The Siemens 3RT2015-1BB41 is a SIRIUS 3RT2 three-pole power contactor in size S00, rated 7 A at AC-3/400 V (3 kW), controlled by a 24 V DC coil. It handles AC-3e and AC-3 switching categories across operating voltages up to 690 V and includes one built-in NO auxiliary contact with screw terminals throughout.

Technical specifications:

MLFB: 3RT2015-1BB41
Manufacturer: Siemens
Product line: SIRIUS
Product type designation: 3RT2
Contactor size: S00
Number of main poles: 3
Rated current AC-3 (400 V): 7 A
Rated current AC-1 (400 V / 40C): 18 A
Operating power AC-3: 1.5 kW at 230 V / 3 kW at 400 V / 4 kW at 690 V
Insulation voltage (pollution degree 3): 690 V
Surge voltage resistance: 6 kV (main and auxiliary circuit)
Control supply voltage: 24 V DC
Coil operating range: 0.8-1.1 x Us
Coil closing and holding power: 4 W
Auxiliary contacts: 1 NO instantaneous
Auxiliary contact rating AC-15 (230 V): 10 A
Terminal type: screw terminal
Ambient operating temperature: -25 to +60C
Maximum installation altitude: 2,000 m
Mechanical service life: 30,000,000 operating cycles
Net weight: 291 g

Features and benefits:

30 million cycle mechanical service life supports high-frequency switching applications
6 kV surge voltage withstand on both main and auxiliary circuits protects against line transients
Wide coil operating range (0.8-1.1 x Us) accommodates DC supply voltage variations
Integrated 1 NO auxiliary contact eliminates the need for a separate add-on block
Covers AC-3, AC-3e, AC-1, and AC-4 switching categories from a single device

Applications: