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Got hold of Sime for a Carrier card for a chiller. Machine down in a factory. Received the new card in express time machine and plant now up and running fantastic service form Sime
3 months ago
3SB3420-0B
Siemens 3SB3420-0B available at EU Automation. Get in touch today for a quick price.
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Full 12-month warranty
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What happens next?
1. Email confirmation
You will get an email confirming that we have received your enquiry.
2. Dedicated Account Manager
One of our team will be in touch to confirm your part(s) specification and condition.
3. Your quote
You will receive a comprehensive quote tailored to your specific needs.
The Siemens 3SB3420-0B is a high-quality component designed for use in industrial enclosures. This 22mm contact block features a single contact element with a screw terminal for secure and reliable connections. With a mechanical life of 10,000,000 operating cycles and an electrical life of 10,000,000 operating cycles when used with contactors 3RT1015 to 3RT1026, this component offers exceptional durability and performance. The 3SB3420-0B is suitable for integration with front elements, pressure selection buttons, and suspension switches, providing versatility in various applications. With an operating voltage range of 5 to 400V AC at 50 Hz and 5 to 300V AC at 60 Hz, as well as 5 to 230V DC, this contact block is compatible with a wide range of power supplies. The 3SB3420-0B offers IP40 protection for the housing and IP20 protection for the terminal, ensuring safe and reliable operation in demanding environments.
| Specification | Description |
|---|---|
| Part Number | 3SB3420-0B |
| Alternative Part Number | 3SB34200B |
| Manufacturer | Siemens |
| Isolation Voltage | Rated at 400 V |
| Pollution Degree | Class 3 |
| Operating Voltage Type | AC/DC |
| Shock Voltage Resistance | Rated at 4 kV |
| Protection Rating | IP40 for housing, IP20 for terminal connection |
| Switching Frequency | Maximum 1,000 1/h |
| Mechanical Life | Typical 10,000,000 switching cycles |
| Electrical Life | Typical 10,000,000 switching cycles with contactors 3RT1015 to 3RT1026 |
| Thermal Current | 10 A |
| Operating Voltage Range | 5 - 400 V AC (50 Hz), 5 - 300 V AC (60 Hz), 5 - 230 V DC |
| Auxiliary Circuit | 1 normally closed contact |
| Operating Current (AC-12) | 10 A at 24 V, 48 V, 110 V, 230 V, and 400 V |
| Operating Current (AC-15) | 6 A at 24 V and 48 V |
| Contact Reliability | One malfunction per 100 million (5 V, 1 mA) |
| Connection Type | Screw terminal for base mounting |
What is the insulation voltage rating for this Siemens contact block?
The insulation voltage rating for the Siemens 3SB3420-0B contact block is 400V.
What is the impulse voltage resistance for this contact block?
The impulse voltage resistance for the Siemens 3SB3420-0B contact block is 4kV.
What is the tightening torque for the auxiliary contacts with screw-type terminals?
The tightening torque for the auxiliary contacts with screw-type terminals on the Siemens 3SB3420-0B contact block is 0.8 N·m.
What is the maximum operating cycles per hour for this contact block?
The maximum operating cycles per hour for the Siemens 3SB3420-0B contact block is 1,000.
What is the typical electrical operating cycles with contactors 3RT1015 to 3RT1026?
The typical electrical operating cycles for the Siemens 3SB3420-0B contact block with contactors 3RT1015 to 3RT1026 is 10,000,000.
What is the typical mechanical operating cycles for this contact block?
The typical mechanical operating cycles for the Siemens 3SB3420-0B contact block is 10,000,000.
What type of mounting is used for this contact block?
The Siemens 3SB3420-0B contact block uses floor mounting.
What are the connectable conductor cross-section types for auxiliary contacts?
For the Siemens 3SB3420-0B contact block, the connectable conductor cross-section types for auxiliary contacts are: solid 2x (1 ... 1.5 mm²), solid with conductor end processing 2x (0.5 ... 0.75 mm²), and finely stranded with conductor end processing 2x (0.5 ... 1.5 mm²).
What are the AWG conductor sizes for auxiliary contacts?
The AWG conductor sizes for auxiliary contacts on the Siemens 3SB3420-0B contact block are 2x (18 ... 14).
- Control panel assembly in industrial automation systems
- Machine safety applications
- Motor control circuits
- Auxiliary contact for switchgear and control devices
- Emergency stop button integration
- Indicator light control circuits
- Process control and monitoring systems
- Conveyor system control panels
- HVAC control systems
- Pump and valve control circuits
This content has been produced using multiple sources. EU Automation takes no responsibility for the accuracy of this information. Always consult the original equipment manufacturer for the most up to date instructions and information.
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Customer reviews
steve
Daniel
Excellent customer service...
Alex Bailey is my main point of contact at EU Automation...he is extremely friendly, has exceptional customer service skills and always offers great pricing & lead times.
5 months ago
Jerry Schrink
Tom Higgins provided amazing service
Tom Higgins provided great prompt service. I contacted Tom by phone and within 10 minutes there was a quote in my in box. WOW Thank you Tom and Thank you EU Automation!
5 months ago
Paulo Pereira
Excellent service and communication…
Excellent service and communication from Alex Bailey. He truly goes above and beyond to ensure his clients are 100% satisfied. The entire process was seamless, and his attention to detail made a huge difference. Highly recommended for anyone looking for amazing service!
5 months ago
Gary
Tom Higgins did a great job at getting…
Tom Higgins did a great job at getting us the part we needed. He saw a concern with the part a verified before shipping.
5 months ago
Lessle Smith
Thomas Higgins has gone above and…
Thomas Higgins has gone above and beyond to make things happen for my facility. His customer service and knowledge were an asset in helping me with my order and the logistics challenges!
6 months ago
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