NT511 Temperature and Fan Controller

The NT511 Temperature and Fan control is a microprocessor based temperature controller that combines the temperature controller with the ability to power the fan cooling system directly.  It has 4 inputs suitable for RTD Pt100 sensors which are all protected against electromagnetic interference.  The basic outputs are 2 alarm relays (ALARM-TRIP) and 6 fan output relays which are all rated to 1.5A @ 230VAC.  An alarm relay for sensor faults and pc board self diagnostic faults immediately alerts you of problems with the controller.  Additional outputs are available like a digital RS485, or an analog 4-20mA output.


  • Temperature monitoring from 0°C to 200°C (32° – 392°F)
  • 230VAC input power 50/60Hz
  • Rated for use in ambient temperatures from -20° to +60°C (-4° to 140°F)
  • 4 inputs RTD Pt100 3 wires
  • All potential free output relays rated for up to 10A @ 250VAC
  • 2 alarm relays (Alarm & Trip)
  • 6 relays for fan control (rated 1.5A @ 230VAC)
  • 1 alarm relay for sensor fault

The NT511 Basic is offered with the relay outputs listed above

The NT511 RS485 offers an RS485 outut in addition to the relays listed above

The NT511 AD offers both an RS485 and a 4-20mA output in addition to the relays listed above