CRYDOM - PR-4R - I/O Mounting board.

CRYDOM - PB-4 - I/O Module for Standard I/O Modules, 4 Channel Screw Terminals. • Screw terminal barrier block for logic connections • Screw terminal barrier block for load connections • Resident pull-up resistors • 5 amp field-replaceable fuses (LITTELFUSE #251005 or equivalent) • LEDs indicate logic status • All even-numbered logic connections are logic ground • Input and output modules accepted interchangeably • Operate with 5, 15 or 24 volt logic supplies • Captive-screw retaining system for standard-size modulesI/O Mounting board. For standard I/O module relays. Dimensions: 4.5” X 3.5” X 2.2” High (wiith Modules Mounted) More info: http://www.crydom.com/en/products/catalog/p_b4.pdf