Siemens 3RT2015-1BB42 Power Contactor 3P 7A AC-3 24V DC

The Siemens 3RT2015-1BB42 is a SIRIUS 3RT2 power contactor rated 7 A / 3 kW at 400 V in AC-3 duty, designed to switch three-phase motors and electrical loads. The 3-pole S00-size unit operates from a 24 V DC control coil and includes one integrated NC auxiliary contact with screw terminal connections.

Technical specifications:

• MLFB: 3RT2015-1BB42
• Manufacturer: Siemens
• Product line: SIRIUS
• Product type: Power contactor
• Product type designation: 3RT2
• Contactor size: S00
• Main poles: 3
• Rated current AC-3 at 400 V: 7 A
• Rated current AC-1 at 400 V (40°C): 18 A
• Rated power AC-3 at 400 V: 3 kW
• Maximum operating voltage (AC-3 / AC-3e): 690 V
• Insulation voltage (main and auxiliary circuit, pollution degree 3): 690 V
• Surge voltage resistance: 6 kV
• Control supply voltage: 24 V DC
• Operating range: 0.8 - 1.1 x rated coil voltage
• Closing power (magnet coil, DC): 4 W
• Holding power (magnet coil, DC): 4 W
• Closing delay at DC: 30 - 100 ms
• Opening delay at DC: 7 - 13 ms
• Auxiliary contacts: 1 NC (instantaneous)
• Terminal type: Screw terminal
• Operating temperature: -25 to +60°C
• Storage temperature: -55 to +80°C
• Installation altitude: max 2000 m above sea level
• Mechanical service life: 30,000,000 operating cycles
• Net weight: 0.291 kg

Features and benefits:

• S00 compact size for high-density control panel layouts
• Mechanical service life of 30 million operating cycles for long service intervals
• Low total power loss of 0.6 W in hot operating state
• Wide ambient temperature range of -25 to +60°C
• Operating frequency up to 750 switching operations per hour at AC-3
• Accepts added auxiliary switch blocks for expanded contact arrangements

Applications:

• Switching three-phase motors up to 3 kW at 400 V
• Motor control in compact industrial control panels
• PLC-controlled automation circuits using 24 V DC logic
• Inductive and resistive load switching in industrial equipment
• Building services and HVAC motor control

Compliant with EN 60947-1. Part of the Siemens SIRIUS 3RT2 range.

Also known as: Siemens 3RT2015-1BB42, Siemens SIRIUS 3RT2 power contactor 24V DC, Siemens S00 contactor 7A.