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Comparison Zubr D40t vs Zubr D40

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Devicevoltage Monitoring Relaysvoltage Monitoring Relays
Voltagevariablevariable
Number of phases11
MountdIN raildIN rail
Width (unit)3 U3 U
Specs
Power8.8 kVA8.8 kVA
Rated current40 A40 A
Maximum current50 A50 A
Voltage measuring range100 – 400 V100 – 400 V
Cut-off time (lower limit)1.2 sec1.2 sec
Off time (upper limit)0.04 sec0.04 sec
Reclosing delay3 – 600 sec3 – 600 sec
Lower cut-off limit120 – 210 V120 – 210 V
Upper cut-off limit220 – 280 V220 – 280 V
Functions
display
operation indicator
thermal protection
fault memory
display
operation indicator
 
fault memory
General
Adjustmentdigitaldigital
Protection levelIP20IP20
Dimensions70x85x53 mm70x85x53 mm
Weight210 g210 g
Added to E-Catalogdecember 2017december 2017

Functions

Display. As a rule, control relays are equipped with simple segment LCD displays that can display numbers and some special characters. This screen performs two main functions. Firstly, during operation it displays key network parameters - voltage, power and/or power, as well as notifications of problems; Some models provide several separate displays, each with its own parameter. Secondly, the screen is used when changing device settings.

Operation indicator. A pointer indicating the operation of a device, and often a specific mode of operation. Note that in this case we are talking about the simplest indicators - for example, in the form of an LED, which lights up green in normal mode and lights up red after the protection is triggered. The display is not considered an operation indicator, although it can perform such a function.

Thermal protection. A safety system that turns off the device when it reaches a critical temperature. Some models also provide a shutdown when the permissible heating rate is exceeded. This function serves as additional insurance in case of malfunctions in the relay itself (for example, if the settings are lost and the device does not respond to overload), and in case of fire (in case of fire, the equipment must be de-energized).

Memory of emergency operations....The function of saving data on the state of the network during emergencies. Allows you to assess the situation of what happened after resuming work.
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