Overview
The 3RT1015-1BB44-3MA0 is a Siemens 3-pole contactor, size S00, with a 3.3 W DC coil rated at 24 V DC.
The 3-pole contactor uses a 24 V DC coil drawing 3.3 W. Switching current depends on load type and voltage. The screw-type terminals accept 2x (0.5...1.5 mm²) solid or 2x (0.75...2.5 mm²) finely stranded wire, with a maximum of 2x (0.75...4 mm²). The auxiliary contact block provides 2x (20...16), 2x (18...14), and 1x 12 contacts. Short-circuit protection for the main circuit requires a 35 A gL/gG fuse (type 1 coordination), and for the auxiliary circuit a 10 A gL/gG fuse.
Applications
This contactor is suited for switching motors, resistive loads, and lighting circuits in industrial control panels, conveyor systems, pumps, and HVAC equipment. The 3-pole configuration covers three-phase motor starting and disconnection, while the DC coil allows direct integration with PLC or relay logic outputs without an AC interface.
Within the Siemens IRC (Industrial Controls) portfolio the 3RT1015-1BB44-3MA0 belongs to the S00 frame size, the smallest in the 3RT series, intended for low-power motor loads and auxiliary switching. It competes with other S00 contactors but is distinguished by its 24 V DC coil and 3.3 W power consumption, making it a common choice for 24 V DC control systems in panel building.
Pricing & sourcing
The 3RT1015-1BB44-3MA0 is a current-production Siemens contactor. Confirm availability and pricing via RFQ.