RET521 ABB | RET 521 Protect Transformer Protection Terminal COMMS Module Contact Side Minimum Switching Current:

Contact Side Minimum Switching Current: 10 mA

Rated output voltage: 24 V DC

1747-L551/B is an Allen-Bradley Rockwell SLC 5/05 Processor from the SLC 500 series

Form Factor: Series C

Dimensions (L × W × H): 38 cm × 17

RET521 ABB | RET 521 Protect Transformer Protection Terminal COMMS Module Contact Side Minimum Switching Current:Overview RET521 is an ABB transformer protection terminal designed for reliable fault protection and monitoring in power systems. Identification Product No.: RET521 Type: Transformer Protection Terminal Manufacturer: ABB Electromagnetic Emission Radiated range: 301000 MHz Conducted range: 0. 1530 MHz Insulation Tests Dielectric test: 2. 0 kV AC, 1 min Impulse voltage test: 5 kV, 1. 2 50 s, 0. 5 J Insulation resistance: > 100 M at 500 V DC General Data