GESTRA NRS 2-51 Level Switch Controller
GESTRA NRS 2-51 Level Switch Controller
GESTRA NRS 2-51 Level Switch Controller
Product Description

GESTRA NRS 2-51 Level Switch Controller

The GESTRA NRS 2-51 is a versatile and reliable level switch controller designed for industrial applications requiring precise liquid level monitoring and control. It operates with a 4-20mA input signal from a level transmitter and features a clear digital percentage display for at-a-glance readings. This TÜV-certified controller provides MIN and MAX level switching functions with a built-in 3-second delay to prevent false tripping. Its robust design and relay outputs make it ideal for activating alarms, pumps, or valves in systems such as steam boilers, feedwater tanks, and other industrial vessels, ensuring safe and efficient operation.

Technical Specifications:

  • Model: NRS 2-51
  • Power Supply: 24V DC +/- 20%, 4VA
  • Signal Interface: 4-20mA input and output (max. load 500 Ω)
  • Relay Output Rating: 250V AC, T 2.5 A
  • Switching Functions: MIN and MAX level alarms with 3-second time delay
  • Protection Class: IP40 (Front) / IP20 (Terminals)
  • Maximum Ambient Temperature: 55°C (131°F)
  • Certifications: TÜV.WR.17-425
  • Material Number: 392746

GESTRA NRS 2-51 Level Switch Controller Description

GESTRA NRS 2-51 Level Switch Controller

Shop the GESTRA NRS 2-51, a TÜV-certified industrial level switch controller with a digital display. Features 24V DC power, 4-20mA signal interface, and MIN/MAX relay outputs for reliable level control.