Schneider Electric | XPSAC5121 Emergency Stop Module (24 V AC/DC)

Schneider Electric XPSAC5121 emergency stop (E-Stop) safety relay, part of the trusted Preventa XPSAC series, is engineered for reliability, ensuring compliance with international safety standards while protecting workers and machinery in demanding environments.

Key Features & Benefits

• Dual Voltage Flexibility (24 V AC/DC)
  Operates seamlessly on 24 V AC or DC power, making it suitable for a wide range of setups.

• High Safety Ratings
  Certified to Performance Level e (Cat. 4, EN/ISO 13849-1) and SIL CL 3 (EN/IEC 62061) for maximum hazard prevention.

• Emergency Stop & Switch Monitoring
  Continuously monitors E-Stop pushbuttons and limit switches, delivering fast response times for critical safety events.

• Reliable Outputs for Machine Shutdown
  Includes 3x safety relay outputs (3 NO, volt-free) and 1x solid-state output for direct feedback to PLCs.

• Redundant Microprocessor-Based Design
  Built for dependable performance in safety-critical applications.

• Easy Diagnostics
  Integrated LED indicators provide quick status updates, reducing downtime.

• Compact DIN-Rail Form Factor
  Slim 22.5 mm housing fits into space-constrained panels with simple 35 mm DIN-rail mounting.

• Low Power Consumption
  Efficient design uses only 40 mA (DC) or 90 mA (AC), lowering operational costs.

• Long Service Life & Reliability

  • MTTFd: ~210.4 years

  • Diagnostic Coverage: >99%

  • PFHd: 3.56 × 10⁻⁹ per hour

Technical Specifications

Ideal Applications

• Automated assembly and packaging lines

• Industrial motor control and processing equipment

• Machine safety circuits (two-hand control, light curtains, etc.)

• Any system requiring emergency stop functionality with PLC integration

Upgrade & Replacement Information

As of February 24, 2025, Schneider Electric recommends the XPSBAC14AP (Harmony XPS series) as the replacement model for the XPSAC5121.