SRB301MC-24V Schmersal Safety Relay Module 24VAC/DC 3 Safety Contacts Emergency Stop

Description:

• Genuine Schmersal safety relay module for monitoring emergency stop circuits, safety gates, pull-wire switches, magnetic safety switches, and safety light curtains
• Operates with a 24 VAC/DC control supply (20.4–28.8 VAC/DC)
• Provides 3 safety relay outputs (STOP Category 0) and 1 auxiliary signalling output
• Suitable for processing signals from contact-based safety devices and AOPDs (Active Optoelectronic Protective Devices) such as safety light curtains and light grids
• Features wire-break detection, cross-circuit detection, feedback loop monitoring, automatic/manual reset capability, and electronic fuse protection
• Supports applications up to Performance Level e (PL e), Category 4, and SIL 3 for high-integrity machine safety systems
• Integrated LED status indicators simplify diagnostics and commissioning
• Mounts on a 35 mm DIN rail for easy installation in industrial control panels
• Ideal for industrial automation, machine safety, packaging equipment, robotics, conveyors, and OEM machinery.

Specifications:

• Manufacturer Name: Schmersal
• Part Number (MPN): SRB301MC-24V
• Article Number: 101190684
• Product Type: Safety Relay Module
• Supply Voltage:
  • 20.4–28.8 VAC/DC
  • Nominal: 24 VAC/DC
• Safety Outputs: 3 NO Safety Contacts
• Auxiliary Outputs: 1 Signalling Output
• Input Compatibility:
  • Emergency Stop Pushbuttons
  • Guard Door Switches
  • Pull-Wire Emergency Stop Switches
  • Magnetic Safety Sensors
  • Safety Light Curtains
  • Safety Light Grids
• Safety Category: STOP Category 0
• Performance Level: PL e
• Safety Category (EN ISO 13849-1): Category 4
• Safety Integrity Level: SIL 3
• Diagnostic Coverage (DC): ≥99%
• PFH: 2.0 × 10⁻⁸/h
• Mechanical Life: 10,000,000 Operations
• Mounting: 35 mm DIN Rail
• Terminal Capacity: 0.25–2.5 mm²
• Power Consumption:
  • 2 W (DC)
  • 4.9 VA (AC)
• Safety Output Rating:
  • 250 VAC, 8 A Max
  • 230 VAC AC-15: 6 A
  • 24 VDC DC-13: 6 A
• Auxiliary Output Rating:
  • 24 VDC, 2 A
• Operating Indicators: 4 LEDs
• Certifications:
  • TÜV
  • cULus
  • CCC
• Standards:
  • EN ISO 13849-1
  • EN IEC 62061
  • EN IEC 61508
  • EN IEC 60947-5-1
  • EN IEC 60204-1

Dimensions:

• Height: 100 mm (3.94 in)
• Width: 45 mm (1.77 in)
• Depth: 121 mm (4.76 in).

Weight:

• Approximate Weight: 0.269 kg (0.59 lb).