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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3SB3403-0A |
| Alternative Part Number | 3SB34030A |
| Manufacturer | Siemens |
| Category | General Automation |
| Voltage Range | 5 to 400 V ac |
| Current Rating | 10 A |
| Contact Configuration | 1 Normally Open (NO) & 1 Normally Closed (NC) |
| Contact Material | Gold-plated contacts |
| Connection Type | Spring-loaded terminals |
| Mounting Type | Front panel mounting |
| Operating Temperature | -25 to +70 °C during operation |
| Storage Temperature | -25 to +80 °C during storage |
| Mechanical Life | Typically 10 million switching cycles |
| Electrical Life | Typically 10 million switching cycles with contactors |
| Insulation Voltage | Rated at 400 V |
| Pollution Degree | Class 3 |
| Operating Voltage (AC) | 5 to 400 V at 50 Hz, 5 to 300 V at 60 Hz |
| Operating Voltage (DC) | 5 to 230 V |
| Shock Voltage Resistance | Rated at 4 kV |
| Protection Class | IP40 for housing, IP20 for terminal connections |
| Dimensions (H x W x D) | 45 mm x 10 mm x 33.4 mm |
| Commodity Code | 853650 |
The Siemens 3SB3403-0A is a robust contact block designed for seamless integration into various control systems. This component is engineered to facilitate both normally open (NO) and normally closed (NC) operations, making it a versatile choice for a wide range of industrial applications. With a rated operational voltage ranging from 5 to 400 V ac and a consistent 10 A thermal current, it ensures reliable performance across different power setups.
Crafted for durability, the contact block boasts an impressive mechanical lifespan of up to 10 million switching cycles, highlighting its capacity for long-term use. The electrical lifespan also matches this endurance, particularly when used with contactors from the 3RT1015 to 3RT1026 series. The contact elements are gold-plated, which not only enhances conductivity but also provides resistance against corrosion, ensuring the integrity of connections over time.
The part is designed with user convenience in mind, featuring spring-loaded terminals that simplify the wiring process and ensure a secure, maintenance-free connection. It is suitable for front panel mounting, allowing for easy access and straightforward installation. The compact dimensions, with a height of 45 mm, width of 10 mm, and depth of 33.4 mm, make it an unobtrusive addition to control panels.
With an operational temperature range of -25 to +70°C, the Siemens 3SB3403-0A is built to withstand challenging environmental conditions, ensuring consistent operation even in demanding settings. Its protection ratings of IP40 for the housing and IP20 for the terminal connections further attest to its resilience against particulate ingress.
This contact block is an ideal solution for those seeking a reliable and efficient component to facilitate control and signalling functions within their automation systems. Whether used in manufacturing, processing, or other industrial environments, the Siemens 3SB3403-0A stands as a testament to quality and performance in general automation.
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Frequently Asked Questions
What type of contact block is the Siemens 3SB3403-0A?
The Siemens 3SB3403-0A is a contact block that features 1 Normally Open (NO) and 1 Normally Closed (NC) contact, suitable for a variety of control and signalling applications.
Can the contact block be used with both AC and DC voltage?
Yes, the contact block is designed to operate with both AC and DC voltage, with an insulation voltage rating of 400 V.
What is the thermal current rating for this contact block?
The thermal current rating for the contact block is 10 A.
What is the mechanical lifespan of the contact block?
The mechanical lifespan of the contact block is typically around 10 million switching cycles, indicating its durability and reliability for long-term use.
What are the dimensions of the contact block?
The contact block has a height of 45 mm, a width of 10 mm, and a depth of 33.4 mm, making it compact and suitable for use in various control panel configurations.
What type of terminals does the contact block have for wire connection?
The contact block is equipped with spring-type terminals, which provide a secure and maintenance-free connection for the wires.
What is the operating temperature range for the contact block?
The operating temperature range for the contact block is from -25°C to +70°C, ensuring reliable operation in a wide range of environmental conditions.
What is the protection rating of the contact block's housing?
The housing of the contact block has a protection rating of IP40, which means it is protected against solid objects larger than 1 mm but not against liquids.
Is there a successor product for the Siemens 3SB3403-0A?
Yes, the Siemens 3SB3403-0A is an outgoing product and its preferred successor is the SIRIUS ACT 3SU1 series.
What is the switching frequency limit for this contact block?
The maximum switching frequency for the contact block is 1,000 operations per hour.
Part conditions explained
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New unsealed: The product is in its original packaging, but the packaging has been opened or unsealed. It has never been used and should be in near pristine condition.
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Refurbished: The product has been previously used, but it has undergone a thorough refurbishment process to restore it to a like-new or functional condition. Any defects or issues have been addressed, making it suitable for reuse.
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