3TH4271-0BB4
The Siemens SIRIUS 3TH4271-0BB4 control relay features an 8-pole design with 7 NO+1 NC contacts, 24V DC coil power supply, and can be mounted on a standard DIN rail. It is suitable for expanding PLC output contacts and signal conversion.
Product Positioning
The 3TH4271-0BB4 is a common 24V DC coil control relay in the Siemens SIRIUS 3TH4 series. It has 7 normally open and 1 normally closed contacts and is widely used for signal amplification and circuit expansion at the PLC output.
Core Product Advantages and Features
7NO+1NC contact combination
A single relay can provide 7 sets of normally open and 1 set of normally closed contacts, simplifying the wiring design of the control panel.
24V DC low voltage coil
It adopts a 24V DC coil commonly used in the industry, which can be directly connected to most PLC output modules or DC power supply systems.
quick installation of guide rails
It supports 35mm DIN rail clip mounting and can also be fixed with screws, making maintenance and replacement convenient.
Contact load stability
The rated current of the contacts can withstand the switching requirements of general control circuits and is suitable for long-term stable operation.
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3TH4271-0BF4
The Siemens SIRIUS 3TH4271-0BF4 control relay features an 8-pole design with 7 NO + 1 NC contacts, a 110V DC coil power supply, and can be mounted on a 35mm standard DIN rail. It is suitable for signal amplification and expansion applications in DC control circuits.
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3TH4271-0AP0
The Siemens SIRIUS 3TH4271-0AP0 control relay features an 8-pole design with 7 NO+1 NC contacts, 230V AC coil power supply, a rated current of 10A, and can be mounted on a standard DIN rail, suitable for general AC control circuits.
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3TH4271-0AG2
The Siemens SIRIUS 3TH4271-0AG2 control relay features an 8-pole 7NO+1NC contact design, a 110V AC 50/60Hz dual-frequency coil, AC-15 rated 10A/230V, and dimensions of 78x45x102mm.