The Siemens 3RT2015-1JB42 is a compact SIRIUS power contactor designed for reliable switching and control of three-phase motors in industrial automation, motor control panels, and electrical control systems. It is rated for AC-3e/AC-3 applications at 7 A and is suitable for motor loads up to 3 kW at 400 V. The contactor features a 24 V DC control coil with an integrated diode, 3 main poles, 1 NC auxiliary contact, screw terminal connections, and a compact S00 size. Siemens specifies this model as suitable for PLC outputs.
The Siemens SIRIUS 3RT2015-1JB42 is suitable for motor starters, PLC-controlled motor applications, industrial control panels, pumps, compressors, conveyors, machine tools, factory automation, and OEM control systems. Its compact S00 construction helps optimize panel space while providing dependable switching performance.
The 24 V DC coil with integrated diode is particularly suitable for control systems using DC outputs, including PLC applications. The 1 NC auxiliary contact can be used for control logic, electrical interlocking, signalling, and status feedback.
Brand: Siemens
Product Family: SIRIUS 3RT
Model: 3RT2015-1JB42
Product Type: Power Contactor
Utilization Category: AC-3e/AC-3
Rated Operational Current: 7 A
Motor Rating: 3 kW at 400 V
Main Poles: 3-Pole
Control Coil: 24 V DC
Coil Range: 0.7–1.25 × Us
Integrated Diode: Yes
Auxiliary Contact: 1 NC
Terminal Connection: Screw Terminals
Contactor Size: S00
PLC Output Compatibility: Suitable
Application: Three-phase motor switching and control
The Siemens 3RT2015-1JB42 is suitable for:
Three-phase motor control
PLC-controlled motor applications
Motor starter panels
Industrial automation systems
Pump control systems
Compressor systems
Conveyor systems
Machine tools
Factory electrical panels
OEM control panels
Industrial switching applications
DC control circuit applications
Reliable 7 A AC-3e/AC-3 motor switching
Suitable for motors up to 3 kW at 400 V
24 V DC control coil for DC control systems
Integrated diode for suitable electronic control applications
1 NC auxiliary contact for control and signalling
Secure screw-terminal connections
Compact S00 construction
Suitable for PLC outputs
Easy integration into industrial automation systems
Reliable Siemens SIRIUS technology
The Siemens SIRIUS 3RT2015-1JB42 is designed for applications where reliable motor switching needs to be combined with a 24 V DC control circuit. Its 7 A AC-3 rating, 3 kW motor capacity at 400 V, 24 V DC coil with integrated diode, 3-pole configuration, 1 NC auxiliary contact, screw terminals, and S00 compact design make it suitable for industrial motor-control and automation applications.
Its suitability for PLC outputs makes it useful in automated motor-control systems where a PLC controls the contactor through a 24 V DC output. The NC auxiliary contact can provide additional feedback or interlocking functionality within the control circuit.
At SB Smart, Faridabad, we supply genuine Siemens SIRIUS power contactors, thermal overload relays, motor protection relays, motor protection circuit breakers, soft starters, MCCBs, MCBs, and industrial automation products at competitive prices. We provide GST invoices, technical assistance, bulk-order support, secure packaging, and delivery across Faridabad, Delhi NCR, and major cities throughout India.
Whether you are sourcing a Siemens contactor for a motor starter, PLC automation project, electrical control panel, machine-control application, replacement requirement, or bulk procurement, SB Smart provides product assistance and nationwide supply support.
Q1. What is Siemens 3RT2015-1JB42?
It is a Siemens SIRIUS power contactor designed for switching and controlling three-phase motors in industrial and automation applications.
Q2. What is the rated current?
The contactor is rated at 7 A for AC-3e/AC-3 applications.
Q3. What motor power can it handle?
It is suitable for motor applications up to 3 kW at 400 V.
Q4. What is the control coil voltage?
It uses a 24 V DC control coil with an integrated diode.
Q5. Does it have an integrated diode?
Yes. The 3RT2015-1JB42 has an integrated diode in its 24 V DC coil circuit.
Q6. Does it have an auxiliary contact?
Yes. It has 1 NC auxiliary contact.
Q7. Is it suitable for PLC outputs?
Yes. Siemens specifically identifies this model as suitable for PLC outputs.
Q8. What type of terminals does it use?
It uses screw terminal connections.
Q9. What is the contactor size?
It is a compact S00-size Siemens SIRIUS contactor.
Q10. Can it be used in motor starter applications?
Yes. It can be used for three-phase motor switching when paired with suitably rated motor protection equipment.
Q11. Where can I buy Siemens 3RT2015-1JB42 in India?
SB Smart, Faridabad supplies Siemens SIRIUS contactors and industrial electrical and automation products with GST billing, technical assistance, bulk-order support, secure packaging, and delivery across India.
| Parameter | Specification |
|---|---|
| Product Series | Siemens SIRIUS 3RT2 |
| Model Number | 3RT2015-1JB42 |
| Product Type | Power Contactor |
| Contactor Configuration | 3 Pole |
| Rated Current (AC-3) | ~7 A |
| Motor Rating | ~3 kW @ 400 V AC |
| Coil Type | 24 V DC Control Coil |
| Auxiliary Contact | 1 NC |
| Contact Feedback | Mirror Contact Elements |
| Coil Protection | Integrated diode |
| Terminal Type | Screw Terminals |
| Frame Size | S00 |
| Application | Motor Control & Power Switching |
| Brand | Siemens |
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