Technical Parameters (Specifications) SSD: Series designation (Solid-State relay / Electronic overload) C: Mounting style (C = Direct mounting with contactor) 30: Current rating (30 A frame size) DF: Current range (likely indicates specific range within 30A frame) 7: Contact configuration Q: Terminal type (Q = Screw terminals) Electrical Data Product Type: Electronic overload relay Rated Insulation Voltage: 690 V AC maximum Rated Operational Voltage: Up to 690 V AC (three-phase) Frequency: 50/60 Hz Control Supply Voltage: Self-powered (from main circuit) or external 24 V DC / 110-240 V AC depending on variant Current Settings Current Range: Adjustable within 30 A frame (typical ranges: 10-30 A, 20-30 A, etc. - verify exact range for "DF" variant) Overload Setting: Adjustable via dial Trip Class: Selectable (typically Class 10, 15, 20, 30) Phase Loss Sensitivity: Trip within 3 seconds (typical) Phase Imbalance Protection: Adjustable or fixed (typically 30-50%) Protection Functions Overload Protection: Thermal model with selectable trip class Phase Loss Protection: Instantaneous trip upon phase failure Phase Imbalance Protection: Detects current imbalance between phases Short Circuit Protection: Coordination with backup fuse/MCCB required Ground Fault Protection: Optional on some variants Outputs Trip Relay: 1 or 2 SPDT relays (250 V AC, 5 A typical) Output Contact Configuration: 1 changeover (C/O) or 1 N/O + 1 N/C contact Trip Indication: Mechanical flag or LED indicator Alarm Output: Optional (for pre-alarm indication) Reset Modes Manual Reset: Via push button Auto Reset: Selectable (with adjustable delay) Remote Reset: Optional Mechanical Mounting Mode: Direct mounting with contactor (or separate DIN rail mounting with adapter) Compatible Contactors: Specific TeSys D or similar series contactors (matching frame size) Terminal Type: Screw terminals (up to 6 mm² wire) Dimensions (W x H x D): Approximately 45 mm x 80 mm x 100 mm (typical) Net Weight: Approximately 0.3 kg Environmental Degree of Protection (IP): IP20 (enclosure) Operating Temperature: -20...60 °C Storage Temperature: -30...80 °C Relative Humidity: 5...95% (non-condensing) Altitude: Up to 2000 m Certifications Standards: IEC 60947-4-1, UL 508, CSA C22.2 Certifications: CE, UL, cUL, CCC, EAC (depending on variant) RoHS Compliance: Yes