Siemens 3RK1402-0BE00-0AA2 AS-i SlimLine I/O Module

Product Overview

The Siemens 3RK1402-0BE00-0AA2 is a digital AS-i SlimLine I/O module engineered by Siemens for the AS-Interface (Actuator Sensor Interface) fieldbus system. This compact control cabinet module, featuring a 22.5mm width, provides two digital inputs and two relay outputs (2DI/2DQ), making it an efficient solution for collecting signals from field sensors and actuators and transmitting them to the control level. As part of the SlimLine S22.5 series, the Siemens 3RK1402-0BE00-0AA2 is designed for IP20 protection environments, offering reliable performance in distributed control boxes and industrial control panels. The Siemens 3RK1402-0BE00-0AA2 operates as a standard AS-i slave, supporting seamless communication with higher-level control systems through the AS-Interface protocol.

The Siemens 3RK1402-0BE00-0AA2 distinguishes itself with a space-saving footprint that is significantly smaller than previous generation modules, enabling higher I/O density in space-constrained applications. This module features screw-type terminals for secure wiring and a front addressing socket for convenient configuration. The Siemens 3RK1402-0BE00-0AA2 includes flexible sensor supply options, allowing sensors to be powered either through the AS-i cable or an external 24V DC auxiliary power supply (Uaux). This design choice provides engineers with greater flexibility in system design and can contribute to improved energy efficiency. The Siemens 3RK1402-0BE00-0AA2 is a phased-out product but remains a valuable solution for maintaining and upgrading existing AS-i installations, offering a cost-effective pathway to extend the service life of legacy automation systems.

Category: FUJI

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Description

Technical Specifications

Parameter Name	Parameter Value
Product Model	3RK1402-0BE00-0AA2
Manufacturer	Siemens
Product Type	Digital AS-i SlimLine I/O Module
Series/Platform	SlimLine S22.5
Slave Type	Standard Slave
I/O Configuration	2 Inputs / 2 Outputs
Output Type	Relay (2 x 1 output)
Input Type	3-wire sensor input (2 x 1 input)
AS-Interface Protocol Support	Yes
Operating Voltage	26.5…31.6 V DC (AS-interface specification)
ID/ID2 Code	0/F
Data Transfer Rate	100 kbps / 200 kbit/s
Input Current per Channel	5 mA (at signal 1)
Output Contact Rating	6A per output
Electrical Connection	Screw-type terminals
Width	22.5 mm
Height	102 mm
Depth	86 mm
Weight	Approx. 0.15 – 0.18 kg
Mounting Type	35 mm standard rail or wall mounting
Protection Class	IP20
Operating Temperature	-25°C to +70°C
Storage Temperature	-40°C to +85°C
Certifications/Approvals	CE, CSA, UL, RCM

Main Features and Advantages

Compact, Space-Saving Design: The Siemens 3RK1402-0BE00-0AA2 features an ultra-slim 22.5mm enclosure width, which is approximately half the size of previous generation modules. This compact form factor allows automation engineers to significantly increase I/O density within control cabinets and distributed local control boxes. The Siemens 3RK1402-0BE00-0AA2 sets new standards for space efficiency in AS-i network installations, reducing the overall footprint required for system expansion or new installations.

Reliable Relay Outputs: Equipped with two relay outputs, the Siemens 3RK1402-0BE00-0AA2 provides robust switching capabilities suitable for a wide range of actuator control applications. Each relay output can handle currents up to 6A, making the Siemens 3RK1402-0BE00-0AA2 capable of directly driving small motors, solenoids, and other inductive loads without the need for external interposing relays. This feature simplifies system design and reduces component costs.

Flexible Sensor Supply: A notable advantage of the Siemens 3RK1402-0BE00-0AA2 is its selectable sensor power supply. Users can choose to power connected sensors either through the AS-i cable itself or via a separate 24V DC auxiliary supply. This flexibility enables smart energy management strategies—for example, switching off sensor power during production breaks while maintaining AS-i communication. The Siemens 3RK1402-0BE00-0AA2 also supports AS-i Power24V, ensuring compatibility with modern power supply concepts.

Ease of Installation and Maintenance: The Siemens 3RK1402-0BE00-0AA2 is designed for quick and error-free installation. Screw-type terminals provide secure and reliable connections for field wiring, accommodating solid conductors up to 4 mm² or finely stranded wires with end sleeves. The front-facing LED indicators on the Siemens 3RK1402-0BE00-0AA2 enable rapid on-site diagnostics, allowing maintenance personnel to quickly identify communication or power issues. The integrated addressing socket simplifies slave configuration, reducing commissioning time.