Technical Parameters Parameter Category Specification Product Family / Type Self-Powered Three-Phase Current Monitoring Relay Protection Functions • Phase Loss Detection • Phase Sequence (Rotation) Monitoring • Current Asymmetry (Unbalance) Protection Standard Compliance IEC/EN 60947-5-1 Power Supply Self-powered from the secondary side of the connected current transformers (CTs). Rated Input Current (In) 1 A AC (Secondary current of the CTs, defined by -600-). Operating Current Range 0.1 A to 1.3 A AC per phase. System Frequency 50 / 60 Hz. Protection Settings • Threshold Current (I<) Adjustable via rotary switch. Sets the minimum current level for phase presence detection. Typical range: 0.15 x In to 0.95 x In. • Asymmetry Trip Level Adjustable via rotary switch. Sets the permissible current imbalance between phases as a percentage. Typical range: 20% to 70% asymmetry. • Phase Sequence Fixed for one direction (e.g., L1-L2-L3). Trip on reversal is instantaneous. • Response Time Fixed internal delay (typically < 0.5s) to avoid nuisance tripping on transient conditions. Output Contact • Type 1 Changeover (CO) contact (SPDT: 1 NO + 1 NC). • Rated Operational Current (Ie) 6 A at 250 V AC (Utilization category AC-15). Binary Input • Reset / Start Input (A1, A2) 1 input. Requires a 24-48 V DC pulse (defined by suffix -11) to close the output relay after a fault condition is cleared or upon initial energization. Visual Indication 2 LEDs: - GREEN (On): Power OK, correct phase sequence, all phase currents above threshold. - RED (Trip): Fault detected (Phase Loss, Sequence Error, or Asymmetry). Connection Terminals Screw-clamp terminals for: - 3 Current Inputs (From 1A secondary CTs, must be connected in Star/Wye). - Output Contact (13-14 NO, 21-22 NC). - Reset Input (A1, A2). Electrical Isolation Reinforced insulation between current circuits, output contact, and reset input. Operating Temperature -25°C to +55°C Storage Temperature -40°C to +85°C Mounting Standard 35mm DIN Rail (EN 60715). Housing & Protection Self-extinguishing thermoplastic (PA 6.6), IP40 (front), IP20 (terminals). Dimensions (W x H x D) Approx. 22.5 mm x 100 mm x 112 mm (1 module width = 22.5mm). Weight Approx. 0.15 kg. Certifications CE, cULus, RoHS.