Title: SIEMENS SIRIUS ACT Contact Block 1 NO + 1 NC Screw Terminal Floor Mounting 3RK1903-1AB00 for Industrial Control

Product Overview:
The SIEMENS SIRIUS ACT 3RK1903-1AB00 is a high-performance, robust contact block engineered for reliable switching functions in demanding industrial environments. As a crucial component within the renowned SIRIUS ACT series, this contact block features a versatile 1 Normally Open (NO) and 1 Normally Closed (NC) contact configuration, making it ideal for a wide array of control and signaling applications. Designed for secure floor mounting and equipped with user-friendly screw terminals, the 3RK1903-1AB00 ensures quick, secure, and efficient wiring, significantly reducing installation time. Its durable construction guarantees long-term operational stability and enhanced safety, providing precise feedback on circuit status for critical automation and control systems. Elevate the reliability and efficiency of your industrial machinery and control panels with this essential SIEMENS electrical component, ensuring seamless integration and superior performance in your control circuits.

Key Features & Benefits:

Dual Contact Configuration: Features 1 Normally Open (NO) and 1 Normally Closed (NC) contact, offering versatile switching options for diverse control circuits and signaling requirements.
Secure Screw Terminals: Equipped with robust screw terminals that ensure strong, vibration-resistant electrical connections, enhancing system reliability, safety, and ease of maintenance.
Flexible Floor Mounting: Specifically designed for convenient and secure floor mounting, providing adaptability in panel design and installation layouts for optimal space utilization.
SIEMENS SIRIUS ACT Series: Integrates seamlessly with other SIEMENS SIRIUS ACT components, guaranteeing compatibility, high quality, and consistent performance across your entire control system.
High Switching Reliability: Engineered for precise and dependable switching operations, minimizing downtime, preventing false signals, and ensuring continuous process control.
Exceptional Durability: Constructed from premium industrial-grade materials, offering superior resistance to wear, corrosion, dust, and environmental stressors for extended service life in harsh conditions.
Simplified Installation: The intuitive design and clear terminal markings facilitate quick and error-free wiring, streamlining the installation process and significantly reducing labor costs.
Broad Application Suitability: Perfect for use in industrial automation, machine building, process control, safety circuits, and various electrical control panel applications requiring robust contact blocks.
Enhanced Operational Safety: Provides clear and immediate indication of circuit status, contributing to safer operation, easier troubleshooting, and improved system diagnostics within complex industrial setups.
Compliance with Standards: Manufactured to meet stringent international industrial standards and certifications, ensuring global applicability and adherence to critical safety regulations.

Applications:

The SIEMENS SIRIUS ACT 3RK1903-1AB00 contact block is an indispensable component for a multitude of industrial and commercial applications requiring precise and reliable electrical switching. Its robust design and versatile contact configuration make it perfectly suited for:
Industrial Automation Systems: Essential for controlling motors, actuators, solenoids, and signaling devices in automated production lines and assembly processes.
Control Panels and Switchgear: Integral for building complex control circuits, interlocking systems, and auxiliary functions within electrical enclosures and distribution boards.
Machine Building and Plant Engineering: Used extensively in the construction of new machinery, equipment, and the modernization or expansion of existing industrial plants.
Conveyor Systems: Provides critical switching functions for start/stop controls, emergency stops, material flow management, and position sensing in logistics and manufacturing.
Process Control 
Applications:
 Facilitates precise control over various industrial processes, including fluid handling, temperature regulation, and material processing, ensuring operational efficiency and safety.
Safety Circuits: Can be integrated into safety-related applications to provide reliable feedback on safety device status, emergency stop buttons, and protective interlocks.
Motor Control Centers (MCCs): A key element in motor starter circuits for auxiliary contacts, status indication, and interlocking functions to prevent unintended operations.
Building Management Systems (BMS): Utilized in HVAC controls, lighting systems, access control, and security systems for reliable switching and monitoring.
Any application demanding high-quality, reliable Normally Open and Normally Closed contact switching for signaling, control, or feedback purposes in industrial or commercial settings.

Technical Specifications:

Part Number: 3RK1903-1AB00
Part Number (without special characters): 3RK19031AB00
Contact Configuration: 1 NO (Normally Open) + 1 NC (Normally Closed)
Connection Method: Screw Terminal
Mounting Type: Floor Mounting
Series: SIEMENS SIRIUS ACT
Rated Insulation Voltage (Ui): 500 V AC
Rated Operational Current (Ie): 6 A (at AC-15, 230V)
Operating Temperature Range: -25°C to +70°C
Storage Temperature Range: -40°C to +80°C
Protection Degree: IP20 (Terminals)
Mechanical Endurance: > 10 million operating cycles
Electrical Endurance: > 1 million operating cycles (at rated load)
Weight: 0.05 kg