X20SC0402 B & R Automation
Wake Industrial LLC is not an authorized distributor of this product.
No Tariffs On US Orders- Straightforward Pricing: No Rush Fees, No Credit Card Fees
The X20SC0402 is a module manufactured by B & R Automation and is part of the X20 Fieldbus Input Output Modules series. It provides 4 digital inputs of safety type A and 2 digital outputs of safety type B2, with a digital output current of 0.2 Amps. The module supports 4 pulse outputs at 24 VDC and features an OSSd time of less than 10 microseconds.
To contact sales for pricing and lead time:
Payment Methods
Shipping Methods
Our Credentials
Product Description:
The X20SC0402 is a safety-oriented slice in the X20 Fieldbus Input/Output Modules series from B&R Automation. Designed for distributed machine architectures, the module combines safe digital inputs, safe pulse outputs, and conventional digital outputs within one 12.5 mm housing. In a functional safety loop, it acts as the interface between light curtains, emergency-stop buttons, or proximity sensors and the higher-level controller. Its integrated outputs can drive indicator lamps or interlock solenoids, allowing input monitoring and low-current actuation to be handled by the same compact module.
The input side provides 4 isolated digital channels that meet the Type A safety classification, enabling direct connection of single-channel sensors without additional diagnostics. Each input is evaluated by internal OSSD circuitry that removes power from the sensor line in under 10 µs, limiting fault reaction time in high-speed machinery. When motion verification or belt speed measurement is required, the module provides four pulse outputs. These outputs have a regulated switching level of 24 VDC, making them suitable for incremental encoders or counter cards on adjacent slices. The functions operate through the common backplane used by the X20 Fieldbus Input/Output Modules series, so additional wiring is not required for logic distribution.
The output section is physically separated from the safe inputs. It contains 2 semiconductor drivers that can each supply up to 0.2 A to field coils or status beacons. These outputs meet the Type B2 safety category, which adds cross-fault detection and short-circuit monitoring when they are paired with a certified controller. Distributing low-current actuation directly at the machine reduces the required cabinet wiring while retaining deterministic shutdown capability. Using a single slice for logic feedback and final-element actuation also reduces the number of installed nodes and simplifies validation of the associated safety functions.
