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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT1034-3BB40 |
| Alternative Part Number | 3RT10343BB40 |
| Manufacturer | Siemens |
| Product Type | Power Contactor |
| Size of Contactor | S2 |
| Rated Insulation Voltage | 690 V |
| Degree of Pollution | 3 |
| Surge Voltage Resistance | 6 kV |
| Maximum Voltage for Safe Isolation | 400 V between coil and main contacts according to EN 60947-1 |
| Protection Class IP | IP20 on the front, IP00 of the terminal |
| Shock Resistance | 10g / 5 ms, 5g / 10 ms at DC |
| Mechanical Operating Cycles | 10,000,000 typical |
| Number of Poles | 3 |
| Number of NO Contacts for Main Contacts | 3 |
| Operating Current at AC-3 | 32 A at 400 V |
| Operating Current at AC-1 | 50 A at 400 V |
| Control Supply Voltage | 24 V DC |
| Operating Range Factor | 0.8 … 1.1 for DC magnet coil |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022 |
| Width | 55 mm |
| Height | 112 mm |
| Depth | 130 mm |
| Required Spacing | 6 mm to earthed parts at the side |
| Connection Type | Screw-type terminals for main circuit, Cage Clamp terminals for auxiliary and control circuit |
| Conductor Cross-section | Solid: 2x (0.75 ... 16 mm²), Stranded: 2x (0.75 ... 25 mm²) |
| Operating Power at AC-3 | 15 kW at 400 V |
| Ambient Temperature Range | -25 … +60 °C during operation |
| Installation Altitude | Up to 2,000 m above sea level |
The Siemens 3RT1034-3BB40 is a robust power contactor designed for industrial applications requiring reliable switching of motors and other electrical loads. This contactor is part of the SIRIUS product family, known for its high-quality performance and durability in demanding environments.
With a size S2 frame, the 3RT1034-3BB40 is equipped with three poles and a control voltage of 24 V DC, making it suitable for a wide range of direct current operations. It is capable of handling AC-3 category loads up to 15 kW at 400 V, which is a testament to its capability to manage significant power levels efficiently.
The contactor features spring-type terminals, which provide a secure and maintenance-free electrical connection, ensuring long-term reliability and ease of installation. The device is designed with a protection class of IP20 on the front, offering a degree of protection against solid objects and making it suitable for use in controlled environments.
Engineered for a mechanical service life of up to 10 million operating cycles, the Siemens 3RT1034-3BB40 is built to last, reducing the need for frequent replacements and maintenance. Its compact dimensions allow for space-saving installation, and the ability to mount it onto a 35 mm standard mounting rail according to DIN EN 50022 facilitates easy integration into existing systems.
The contactor's design ensures compatibility with a wide range of conductor cross-sections, both solid and stranded, providing flexibility for various wiring requirements. Additionally, the unit's compliance with international standards reflects its quality and suitability for global industrial applications.
Overall, the Siemens 3RT1034-3BB40 is a reliable and efficient solution for controlling high-power loads in industrial settings, offering both performance and durability.
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Frequently Asked Questions
What are the main characteristics of this contactor?
This contactor is a 3-pole device with a rated control supply voltage of 24 V DC. It's designed for AC-3 applications up to 15 kW at 400 V and has a size S2. The contactor features screw-type terminals for the main circuit and spring-loaded terminals for the auxiliary and control circuit.
Can this contactor be mounted on a DIN rail?
Yes, the contactor is designed for screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 50022. It also supports side-by-side mounting.
What is the insulation voltage rating of this contactor?
The insulation voltage rating of the contactor is 690 V, which is the rated value for ensuring safe operation.
What type of terminals does this contactor have?
The contactor is equipped with screw-type terminals for the main current circuit and spring-loaded terminals for the auxiliary and control current circuit.
What is the mechanical service life of this contactor?
The mechanical service life of the contactor is typically 10 million operating cycles, ensuring long-term reliability in various applications.
What are the dimensions of this contactor?
The dimensions of the contactor are 112 mm in height, 55 mm in width, and 130 mm in depth, making it compact for its capabilities.
What is the operating current rating for AC-3 usage at 400 V?
For AC-3 usage at 400 V, the operating current rating is 32 A.
Is this contactor suitable for use in environments with high ambient temperatures?
The contactor can operate within an ambient temperature range of -25 to +60 degrees Celsius, making it suitable for various industrial environments.
What is the protection class of the contactor's front side?
The front side of the contactor has a protection class of IP20, providing a degree of protection against solid objects.
What is the rated operating frequency for this contactor in AC-3 applications?
The rated operating frequency for the contactor in AC-3 applications is 1,000 operations per hour.
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