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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT1024-1KB40 |
| Alternative Part Number | 3RT10241KB40 |
| Manufacturer | Siemens |
| Part Description | This is a Siemens Power Contactor, designed to handle a current of 40 A and a voltage of 24 V dc. It features 3 Normally Open (NO) contacts and has an IP20 rating for protection against touch by fingers and objects greater than 12mm. |
| Short Description | The Siemens 3RT1024-1KB40 is a power contactor with an AC-3 rating of 12 A and a power rating of 5.5 kW / 400 V 24 V DC. |
| Country of Origin | Not specified |
| Commodity Code | 85364900 |
| Size of the Contactor | S0 |
| Protection Class IP | IP20 |
| Degree of Pollution | 3 |
| Installation Altitude | Up to 2,000 m above sea level |
| Ambient Temperature | -25 … +60 °C |
| Mechanical Operating Cycles | Typical 10,000,000 |
| Number of NC Contacts for Main Contacts | 0 |
| Number of NO Contacts for Main Contacts | 3 |
| Operating Current at AC-1 at 400 V | 40 A |
| Operating Current at AC-3 at 400 V | 12 A |
| Operating Current at AC-4 at 400 V | 12.5 A |
| Operating Current with 1 Current Path at DC-1 at 24 V | 35 A |
| Operating Current with 1 Current Path at DC-1 at 110 V | 4.5 A |
| Service Power at AC-2 at 400 V | 5.5 kW |
| Service Power at AC-3 at 400 V | 5.5 kW |
| Service Power at AC-4 at 400 V | 5,500 W |
| Design of the Surge Suppressor | With varistor |
| Voltage Type of Control Feed Voltage | DC |
| Operating Range Factor Control Supply Voltage Rated Value of the Magnet Coil for DC | 0.7 … 1.25 |
| Pull-in Power of the Solenoid for DC | 4.2 W |
| Holding Power of the Solenoid for DC | 4.2 W |
| Contact Reliability of the Auxiliary Contacts | 1 faulty switching per 100 million (17 V, 1 mA) |
| Number of NC Contacts for Auxiliary Contacts | 0 |
| Number of NO Contacts for Auxiliary Contacts | 0 |
| Design of the Fuse Link for Short-Circuit Protection of the Auxiliary Switch | Required fuse gL/gG: 10 A |
| Design of the Fuse Link for Short-Circuit Protection of the Main Circuit with Type of Assignment 1 | Required fuse gL/gG: 63 A |
| Design of the Fuse Link for Short-Circuit Protection of the Main Circuit at Type of Coordination 2 | Required fuse gL/gG: 25 A |
The Siemens 3RT1024-1KB40 is a robust and reliable power contactor designed for efficient performance in a variety of industrial applications. With a rated operating current of 40 A at AC-1 and 12 A at AC-3, this device is capable of handling significant power loads. It operates at a voltage of 24 V DC and features 3NO (Normally Open) contacts, making it suitable for a wide range of control and automation tasks.
This power contactor is part of the SIRIUS product line, renowned for its high-quality and durable components. It has a protection class of IP20, ensuring it is safe to use in various environments. The device is designed for screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 50022, offering flexibility in installation.
The 3RT1024-1KB40 also features a varistor for surge suppression, ensuring the longevity and reliability of the device. With a mechanical operating cycle of 10,000,000, this power contactor is built to last, providing consistent performance over a long lifespan.
Whether you're operating heavy machinery, managing HVAC systems, or controlling lighting circuits, the Siemens 3RT1024-1KB40 power contactor is a versatile and dependable choice for your power management needs.
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Frequently Asked Questions
What is the power rating of this Siemens Power Contactor?
The Siemens 3RT1024-1KB40 Power Contactor has a power rating of AC-3 5.5 kW/400 V.
What is the operating current of this Power Contactor?
The operating current at AC-1 at 400 V and at 40 °C ambient temperature is rated at 40 A. At AC-3 at 400 V, the rated value is 12 A.
What is the protection class of this Power Contactor?
The Siemens 3RT1024-1KB40 Power Contactor has a protection class of IP20.
What is the size of this Power Contactor?
The size of the Siemens 3RT1024-1KB40 Power Contactor is S0.
What is the design of the surge suppressor in this Power Contactor?
The Siemens 3RT1024-1KB40 Power Contactor is designed with a varistor for surge suppression.
What is the operating temperature range of this Power Contactor?
The Siemens 3RT1024-1KB40 Power Contactor can operate between -25 and +60 degrees Celsius.
What is the installation altitude for this Power Contactor?
The Siemens 3RT1024-1KB40 Power Contactor can be installed at a height over sea level up to 2,000 meters.
What is the type of the connectable conductor cross-section for main contacts?
For the Siemens 3RT1024-1KB40 Power Contactor, the type of the connectable conductor cross-section for main contacts is solid 2x (1 ... 2.5 mm²), 2x (2.5 ... 6 mm²), max. 2x 10 mm².
What is the mechanical operating cycles as operating time of the contactor?
The Siemens 3RT1024-1KB40 Power Contactor has a typical mechanical operating cycle of 10,000,000.
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