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for example for switches, light curtains and magnetic switches
The transistor output serves for the monitoring of the relay's status
for example with a PLC
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Reviews
- R
Richard Conti
Jan 15, 2026
DUELCO Relay NST-2004Life was fantastic.HelpfulUnhelpful - S
Stephen Bonsall
Nov 23, 2025
DUELCO Relay NST-2004Quick and simple solution.HelpfulUnhelpful - T
Trent Binger
Jun 27, 2025
DUELCO Relay NST-2004Got my order right on time and it's exactly what I needed.HelpfulUnhelpful - M
Mikel Grinnell
Jul 26, 2024
DUELCO Relay NST-2004El pedido fue correcto y lo recibí rápidamente.HelpfulUnhelpful - A
Anonymous user
Nov 25, 2022
DUELCO Relay NST-2004All was ok! No problems whatsoever.HelpfulUnhelpful
DUELCO Relay NST-2004
✔ In Stock (Can ship in 5-7 days)

Online Support 24/7
12 Months Warranty for New Products
30 Days Money Back Guarantee
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