PRODUCT DESCRIPTION
SIEMENS 3RB2985-2AA1 - Current Transformer
This component is a SIEMENS SIRIUS 3RB2985 series current transformer, designed for precise current measurement in industrial motor control applications. It functions as an essential accessory for SIEMENS SIRIUS 3RB2 electronic overload relays, enabling accurate thermal protection and monitoring of three-phase AC motors. This device is critical for maintaining operational integrity and preventing damage in systems such as pumps, fans, compressors, and conveyor belts.
Technical Specifications:
- SERIES/FAMILY: SIRIUS 3RB2985
- COMPONENT TYPE: Current Transformer
- ELECTRICAL SPECS:
- NOMINAL CURRENT RANGE: 200-800A (for main circuit)
- MEASUREMENT PRINCIPLE: Through-hole current sensing
- COMPATIBLE RELAYS: SIEMENS SIRIUS 3RB20, 3RB21, 3RB22, 3RB23, 3RB24, 3RB29 electronic overload relays
- MECHANICAL/PHYSICAL:
- FORM FACTOR: Through-hole design for busbar or cable integration
- SIZE: S3-S12 (corresponds to the frame size of compatible contactors/relays)
- MOUNTING: Direct integration with compatible 3RB2 overload relays or separate mounting
- INTERFACE/CONTROL:
- OUTPUT SIGNAL: Provides current measurement data to the connected 3RB2 electronic overload relay
- CONNECTION TYPE: Integrated terminals for relay connection
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (when installed in an appropriate enclosure)
- OPERATING TEMPERATURE: -25 to +60 degrees Celsius
- MOUNTING STYLE: Integrated or screw mounting within control cabinet
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Industrial motor control centers, switchgear, and control panels
- SPECIFIC MACHINE TYPES: Applications requiring thermal overload protection for three-phase AC motors, including pumps, fans, compressors, and material handling systems.