GESTRA NRR 2-60

Level Controller

GESTRA NRR 2-60 Level Controller
GESTRA NRR 2-60 Level Controller
GESTRA NRR 2-60 Level Controller

GESTRA NRR 2-60 Level Controller

The NRR 2-60 level controller can be used together with the NRG 26-60 or NRG 26-61 level electrodes as a level control system and limit switch in steam boilers and hot water instal- lations, and in condensate and feedwater tanks.

The NRR 2-60 level controller can also be used for the above applications with a URW 60 universal converter* and in combination with an external level electrode (with a current output of 4-20 mA).

* The URW 60 universal converter converts the analogue 4-20 mA signals from the level electrodes into CAN bus signals.

The equipment is configured and operated and information is viewed via the URB 60 visual display and operating unit.

The NRR 2-60 level controller is a 3-position stepping con- troller. It cyclically evaluates data telegrams from a level electrode (e.g. NRG 26-60 or NRG 26-61) or a URW 60 universal converter.

In the level controller, the actual value is compared with the setpoint, and a corrective signal is formed to compensate the control deviation. In addition, switching operations can be triggered by the output contacts if defined switchpoints are reached.

The data are transferred via an ISO 11898 CAN bus using the CANopen protocol.

Function tests and failure diagnosis are performed using the URB 60 visual display and operating unit.

Possible combinations of functions and equipment

 

 

Function
Evaluation of CAN bus data telegrams from connected NRG 26-60 or NRG 26-61 level electrodes.  

●
Evaluation of CAN bus data telegrams from the connected URW 60 universal converter in combination with a 4-20 mA current output from a level electrode.  

 

●
3-point stepping controller with propor- tional plus integral control (PI controller) and actuation of an electrically operated control valve.  

 

●
 

MIN/MAX water level alarm.

  

●
Current inputs for steam and feedwater flowrate (3-component control)  

●
The valve position can be displayed if a potentiometer is connected (in the control valve). The valve position is then shown on the URB 60 visual display and operat- ing unit.  

 

●
 

Actual value output 4-20 mA

  

●

Supply voltage

  • 24V DC +/-20%

 

Power consumption

  • 5 W

 

Current input

  • 0.3 A

 

Required external fuse

  • 5A

 

Input/output

  • Interface for CAN bus to ISO 11898, CANopen, insulated

 

Inputs of the NRR 2-60

  • 1 x analogue input for potentiometer 0-1000 W, two-wire connection (indication of valve position)
  • 1 x analogue input IN 2, 4-20 mA (feedwater flowrate) – (optional)
  • 1 x analogue input IN 3, 4-20 mA (steam flowrate) – (optional)

 

Outputs of MIN/MAX contacts

  • 2 x volt-free relay contacts (changeover relays), contact material AgNi0.15, AgSnO2
  • Maximum switching current – 8 A at 250V AC / 30V DC – cos ? = 1
  • Inductive loads must have interference suppression (RC combination) as per the manufacturer’s specification

 

Off delay of MIN/MAX output relays

  • 3 seconds (default)

 

On delay of MIN/MAX output relays

  • 0 seconds (default)

 

Outputs of control valve OPEN/CLOSED

  • 2 x volt-free relay contacts (changeover relays), contact material AgNi0.15, AgSnO2
  • Maximum switching current – 8 A at 250V AC / 30V DC – cos ? = 1
  • Inductive loads must have interference suppression (RC combination) as per the manufacturer’s specification

 

Analogue output

  • 1 x actual value output 4-20 mA, g. for an actual value display
  • load resistance 500 W

 

Indicators and controls

  • 1 x multicolour LED (orange, green, red)
    • orange = power up
    • green = running
    • red = malfunction
  • 1 x 4-pole code switch for setting the controller group and baud rate

GESTRA NRR 2-60

Level Controller

GESTRA: The Ultimate Solution for Industrial Steam & Fluid Control Systems

Reliable & Intelligent Level Control for Industrial Steam Systems

The GESTRA NRR 2-60 Level Controller is a high-performance electronic controller designed for precise water level regulation in steam boilers and industrial vessels. Engineered by GESTRA, a global leader in steam and condensate management, the NRR 2-60 ensures maximum operational safety, energy efficiency, and long-term system reliability.

If you are looking for a trusted boiler level controller that meets international standards and performs consistently in demanding industrial environments, the GESTRA NRR 2-60 is the optimal solution.

The GESTRA NRR 2-60 Level Controller is widely used in power plants, chemical processing, food & beverage industries, oil & gas facilities, and manufacturing plants worldwide.

Key Benefits:

  • ✔ Accurate and stable water level control

  • ✔ Compatible with GESTRA level electrodes

  • ✔ Designed for continuous industrial operation

  • ✔ Enhances boiler safety and efficiency

  • ✔ Long service life with minimal maintenance

The GESTRA NRR 2-60 works in combination with conductive level electrodes to control pump or valve operations based on water level signals. Its advanced electronic design ensures fast response times and precise switching performance.

Main Features:

  • Electronic level controller for conductive level measurement

  • Supports single-point or multi-point level control

  • Ideal for steam boilers, condensate tanks, and pressurized vessels

  • DIN rail mounting for easy installation

  • LED status indicators for quick diagnostics

The GESTRA NRR 2-60 Level Controller is suitable for a wide range of industrial applications, including:

  • Steam boiler water level control

  • Feedwater pump control systems

  • High-pressure and low-pressure boilers

  • Condensate and flash tanks

  • Industrial process vessels

Its robust design allows it to operate reliably even in harsh industrial conditions.

Compared to conventional or generic level controllers, the GESTRA NRR 2-60 offers:

  • Higher measurement accuracy

  • Better resistance to electrical interference

  • Full compatibility with original GESTRA electrodes

  • Proven performance in critical boiler safety systems

Using genuine GESTRA level control solutions significantly reduces operational risk and unplanned downtime.

The GESTRA NRR 2-60 Level Controller is manufactured in compliance with international industrial and boiler safety standards, making it suitable for use in regulated environments and safety-critical applications.

We supply original GESTRA products with guaranteed authenticity and professional technical support.

What You Get:

  • 100% Genuine GESTRA NRR 2-60

  • Competitive pricing

  • Fast delivery worldwide

  • Technical consultation & after-sales support

We supply original GESTRA products with guaranteed authenticity and professional technical support.

What You Get:

  • 100% Genuine GESTRA NRR 2-60

  • Competitive pricing

  • Fast delivery worldwide

  • Technical consultation & after-sales support

We supply original GESTRA products with guaranteed authenticity and professional technical support.

What You Get:

  • 100% Genuine GESTRA NRR 2-60

  • Competitive pricing

  • Fast delivery worldwide

  • Technical consultation & after-sales support

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