Siemens 3RB2056-1FW2 Electronic Overload Relay
The Siemens 3RB2056-1FW2 is a solid-state electronic overload relay designed to provide reliable motor protection within a current range of 50 to 200 amperes. As part of the SIRIUS series, this relay ensures precise and efficient safeguarding of motors against overload conditions.
Key Features
- Current Range: Adjustable from 50 to 200 A, accommodating various motor sizes and applications.
- Size and Class: Size S6, Class 10E, suitable for diverse industrial environments.
- Mounting Options: Versatile installation capabilities, including direct mounting onto contactors or standalone setups.
- Main Circuit Configuration: Equipped with a straight-through transformer for seamless integration into existing systems.
- Auxiliary Circuit Connections: Features screw terminals, ensuring secure and straightforward wiring.
- Reset Functions: Offers both manual and automatic reset options to enhance operational flexibility.
- Protection Features: Provides overload protection, phase failure protection, and unbalance protection to ensure comprehensive motor safety.
- Environmental Resilience: Operates effectively within ambient temperatures ranging from -25°C to +60°C, with a storage and transport range of -40°C to +80°C.
- Compliance and Safety: Meets international standards, including CE marking and ATEX certification for use in hazardous areas.
Technical Specifications
- Insulation Voltage: Rated at 1000 V with a degree of pollution 3.
- Surge Voltage Resistance: Rated at 8 kV, ensuring durability against voltage spikes.
- Protection Class: IP20 on the front, providing protection against solid objects.
- Shock Resistance: Withstands shocks up to 15g for 11 ms, suitable for demanding industrial conditions.
- Vibration Resistance: Endures vibrations from 1-6 Hz at 15 mm amplitude and 6-500 Hz at 20 m/s².
- Dimensions: Measures 119 mm in height, 120 mm in width, and 155 mm in depth, facilitating integration into control panels.
- Weight: Approximately 0.712 kg, balancing robustness with ease of handling.
The Siemens 3RB2056-1FW2 electronic overload relay is engineered to deliver precise motor protection, adaptability in installation, and resilience in various operating conditions, making it an ideal choice for safeguarding motors in industrial applications.
