DOLD. Undervoltage Relay RK 9871

Category - Monitoring devices

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Our catalogue covers a complete variety of products of the DOLD. DOLD creates vital and groundbreaking items that always detect the resolution for the hard industrial concerns at any time. The DOLD achieves the high standards of equipment performance while creating the modern technologies that upgrade the operating cycle of the industries. The DOLD DOLD. Undervoltage Relay RK 9871 is one of the perfectly manufactured goods. DOLD DOLD. Undervoltage Relay RK 9871 attributes extreme exactness, which offer wide range of automatic and electric resolutions to fulfill all application needs. Because of the high quality of constituents, DOLD DOLD. Undervoltage Relay RK 9871 guarantee long duration performance.
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Description

Function	Undervoltage Relay
1- / 3-phase	1, 3
Measuring range max.	AC 400 V
Output contacts	1 w, 2 w
Operate delay	+
Enclosure design	Installationsverteiler
Width	17,5 mm
Type	RK 9871

According to IEC/EN 60255-1 For installations according to DIN VDE 0100-718 and DIN VDE 0108-100(replacement of DIN VDE 0108 ) Detection of undervoltage in 3-phase systems Without separately auxiliary voltage(internal supply from all 3 phases) LED indication for fur operation voltage and contact position De-energised on trip RK 9871.71: 1 changeover contactRK 9871.72: 2 changeover contacts With fixed time delay of 0.5s for fault indication With fixed time delay of 1min for reset With fixed response value at AC 195.5V As option with test-button for function control Width 17,5 mm''