Main and EMERGENCY-STOP Switches SENTRON 3LD up to 250 A

The application options of SENTRON 3LD2 disconnector units are manifold. After power failure, they provide for safe disconnection of the entire electrical equipment. They also switch AC motors, air-conditioning and solar plants. Both our switch disconnectors and our EMERGENCY-STOP switches stand apart from the rest thanks to their first-class quality. SENTRON 3LD2 main and EMERGENCY-STOP switches have been tried-and-tested in numerous applications and are particularly suitable for processing machines in the field of machine and conveyor system construction as well as for the chemical and food and beverages industry.
 

International standards and approvals

• Certified as manually operated switch disconnector complying with disconnector conditions in acc. with IEC 60947-3, DIN VDE 0660 Part 107, EN 60947-3
• Applicable as ON-OFF, EMERGENCYSTOP and main switch in acc. with DIN EN 60204-1
• For international applications, also versions in acc. with UL 508 are available.

The SENTRON 3KA/3KE switch disconnectors are the experts for fuseless disconnection operations in all low-voltage networks, with high switching capacity up to 690 V. Available as 3- or 4-pole version, they perfectly master "disconnection" tasks and "switching under load" in distribution boards employed in residential and functional buildings as well as in industrial power distribution boards.

International standards and approvals

• IEC 60947-1, IEC 60947-3, DIN VDE 0660 Part 107
• Climate-proof
• For application as safety switch, we offer switch disconnectors in type-tested 8HP molded-plastic distribution board enclosure in degree of protection IP65
• High switching capacity up to 690 V

3KL/3KM switch disconnectors are ideally suited as main and EMERGENCY-STOP switches with high switching capacity up to 690 V. Thanks to their fused design, they additionally provide short-circuit and overload protection. In connection with SITOR semiconductor fuses, they even master high requirements, e.g. in UPS systems, frequency converters and capacitor control systems.

International standards and approvals

• IEC 60947-1
• IEC 60947-3
• VDE 0660 Part 107

In-Line Switch Disconnectors SENTRON with Fuses 3NJ6 up to 630 A

In contrast to the 3NJ4 in-line fuse switch disconnectors, the devices of the 3NJ6 range are equipped with an integrated switching element with single- or double-break and having a high switching capacity up to 690 V. They are particularly suitable for applications in which many cable outlets for power distribution have to be accommodated in minimum space. The intelligent plug-in connection system facilitates the devices' easy and comfortable mounting.

International standards and approvals

• IEC 60947-1, IEC 60947-3
• EN 60947-3
• DIN VDE 0660 Part 107
• CCC 

Fuse Switch Disconnectors 3NJ4, 3NJ5 up to 2000 A, In-Line

3NJ4 in-line fuse switch disconnectors combine the functions "load switching" and "disconnecting" in a single system. Thanks to an integrated LV HRC fuse, they additionally provide reliable overload and short-circuit protection. The very compact disconnectors can also be optimally mounted in confined spaces thanks to manifold connection options - making them the perfect devices for the occasional manual switching and disconnection of load feeders and current distributions in industrial and functional buildings.

International standards and approvals

• IEC 60947-1, IEC 60947-3
• EN 60947-3
• DIN VDE 0660 Part 107
• CCC