The Siemens 3RT6018-1BB41 is a SIRIUS 3-pole AC-3 contactor designed for reliable motor switching in industrial applications. With a 18A current rating, it provides robust performance for controlling three-phase loads.
Key Specifications
Parameter Specification
Product Type 3-pole AC Contactor
Rated Current 18A (AC-3, 400V)
Rated Voltage 690V AC
Control Voltage 230V AC (50/60Hz)
Poles 3 NO (Main Contacts)
Auxiliary Contacts 1 NO + 1 NC (convertible)
Mechanical Life 10 million operations
Electrical Life 300,000 operations (AC-3)
Mounting DIN rail (35mm)
Dimensions 55 × 98 × 90 mm
Weight 0.4 kg
Protection Class IP20
Certifications CE, UL, cULus
Technical Features
Silver alloy contacts for long service life
Modular design with snap-on accessories
LED status indicator (optional)
Screw terminal connections
Compact design saves panel space
Typical Applications
Motor starters (up to 7.5kW @ 400V)