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Digitally adjustable 3-phase over& under-voltage + phase sequence control relay, suitable for 3-phase 380V systems, used for grid anomaly protection of industrial equipment.
- Core Protection & Adjustment Parameters
| Artikel | Spezifikation | Beschreibung |
| Overvoltage threshold | 400–460V AC (einstellbar) | Digital adjustment, accuracy ±1V |
| Undervoltage threshold | 230–360V AC (einstellbar) | Digital adjustment, accuracy ±1V |
| Phasenfolgeschutz | Phase sequence error detection / non-phase-sequence mode switchable | Prevents motor reverse rotation and mechanical damage |
| Fault delay time | 0.1–10 Sekunden (einstellbar) | Flexibly adapts to different load characteristics |
| Versorgungsspannung | 3-phase AC 380V (no neutral wire required) | Wide voltage for industrial power grids |
| Operating frequency | 50/60Hz (auto-adaptive) | Compatible with global main power frequencies |
- Elektrisch & Mechanische Eigenschaften
| Artikel | Spezifikation | Beschreibung |
| Kontaktbewertung | 5A/250V AC (ohmsche Last) | Reliable driving for control circuits |
| Contact type | 1 NEIN + 1 NC | Standard control contact configuration |
| Schutzgrad | IP20 | Must be installed in a control cabinet |
| Zertifizierungen | CE, UL, CSA | International safety certifications |
| Stromverbrauch | Low-Power-Design | Energy-saving, low system load |
| Isolierung | Complies with industrial electrical safety standards | Ensures electrical isolation safety |
- Umweltfreundlich & Installationsparameter
| Artikel | Spezifikation | Beschreibung |
| Betriebstemperatur | -10°C to +55°C | Adapts to harsh industrial environments |
| Lagertemperatur | -25°C bis +70°C | Safe range for transport and long-term storage |
| Relative Luftfeuchtigkeit | 5–95 % (nicht kondensierend) | Suitable for humid industrial environments |
| Montage | 35mm DIN-Schiene / Frontplattenmontage | Flexible for control cabinet layout |
| Abmessungen | Kompaktes Design (subject to physical product) | Spart Platz im Schrank |
| Gewicht | Lightweight design (subject to physical product) | Easy installation and layout |
- Hauptmerkmale & Vorteile
- Three-in-one protection: Integrates overvoltage, undervoltage and phase sequence protection.
- Digital precise adjustment: Higher accuracy (±1V) than analog type, more intuitive setting.
- Non-phase-sequence mode: Switchable via DIP switch for wider compatibility.
- No neutral wire design: Direct 3-phase power supply, simplified wiring.
- Clear fault indication: LED indicators show status and fault type clearly.
- Wide temperature operation: -10°C~+55°C for mining, metallurgy and harsh conditions.
- Typische Anwendungen
Motoren & Pumps: 3-phase asynchronous motors, Kompressoren, Wasserpumpen, Fans.
Automatisierte Linien: CNC machines, robot stations, Verpackungsmaschinen.
Gebäudeelektrik: Central air conditioning, Aufzüge, fire pump rooms.
Special conditions: Petrochemical auxiliary equipment, mining machinery.
- Key Matching for Selection & Ersatz
- Function matching: Must include overvoltage, undervoltage and phase sequence protection.
- Parameter consistency: Overvoltage 400–460V, undervoltage 230–360V, delay 0.1–10s.
- Kontakte & Leistung: 5A/250V AC contacts, 3-phase 380V (nicht neutral).
- Installation compatibility: DIN-Schiene / panel mounting, direct replacement for Siemens 3UG4632, Schneider RM22TG20 etc.
