The Siemens 3RH2431-1AP00 Latched Contactor Relay is a premium industrial switching and control component designed to provide dependable performance in demanding automation environments. As part of the renowned Siemens SIRIUS 3RH2 Series, this mechanically latched contactor relay combines energy-efficient operation, reliable contact switching, and compact construction to support a wide range of industrial control applications. The relay features a 230V AC coil, 3 Normally Open (3NO) contacts, and 1 Normally Closed (1NC) contact, making it an ideal choice for control panels, machine automation systems, signaling circuits, interlocking applications, and industrial process control.
One of the most significant advantages of the Siemens 3RH2431-1AP00 is its mechanical latching mechanism. Unlike conventional relays that require continuous coil energization to maintain contact position, this latched contactor relay remains in its switched state even after the control voltage is removed. This feature significantly reduces energy consumption, minimizes heat generation, and enhances overall system efficiency. The latching design is particularly beneficial in industrial applications where maintaining a switching state without continuous power consumption is essential.
The 3RH2431-1AP00 Contactor Relay incorporates a versatile 3NO + 1NC contact configuration, providing multiple switching options for industrial control circuits. The three normally open contacts are commonly used for PLC interfacing, motor starter control, automation sequencing, signaling circuits, and process control functions. The normally closed contact can be utilized for interlocking logic, fault indication, shutdown circuits, and safety-related applications. This flexibility allows engineers and system designers to simplify circuit layouts while improving operational functionality.
Designed in the compact S00 frame size, the Siemens 3RH2431-1AP00 is ideal for installations where panel space is limited. Despite its small footprint, the relay delivers robust electrical performance and dependable switching reliability. Its compact design helps optimize control panel layouts while maintaining easy accessibility for installation, maintenance, and future modifications.
The relay utilizes screw terminal connection technology, a preferred choice for industrial automation systems due to its secure conductor retention and long-term reliability. Screw terminals offer excellent vibration resistance and simplify wiring procedures, ensuring consistent electrical performance even in demanding operating environments. This connection method is particularly beneficial for OEMs, panel builders, and maintenance teams that require dependable and service-friendly installations.
As a member of the Siemens SIRIUS family, the 3RH2431-1AP00 Latched Contactor Relay supports modular system expansion and compatibility with a wide range of Siemens accessories. Additional auxiliary contact blocks, surge suppressors, and mounting accessories can be integrated into the system to meet specific application requirements. This modular design philosophy simplifies engineering, reduces spare-part inventory requirements, and improves long-term maintenance efficiency.
The Siemens SIRIUS 3RH2431-1AP00 operates with a 230V AC, 50/60Hz control supply voltage, making it suitable for industrial control systems worldwide. Siemens engineering ensures high contact reliability even in low-current switching applications, making the relay suitable for PLC-controlled systems, automation networks, and electronic control circuits. The relay is manufactured according to internationally recognized industrial standards, ensuring reliable operation and long service life.
With a rated insulation voltage of 690V, excellent switching capability, and robust construction, the 3RH2431-1AP00 is built to withstand challenging industrial environments. It is widely used in manufacturing facilities, packaging plants, conveyor systems, HVAC installations, process industries, water treatment facilities, material handling systems, and power distribution applications where reliable auxiliary control is essential.
Industrial automation professionals trust the Siemens 3RH2431-1AP00 Latched Contactor Relay for applications requiring dependable control, reduced energy consumption, and long-term operational reliability. Its combination of latching technology, compact size, versatile contacts, and Siemens quality engineering makes it an excellent solution for modern automation systems.
At SBsmart.in, we provide genuine Siemens industrial automation products trusted by engineers, panel builders, OEMs, electrical contractors, and industrial buyers across India. When you purchase the Siemens 3RH2431-1AP00, you receive an authentic Siemens product engineered for superior performance, long service life, and seamless integration into industrial automation environments.
| Specification | Details |
|---|---|
| Product Name | Latched Contactor Relay |
| Manufacturer | Siemens |
| Brand | Siemens |
| Series | SIRIUS 3RH2 |
| Model Number | 3RH2431-1AP00 |
| SKU | 3RH2431-1AP00 |
| Product Type | Mechanical Latching Contactor Relay |
| Relay Type | Auxiliary Contactor Relay |
| Frame Size | S00 |
| Contact Configuration | 3NO + 1NC |
| Number of Normally Open Contacts | 3 |
| Number of Normally Closed Contacts | 1 |
| Coil Voltage | 230V AC |
| Frequency | 50/60 Hz |
| Connection Type | Screw Terminals |
| Mounting Type | DIN Rail / Panel Mount |
| Rated Insulation Voltage (Ui) | 690 V |
| Rated Impulse Withstand Voltage (Uimp) | 6 kV |
| Rated Operational Current AC-15 at 230V | 10 A |
| Rated Operational Current AC-15 at 400V | 3 A |
| Protection Class | IP20 |
| Mechanical Latching | Yes |
| Mechanical Endurance | Up to 10 Million Operations |
| Operating Temperature | -25°C to +60°C |
| Storage Temperature | -55°C to +80°C |
| Standards Compliance | IEC 60947-1, IEC 60947-4-1, IEC 60947-5-1 |
| Applications | Control, Interlocking, Signaling & Automation |
| Product Family | Siemens SIRIUS Control Relays |
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