Pilz PNOZ X2.1 Safety Relay

This is a safety relay from the German manufacturer Pilz, a world leader in industrial safety. Devices in this series (yellow) are designed to protect personnel and equipment.

Technical Description: Pilz PNOZ X2.1 Safety Relay

The Pilz PNOZ X2.1 is a compact safety relay designed to monitor emergency stop circuits (E-STOP), safety fences, and light curtains. It ensures immediate interruption of power supply to hazardous equipment components when an alarm or fault occurs in the control circuit.

Key Features:

• Model: PNOZ X2.1.

• Part Number (ID): 774306.

• Supply Voltage: Universal - 24 V AC or DC (24 V AC/DC).

• Safety Contacts: 2 normally open contacts (2 n/o).

• Switching capacity:

• AC1 (resistive): 240 V / 6.0 A.

• AC15 (inductive): 230 V / 5.0 A.

• DC13 (inductive): 24 V / 4.0 A.

• Mounting: DIN rail mount (module width 22.5 mm).

Features and functionality:

• Dual-channel monitoring: The relay can monitor safety circuits on two channels, ensuring tripping even in the event of a single fault (for example, if one contact is stuck).

• LED indication:

• POWER: Power presence.

• CH.1 / CH.2: Safety channel status (allows quick diagnosis of which branch of the circuit has broken).

• Start types: Supports automatic and controlled manual start.

• High level of protection: Meets the requirements of Category 4 according to EN 954-1 and safety integrity levels (SIL/PL) depending on the connection diagram.

Terminal assignment:

• A1 / A2: Module power supply.

• S11, S12, S21, S22: Safety input circuits (connection of emergency stop buttons or sensors).

• S33, S34: Feedback and start-up control circuit.

• 13-14 / 23-24: Safety output power contacts.

Application:

Used on machine tools, production lines, presses, and conveyors to meet occupational safety requirements. It is a critical component for the legal operation of industrial equipment.

This original device is Made in Germany. The Pilz brand is valued in the industrial safety market for its exceptional fail-safety.

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