PILZ 774040 PZA 30/230VAC 1n/o 2n/c Safety Relay 774040

• PZA 30/230 VAC 1n/0 2n/C
• ID NO: 774040 107254
• ANSPR VERZ: 3S-30S
• 230VAC, 4.5VA, 50-60HZ
• AC15: 230V, 4.0A
• AC1: 240V, 6.0A
• DC13: 24V, 3.0A
• DC1: 24V, 6.0A
• 6AF/4AT
• MADE IN GERMANY
• WWW.PILZ.COM

The Pilz 774040 is a PZA A30.2/2C safety relay module. It is a compact, modular safety relay designed for monitoring safety functions like E-Stop (Emergency Stop) circuits, safety gates, and light curtains. Operating on a 30V AC supply, it features a robust configuration of one normally open (NO) and two normally closed (NC) safety contacts, plus auxiliary signaling contacts. It is a core component for building safety control systems in accordance with international machinery safety standards.

Key Features & Benefits

• High Safety Integrity: Designed to meet categories 2 and 3 according to EN 954-1 and Performance Level “d” (PLd) according to ISO 13849-1, ensuring reliable protection for personnel and machinery.

• Compact and Modular: Its slim design allows for efficient use of space in control cabinets and enables easy integration into larger Pilz safety systems like the PNOZmulti configurable safety system.

• Clear Status Indication: Equipped with LED indicators for power (PWR) and channel status (K1, K2), providing immediate visual feedback on the relay’s operational state for easy troubleshooting.

• Versatile Contact Configuration:

  • 1 NO (Safety Contact): Used for safely restarting a machine or controlling a main power path.

  • 2 NC (Safety Contacts): Used for directly breaking a safety circuit to stop a machine in a safe state.

  • Auxiliary Contacts: Additional contacts for signaling purposes (e.g., to a PLC) or for controlling non-safety functions.

• Reliable Safety Function Monitoring: Monitors the correct wiring and operation of safety devices like E-Stop buttons with dual channels, detecting faults such as contact welding or cross-circuit faults.

Technical Specifications

Typical Applications

This safety relay is ideal for monitoring and controlling safety functions in a wide range of industrial automation applications, including:

• Emergency Stop (E-Stop) Circuits

• Safety Interlocks / Guard Doors

• Two-Hand Control Stations

• Monitoring of Light Curtains and Safety Mats

• Presses, Packaging Machines, and Robotic Cells