3RK1903-0AB10 SIEMENS TERMINAL MODULE FOR ET 200S DS

SIEMENS 3RK1903-0AB10 TERMINAL MODULE FOR ET 200S DS

Product Description:

The SIEMENS 3RK1903-0AB10 is a modular safety relay designed for implementing safety functions in industrial automation systems. As part of Siemens' SIMATIC Safety Relay family, this device provides reliable monitoring and control of safety-related components and circuits in machinery and equipment. The safety relay is engineered to meet international safety standards and offers flexible configuration options for various safety applications.

This compact safety module features forced-guided contacts that ensure positive safety operation and prevent contact welding. The unit is designed for easy integration into control systems with clear LED status indicators for immediate visual feedback on the safety circuit status. The modular design allows for straightforward installation and maintenance, while the comprehensive diagnostic capabilities enable quick troubleshooting and reduce downtime.

The 3RK1903-0AB10 is particularly suitable for monitoring safety gates, emergency stop circuits, light curtains, and other safety devices in manufacturing equipment, packaging machinery, and automated production lines. Its robust construction and reliable performance make it ideal for ensuring operator safety and compliance with machinery safety regulations in demanding industrial environments.

Technical Specifications:

General Specifications: The safety relay operates on a 24V DC power supply with a range of 20.4V to 28.8V DC. The device is designed for DIN rail mounting (35mm rail according to EN 60715) and features a compact form factor. The unit meets Safety Integrity Level (SIL) 3 according to IEC 61508 and Performance Level (PL) e according to ISO 13849-1.

Contact Configuration: The relay features 3 safety contacts (normally open) with a switching capacity of 6A at 250V AC. The forced-guided contacts ensure safe operation and provide reliable feedback monitoring. The auxiliary contacts include 2 normally open and 2 normally closed contacts for additional control functions.

Electrical Characteristics: The maximum operating current is 100mA for the safety circuit. The device has a typical response time of 20ms for safety function activation. The electrical durability is rated for 100,000 operations at rated load. The mechanical durability exceeds 10 million operations.

Safety Functions: The relay supports monitoring of emergency stop circuits, safety gates, and two-hand control devices. It features automatic start prevention and manual reset functionality. The device includes cross-circuit detection and contact monitoring for enhanced safety performance.

Environmental Specifications: The operating temperature range is -25°C to +60°C. The storage temperature range is -40°C to +85°C. The relative humidity rating is 5% to 95% non-condensing. The device is rated for operation at altitudes up to 2000 meters above sea level. The vibration resistance is 5-8.4Hz at 3.5mm amplitude and 8.4-150Hz at 1G acceleration.

Protection and Safety Features: The unit features short-circuit protection and overload protection. The insulation coordination meets overvoltage category III according to IEC 60664-1. The clearance and creepage distances comply with reinforced insulation requirements. The device has a rated impulse withstand voltage of 4kV.

Certifications and Standards: The safety relay carries CE marking and complies with European directives. It is UL recognized and cULus listed. The device meets IEC 60204-1 for electrical equipment of machines and complies with IEC 60947-5-1 for low-voltage switchgear and controlgear.

Connection Technology: The unit features screw-type terminals with cage-clamp technology for secure wiring connections. The terminals accept wire sizes from 0.5mm² to 2.5mm². All connections are clearly marked and accessible from the front of the device.

Diagnostic Capabilities: The device features comprehensive LED status indicators for power supply, safety circuit status, and fault conditions. The built-in diagnostic functions monitor circuit integrity and provide immediate feedback on safety system status.

Application Flexibility: The safety relay can be used in single or dual-channel safety circuits. It supports connection of various safety devices including emergency stop buttons, safety interlock switches, and safety light curtains. The device is compatible with most PLC systems and can be integrated into existing control architectures.

Disclaimer: This information is provided for reference purposes only. For complete specifications and installation guidelines, consult the official Siemens documentation. Installation and operation must be performed by qualified personnel following all safety regulations and local electrical codes. Specifications are subject to change without notice.

FAQ & Contact:

Q: Are you a trading company or a manufacturer?

A: We are a trading company.

Q: What is your lead time?

A: It usually takes one to three days if we have it in stock. If the goods are not in stock, you need to negotiate.

Q: Does your company provide samples? Is it free or do you charge extra?

A: It depends on the goods you need and the quantity you order.

Q: What are your terms of payment?

A: 100%  T/T before shipping. If the quantity is large, we can negotiate.

Our Services:

1,All our products are new and original, and of good quality.

2,Our prices are very competitive.

3,We have a large quantity in stock, so we could help the customers to get the components which are difficult to get.

4,All inquiries will be valued and will reply in 24.

Packing & Delivery:

1)100% brand New and Original Factory Seal!

2)Warranty: 1 year

3)Package: Original packing with cartons.

4)Delivery time: Shipped in 3-7 days after payment

5) All the goods will be tested before shipment.

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