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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT2026-1AP04 |
| Alternative Part Number | 3rt20261ap04 |
| Manufacturer | Siemens |
| Product Type | Power Contactor |
| Poles | 3 Poles |
| Contacts Configuration | 3NO (3 Normally Open) |
| Rated Operational Current | 25 A |
| Motor Control Power | 11 kW @ 400 V |
| Rated Operational Voltage | 690V ac |
| Size | S0 |
| Control Supply Voltage | AC 230V 50Hz |
| Insulation Voltage | Rated value 690 V |
| Degree of Pollution | 3 |
| Protection Class | IP20 |
| Ambient Temperature Range | -25 … +60 °C |
| Installation Altitude | Up to 2,000 meters above sea level |
| Shock Resistance | At AC: 8.3g / 5 ms, 5.3g / 10 ms; At sine pulse: 13.5g / 5 ms, 8.3g / 10 ms |
| Impulse Voltage Resistance | Rated value 6 kV |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022 |
| Auxiliary Contacts | No |
| Communication Module | No |
| Protection Against Electric Shock | Finger-safe |
| Commodity Code | 853649 |
The Siemens 3RT2026-1AP04 is a robust power contactor designed to handle a variety of applications within industrial environments. This contactor is part of the SIRIUS family and is engineered to facilitate the switching of motors, ensuring efficient operation and control. It features three poles and is equipped with 3NO (Normally Open) contacts, making it suitable for a wide range of switching tasks.
With a rated operational current of 25 A and the capability to manage motor power of 11 kW at 400 V in AC-3 usage categories, this contactor is a reliable choice for managing substantial loads. The device operates with a control supply voltage of AC 230V at 50Hz and can handle an insulation voltage of up to 690V, providing versatility in various working conditions.
The contactor's compact size, with dimensions of 45 mm in width, 85 mm in height, and 141 mm in depth, allows for efficient use of space within control cabinets. It also supports side-by-side mounting, which is beneficial for installations where space is at a premium. The screw-type terminals offer a secure and durable connection for both the main and auxiliary circuits.
Designed with a focus on durability, the Siemens 3RT2026-1AP04 boasts a mechanical service life of up to 10 million switching cycles, ensuring long-term reliability and reduced maintenance requirements. Its construction adheres to a protection class of IP20, providing a degree of protection against solid objects and ensuring the safety of the internal components.
This power contactor is suitable for a range of industrial applications, including but not limited to, motor control centres, manufacturing automation, and HVAC systems. Its robust design and reliable performance make it a valuable component for professionals seeking a high-quality solution for their power switching needs.
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Frequently Asked Questions
What are the main characteristics of this power contactor?
This Siemens power contactor is a 3-pole device with 3NO contacts, rated for 25 A and capable of controlling motors up to 11 kW at 400 V in AC-3 usage. It has an insulation voltage of 690V ac and is designed for use in size S0 applications. The contactor is equipped with screw terminals and is suitable for both switching and controlling motors.
Can this contactor be used with single-phase motors?
Yes, the contactor can be used with single-phase motors. It has a rated performance for single-phase AC motors at 110/120 V and 230 V, with respective horsepower ratings provided in the technical specifications.
What is the rated insulation voltage of the contactor?
The rated insulation voltage for this contactor is 690V ac, which is the maximum voltage for which the contactor is designed to be operational.
Is the contactor suitable for side-by-side mounting?
Yes, the contactor is designed for side-by-side mounting without the need for additional spacing, allowing for efficient use of space inside control cabinets.
What type of terminals does the contactor have?
The contactor is equipped with screw-type terminals for both the main current circuit and the auxiliary and control current circuit, facilitating secure and reliable connections.
What is the operating frequency of the contactor in AC-3 service?
In AC-3 service, which is typically for starting and stopping squirrel cage motors, the operating frequency of the contactor is a maximum of 750 operations per hour.
What are the dimensions of the contactor?
The contactor has a height of 85 mm, a width of 45 mm, and a depth of 141 mm, making it compact and suitable for standard mounting rails.
What is the control supply voltage range for this contactor?
The control supply voltage for this contactor at 50 Hz AC is rated at 230V, with an operating range factor of 0.8 to 1.1 times the rated value of the magnet coil.
How does the contactor ensure safety during operation?
The contactor is designed with finger-safe terminals and meets the requirements for protection against electrical shock, ensuring a high level of safety during installation and maintenance.
What is the ambient temperature range for operating this contactor?
The contactor can operate within an ambient temperature range of -25°C to +60°C, making it suitable for a variety of industrial environments.
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