steve
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Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
3 months ago
3TH4394-0BB4
Siemens 3TH4394-0BB4 available at EU Automation. Get in touch today for a quick price.
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 3TH4394-0BB4 is a meticulously engineered contactor relay that serves as a critical component in a wide range of industrial control systems. Designed to meet the stringent requirements of EN 50011, this relay features a configuration of 5 normally open (NO) and 5 normally closed (NC) contacts, along with a single overlapping contact, ensuring versatile integration into various circuit designs.
Constructed with a size 0 form factor, the 3TH4394-0BB4 is compact yet robust, making it suitable for space-conscious applications without compromising on performance. The relay operates with a DC control supply voltage rated at 24V, providing reliable switching and control for DC-operated circuits.
The device boasts an ambient operating temperature range of -25 to +55 degrees Celsius, allowing it to function effectively in diverse environmental conditions. With a protection class of IP20 on the front, it offers a degree of protection against solid objects, enhancing its durability in industrial settings.
For ease of installation, the 3TH4394-0BB4 features screw-type terminals for secure electrical connections, as well as screw and snap-on mounting options for a 35mm standard mounting rail in accordance with DIN EN 50022. Its dimensions, with a height of 78mm, width of 55mm, and depth of 135mm, make it a practical choice for integration into control panels and equipment.
The relay's auxiliary circuit is capable of handling operating currents of 10A at 230V and 6A at 400V in AC-15 applications, demonstrating its suitability for controlling a variety of loads. The 3TH4394-0BB4 is also designed with safety in mind, featuring finger-safe protection against electrical shock.
This Siemens contactor relay is a reliable and efficient solution for those seeking a high-quality component for their control systems, offering both functionality and flexibility in a wide array of industrial applications.
Constructed with a size 0 form factor, the 3TH4394-0BB4 is compact yet robust, making it suitable for space-conscious applications without compromising on performance. The relay operates with a DC control supply voltage rated at 24V, providing reliable switching and control for DC-operated circuits.
The device boasts an ambient operating temperature range of -25 to +55 degrees Celsius, allowing it to function effectively in diverse environmental conditions. With a protection class of IP20 on the front, it offers a degree of protection against solid objects, enhancing its durability in industrial settings.
For ease of installation, the 3TH4394-0BB4 features screw-type terminals for secure electrical connections, as well as screw and snap-on mounting options for a 35mm standard mounting rail in accordance with DIN EN 50022. Its dimensions, with a height of 78mm, width of 55mm, and depth of 135mm, make it a practical choice for integration into control panels and equipment.
The relay's auxiliary circuit is capable of handling operating currents of 10A at 230V and 6A at 400V in AC-15 applications, demonstrating its suitability for controlling a variety of loads. The 3TH4394-0BB4 is also designed with safety in mind, featuring finger-safe protection against electrical shock.
This Siemens contactor relay is a reliable and efficient solution for those seeking a high-quality component for their control systems, offering both functionality and flexibility in a wide array of industrial applications.
| Specification | Description |
|---|---|
| Part Number | 3TH4394-0BB4 |
| Alternative Part Number | 3TH43940BB4 |
| Manufacturer | Siemens |
| Product Type | Contactor Relay |
| Size of Contactor | 0 |
| Number of Contacts | 5 NO (Normally Open) + 5 NC (Normally Closed) |
| Overlap | 1 Overlap (O'LAP) |
| Terminal Type | Screw Terminal |
| Operating Voltage | DC 24V |
| Ambient Operating Temperature | -25 … +55 °C |
| Protection Class IP on the Front | IP20 |
| Reference Code | K (according to DIN EN 61346-2) |
| Control Circuit Voltage Type | DC |
| Auxiliary Circuit Operating Current | 10 A at 230 V, 6 A at 400 V (AC-15 Rated Value) |
| Identification Number and Letter | 55 E, 1U |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022 |
| Dimensions (Height x Width x Depth) | 78 mm x 55 mm x 135 mm |
| Electrical Connection Type | Screw-type terminals for auxiliary and control circuit |
| B10 Value with High Demand Rate | 1,000,000 (With 0.3 x Ie according to SN 31920) |
| T1 Value for Proof Test Interval | 20 years (according to IEC 61508) |
| Protection Against Electrical Shock | Finger-safe |
What type of device is this Siemens contactor relay?
The Siemens contactor relay is an auxiliary contactor designed for various control applications. It features 5 normally open (NO) and 5 normally closed (NC) contacts, with a screw terminal connection and operates on a 24 V DC control supply voltage.
Can this contactor relay be used in extreme temperatures?
Yes, the contactor relay is designed to operate within an ambient temperature range of -25 to +55 degrees Celsius, making it suitable for use in a variety of environmental conditions.
What is the protection class of the front side of the contactor relay?
The front side of the contactor relay has a protection class of IP20, indicating a basic level of protection against solid objects.
What are the dimensions of this contactor relay?
The contactor relay has a height of 78 mm, a width of 55 mm, and a depth of 135 mm.
How is the contactor relay mounted?
The contactor relay can be mounted using screws and can also be snapped onto a 35 mm standard mounting rail according to DIN EN 50022.
What is the rated operational current for this contactor relay at AC-15?
At AC-15, the contactor relay has a rated operational current of 10 A at 230 V and 6 A at 400 V.
What type of electrical connection does the contactor relay have for its auxiliary and control circuit?
The contactor relay utilises screw-type terminals for its auxiliary and control circuit electrical connections.
What is the B10 value for this contactor relay?
The B10 value for the contactor relay is 1,000,000 with a high demand rate according to SN 31920, assuming 0.3 times the rated operational current (Ie).
What is the T1 value for the proof test interval or service life of the contactor relay?
The T1 value for the proof test interval or service life of the contactor relay is 20 years, in accordance with IEC 61508.
Is the contactor relay finger-safe?
Yes, the design of the contactor relay provides protection against electrical shock, making it finger-safe.
- Control and operation of electric motors
- Switching of lighting circuits
- Automation in conveyor systems
- Control panels for manufacturing equipment
- Interface for PLCs to activate various machinery functions
- HVAC systems control
- Packaging machinery operation
- Elevator and escalator controls
- Pump and compressor control circuits
- Integration into safety and interlock circuits
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
5 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
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Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
5 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
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Lessle Smith
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Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
6 months ago
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