Exhibit with us
*mydirectindustry  
English
  1. Electricity - Electronics
  2. Switch and Relay
  3. Current protection relay
  4. DOSSENA

Earth-leakage protection relay DER4/1I
current2 NO/NCthree-phase

Earth-leakage protection relay - DER4/1I - DOSSENA - current / 2 NO/NC / three-phase
Earth-leakage protection relay - DER4/1I - DOSSENA - current / 2 NO/NC / three-phase
Add to favorites
Compare this product
 
Go to the DOSSENA website for more information

Characteristics

Measured/monitored value
earth-leakage, current
Contact configuration
2 NO/NC
Network
three-phase, AC, single-phase
Applications
for generators, for electric motors, for feeder, for forklift trucks, emergency stop, for transformers, transmission line, for three-phase motor pumps, capacitor, for recloser controls, switchgear, for pump, grid and system, for electric vehicle charging stations
Mounting
panel-mount
Reset
automatic reset, manual reset
Norms
IEC
Other characteristics
digital, programmable, configurable, differential, adjustable, electronic, with fault indication, smart
Tripping current

Max.: 30,000 mA

Min.: 0.03 mA

Trigger voltage

Max.: 400 V

Min.: 48 V

Description

The DER4 series differential toroid relays can be used on TT and TN type LV AC networks. They make it possible to achieve adequate selectivity and differential protection thanks to the wide regulation of the leakage current threshold (0.03÷30A) and of the trip delay threshold (instantaneous÷30 seconds). The DER4s comply with the stringent regulations in force (IEC 60947-2:2019) thus satisfying a dual need: system safety and service continuity. Dossena offers a complete range of differential relays rich in functions. New technology, ease of use, great reliability, ease of installation and programming, performance and "user friendly" design. The quantities and parameters are displayed on a large, very bright dot matrix display which changes color in relation to the operating status of the instrument (Green=measurement/monitoring, Blue=programming, Red=alarm/intervention). - type A - 1 trip threshold (Trip) with 2 output contacts (NO-C-NC) - continuous check of the correct functioning of the opening coil - continuous check of the correct functioning of the D series toroidal transducer - self-diagnosis with description of the problem on the display

Catalogs

No catalogs are available for this product.

See all of DOSSENA‘s catalogs
Go to the DOSSENA website for more information

Other DOSSENA products

Earth leakage relay type A

See all DOSSENA products
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.
 Distributor list -