Siemens 3RT6017-1AF01 Standard AC Control Contactor 110VAC 12A 3NO

The Siemens 3RT6017-1AF01 standard AC control contactor is a robust and reliable component designed for demanding industrial applications. This 110VAC, 12A contactor features three normally open (3NO) poles, offering high switching capacity and operational longevity. Its core advantages lie in its compact design, ease of integration, and Siemens' renowned quality and safety standards, making it a preferred choice for control panel builders and maintenance engineers. Key technical parameters include a control circuit voltage of 110VAC, a maximum AC-1 operational current of 12A, and a power loss per pole of approximately 1.3W, ensuring efficient operation.

Product Specifications

| Feature               | Specification                               |

| :-------------------- | :------------------------------------------ |

| Product Type          | Standard AC Control Contactor             |

| Siemens Order Number  | 3RT6017-1AF01                               |

| Control Circuit Voltage | 110 VAC                                     |

| Number of Poles       | 3                                           |

| Pole Configuration    | 3 Normally Open (3NO)                       |

| Rated Operational Current (AC-1) | 12 A                                        |

| Rated Operational Current (AC-3, 400V) | 7 A                                         |

| Auxiliary Contacts    | None standard (requires accessory modules)  |

| Coil Consumption      | Approx. 5.5 VA (inrush), 1.3 VA (holding)   |

| Power Loss            | ~1.3 W per pole                             |

| Terminal Type         | Screw Terminals                             |

| Mounting Type         | Rail Mount (35mm DIN rail)                  |

| Ambient Temperature   | -25 to +60 °C                               |

| Mechanical Lifespan   | 10 million cycles                           |

| Electrical Lifespan   | 1 million cycles (AC-1, 10A, 400V)          |

Core Features & Market Positioning

The Siemens 3RT6017-1AF01 stands out in the competitive landscape due to its inherent reliability and Siemens' commitment to industrial automation excellence. Unlike some lower-tier alternatives, this contactor boasts a high mechanical and electrical endurance, translating to reduced downtime and lower total cost of ownership for end-users. Its compact form factor is particularly advantageous in space-constrained control cabinets, facilitating denser panel designs. Furthermore, Siemens' extensive global support network ensures that users have access to technical assistance and readily available spare parts, a critical consideration for industrial operations. The 3RT6017-1AF01 is positioned as a dependable workhorse for general-purpose motor control and switching applications where consistent performance is paramount.

Key Application Scenarios

This Siemens 3RT6017-1AF01 contactor is ideally suited for a wide array of industrial and commercial applications. It commonly finds its place in the control of small to medium-sized three-phase motors used in HVAC systems, pumps, fans, and conveyors within manufacturing plants and building automation systems. Its 12A rating makes it a versatile component for switching resistive loads and general loads (AC-1) as well as inductive loads like motors (AC-3). For electricians and system integrators, the 3RT6017-1AF01 offers a straightforward solution for motor starters, contactor circuits for lighting control, and general power switching tasks. Its 110VAC coil voltage is prevalent in many control systems, simplifying integration without the need for complex voltage conversion.

Practical System Integration Guidance

Integrating the Siemens 3RT6017-1AF01 into an industrial control system is a streamlined process. The unit is designed for direct mounting onto a standard 35mm DIN rail, ensuring quick and secure installation within control panels. Wiring is accomplished via robust screw terminals, which accept a range of wire gauges, typically up to 2.5mm² solid or 1.5mm² stranded conductors. When wiring the power circuit, ensure all incoming and outgoing lines are de-energized and properly insulated. The control coil should be connected to the 110VAC supply, observing correct polarity if applicable, though AC coils are generally less sensitive than DC ones. For applications requiring additional signaling or control functions, auxiliary contact modules can be easily snapped onto the front of the 3RT6017-1AF01, enhancing its versatility without increasing the panel footprint significantly.

Operation and Risk Mitigation

Proper operation of the Siemens 3RT6017-1AF01 involves ensuring the control voltage is within the specified 110VAC range and that the load current does not exceed the contactor's rating for the specific application category (e.g., AC-3 for motors). Overloading the contactor can lead to premature contact welding or failure, significantly reducing its lifespan and potentially causing system malfunctions. It is crucial to implement appropriate overcurrent protection, such as fuses or circuit breakers, upstream of the contactor to safeguard against short circuits and severe overloads. Regular visual inspections for signs of wear, such as discoloration or pitting on the contacts, and periodic testing of the coil and contact resistance can help in proactive maintenance and prevent unexpected failures.

Scalability & Long-Term Value

The Siemens 3RT6017-1AF01, as part of the broader Siemens SIRIUS modular system, offers excellent scalability and long-term value. While this specific model is a standalone component, its compatibility with other SIRIUS devices, such as overload relays, soft starters, and various communication modules, allows for the creation of sophisticated and expandable control solutions. For instance, integrating it into a Siemens S7 PLC system or utilizing industrial communication protocols can pave the way for advanced diagnostics, remote monitoring, and participation in IIoT architectures. This inherent interoperability ensures that investments in this contactor can be part of a larger, future-proof automation strategy, adapting to evolving industrial demands and digital transformation initiatives.

FAQs

1. What is the Siemens 3RT6017-1AF01 rated for in terms of current?

The Siemens 3RT6017-1AF01 is rated for 12A under AC-1 (utilization category for resistive loads).

For motor control (AC-3 category), its rating is typically 7A at 400V, which is a critical distinction for motor applications.

Always consult the product datasheet for specific application and voltage derating factors.

2. Can I use the 3RT6017-1AF01 to switch DC loads?

This contactor is specifically designed for AC control circuits and AC loads; it is not intended for DC switching.

Using it for DC loads can lead to arc instability and premature contact failure due to the nature of DC current.

For DC applications, specific DC contactors with appropriate arc suppression are required.

3. What type of protection is needed for the 3RT6017-1AF01?

The contactor requires upstream overcurrent protection, such as fuses or circuit breakers, sized appropriately for the load.

This protects both the contactor and the downstream circuit from short circuits and overloads.

An overload relay can be paired with the contactor for motor protection against sustained overcurrent.

4. What are the dimensions of the Siemens 3RT6017-1AF01?

The Siemens 3RT6017-1AF01 has a compact footprint suitable for standard control panels.

Typical dimensions are around 57.5 mm (height) x 45 mm (width) x 77.5 mm (depth), though exact measurements may vary slightly.

Its narrow width allows for high pole density in control cabinets.

5. How do I wire the coil of the 3RT6017-1AF01?

The coil operates on 110VAC, and the two coil terminals are clearly marked on the contactor.

Connect the 110VAC supply to these terminals, ensuring the voltage source matches the coil rating precisely.

Incorrect voltage can damage the coil; always verify the supply before energizing.

6. Can I add auxiliary contacts to the 3RT6017-1AF01?

Yes, auxiliary contact modules can be easily attached to the front of the 3RT6017-1AF01.

These modules provide additional N.O. (normally open) or N.C. (normally closed) contacts for signaling or interlock circuits.

Ensure the module is compatible with the 3RT60 contactor series.

7. What is the expected lifespan of this contactor?

The 3RT6017-1AF01 has a mechanical lifespan of up to 10 million cycles.

Its electrical lifespan varies by load type, with up to 1 million cycles for AC-1 loads at its rated current.

Proper application and protection are key to achieving maximum lifespan.

8. Is the 3RT6017-1AF01 suitable for hazardous environments?

This is a standard industrial contactor and is not inherently rated for explosive or hazardous area classifications.

For such environments, specialized explosion-proof or intrinsically safe components are required.

Always verify environmental ratings for specific site requirements.

9. What is the significance of 3NO (3 Normally Open) contacts?

3NO means the contactor has three sets of contacts that are open in the de-energized state and close when the coil is energized.

This configuration is ideal for controlling three-phase loads or for applications requiring multiple circuits to be closed simultaneously.

It's commonly used for starting motors or switching power to three conductors.

10. Where can I find technical documentation for the 3RT6017-1AF01?

Official technical documentation, including datasheets and manuals, can be found on the Siemens Industry Online Support (SIOS) portal.

Search using the product order number "3RT6017-1AF01" on the Siemens website.

These resources provide detailed specifications, wiring diagrams, and application notes.