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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3RT1034-1B |
| Alternative Part Number | 3RT10341B |
| Manufacturer | Siemens |
| Category | General Automation |
| Size | S2 |
| Number of Poles | 3 for main current circuit |
| Number of NO Contacts | 3 for main contacts |
| Number of NC Contacts | 2 for auxiliary contacts |
| Operating Voltage | AC-3 15 kW/400 V, DC 24 V |
| Control Supply Voltage (DC) | Rated value 24 V |
| Operating Current at AC-1 | 50 A at 400 V/40 °C, 45 A at 400 V/60 °C |
| Operating Current at AC-3 | 32 A at 400 V |
| Operating Current at DC-1 | 45 A at 24 V |
| Operating Current at DC-3/DC-5 | 35 A at 24 V |
| Service Power at AC-3 | 15 kW at 400 V |
| Insulation Voltage | Rated value 690 V |
| Surge Voltage Resistance | Rated value 6 kV |
| Mechanical Service Life | 10,000,000 cycles for contactor, 5,000,000 cycles with electronics-compatible auxiliary block |
| Thermal Short-time Current | Restricted to 10 s, 320 A |
| Protection Class IP | IP20 on the front |
| Ambient Temperature Operating | -25 … +60 °C |
| Ambient Temperature Storage | -55 … +80 °C |
| Installation Altitude | Maximum 2,000 m above sea level |
| Connection Type | Screw-type terminals for main and auxiliary/control current circuit |
| Width | 55 mm |
| Height | 112 mm |
| Depth | 130 mm |
| Required Spacing | 6 mm to grounded parts at the side |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail |
The Siemens 3RT1034-1B 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 range and is known for its durability and high performance. With a size S2 frame, it offers a compact footprint for easy integration into various control systems.
Engineered to handle AC-3 loads up to 15 kW at 400 V, the 3RT1034-1B features a 3-pole configuration with 2 normally open (NO) and 2 normally closed (NC) auxiliary contacts, providing flexibility for complex control circuits. The contactor operates with a DC control supply voltage of 24 V, making it suitable for a wide range of direct current applications.
The device boasts an impressive mechanical operating life, capable of up to 10 million operating cycles, ensuring long-term reliability and reduced maintenance requirements. It also has a rated insulation voltage of 690 V and can withstand surge voltages up to 6 kV, offering additional protection against voltage spikes.
Installation is straightforward, with options for screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 50022. The contactor's dimensions are 55 mm in width, 112 mm in height, and 179 mm in depth, with a requirement to maintain a 6 mm distance to earthed parts sideways.
For electrical connections, the 3RT1034-1B utilises screw-type terminals, accommodating a range of conductor sizes for both the main and auxiliary circuits. This ensures secure and reliable connections for consistent operation.
The Siemens 3RT1034-1B is a testament to quality engineering, offering a combination of performance, versatility, and ease of use, making it a preferred choice for professionals seeking a dependable solution for controlling electrical loads in industrial environments.
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Frequently Asked Questions
What type of contactor is this?
This is a power contactor designed for switching an electrical power circuit, specifically a SIRIUS 3-pole contactor with 2 normally open (NO) and 2 normally closed (NC) contacts, suitable for AC-3 applications up to 15 kW/400 V.
Can this contactor be used with DC control circuits?
Yes, this contactor is designed to be used with DC control circuits and has a rated control supply voltage of 24 V DC.
What is the rated operating current for this contactor?
The rated operating current for this contactor at AC-3/400 V is 32 A.
What is the size of this contactor?
The contactor is of size S2, which is a designation used by Siemens to indicate its physical dimensions and the capacity of the contactor.
What is the insulation voltage rating of this contactor?
The insulation voltage rating of this contactor is 690 V.
What is the mechanical service life of this contactor?
The mechanical service life of this contactor is typically 10 million operating cycles.
What type of mounting can be used for this contactor?
This contactor can be mounted using screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 50022.
What are the dimensions of this contactor?
The dimensions of the contactor are 55 mm in width, 112 mm in height, and 130 mm in depth.
What is the ambient temperature range for operating this contactor?
The ambient temperature range for operating this contactor is from -25 °C to +60 °C.
How is the electrical connection made for the main current circuit?
The electrical connection for the main current circuit is made via screw-type terminals.
