Siemens 3RT6015-1AB02 Compact Economic Contactor 24VAC 7A 3NO
The Siemens 3RT6015-1AB02 is a compact, economic contactor designed for reliable control of electrical circuits in various industrial applications. This 24VAC unit boasts a 7A rating and features three normally open (NO) contacts, making it an efficient and cost-effective solution for motor control, lighting, and auxiliary circuits. Its robust design ensures longevity, while its user-friendly configuration simplifies integration into existing systems.
Product Specifications
| Feature | Specification |
| :---------------- | :---------------------------------- |
| Product Type | Compact Economic Contactor |
| Model Number | 3RT6015-1AB02 |
| Coil Voltage | 24VAC |
| Rated Current | 7A |
| Number of NO Contacts | 3 |
| Auxiliary Contacts | (Not specified in core product, typically added via accessory modules) |
| Mounting Type | DIN rail or screw mounting |
| Protection Class | IP20 |
| Ambient Temperature | -25 to +60 °C |
| Standards | IEC 60947-4-1, IEC 60947-5-1 |
Core Features & Market Positioning
The Siemens 3RT6015-1AB02 distinguishes itself through its compact form factor and economic pricing, ideal for applications where space and budget are primary considerations. Its design prioritizes simplicity and reliability, offering straightforward operation for essential switching tasks. This makes it a compelling choice for original equipment manufacturers (OEMs) and system integrators looking for dependable components without excessive features or cost. The Siemens brand legacy further assures users of quality and performance assurance.
Key Application Scenarios
This contactor is well-suited for controlling small to medium-sized three-phase motors, such as those found in pumps, fans, and conveyor systems. It is also commonly deployed in building automation for controlling HVAC systems, lighting circuits, and auxiliary power distribution. Its 7A rating and three NO contacts make it versatile for general switching duties in diverse industrial environments where robust, yet economical, control is paramount.
Practical System Integration Guidance
Installing the Siemens 3RT6015-1AB02 is facilitated by its standard DIN rail mounting capability, simplifying panel assembly. Wiring involves connecting the power terminals to the load and the coil terminals to the control voltage source (24VAC). For enhanced functionality, auxiliary contact blocks can be snapped onto the front or side for additional control or signaling purposes. Proper grounding and adherence to local electrical codes are essential during installation to ensure safe and reliable operation.
Operation and Risk Mitigation
The 3RT6015-1AB02 operates by energizing its coil, creating a magnetic field that closes the main contacts, thereby completing the power circuit. To mitigate risks, always ensure the coil voltage is correct (24VAC) and that the load current does not exceed the 7A rating. De-energize the control circuit before performing any wiring or maintenance. Overloading or incorrect voltage can lead to premature failure or hazardous conditions.
Scalability & Long-Term Value
While this specific model is designed for economic applications, its integration within the broader Siemens industrial control ecosystem offers potential for future expansion. The Siemens SIRIUS modular system allows for the addition of various accessories, such as overload relays and communication modules, enabling a scalable solution as system requirements evolve. This compatibility ensures long-term value by allowing for upgrades and enhancements without complete system replacement.
Frequently Asked Questions (FAQs)
1. What is the coil voltage for the Siemens 3RT6015-1AB02?
The coil voltage is 24VAC. This is crucial for correct operation.
Ensuring the supply matches this specification prevents damage.
It allows for integration with low-voltage control systems.
2. What is the current rating of the 3RT6015-1AB02 contactor?
This contactor has a rated current of 7A.
It is suitable for loads up to 7 amperes.
Exceeding this rating can cause overheating and failure.
3. How many auxiliary contacts does the Siemens 3RT6015-1AB02 have?
The base unit comes with three normally open (NO) main contacts.
It does not include auxiliary contacts as standard.
Accessory blocks can be added for NC or NO auxiliary functions.
4. Can I use this contactor for DC applications?
No, the 3RT6015-1AB02 is specifically designed for AC control circuits.
Using it with DC voltage will result in malfunction.
Always verify the coil voltage type before wiring.
5. What type of mounting is supported by this contactor?
It supports standard DIN rail mounting.
Screw mounting is also a viable option.
This flexibility aids in diverse panel designs.
6. What is the protection class of the 3RT6015-1AB02?
The protection class is IP20.
This means it is protected against solid objects > 12.5mm.
It is not protected against water ingress.
7. How do I wire the coil of the 3RT6015-1AB02?
Connect one 24VAC wire to A1 and the other to A2 on the contactor.
Ensure correct polarity is not a concern for AC coils.
Always de-energize the circuit before wiring.
8. Is this Siemens contactor suitable for motor starting?
Yes, it is suitable for controlling small to medium motors.
Its 7A rating should be compared to the motor's full load current.
Overload protection should be used in conjunction for motor applications.
9. What are the ambient temperature limits for this contactor?
The operating temperature range is -25 to +60 °C.
Operation outside this range can affect performance and lifespan.
Consider local environmental conditions during selection.
10. Where can I find the manual for the Siemens 3RT6015-1AB02?
The official Siemens Industry Online Support (SIOS) portal is the primary source.
Search for the product number 3RT6015-1AB02 on the SIOS website.
Product manuals provide detailed installation and operation instructions.
