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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3TH4355-0AB0 |
| Alternative Part Number | 3TH43550AB0 |
| Manufacturer | Siemens |
| Product Type | Contactor Relay |
| Size of Contactor | 0 |
| Number of Contacts | 5 Normally Open (NO) + 5 Normally Closed (NC) |
| Operating Voltage | AC 50Hz 24V / AC 60Hz 29V |
| Ambient Operating Temperature | -25°C to +55°C |
| Protection Class IP on the Front | IP20 |
| Reference Code | K (according to DIN 40719 extended according to IEC 204-2 / IEC 750, DIN EN 61346-2) |
| Control Supply Voltage Frequency | 50 Hz / 60 Hz |
| Operating Current at AC-15 | 10 A at 230 V / 6 A at 400 V |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022 |
| Dimensions (Width x Height x Depth) | 55 mm x 78 mm x 102 mm |
| Connection Type | Screw-type terminals |
| Protection Against Electrical Shock | Finger-safe |
| B10 Value | 1,000,000 (with high demand rate according to SN 31920, with 0.3 x Ie) |
| T1 Value | 20 years (for proof test interval or service life according to IEC 61508) |
The Siemens 3TH4355-0AB0 is a meticulously engineered contactor relay that serves as a critical component in a wide array of industrial control systems. Designed to meet the stringent standards of EN 50011, this relay features a configuration of 5 normally open (NO) and 5 normally closed (NC) contacts, providing the flexibility needed for complex circuit designs.
Constructed with robust screw terminals, the 3TH4355-0AB0 ensures a secure and reliable connection, facilitating straightforward installation and maintenance. The relay operates effectively with an AC control supply voltage, accepting 24 V AC at a 50 Hz frequency or 29 V AC at a 60 Hz frequency, catering to a diverse range of power supply requirements.
The compact size of the contactor, with dimensions of 55 mm in width, 78 mm in height, and 102 mm in depth, allows for efficient use of space within control cabinets. It can be easily mounted onto a 35 mm standard mounting rail according to DIN EN 50022, making it a versatile choice for various industrial settings.
With an operational current rating of 10 A at 230 V and 6 A at 400 V for AC-15 applications, the 3TH4355-0AB0 is capable of handling significant electrical loads, ensuring reliable performance in demanding operational conditions. The relay's ambient operating temperature range of -25 to +55 °C further underscores its resilience in challenging environments.
The 3TH4355-0AB0 is also characterised by its safety features, including finger-safe protection against electrical shock, which is essential for maintaining a safe working environment. Its B10 value with a high demand rate and a T1 value for proof test interval or service life, as per IEC 61508, attest to its durability and reliability over an extended period.
In summary, the Siemens 3TH4355-0AB0 contactor relay is a versatile and reliable solution for industrial control applications, offering a combination of performance, safety, and ease of use that makes it a valuable component in any control system.
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Frequently Asked Questions
What type of product is this?
This is an auxiliary contactor designed for various control and signalling applications in industrial environments.
What are the voltage specifications for the control supply?
The control supply voltage is rated at 24 V AC at 50 Hz and 29 V AC at 60 Hz.
Can this contactor relay be used in extreme temperatures?
Yes, it is designed to operate within an ambient temperature range of -25 to +55 degrees Celsius.
How many contacts does this contactor relay have?
The contactor relay has 5 normally open (NO) and 5 normally closed (NC) contacts.
What is the size of the contactor?
The size of the contactor is classified as size 0.
What is the protection class for the front of the contactor?
The front of the contactor has a protection class of IP20.
What are the dimensions of this contactor relay?
The dimensions are 55 mm in width, 78 mm in height, and 102 mm in depth.
What type of terminals does this contactor relay have for electrical connections?
It features screw-type terminals for auxiliary and control current circuits.
What is the B10 value for this contactor relay?
The B10 value is 1,000,000 with a high demand rate, calculated with 0.3 times the rated operational current (Ie).
What is the T1 value related to the proof test interval or service life?
The T1 value for the proof test interval or service life according to IEC 61508 is 20 years.
How is this contactor relay mounted?
It can be mounted using screws and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 50022.
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