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Duelco - NST-2004 Safety Relay

  • Safety Category 4 (PLe)
  • 3 NO safety outputs
  • 1 transistor output or 1 NC contact
  • Status/fault indication via LEDs
  • Short circuit monitoring

Product description

One of the most common relays in our safety relay range. Suitable for most applications including switches, light curtains and non contact switches. Transistor output for PLC monitoring.


Part numbers

Parts Price Supply voltage
24 V DC
230 V AC
8-36 V DC


NST2004F Cat.4 Emergency Stop Relay 24Vdc

Technical data

Approvals CE, cULus
IP class connection IP20
IP class housing IP40
Mechanical life expectancy > 10 million
PL e (EN ISO 13849-1)
Safety category 4
Safety outputs NO 3
Signal output NC 1
Supply voltage 24 V DC
Temperature operational max 60 °C
Temperature operational min -25 °C
Tolerance ±10%
Width 22,5 mm


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