Technical Parameters
Parameter / Feature Specification
Model / Type SSR10 — Safety relay (2TLA010050R0000)
Supply Voltage 24 V DC
Input Monitoring Single‑channel or dual‑channel safety devices, including OSSD‑output devices
Reset Mode Manual or automatic (selectable)
Safety Output Contacts 3 × Normally‑Open (NO) + 1 × Normally‑Closed (NC)
Contact Rating Up to 6 A for resistive DC or AC loads
Mounting / Wiring DIN‑rail mountable; screw‑terminal connections
Dimensions (W × H × D) 22.5 mm × 120 mm × 120 mm
Protection IP20 (housing and terminals)
Safety Performance Performance Level e (PL e), suitable for high-category safety applications
Typical Applications Emergency‑stop circuits, guard interlocks, light‑curtain monitoring, general machine‑safety control
The SSR10 is a compact safety relay in the “Sentry” family by ABB. It is used to monitor safety devices (such as emergency‑stop buttons, safety switches/interlocks, light curtains / OSSD‑output devices, or other contact‑type safety devices) in either single‑channel or dual‑channel mode. The relay evaluates the safety inputs and provides safety‑rated relay outputs when conditions are satisfied. A front‑panel switch allows selection between manual‑reset or automatic‑reset behavior. The SSR10 is designed for DIN‑rail mounting with screw‑terminal wiring, making it easy to integrate into machine safety circuits or control cabinets for industrial machinery.