Siemens Sirius 3RT19 Contactor and 3RH19 DIN Rail Control Relay

A wide range of Siemens SIRIUS DIN Rail Auxiliary Contactors from the 3RT and 3RH Series. The relay 3RH1 is used for auxiliary and control circuits and for AC or DC. The housing is identical to that of the SIRIUS motor contactors 3RT1 and uses the same accessories. The basic unit has 4 contacts which can be expanded by up to 4 contacts with an auxiliary switch block.

The contactors are suitable for use in any climate. They are finger-safe according to EN 50274. The accessories for the 3-pole SIRIUS contactors can also be used for the 4-pole versions.

The relays are for operation in plants which are subject both to considerable variations in the control voltage and to high ambient temperatures, e.g. in railway applications. The contactors are also suitable for switching mixed loads in distribution systems (e. g. for supplying heaters, lamps, motors, PC power supply units). The contactors are suitable for switching and controlling DC motors as well as all other DC circuits.

• DC operation
• DC solenoid system
• Screw terminals
• Operation in dusty atmospheres
• Solid-state circuits with rated operational currents
• Hard gold-plated contacts
• For screw and snap-on mounting onto standard mounting rail
• Contactor control unit
• Solenoid fitted with varistor
• Please see Technical Specification for available Contact Blocks