2979511-24dc

Product Description

This module features a 24V DC coil with a nominal input current of 9 mA, making it highly efficient for PLC and electronic control applications. The relay output is a single-pole changeover contact (1PDT) rated at 6A/250V AC, providing reliable switching for a wide range of loads. The module is housed in a compact 14mm wide terminal block housing with screw connection technology, ensuring secure and tool-friendly wiring. This plug-in relay module is part of the PLC-INTERFACE series, which combines a terminal block and a plug-in miniature relay in one unit. The 2979511 is designed for DIN rail mounting (35mm) and features a push-in actuator for manual operation, making commissioning and testing easier. The module includes a freewheeling diode for coil overvoltage protection, extending the relay's lifespan. With an ambient operating temperature range of -40°C to +60°C, it is suitable for demanding industrial environments. The PLC-BSC- 24DC/21 is a versatile solution for signal isolation, signal amplification, and potential matching in control cabinets. Its screw connection technology ensures vibration-resistant and maintenance-friendly wiring, while the integrated LED indicator provides clear visual status feedback. This module is a direct replacement for older PLC-INTERFACE versions and is fully compatible with Phoenix Contact's extensive range of accessories, including relay holders and marking tags. The Phoenix Contact 2979511 is a PLC-BSC- 24DC/21 interface relay module designed for seamless integration into industrial control systems.

Basic Product Information

• 24V DC coil with integrated freewheeling diode
• 1PDT relay output rated at 6A/250V AC
• LED status indicator for coil voltage
• Manual push-in actuator for testing
• DIN rail mounting (35mm) per EN 60715
• Compact 14mm housing with screw connection

Technical Specifications

Version & Model Difference

The 2979511 (PLC-BSC- 24DC/21) is the current version of the PLC-INTERFACE series. Earlier versions (e.g., PLC-RSC- 24DC/21) used a different housing design with a separate relay and base, while the PLC-BSC series integrates the relay into a single unit. The PLC-BSC series offers a narrower width (14mm vs. 16mm) and improved LED visibility. Compared to the PLC-OSC series, the PLC-BSC has a higher switching capacity (6A vs. 3A) and includes a manual actuator as standard. The 2979511 is also available in a variant with push-in connection (PLC-BSC- 24DC/21-21) for tool-less wiring.

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