3RH2140-1AP00
The Siemens SIRIUS 3RH2140-1AP00 is an S00 size contact relay with 4 normally open (4 NO) contacts, an AC 230V 50/60Hz coil, and screw terminal connections. It conforms to European AC 230V control power supply standards and is commonly used in export-oriented machines for signal switching and multiplication in control circuits.
Product Positioning
The 3RH2140-1AP00 is a basic 4-pole contact relay from the SIRIUS 3RH21 series. It uses an AC 230V 50/60Hz coil and screw terminals, conforming to European AC 230V control power standards. It is commonly used in export-oriented machines. It can be used for PLC output expansion, interlocking control, and signal multiplication, and is a common intermediate relay choice in control panels.
Core Product Advantages and Features
4NO contact configuration
The device has four normally open instantaneous contacts, which can switch multiple control signals simultaneously to meet general interlocking and signal amplification requirements.
AC230V coil
AC 230V 50/60Hz coil, conforming to European standard AC 230V control power supply, commonly used in export machines, eliminating the need for additional voltage conversion components.
Screw terminals
The screw terminal wiring is secure and suitable for general panel installation and future maintenance disconnection.
Expandable to 8 poles
The front can be fitted with a 3RH29 auxiliary switch, and up to 4 more contacts can be added. The number of control points can be expanded using the same relay.