?
The operating current range for the overload relay is 55 to 250 A, allowing it to be used for motor protection in a variety of applications.
What type of terminals does this overload relay have for the auxiliary circuit?
The auxiliary circuit of the overload relay features spring-loaded terminals, which offer a secure connection and ease of wiring.
What is the protection class of the front side of this overload relay?
The front side of the overload relay has a protection class of IP20, ensuring a degree of protection against solid objects.
Is this overload relay suitable for use in hazardous locations?
Yes, the overload relay is certified for use in hazardous locations, making it suitable for a wide range of industrial environments.
What is the impulse voltage resistance of this overload relay?
The impulse voltage resistance of the overload relay is rated at 8 kV, providing robust protection against voltage spikes.
What are the ambient temperature limits for operating this overload relay?
The overload relay can operate within an ambient temperature range of -25 to +60 °C, ensuring reliable performance in various working conditions.
How does the overload relay provide motor protection?
The overload relay protects motors by monitoring the current and tripping to prevent damage when an overload is detected, classified under Class 10 trip characteristics.
What is the maximum installation altitude for this overload relay?
The maximum installation altitude for the overload relay is 2,000 meters above sea level, allowing it to be used in high-altitude locations.
