The ELR01PN measures highly sensitive currents of 0.06 mA to 1 A and continuously displays them via an LED bar indicator. It offers adjustable sensitivity, time delay, test and reset functions, as well as two flexible relay outputs.
The device automatically detects toroid faults or interruptions that require tripping. Its functionality is further enhanced by auto-reclosure, auto-reset, and pre-alarm features. In addition, predefined profiles for certain applications are available.
Using NFC and a dedicated app, the user can configure all settings, adjust filter limits, and access historical data—all available in a compact DIN-rail housing with a wide auxiliary voltage range and IEC/UL certification.
The ELR…PN is a fully featured, Earth Leakage Relay that can be easily configured using the built-in pre-defined “Profiles” or tailored specifically to suit the application.
The app allows the user to define how the unit should operate as well as configure and set parameters such as the toroid ratio, relay logic (i.e. energise or de-energise on trip) and define how the Auto-Reclosure mode should operate.
Additionally, the option to set a filter cut-off point can also be defined therefore allowing the unit to ignore signals above a certain frequency.
Utilising NFC technology allows the unit to be used in a “Passive” mode whereby settings can be made in the app and written to the unit without the need for the unit to be powered. This feature is useful where a panel needs to be shut down and power removed (for safety reasons) before any work or alterations need to be made.
Using the app, the user also has the ability to read back the configuration of a unit in order to establish/check the settings. Additionally, it is possible to measure (and display) the actual leakage current present in the system.
An option to recall previous tripping information (accessed via the Logs option in the app) provides the user with historical data allowing the user to establish a pattern in the tripping occurrences and hence make any necessary adjustments.
Edwin Brown
Vepac Electronics
Tel. +27 11 454 8053
sales@vepac.co.za
