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Specification & Description
| Specification | Description |
|---|---|
| Part Number | 3SB3403-0M |
| Alternative Part Number | 3SB34030M |
| Manufacturer | Siemens |
| Type | Contact Block |
| Insulation Voltage | Rated at 400 V |
| Degree of Pollution | Class 3 |
| Type of Voltage | Suitable for AC/DC operating voltage |
| Surge Voltage Resistance | Rated value 4 kV |
| Protection Class IP | IP40 for enclosure, IP20 for terminal connections |
| Operating Current at AC-15 | 6 A at 24 V, 6 A at 48 V, 6 A at 110 V, 6 A at 230 V, 3 A at 400 V |
| Operating Current at DC-13 | 3 A at 24 V, 1.5 A at 48 V, 0.7 A at 110 V, 0.3 A at 230 V |
| Electrical Connection | Spring-loaded terminals |
| Connectable Conductor Cross-sections | 2x (0.25 ... 1.5 mm²) solid, 2x (0.25 ... 0.75 mm²) finely stranded with core end processing |
| Ambient Temperature | Operating: -25 ... +70 °C, Storage: -25 ... +80 °C |
| Mounting Type | Front mounting |
| Dimensions | Height: 30 mm, Width: 10 mm, Depth: 21.2 mm |
| Product Function | Positive opening feature for safety |
| Number of NC Contacts | 1 |
| Number of NO Contacts | 0 |
| Number of Changeover Contacts | 0 |
| Contact Reliability | One incorrect switching operation of 100 million switching operations (5 V, 1 mA) |
| Thermal Current | 10 A |
| Reference Code | According to DIN EN 61346-2: S |
The Siemens 3SB3403-0M is a robust contact block designed for seamless integration into a variety of industrial control systems. This component is engineered to offer reliable performance in demanding environments, ensuring consistent operation and longevity. With a spring-loaded terminal connection, it facilitates quick and secure wiring, streamlining the installation process.
The contact block features a single normally closed (NC) contact configuration, which is a crucial element in safety and control circuits. The NC contact ensures that a circuit is completed when the switch is in its default position, providing a fail-safe mechanism for critical operations.
Constructed to withstand a high number of operating cycles, the 3SB3403-0M boasts an impressive mechanical service life of up to 10 million switching cycles, making it a durable choice for repetitive tasks. Its electrical endurance is equally robust, matching its mechanical reliability with the same number of cycles when used with compatible contactors.
The part is designed with a positive opening operation, which complies with stringent safety standards, ensuring that the contacts will open in the event of an emergency or a specific fault condition. This feature is particularly important for applications that require a high level of safety and reliability.
With an insulation voltage rated at 400V and impulse voltage resistance of 4kV, the Siemens 3SB3403-0M is equipped to handle a variety of electrical loads while maintaining its integrity and performance. The operating temperature range of -25 to +70°C allows it to function effectively in a wide range of environmental conditions, from cold storage facilities to high-temperature industrial settings.
The compact dimensions of the contact block, with a height of 30mm, width of 10mm, and depth of 21.2mm, make it an ideal choice for applications where space is at a premium. Its front mounting design allows for easy access and maintenance, further enhancing its user-friendly attributes.
Overall, the Siemens 3SB3403-0M contact block is a reliable and efficient solution for industrial control applications, offering safety, durability, and ease of use in a compact and versatile package.
Commonly Asked Questions
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Frequently Asked Questions
What is the function of the contact block?
The contact block is used for front plate mounting and comes with a mounting monitoring contact and spring-loaded terminal. It's designed to be integrated into control systems for various functions, such as stopping a machine or starting an operation.
Can this contact block be used with both AC and DC operating voltages?
Yes, the contact block is suitable for use with both AC and DC operating voltages, providing flexibility in different electrical environments.
What is the thermal current rating for this contact block?
The thermal current rating for the contact block is 10 A, which indicates the maximum current the contact can carry under specified thermal conditions.
Does this contact block have a positive opening function?
Yes, the contact block is equipped with a positive opening function, which ensures that the contacts will open in the event of an emergency, enhancing the safety of the system it's integrated into.
What type of electrical connection does this contact block support?
This contact block supports a spring-loaded terminal type of electrical connection, which allows for quick and secure connections without the need for tools.
What is the degree of protection provided by the enclosure of this contact block?
The enclosure of the contact block provides a protection class of IP40, which guards against solid objects larger than 1mm, such as wires or small tools.
What are the ambient temperature operating limits for this contact block?
The contact block can operate within an ambient temperature range of -25 to +70 degrees Celsius, ensuring reliable performance in a variety of environmental conditions.
What is the mechanical service life of this contact block?
The mechanical service life of the contact block is typically around 10 million switching cycles, indicating its durability and longevity in operational use.
What is the insulation voltage rating for this contact block?
The insulation voltage rating for the contact block is 400 V, which is the rated value for the voltage that the insulation can withstand.
How does the contact block ensure compliance with safety regulations?
The contact block is designed with safety features such as positive opening and mounting monitoring, which help ensure compliance with safety regulations and directives.
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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New unboxed: The product does not come in its original packaging, but it has never been used and is in great working condition.
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.
Used: The product has been previously owned and has been used. It may show signs of wear and tear but is still functional and operational. The condition may vary depending on the specific item and its usage history.
