Monitoring relays


Monitoring relays

A Monitoring Relay is a protective control device. The basic functions are to receive input signals, monitor and determine them, and output an alarm signal if a set value (threshold) is reached. Monitoring Relays monitor power supplies (voltage, current, power, phase), temperatures, and other analog signals and detects abnormalities in machines and equipment by determining values against alarm thresholds.

Time Chart

Monitoring Relays Time Chart  

Voltage monitoring relay with optional delay-on and delay-off timer function offers a very small hysteresis (difference between pull-in and drop-out voltage). The relay is equipped with a LED which indicates the status of the relay contacts and activation of the time delay.

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Monitoring relays

CMP relay - Current monitoring, AC input

  • Current monitoring relay
  • AC input (16-60 Hz)
  • 2 C/O contacts
  • Very sensitive, very accurate
  • Adjustable pull-in current via lockable knob
  • Total current range: 0.2-12 A
  • Weld-no-transfer contacts
  • No auxiliary power supply necessary
  • Screw terminals IP20
  • Mounting on 35 mm rail
  • Mounting on any surface via 2 screws
Monitoring relays

CU/CP-U900-D relay - Current monitoring

  • Miniature current monitoring relay
  • Instantaneous, 1 C/O and 1 N/O contact
  • Weld-no-transfer contacts
  • AC coil
  • Very sensitive
  • High insulation between coil and contact
  • Flat, square and tin plated relay pins for excellent socket connection / PCB mounting pins
  • Wide range sockets
  • Transparent cover
  • Optional positive mechanical keying relay to socket
Monitoring relays

CU/CP-U900-I relay - Current monitoring

  • Miniature current monitoring relay
  • Instantaneous, 1 C/O contact
  • AC or DC coil
  • Very sensitive
  • High insulation between coil and contact
  • Flat, square and tin plated relay pins for excellent socket connection /
  • PCB mounting pins
  • Wide range sockets
  • Transparent cover
  • Optional positive mechanical keying relay to socket
Monitoring relays

DI-U900 relay - Current monitoring

  • Current detection relay
  • Compact plug-in design
  • AC or DC coil
  • 2 C/O contacts
  • Magnetic arc blow-out
  • Flat, square silver plated relay pins for excellent socket connection
  • Wide range sockets
  • Integrated snap lock
  • Transparent cover
  • High DC breaking capacity
  • Optional positive mechanical keying relay to socket
  • Flexibility by many options
Monitoring relays

IB 200 relay - Current monitoring

  • Current monitoring relay
  • Adjustable current measured with an external shunt
  • 2 C/O contacts (form Z)
  • -40 °C...+85 °C operating temperature
  • Optional lockable knob
Monitoring relays
New product

MTDV4-U200 relay - Voltage monitoring, timer delay…

  • DC voltage monitoring relay with time delay
  • Compact plug-in design
  • 4 C/O contacts
  • Pull-in and drop-out voltage adjustable via internal screws
  • Also available with fixed pull-in and drop-out voltage (no internal screws)
  • Very small hysteresis possible
  • Time delay on pull-in and/or drop-out
  • 1 delay time adjustable with a lockable knob, other delay time fixed
  • Also available with fixed time delays (no knob)
  • Time delay range: 0 ... 60 s
  • No auxiliary supply necessary
  • 1 LED for status indication
Monitoring relays

NSE relay - Over- and undervoltage monitoring

Obsolete
  • Overvoltage and undervoltage monitoring relay with delay on pull-in
  • AC input (50 Hz)
  • 2 C/O contacts
  • Overvoltage and undervoltage adjustable via lockable knobs
  • Overvoltage adjustment: 100...130%
  • Undervoltage adjustment: 70...100%
  • Delay time adjustable via lockable knob
  • Time delay range: 1...10 s
  • Auxiliary power supply necessary
  • Auxiliary power supply failure also detected
  • Screw terminals IP 20
  • Mounting on 35 mm rail
  • Mounting on any surface via 2 screws
Monitoring relays

RC-19A relay - Current monitoring

  • AC current monitoring relay
  • Compact design
  • 1 C/O contact
  • Easy installation
  • High continuous overcurrent possible
  • Protection against short circuit and low impedance
  • Also suitable for earth fault protection
Monitoring relays

UB 001 relay - 1 level load shedding

  • Load shedding relay – 1 voltage level
  • 1 N/O solid state contacts
  • Plug-in design with secure locking feature for maximum ease of maintenance
  • -40 °C...+85 °C operating temperature
Monitoring relays

UB 002 relay - 2 Level load shedding

  • Load shedding relay – 2 voltage levels
  • 2 N/O solid state contacts
  • Plug-in design with secure locking feature for maximum ease of maintenance
  • -40 °C...+85 °C operating temperature
Monitoring relays

UB 003 relay - 3 Level load shedding

  • Load shedding relay – 3 voltage levels
  • 3 N/O solid state contacts
  • Plug-in design with secure locking feature for maximum ease of maintenance
  • -40 °C...+85 °C operating temperature
Monitoring relays

UB 200 relay - Voltage monitoring

  • Voltage monitoring relay – 1 voltage level
  • 2 C/O contacts, form Z
  • Plug-in design with secure locking feature for maximum ease of maintenance
  • -40 °C...+85 °C operating temperature
Monitoring relays

UB A400 relay - Voltage monitoring

  • Load shedding relay – 1 voltage level
  • 4 C/O contacts, form Z, 5 A resistive
  • Plug-in design with secure locking feature for maximum ease of maintenance
  • -40 °C...+85 °C operating temperature
Monitoring relays

UB C200 relay - Voltage monitoring

  • Voltage monitoring relay – 1 voltage level
  • 2 C/O contacts, form C
  • Plug-in design with secure locking feature for maximum ease of maintenance
  • -40 °C...+85 °C operating temperature
Monitoring relays

UMD-U300 relay - Voltage monitoring, AC input

  • Voltage monitoring relay
  • AC input
  • 1 C/O contact and 1 N/O contact
  • Pull-in voltage adjustable with a lockable knob
  • Also available with fixed pull-in voltage (no knob)
  • Very small hysteresis
  • No auxiliary supply necessary
  • Two LEDs for status indication
  • Flat, square and silver plated relay pins for excellent socket connection
  • Integrated snap lock
  • Optional positive mechanical keying relay to socket
Monitoring relays

UTC relay - Voltage monitoring & off delay

  • Voltage control time delay relay
  • Total time delay range from 4 min to 60 min, fixed in factory
  • 1 N/O solide state contact, 3 A
  • Plug-in design with secure locking feature for maximum ease of maintenance
  • -40 °C...+85 °C operating temperature