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Earth-leakage protection relay ELR-3B
currentACAC/DC

earth-leakage protection relay
earth-leakage protection relay
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Characteristics

Measured/monitored value
earth-leakage, current
Network
AC, AC/DC, DC
Other characteristics
programmable, digital, differential, automatic reset, configurable, for generators, IEC, DIN rail, for feeder, manual reset, for three-phase motor pump, for recloser control, adjustable, modular, electronic, compact, with fault indication, for electric motors, transmission line
Trigger voltage

230 V, 250 V

Description

Residual Current Monitor device Type B. Associated to external core balance transformer the CTB-1/xxx family. It has 2 programmables outputs relays. Main trip and prealarm signal. It has one free voltage input for external TRIP/RESET. Mounting in DIN rail 466277 or PANEL 72x72 by means of accesories (3EDA03). Displays setting values and instantaneus earth leakage current value. Field of application Type B relays are widely used where they can generate, in case of failure, continuous discharge currents; Common application fields are: - frequency converters - medical devices such as radiography and / or TAC equipment - inverters for photovoltaic systems (side c.a.) - power supply lifts - test facilities in laboratories - means of production in the yards - loading stations and forklift trucks - cranes for industry, crafts and trade - mechanical workshops, for example for arc welding machines - metalworking machines for numerical control

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*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.