Littelfuse TDR4A11 is an 8-pin plug-in time delay relay. It has an output load rating of 10 A resistive at 120/240 V ac and 30 V dc, and 1/3 hp at 230 V ac. The AC line frequency can be either 50 or 60 Hz, with an input tolerance of -20% to 10%. It offers a repeat accuracy of ±0.1% or 20 ms, whichever is greater, and insulation resistance of ≥100. The setpoint vs ambient temperature and operating voltage has a tolerance of ≤±2%. The power consumption is ≤2 VA, and the reset time is ≤150 ms. It features a microcontroller time delay type and has a long electrical and mechanical life of 1 x 10⁵ and 1 x 10⁷ respectively. The recycle time is ≤500 ms, and the setting accuracy is ≤±2% or 50 ms, whichever is greater. The indication includes an input green LED that turns on when input voltage is applied and a relay red LED that turns on when the output relay energizes.