PISA11.403 Puls Protection Modules (DC)

Out if stock but available for backorder.

PULS PISA11.403 is a protection unit designed as a 4-channel protection module with 1 input and 4 outputs, suitable for DIN rail mounting. It operates within an ambient air temperature range of -25 to +70°C and adheres to NEC Class 2 design specifications. The rated current is 20A, distributed as 6A for each output, with a derating to 0.025A/+60°C to +70°C for each channel. It features screw-clamp connections for secure installation and is part of the PISA11-series. The dimensions of the unit are W45mm x H75mm x D91mm, and it requires a supply voltage of 18Vdc to 30Vdc, with 24Vdc typical and 21.4Vdc required to turn on the outputs. The output voltage is adjustable between 24Vdc and 28Vdc. Protection functions include short-circuit protection with an 8ms shutdown time and current limitation with a 20.5A to 30A adjustable threshold. Power dissipation/losses are 2.4 W at 24V input with full output load, and the processing time for turn-on delay of output is 270 ms. The voltage drop across the unit is 124mV / 0.124 V. Electrical durability is rated at 203,000 hours at 40°C with 4x3A output and 573,000 hours at 25°C with 4x3A output.