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Schneider EZ7SW-3P100A is an isolating switch with 3 poles and a rated current of 100A. It belongs to Schneider’s Easy 7 series of low-voltage terminal power distribution products and is mainly used in industrial and commercial Stromverteilungssysteme.
Kernfunktionen:
Circuit Isolation: Provides obvious electrical isolation during maintenance or overhaul to ensure personnel safety.
On/off Operation with Load: Can connect and disconnect load circuits below the rated current (it does not have overload and short-circuit protection functions).
Power Switching: Used for connection control between the power supply side and the load side.
Detaillierte technische Parameter
| Parameter | Wert | Beschreibung |
| Nennstrom | 100A | Maximum current that can be stably carried for a long time |
| Anzahl der Pole | 3P (Dreiphasig) | Controls three-phase circuits simultaneously |
| Nennspannung | 230/400V und | Suitable for standard three-phase 380V systems |
| Bemessungsisolationsspannung | 500V und | Maximum insulation withstand voltage |
| Nennbetriebsfrequenz | 50/60Hz | Applicable standard power frequency |
| Verschmutzungsgrad | Grad 2 | Suitable for general industrial environments |
| Mechanisches Leben | 1,700 mal | Maximum number of mechanical operation cycles of the switch |
| Elektrisches Leben | 15,000 mal | Maximum number of load-carrying operation cycles |
| Schutzgrad (IP-Bewertung) | IP20 | Prevents intrusion of solid foreign objects larger than 12mm |
| Verkabelungskapazität | Max. 150mm虏 | Cross-sectional area of connectable wires |
| Gewicht | Ca. 205G (3P) | Net weight of the product |
Anwendungsszenarien
- Industrielle Stromverteilungssysteme
– Main power switch for equipment, facilitating safe isolation during maintenance and overhaul.
– Isolation protection for motor control circuits.
- Commercial Building Power Distribution
– Main switch for floor distribution boxes.
– Group control for lighting systems.
- Stromverteilung für Privathaushalte
– Main incoming switch for villas or multi-storey residences.
– Dedicated isolation for large electrical appliances (such as air conditioners and water heaters).
- Temporäre Stromversorgungsszenarien
– Power control for construction site distribution boxes and mobile equipment.
Differences from Circuit Breakers
Key Differences Between EZ7SW (Isolating Switch) and EZ7 Circuit Breaker:
| Besonderheit | EZ7SW Isolating Switch | EZ7 Circuit Breaker (z.B., EZ7-100A) |
| Schutzfunktion | No overload/short-circuit protection | With dual protection against overload and short-circuit |
| Arc Extinguishing Capacity | Limited, suitable for normal load operation | Stark, capable of breaking short-circuit current (6Die) |
| Bewerbungsposition | Power supply side, used for isolation | Load side, used for protection and control |
| Betriebsfrequenz | Niedrig (1,700 mechanical life cycles) | Hoch (10,000 mechanical life cycles) |
Auswahlvorschlag: They are usually used in conjunction. The circuit breaker is responsible for protection, and the isolating switch is responsible for isolation to ensure maintenance safety.
Installations- und Nutzungsrichtlinien
- Installationsanforderungen:
– Vertikal installieren (Neigung ≤ 5°), with the operating handle in the upward position for closing.
– Install using standard DIN rails for easy replacement and expansion.
– Ensure the installation location has good ventilation, with an ambient temperature of -5℃ ~ +55℃.
- Verkabelungsspezifikationen:
– Connect the power supply to the static contacts (upper end) and the load to the moving contacts (lower end).
– Tighten with a torque of 3.5Nm (using M7 screws) um einen guten Kontakt zu gewährleisten.
– The cross-sectional area of the wire should be ≤ 150mm² to ensure a secure connection.
- Vorsichtsmaßnahmen bei der Verwendung:
Breaking with fault is strictly prohibited: Operate only when the load is working normally.
– Before maintenance, the circuit breaker must be disconnected first, then the isolating switch.
– Ensure hands are dry during operation to avoid electric shock risks.
Zusammenfassung
Schneider EZ7SW-3P100A is a reliable industrial-grade isolating switch, specifically designed for 380V three-phase power distribution systems, providing safe isolation and load-carrying operation functions. Although it does not have protection functions, it serves as the “letzte Verteidigungslinie” for electrical safety and is crucial in maintenance and overhaul processes.
Purchase Tip: If complete protection functions are required, it is recommended to use it with Schneider’s EZ7 series circuit breakers (z.B., EZ7-100A) to build a complete power distribution solution of “Isolierung + Schutz”
