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Siemens
3TH4355-0BM4
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Check similar products or call us on +44 20 4570 3439 for assistance
This part is currently sold out
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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3TH4355-0BM4 |
| Alternative Part Number | 3TH43550BM4 |
| Manufacturer | Siemens |
| Contactor Relay Type | 55E EN 50 011 |
| Number of Contacts | 5NO (Normally Open) + 5NC (Normally Closed) |
| Terminal Type | Screw Terminals |
| Operation Voltage | DC 220V |
| Size of the Contactor | 0 |
| Ambient Operating Temperature | -25°C to +55°C |
| Protection Class | IP20 |
| Reference Code | K (according to DIN 40719, IEC 204-2, IEC 750, DIN EN 61346-2, DIN EN 81346-2) |
| Control Circuit Voltage Type | DC |
| Control Supply Voltage (Rated) | 220V DC |
| Operating Current at AC-15 | 10A at 230V, 6A at 400V |
| Identification Number | 55 E |
| Mounting Type | Screw and snap-on mounting onto 35 mm standard mounting rail according to DIN EN 50022 |
| Dimensions (Width x Height x Depth) | 55mm x 78mm x 135mm |
| Certificates/Approvals | General Product Approval, Functional Safety / Safety of Machinery, Type Examination |
| Protection Against Electrical Shock | Finger-safe |
| B10 Value with High Demand Rate | 1,000,000 (according to SN 31920, with 0.3 x Ie) |
| T1 Value for Proof Test Interval | 20 years (according to IEC 61508) |
The Siemens 3TH4355-0BM4 is a robust contactor relay designed to meet the demands of industrial control applications. This component is engineered to facilitate seamless integration into various control systems, offering a reliable solution for switching and managing electrical circuits. With a configuration of 5 normally open (NO) and 5 normally closed (NC) contacts, it provides versatile connection possibilities to suit a wide range of circuit designs.
Constructed with screw terminals for secure and durable connections, the 3TH4355-0BM4 operates on a DC control supply voltage, with a rated value of 220V. It is suitable for use within a broad ambient temperature range of -25 to +55 degrees Celsius, ensuring consistent performance in diverse working environments.
The device boasts a compact form factor, with dimensions that allow for easy installation onto a 35 mm standard mounting rail according to DIN EN 50022. Its finger-safe design enhances protection against electrical shock, making it a safe choice for various applications.
With a high B10 value indicating a long service life, the Siemens 3TH4355-0BM4 is a dependable choice for those seeking a contactor relay that combines functionality with longevity. Whether used in control panels, automation systems, or other industrial applications, this part is a testament to Siemens' commitment to quality and reliability in electrical components.
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Frequently Asked Questions
What type of relay is this?
This is a contactor relay designed for DC operation with a DC solenoid system, featuring 5NO (normally open) and 5NC (normally closed) contacts.
What are the operating temperature limits for this relay?
The relay can operate within an ambient temperature range of -25 to +55 degrees Celsius.
What is the protection class of the relay?
The protection class for the front of the relay is IP20.
What is the rated control supply voltage for this relay?
The rated control supply voltage for the DC operation of this relay is 220V.
Can this relay be used in AC control circuits?
No, this relay is specifically designed for DC control circuits.
What is the operating current for the auxiliary circuit at different voltages?
At 230V, the operating current is rated at 10A, and at 400V, it is rated at 6A for the AC-15 auxiliary circuit.
How can this relay be 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 are the dimensions of this relay?
The dimensions of the relay are 55 mm in width, 78 mm in height, and 135 mm in depth.
Does this relay have any certifications or approvals?
Yes, it has general product approval and may include other specific test certificates and declarations of conformity.
What is the B10 value for this relay?
The B10 value, which indicates the number of operating cycles until 10% of components may fail, is 1,000,000 with a high demand rate according to SN 31920, with the note that this is with 0.3 times the rated operating current (Ie).
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