E-Stop Safety Module, Input: Safety Input Switch: Dual-Channel (Contacts) Hookup: 10 - 20 MILAMP Steady State At 12 VDC (Note: Inputs Are Designed With A Brief Contact-Cleaning Current Of 100 MILAMP When Initially Closed), Single-Channel Hookup: 40 - 100 MILAMP At 24 VAC/DC Plus Or Minus 10 PCT, 50/