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The M-3908 Universal Contact Input Adapter will convert seven internally wetted status inputs of Beckwith
relays to be externally wetted. The input voltage is selectable: 250 V dc, 125 V dc, 48 V dc, 24 V dc or 12 V
dc. This selection is made through a series of jumpers (Table 1) on the printed circuit board. Each of the
externally wetted inputs will be isolated from all other externally wetted inputs.
- Converts seven internally wetted contacts to be compatible with Beckwith
M-34XX protective relays and M-4272 Motor Bus Transfer System contact
inputs.
- Operates with 12 V to 250 V dc wetting voltages.
- Provides two input terminals per contact input.
Terminal blocks are used for all connections to the device which includes two independent terminals per input
circuit.
The device will be panel-mounted. There is an inherant 1 ms delay from input to output operating time.
Sales and Service
For sales and service information
contact your local representative
or contact the factory:
E-mail: sales@beckwithelectric.com
Call (727) 544-2326
or Fax (727) 546-0121
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