ABB – 2TLA010040R0200 – Sentry BSR11 24 V DC Safety/Expansion Relay, 4NO

Manufacturer: ABB (formerly Jokab Safety)  

Model/MPN: TLAR – Sentry BSR

Function: Configurable single-channel safety relay with start/test input—can function as expansion relay or standalone unit  

Safety Outputs:  × Normally Open relay contacts (NO), capable of switching up to  A @  VAC/ A rating

Input & Supply:

• Power: + V DC

• Includes spring-clamp screw terminals for safety devices like E-stop or safety gates  

Reset Modes: Manual or automatic reset selectable via onboard switch; supports multi-reset/light-button wiring  

Diagnostics & Interface:

• LEDs for ON, OUT, and X status

• Configurable timer/delay function (accuracy ±%) and test/start input for system checks

Safety Ratings: SIL , PL e, Category compliant—ideal for high demands in machine guarding and emergency stop circuits  

Mounting & Enclosure: DIN-rail mountable (. mm width), IP housing, operating temperature – °C to + °C  

Use Cases:

• Standalone safety relay for emergency stops, safety gates, two-hand controls

• Expansion module for safety PLCs, adding four safe outputs without additional controllers