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Siemens 3RB Series Overload Relay 1 NO/1 NC 630A F.L.C 4A Contact Rating 250 kW 3RB2066-1MC2
Specifications
| Country of Origin | Germany |
|---|---|
| Brand | Siemens |
| Length | 145mm |
| Model | 3RB2066-1MC2 |
| Depth | 156mm |
| IP Rating | IP00 |
| Width | 85mm |
| Mount Type | Direct |
| Series | 3RB |
| Power Rating | 250kW |
| Maximum Operating Temperature | 60°C |
| Minimum Operating Temperature | -25°C |
| Terminal type | Screw |
| Supply Voltage | 400V |
| Standards/Approvals | REACH, EAC, IEC, CE, RoHS, CCC, WEEE (2012/19/EU), UKCA, UL |
| Contact Voltage | 220, 230V ac |
| Reset Method | Automatic & Manual |
| Normal State Configuration | 1 NO/1 NC |
| Relay Contact Current | 4A |
| Number of Auxiliary Contacts | 2 |
| Pole and Throw Configuration | 3 |
| FLC Motor Rating | 630A |
| Adjustable Current Range | 160 → 630 A |
Key Features
- Robust relay from Siemens SIRIUS Classic series for industrial motor protection.
- Reliable overload detection with adjustable current range of 160 to 630 A.
- Screw terminals enable secure and efficient cable connection.
- Operating temperature range from -25°C to +60°C ensures durability in demanding environments.
- Compact design with dimensions 145 mm (length) × 85 mm (width) × 156 mm (depth).
- Thermoplastic housing provides impact resistance and lightweight handling at 1.8 kg.
- Complies with international standards including IEC, CE, RoHS, and UL.
- Suitable for industrial, manufacturing, and automation applications.
Product Description
Siemens 3RB2066-1MC2 Overload Relay from the SIRIUS Classic range is designed to protect industrial motors from damage due to overload conditions. It features a 1 NO/1 NC relay contact configuration and supports a full load current (F.L.C) rating of 630 A, making it ideal for motor power ratings up to 250 kW. This relay operates within a broad temperature range from -25°C to 60°C, ensuring reliable performance in harsh industrial environments.
This overload relay uses screw terminals for robust and easy wiring connections, enhancing installation effectiveness. It offers dual reset functionality with both automatic and manual reset options, enabling swift recovery after an overload trip event. The thermoplastic housing delivers durability and impact resistance while maintaining a lightweight form factor with a weight of approximately 1.8 kg.
The relay includes a test function that facilitates easy condition checks to guarantee operational integrity. It is part of Siemens' 3RB series, widely recognized for quality and compliance with international standards such as IEC, CE, RoHS, CCC, UKCA, and UL, making it suitable for various industrial automation setups including manufacturing, motor control centers, and process automation.
Robust overload relay for motor protection with 1 NO/1 NC contact configuration. Adjustable current range from 160 to 630 A for flexible motor protection settings. Dual reset methods: automatic and manual for operational convenience.
Screw terminal connections ensure secure wiring and reliable performance. Operates efficiently in temperature ranges from -25°C to 60°C. Compact and lightweight thermoplastic housing for ease of installation. Compliance with IEC, CE, RoHS, CCC, WEEE, UKCA, and UL standards.
Test function available for routine maintenance verification. Designed for heavy industrial use for motors up to 250 kW.
For professionals involved in industrial automation, motor control, and manufacturing, this Siemens overload relay provides dependable overload protection enhancing motor longevity and reducing downtime. Explore more products in the Overload Relay category at EnvMart for comprehensive industrial solutions.
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Frequently Asked Questions
The Siemens 3RB2066-1MC2 has a full load current (F.L.C) rating of 630 A, making it suitable for motor power ratings up to 250 kW.
This model features an adjustable current range from 160 A to 630 A, allowing for flexible motor protection settings.
The dimensions of this relay are 145 mm in length, 85 mm in width, and 156 mm in depth.
It operates efficiently within a temperature range of -25°C to 60°C, ensuring reliable performance in harsh environments.
The relay utilizes screw terminals for secure and efficient wiring connections, enhancing installation effectiveness.
This model offers dual reset methods: both automatic and manual, allowing for operational convenience after an overload trip.
The overload relay features a normal state configuration of 1 NO (Normally Open) and 1 NC (Normally Closed) contact.
It complies with several international standards including IEC, CE, RoHS, CCC, WEEE, UKCA, and UL.
This overload relay weighs approximately 1.8 kg, making it lightweight for ease of handling and installation.
The supply voltage for the Siemens 3RB2066-1MC2 is 400V.
This overload relay is suitable for various industrial applications including manufacturing, motor control centers, and process automation.
This model is manufactured in Germany.
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