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Earth Leakage Relay
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Digital Earth Leakage Relay
Digital Earth Fault Relay
Digital Over Current Relay
Digital Combined Over Current & Earth Fault Relay
Digital Motor Protection Relay
Power Quality Network Analyzer Meter
Digital Multimeter
Digital Power Factor Regulator
Voltage Monitoring Relay
Digital Time Switch
External Plug-In Module
Zero Phase Current Transformer
Earth Fault Indicator
All Products
Digital Earth Leakage Relay
Digital Earth Fault Relay
Digital Over Current Relay
Digital Combined Over Current & Earth Fault Relay
Digital Motor Protection Relay
Power Quality Network Analyzer Meter
Digital Multimeter
Digital Power Factor Regulator
Voltage Monitoring Relay
Digital Time Switch
External Plug-In Module
Zero Phase Current Transformer
Earth Fault Indicator
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DP-21 (DTL)
Category :
Digital Earth Fault Relay
Earth Fault Relay
Features
True RMS Measurement with SPARC and DCOI Algorithm
Fundamental Signal Detection
Real Time Display of Earth Fault in (%)
Fault / lo-set & hi-set Trip LED Indication
Fault Start Event Recording & LED Indication + Output
Pre-Alarm LED Indication + Output
Trip Event Memory
(non-volatile 7 previous records)
Fault Start Event Memory
(non-volatile 4 previous records)
Selectable Frequency (50/60 Hz)
Programmable Relay Output Contact for K2
Last Trip Elapsed Time (up to 99days)
Software Lock to Prevent Unauthorized Setting
Complies with: IEC-60255-26/27; BS EN 50121-5 Standards
ANSI Code: 50N, 51N
External Plug-in Module for: A-01s / A-01sp
(RS-485 MODBUS RTU) isolated type
Front Panel
Tech Data
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PDFs Download
DELAB-Digital-Earth-Fault-Relay-DTL-DP-21-Catalog.pdf
DELAB-Digital-Earth-Fault-Relay-DTL-DP-21-User-Guide.pdf
Modbus-Reg-Map-DP-21_DP-31-1.00.pdf
DELAB-Digital-Earth-Fault-Relay-DTL-DP-21-Auto-Cad-File.dwg
Product Video
Product Video 1
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