811969 - IP67 Quick-Connect - Industrial Auto Stainless High-Speed - Circular Connector

The Phoenix Contact 811969 is a compact and robust surge protection module designed to safeguard industrial automation systems from voltage spikes, transient overvoltages, and electromagnetic interference (EMI). Part of Phoenix Contact's TRABTECH series, this device ensures reliable protection for sensitive electronic components, such as PLCs, sensors, and communication interfaces, in harsh environments. Its DIN rail-mountable design (EN 60715) allows seamless integration into control cabinets, motor control centers, and power distribution panels. The module features a durable polycarbonate housing with IP20 protection, providing resistance to dust and mechanical impacts.

Engineered for universal compatibility, the 811969 supports a wide range of industrial applications, including 24 V DC control circuits and low-voltage signal lines. Compliance with IEC 61643-11, UL 1449, and RoHS/REACH standards ensures global safety and environmental compliance. Visual status indicators (green/red LEDs) offer real-time monitoring of protection status, simplifying maintenance and fault detection.

The 811969 is defined by precision-engineered surge protection specifications:

• Rated Voltage: 24 V DC / 48 V DC (for control circuits).
• Maximum Discharge Current (Imax): 10 kA (8/20 µs pulse), ensuring robust protection against transient surges.
• Voltage Protection Level (Up): <60 V (for 24 V DC systems), minimizing risk to sensitive electronics.
• Response Time: <1 ns, providing near-instantaneous reaction to transient events.
• Operating Temperature: -40°C to +80°C, suitable for extreme industrial environments.
• Connection Type: Screw terminals for secure wiring (0.2-2.5 mm² conductor cross-section).
• Certifications: UL 1449 (Type 4), CE, and IEC 61643-11 (surge protective devices).

These parameters make the 811969 ideal for protecting low-voltage control systems and communication networks.

The 811969 is critical in safeguarding automation infrastructure across industries:

• PLC and Controller Protection: Shields I/O modules and control logic from voltage surges in manufacturing and robotics.
• Sensor Networks: Protects analog/digital sensors in process automation (e.g., chemical plants, water treatment).
• Communication Lines: Secures RS-485, PROFIBUS, and CANopen fieldbus systems in industrial networks.
• Renewable Energy Systems: Protects solar inverters and battery management units from lightning-induced surges.
• Transportation Infrastructure: Ensures uninterrupted operation in railway signaling and traffic control systems.

Its compact design also suits mobile machinery, packaging lines, and semiconductor manufacturing, where space constraints and electrical noise are critical challenges.

The 811969 excels through innovative surge protection technology and user-centric design:

• High Surge Capacity: Handles up to 10 kA discharge current, exceeding requirements for most control systems.
• Visual Status Monitoring: Dual-color LEDs provide instant feedback on module health and failure alerts.
• Tool-Free Replacement: Modular design allows quick swap without disconnecting adjacent components.
• Universal Compatibility: Works with 24 V DC and 48 V DC systems, reducing inventory complexity.
• Durability: Flame-retardant housing (UL94 V-0) and corrosion-resistant terminals ensure long-term reliability.

These features minimize downtime, protect costly equipment, and reduce maintenance costs in mission-critical installations.

The 811969 delivers advanced surge protection capabilities:

• Multi-Stage Protection: Combines varistors and suppressor diodes for coordinated suppression of fast and slow transients.
• Thermal Disconnect: Automatically disconnects from the circuit upon overload to prevent fire hazards.
• Compact Design: Space-saving footprint enables high-density installations in control panels.
• Easy Diagnostics: Replaceable modules with snap-on DIN rail mounting simplify troubleshooting.
• Galvanic Isolation: Reduces ground loop interference, ensuring signal integrity in sensitive circuits.

Combined with Phoenix Contact's rigorous testing standards, the 811969 ensures uninterrupted operation and compliance with global safety regulations.