Siemens SIRIUS 3RF34 Solid-State Contactors
Siemens SIRIUS 3RF34 Solid-State Contactors are designed for switching motors and offer 3-phase operation for direct-on-line starting. These devices are ideal for frequently switching AC drives up to 7.5 kW and reversing up to 3kW. The 3RF34 solid-state contactors are equipped with a 2-phase control, ideal for typical motor current circuits that do not connect to the neutral conductor. These devices are fully insulated and can be mounted directly on SIRIUS motor starter protectors, overload relays, and current monitoring relays, enabling very simple integration into motor feeders. The 3RF34 contactors are available in two versions: SIRIUS 3RF34xBB 3-pole solid-state contactors and SIRIUS 3RF34xBD 3-pole solid-state reversing contactors. These SIRIUS 3RF34 solid-state contactors are ideal for load feeders.
The SIRIUS 3RF34xBB 3-phase solid-state contactors are instantaneous, 2-phase-controlled contactors in an insulating enclosure. These devices are available in a width of 45mm up to 5.2A and in a width of 90mm up to 16A.
The SIRIUS 3RF34xBD 3-phase solid-state reversing contactors integrate four conducting paths to a reverse switch into a single enclosure. These devices are available in widths of 45mm up to 2.2kW and 90mm up to 3kW.
Features
- Insulated enclosure with integrated heat sink, "ready to use"
- Compact and space-saving design
- Solid-state reversing contactors with integrated interlock
- High degree of protection
- Integrated mounting foot for snapping onto a DIN rail or for mounting on a support plate
- Variety of connection methods
- Plug-in control connection
- Display via LEDs
- Wide voltage range for AC-rated control supply voltage