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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3TC4817-0AB4 |
| Alternative Part Number | 3TC48170AB4 |
| Manufacturer | Siemens |
| Contactor Size | 4 |
| Number of Poles | 2 |
| Contact Configuration | 2NO/2NC (2 Normally Open, 2 Normally Closed) |
| Rated Operational Current | 75 A |
| Service Power at 750 V DC | 45 kW |
| Control Supply Voltage | 24 V DC |
| Insulation Voltage Rated Value | 800 V |
| Maximum Voltage for Safe Isolation | 300 V |
| Ambient Operating Temperature | -25 … +55 °C |
| Mechanical Service Life | 10,000,000 switching cycles |
| Protection Class IP | IP00 |
| Mounting Type | Screw fixing |
| Dimensions (Width x Height x Depth) | 100 mm x 177.5 mm x 184 mm |
| Connection Type | Screw-type terminals for main current circuit and auxiliary/control current circuit |
| Operating Frequency at DC-1 | Maximum 1,000 1/h |
| Operating Frequency at DC-3 and DC-5 | Maximum 600 1/h |
| Closing Power of Magnet Coil at DC | 19 W |
| Holding Power of Magnet Coil at DC | 19 W |
| Closing Delay at DC | 90 ... 380 ms |
| Opening Delay at DC | 17 ... 28 ms |
| Arcing Time | 20 ... 30 ms |
The Siemens 3TC4817-0AB4 is a robust and reliable contactor designed to meet the demands of industrial applications. This component is engineered for precision and durability, featuring a 2-pole configuration with both normally open (2NO) and normally closed (2NC) contacts, making it versatile for various circuit control needs. With a rated operational current of 75 A and the capability to handle service power up to 45 kW at 750 V dc, it is suitable for a wide range of DC switching operations.
Constructed to operate with a control supply voltage of 24 V dc, this contactor ensures consistent performance in a variety of environments, with an ambient temperature operating range from -25 to +55 degrees Celsius. The contactor's size 4 form factor is compact yet powerful, allowing for efficient use of space within electrical assemblies.
The Siemens 3TC4817-0AB4 is also designed with user safety in mind, featuring an IP00 protection class and requiring additional measures for safe operation. Its mechanical service life is impressive, with typical switching cycles reaching up to 10 million, indicating a long-lasting and cost-effective solution for industrial switching needs.
This contactor is a practical choice for those seeking a high-quality, high-performance component for their DC power switching applications. Its robust construction and reliable operation make it a valuable asset in any industrial control system.
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Frequently Asked Questions
What is the size of this contactor?
The contactor is a size 4, which is a designation for its physical dimensions and electrical capacities within the Siemens contactor product range.
How many poles does this contactor have?
This contactor has 2 poles, suitable for various industrial applications requiring a double-pole connection.
Can you specify the type of auxiliary contacts this contactor includes?
The contactor comes with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, which can be used for signalling and interlocking purposes.
What is the rated operational current of this contactor?
The rated operational current for this contactor is 75 A, making it suitable for handling moderate to high current applications.
What is the control supply voltage for this contactor?
The control supply voltage required for this contactor is 24 V DC, which is the standard for activating the coil in the contactor.
What is the maximum service power rating at 750 V for this contactor?
At 750 V, the maximum service power rating for the 3TC4817-0AB4 contactor is 45 kW, which is indicative of the contactor's capacity to handle high power applications.
What are the ambient temperature operating limits for this contactor?
The contactor can operate within an ambient temperature range of -25 to +55 degrees Celsius, ensuring reliable performance in a variety of environmental conditions.
What type of mounting does this contactor support?
This contactor supports screw fixing for secure mounting, which is a common and reliable method for installing industrial contactors.
What is the insulation voltage rated value for this contactor?
The insulation voltage rated value for this contactor is 800 V, which provides a measure of the dielectric strength of the insulating material used in the contactor.
What is the mechanical service life of this contactor?
The mechanical service life of the contactor is typically 10 million switching cycles, indicating its durability and longevity in operational use.
