PILZ 751102 Emergency Stop Safety Relay

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PILZ 751102 Emergency Stop Safety Relay (PNOZ s2 Series)

Product Overview

The PILZ 751102 is a compact modular safety relay from the PNOZ s2 series, designed for emergency stop (E-STOP) circuits, safety door monitoring, and light curtain control in industrial automation. It ensures fail-safe operation with dual-channel redundancy and complies with EN 60947-5-1, EN 60204-1, and VDE 0113-1 standards, achieving Safety Category 2 (EN 954-1) 1.

Key Features & Technical Specifications

1. Safety & Control Functions

• Input Configuration:

  • Single-channel wiring (supports E-STOP buttons, safety door switches) .

  • Manual/Auto reset modes for flexible operation .

• Output Configuration:

  • 3 Normally Open (NO) safety contacts (6A @ 24V DC) .

  • 1 Normally Closed (NC) auxiliary contact for feedback signals .

  • 1 Semiconductor output for diagnostics .

• Self-Monitoring:

  • Automatically checks relay contact integrity during each power cycle .

2. Electrical & Mechanical Specs

• Power Supply: 24V DC (2W power consumption) .

• Contact Material: AgSnO₂ + Au-plated for high durability .

• Operating Temperature: -10°C to +55°C .

• Dimensions: 17.5mm (W) × 98mm (H) × 120mm (D) .

• Terminals: Spring-clamp connectors (tool-free wiring) .

3. Safety Certifications

• CE, cULus, TÜV, CCC .

• Compliance: EN ISO 13849-1 (PL c), IEC 61508 (SIL 2) .

Applications

1. Emergency Stop Systems: Immediate shutdown in CNC machines, presses, and robotic cells .

2. Safety Door Monitoring: Prevents machine startup if gates are open .

3. Light Curtain Integration: Stops equipment when personnel enter hazardous zones .

Installation & Usage Notes

1. Wiring: Use shielded cables to prevent EMI interference .

2. Testing:

   • Verify contact resistance (<0.1Ω for closed contacts) .

   • Regularly test reset functionality .

3. Maintenance: Inspect LED indicators for faults (power, output status, errors) .

The structure and details of the product：

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