Description
The Littelfuse TDM120AL Digi-Set (D.O.M.) is a microcontroller-based digital time delay relay engineered for accurate, repeatable on-delay timing in demanding industrial and OEM environments. Operating at 120VAC, it uses intuitive DIP switch programming to dial in exact delay intervals — eliminating the drift and inconsistency associated with analog timing methods. Isolated DPDT output contacts provide reliable switching performance across a wide range of control loads, while the plug-in 8-pin octal base simplifies installation and field replacement without rewiring. Whether you’re sequencing pumps, controlling motors, managing HVAC staging, or coordinating industrial automation processes, the TDM120AL delivers the timing precision your system depends on.
Key Features
- Digital delay-on-make (on-delay) timing function for precise process control
- 120VAC operating voltage for compatibility with standard control circuits
- DIP switch-adjustable timing range for flexible, tool-free configuration
- DPDT (double-pole, double-throw) isolated output contacts for versatile load switching
- Plug-in 8-pin octal base for fast, straightforward installation and replacement
- Microcontroller-based timing ensures high accuracy and consistent repeatability
- Integrated LED status indicator provides at-a-glance timing confirmation
- Suited for HVAC systems, motor control, pump sequencing, and industrial automation
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