Duelco NST-2004F 230VAC Emergency Stop Relay, designed for industrial safety applications:

Technical Specifications

• Model: NST-2004F
• Supply Voltage: 230V AC
• Safety Outputs: 3 NO (normally open) contacts
• Auxiliary Output: 1 NC contact or 1 transistor output (for PLC monitoring)
• Short Circuit Monitoring: Yes
• Reset Modes: Manual, automatic, or monitored reset (configurable via DIP switch)
• Operation Modes:
  • 2-channel with short circuit protection
  • 1-channel operation with supply monitoring
• Safety Category: Cat. 4 (EN ISO 13849-1)
• Stop Category: 0
• Housing Width: 22.5 mm slimline DIN rail mount
• LED Indicators: Supply status and output status for relays K1 and K2