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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3TH2022-0BB4 |
| Alternative Part Number | 3TH20220BB4 |
| Manufacturer | Siemens |
| Product Type | Contactor Relay |
| Contactor Size | 0 |
| Operating Voltage | 24 V dc |
| Number of Contacts | 4 (2 NO + 2 NC) |
| Contact Current Rating | At AC-15: 4 A at 230 V, 3 A at 400 V |
| Protection Class IP | IP20 |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022 |
| Dimensions (Height x Width x Depth) | 48 mm x 45 mm x 68 mm |
| Connection Type | Screw-type terminals |
| Ambient Operating Temperature | -25 to +55 °C |
| Reference Code | According to DIN 40719 extended, IEC 204-2, IEC 750, DIN EN 61346-2, DIN EN 81346-2 |
| B10 Value | 400,000 (with 0.3 x Ie) |
| T1 Value | 20 years (for proof test interval or service life according to IEC 61508) |
| Protection Against Electrical Shock | Finger-safe |
| Commodity Code | 85364900 |
The Siemens 3TH2022-0BB4 is a high-quality contactor relay designed to facilitate the control of electrical circuits. This compact and robust component is engineered to operate with a control supply voltage of 24 V DC, making it suitable for a wide range of industrial applications. With a contactor size of 0, it is an ideal choice for space-constrained environments.
This contactor relay features 2 normally open (NO) and 2 normally closed (NC) contacts, providing versatility in its integration into various control systems. The operating current at AC-15 is rated at 4 A for 230 V and 3 A for 400 V, ensuring reliable performance for moderate power applications.
The device is constructed with screw terminals for secure and straightforward wiring, and it is designed for easy mounting onto a 35 mm standard mounting rail according to DIN EN 50022. With an ambient operating temperature range of -25 to +55 °C, the Siemens 3TH2022-0BB4 can withstand challenging industrial environments.
The protection class IP20 on the front of the device ensures that it is protected against solid objects larger than 12.5 mm, although it should be installed in a suitable enclosure for enhanced protection. The contactor relay is also designed with finger-safe terminals to enhance safety during installation and maintenance.
The Siemens 3TH2022-0BB4 is a reliable and efficient solution for controlling electrical loads in industrial automation systems, offering both flexibility and durability for a variety of applications.
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Frequently Asked Questions
What type of device is this?
This is a contactor relay designed for controlling electrical circuits. It's a switching device allowing for the remote control and isolation of power circuits.
What are the contact configurations for this relay?
The relay features 2 normally open (NO) and 2 normally closed (NC) contacts, providing flexibility in circuit design and functionality.
Can this relay be used in safety applications?
While the relay provides reliable switching, its suitability for safety applications depends on the specific requirements of the system. It's important to consult the relevant standards and regulations for safety-related applications.
What is the control supply voltage rating for this relay?
The control supply voltage is rated at 24 V DC, making it suitable for many industrial control systems that operate on a 24 V DC control voltage.
What is the operating current rating for this relay at AC-15?
The operating current at AC-15 is rated at 4 A for 230 V and 3 A for 400 V, which indicates its capacity to handle control circuit loads.
What are the dimensions of this relay?
The relay has a height of 48 mm, a width of 45 mm, and a depth of 68 mm, making it compact and suitable for installation in standard control panels.
What type of terminals does this relay have for electrical connections?
It is equipped with screw-type terminals, which provide a secure and reliable connection for both auxiliary and control current circuits.
How is this relay mounted?
The relay can be mounted using screw and snap-on mounting onto a 35 mm standard mounting rail according to DIN EN 50022.
What is the ambient temperature range for operating this relay?
The relay is designed to operate within an ambient temperature range of -25°C to +55°C, accommodating a wide range of industrial environments.
What is the protection class for the front of this relay?
The front of the relay has a protection class of IP20, which provides protection against solid objects larger than 12.5 mm but not against water.
