Roll over image to zoom in
MONITORING RELAY VOLTAGE HRN3-81
Product code
2707288
The relay is designed to monitor undervoltage (HRN3-80), phase sequence, frequency, and imbalance in a three-phase network. Power supply from the circuit being monitored. HRN3-80: Monitors voltage drop below the lower limit (Umin). HRN3-80: The lower limit Umin is set as a percentage of the selected scale. Wide monitored voltage range 208–480 V. Adjustable time delay (to eliminate short voltage spikes). Measures the true RMS value of voltage. Adjustable imbalance level with option to disable it. Technical specifications: Supply voltage: 24-240 V AC/DC Contact: 1 x changeover contact 16 A Breaking capacity: 4000 VA/AC1, 384 W/DC Breaking voltage: 250 V AC and 24 V DC Width 1-mod This product description is an automated translation of the original Finnish description.
Product details
Technical specifications
Product class (ETIM)Voltage monitoring relay (EC001438)
Type of electric connectionClip connection
With detachable clampsno
Voltage measuring range 10 - 0 V
Voltage measuring range 20 - 0 V
Type of voltage measuring rangeAC
Response value voltage0 - 0 V
Single-phase under voltage possibleno
Three-phase under voltage possibleyes
Single-phase overvoltage possibleno
Three-phase overvoltage possibleyes
Single-phase hysteresis possibleno
Three-phase hysteresis possibleyes
Contains function DC-under voltageno
Contains function DC overvoltageno
Contains function DC-voltage hysteresisno
Product codes
SAPDET682
STK2707288
PLC2707288
GTIN/EAN8595188188821
Manufacturer part numberHRN3-81
Vendor material number2707288
Basic information
Package measurements (L x W x H)28 x 100 x 80 mm
Package volume0.224 l
Package weight0.08 kg
Base uniteach
Package units1
Package contents–
UNSPSC39122325
BrandELKO EP
VendorUTU OY
Documents (2)
Brochures & documents
Links