Modules monitor normally-closed emergency stop switch circuits or safety interlock switch circuits for a contact failure or wiring fault. ES-UA-5A/ES-VA-5A & ES-TN-1H.. Modules ES-TN-14H5/ES-TN-14H6 Modules ES-TA-3F1 Module ES-TA-3D1 Module ES-FA-9AA/ES-FA-11AA & GM-FA-10J Modules ES-FA-6G Module Product Highlights: Modules monitor up to 10 external devices for contact failure or wiring faults. Module goes into lockout mode if it detects a fault. Available voltages include 24V dc; 24V ac/dc; 115V ac or 12 to 24V dc; or 230V ac or 12 to 24V ac/dc. Modules monitor positive-opening E-stop and interlock switches. Models are available with 2 to 4 normally open safety outputs, depending on module. Safety outputs are rated 4 or 6 amps, depending on module. Non-safety auxiliary outputs are available on most modules. Modules are available with an adjustable output delay of 0-20 or 0-200 seconds, depending on module. Two modules allow central monitoring and control over a DeviceNet control network. Ratings are NEMA 1 and at least IEC IP20. Housings are rugged polycarbonate. Bright red and green LED indicators show module's operating status.