PRODUCT DESCRIPTION
SIEMENS 3RF2420-1AB55 - Solid-State Contactor
The SIEMENS SIRIUS 3RF2420-1AB55 is a solid-state contactor engineered for the non-wearing, high-frequency switching of single-phase AC resistive loads. This device integrates zero-point switching technology to minimize current surges and electromagnetic interference, controlled via a 24V DC input signal. It is specifically designed for applications requiring accurate temperature control, such as industrial heating systems, ovens, and lighting circuits within automated manufacturing and process control environments.
Technical Specifications:
- SERIES/FAMILY: SIRIUS 3RF2
- COMPONENT TYPE: Solid-State Contactor for Resistive Loads (AC-51)
- ELECTRICAL SPECS:
- MAIN CIRCUIT VOLTAGE RANGE: 48-600 V AC
- RATED OPERATIONAL CURRENT (Ie): 20 A
- CONTROL VOLTAGE: 24 V DC
- SWITCHING PRINCIPLE: Zero-point switching
- PHASE: Single-phase
- FREQUENCY: 50/60 Hz
- MECHANICAL/PHYSICAL:
- FORM FACTOR: Compact industrial module
- CONNECTION TYPE: Screw terminals
- INTERFACE/CONTROL:
- CONTROL INPUT: DC voltage signal
- STATUS INDICATION: Integrated LED for operational status
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (terminal area), IP00 (main circuit connections)
- COOLING METHOD: Natural convection (up to rated current) forced air cooling may be required for higher ambient temperatures or stacked configurations.
- MOUNTING STYLE: DIN rail mounting
- OPERATING TEMPERATURE: -25 to +60 degrees Celsius
- COMPATIBILITY/APPLICATION:
- TARGET SYSTEMS: Industrial heating elements, ovens, furnaces, drying equipment, lighting systems, temperature regulation loops.
- MACHINE TYPES: Packaging machinery, plastics processing equipment, HVAC systems, general industrial automation and process control.