Hardware reference guide

I/O Modules
35013379 02 October 2007 699
Note:
1. When switching DC voltages, it is recommended that the source be connected
to the common pin and the load be connected to the N.O. or N.C. contact.
2. For 125 Vdc inductive loads, external clamping is recommended to extend relay
contact life (1N 4004 or equivalent).
3. N / C = Not Connected. N.O. = Normally Open. N.C. - Normally Closed.
This document provided by Barr-Thorp Electric Co., Inc. 800-473-9123 www.barr-thorp.com