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Siemens 3RK1903-3CA00 PROFISAFE F-CM Fail-Safe Contact Multiplier

Siemens 3RK1903-3CA00 ET200S PROFISAFE F-CM

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ManufacturerSiemens

Part number3RK1903-3CA00

Type PROFISAFE F-CM (Fail-Safe Communication Module)

Contacts 4 Floating Contacts

Rating 2 A DC-13 at 24 V

Compatibility ET200S

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4 Floating Safety Contacts 2A Switching Capacity at 24V DC PROFISAFE Certified For ET200S System Fail-Safe Operation

Product description

The Siemens 3RK1903-3CA00 is an ET200S PROFISAFE F-CM (Fail-Safe Communication Module) designed to multiply safety signals. It features 4 floating contacts that can switch up to 2A at 24V DC (DC-13 rating), enabling coupling with separate safety circuits. This module is specifically engineered for fail-safe applications, ensuring reliable operation in safety-critical systems.

This contact multiplier is ideal for safety applications where a single safety signal needs to be distributed to multiple circuits or monitored by various safety devices. It is commonly used in machinery with hazardous movements, safety gates, emergency stop systems, and other safety-related control functions in manufacturing, automotive, and material handling industries.

Stanlo Automation, your trusted veteran-owned source for surplus industrial automation parts, provides the Siemens 3RK1903-3CA00 PROFISAFE F-CM. Ensure the integrity of your safety circuits with this reliable component.

Technical specifications

Type	PROFISAFE F-CM (Fail-Safe Communication Module)
Contacts	4 Floating Contacts
Rating	2 A DC-13 at 24 V
Compatibility	ET200S
Functionality	Fail-safe contact multiplication

Common applications

Safety Gate Monitoring

Emergency Stop Circuits

Machine Safety

Industrial Automation Safety

Control of Safety Relays

Hazardous Machinery

Compatible systems

Siemens ET200S I/O System Siemens PROFIsafe Controllers (e.g., S7-300F, S7-400F, S7-1500F)

Also known as

Siemens ET200S PROFISAFE F-CM 3RK1903-3CA00 safety module

Replaces / compatible with

This module is part of the Siemens ET200S I/O system and PROFISAFE family, designed for integration with Siemens safety controllers.

Technical note

Expert tip

This module requires a PROFISAFE-compatible safety PLC or master module for proper operation within a safety circuit.

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Frequently asked questions

What is the current rating for the contacts on the Siemens 3RK1903-3CA00 F-CM module?

The Siemens 3RK1903-3CA00 PROFISAFE F-CM module features 4 floating contacts, each rated for 2 Amperes at 24V DC (DC-13 rating).