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Contact SupplierModel / Cat No.440R-B23020 (Guardmaster / MSR5T)
Supply Voltage24 V AC / 24 V DC
Inputs1 / 2 NC (normally closed) safety inputs
Safety Outputs3 NO (normally open) safety contacts
Auxiliary / Feedback Output1 NC (relay auxiliary output)
Reset TypeAutomatic / Manual (configurable)
Response / Safety Output Delay
Typical response times depend on configuration (e.g. ~ 35 ms in DI mode)
Standards / Safety Ratings
Mounting / PhysicalDIN Rail mounting, 22.5 mm width (typical for 440R family)
Operating Temp / Environmental–5 to +55 °C (23 to 131 °F) typical
Protection / RatingsIP40 (enclosure) / IP20
Current / Load CapabilityAccording to mode and contact type




