N125

N 125/21 power supply units, integrated reactor, 640 mA, additional output without reactor, 29 V DC

The power supply unit N 125 provides the system power necessary for the instabus EIB. The connection to the bus line is established by clicking the device onto the
DIN-rail (with a data rail installed) and/or via the bus connection block located on the front side. If the power supply N 125 is installed the bus connector module REG 191 is not necessary (also for other DIN-rail devices connected to the same data rail) because the bus voltage is carried from the bus connection block to the
data rail.
The integrated choke prevents the data telegrams from short-circuiting on the bus line. When the built-in reset switch is operated (operation > 20s), the bus devices are returned to their initial state.

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