Siemens Sirius 3RT2015-1JB41 Contactor, 3 kW / 400 V AC, 17–30 V DC Electronic Coil, 1NO, Size S00

Siemens Sirius 3RT2015-1JB41 Contactor, 3 kW / 400 V AC, 17–30 V DC Electronic Coil, 1NO, Size S00

Product Description: The Siemens Sirius 3RT2015-1JB41 is a compact, high-performance 3-pole electromagnetic power contactor designed for switching three-phase electric motors and handling other demanding industrial power automation loads. Belonging to the space-saving size S00 configuration, this contactor features an advanced, wide-range electronic DC control coil (operating smoothly between 17V and 30V DC) with an integrated diode surge suppressor to protect surrounding control circuits from voltage spikes. Highly resistant to extreme vibration and built for exceptional electrical and mechanical endurance, this contactor guarantees long-term operational reliability for industrial conveyor lines, pumping stations, ventilation systems, and processing equipment. Reliable screw terminal connections provide robust and secure wiring configurations.

Specifications:

• Manufacturer: Siemens

• Series: SIRIUS 3RT2

• Model / MPN: 3RT2015-1JB41

• Frame Size: S00

• Number of Power Poles: 3 (3 NO main contacts)

• Rated Operational Current AC-3 (up to 400 V): 7 A

• Conventional Thermal Current AC-1 (Ith): 18 A

• Three-Phase Motor Power rating at 400 V (AC-3): 3 kW

• Control Coil Voltage: 17...30 V DC (Direct Current)

• Coil Special Feature: Electronic wide-range operating window, integrated surge suppressing diode

• Built-in Auxiliary Contacts: 1 NO (Normally Open)

• Mounting Type: 35 mm DIN rail or standard screw mounting on a backplate

• Connection Type: Screw terminals

• Maximum Insulation Voltage (Ui): 690 V

• Degree of Protection: IP20

• Ambient Operating Temperature: -25 to +60 °C

• Country of Origin: Germany

Application: This power contactor is widely utilized in industrial automation environments for the direct-on-line (DOL) starting and stopping of low-power squirrel-cage induction motors, controlling industrial heating networks (resistive loads), managing overhead lighting arrays, and in automatic transfer switching (ATS) automation boxes. Thanks to its wide-spectrum 17–30V DC coil architecture, it interfaces perfectly with power supply networks prone to voltage fluctuations or couples directly to the digital transistor outputs of Programmable Logic Controllers (PLCs) without needing external separation relays.