ATC 405 Series Timer 405A500F1K Automatic Timing Controls 10A 120-250VAC

ATC 405 Series Timer 405A500F1K Automatic Timing Controls 10A 120-250VAC

The ATC Series 405 is a panel-mount plug-in industrial timer relay made by Automatic Timing & Controls (ATC). It mounts into a standard octal-base socket and is designed for machine control, process automation, and industrial timing applications where repeatable relay switching is required on a timed cycle. The unit carries UL, CSA, CE, and FM approvals, indicating it was designed and certified for use in demanding industrial environments.

Specifications & What's Included

• Model: 405A500F1K (ATC Series 405 Timer)
• Contact rating (AC): 10A at 125–250VAC
• Contact rating (DC): 10A at 30VDC
• Motor load rating: 1/8 HP at 120VAC
• Connector: 8-pin octal plug-in base (pins visible on rear)
• Front panel: large circular timing adjustment dial; red indicator LED
• Certifications: UL Listed, CSA Certified, CE Marked, FM Approved
• Form factor: panel-mount plug-in module
• Unit only — no socket base or accessories included

Applications

The ATC Series 405 timer is a classic plug-in industrial timer relay widely used in factory automation, machine tool control, conveyor systems, packaging equipment, and process control panels. Timers of this type provide on-delay, off-delay, or interval timing functions to sequence machine operations — for example, controlling the duration of a press cycle, a conveyor dwell, or a pneumatic actuator hold. The plug-in octal-base design allows for fast field replacement without rewiring. ATC has manufactured industrial timing relays since the 1960s, and the Series 405 has been a workhorse product in North American industrial control panels for decades. These units remain in active use in legacy machine installations and are commonly sought as replacement parts for existing panel builds.