Overview
The Grasslin Digi 56-72 is a dual-channel digital time switch engineered for industrial and commercial automation applications requiring precise time-based control. This device delivers volt-free switching outputs suitable for controlling motors, heating elements, and loads up to 10A at 250V. With 56 selectable timing combinations per channel and day grouping capability that expands options to 784 program variations, the Digi 56-72 provides flexible scheduling for complex operational requirements.
Key Features
- 2-channel digital timer with independent programming per channel
- Volt-free output contacts rated 10A/250V for safe load isolation
- 56 selections available per channel; day grouping expands to 784 total variations
- One-minute programming accuracy for precise timing control
- 100-hour battery reserve maintains programming and time display during power loss
- Flush or surface mounting for panel and base installation
- Digital display with intuitive keypad programming
Technical Specifications
- Model: Grasslin Digi 56-72
- Channels: 2 (independent programming)
- Output Type: Volt-free (switch contact)
- Output Rating: 10A / 250V AC per channel
- Programming Selections: 56 per channel (784 with day grouping)
- Programming Accuracy: ±1 minute
- Battery Reserve: 100 hours (time and program retention)
- Mounting: Flush or surface mount compatible
- Display: Digital LCD
- Operating Temperature: 0 to 45°C (typical)
Typical Applications
- HVAC scheduling and building automation
- Industrial equipment start/stop control on daily or weekly cycles
- Pump and motor starting sequences in manufacturing processes
- Lighting control and occupancy-based load management
- Water heater and thermal load cycling in commercial facilities
- Process automation requiring multi-channel independent timing
Compatibility & Replacements
Compatible With
- Flush and surface-mounted DIN rail installations
- Standard industrial control enclosures (DIN 43700 footprint)
- 120V and 240V AC control systems
- Volt-free relay logic circuits and PLC input modules
- Building management systems requiring basic time-switch integration
Replaces / Drop-In Replacement For
- Grasslin Digi 56-72/1 (1-channel variant)
- Grasslin Digi 56-72/2-L (low-cost 2-channel configuration)
- Older Grasslin mechanical time switches in 56-series family
Works With
- Industrial control relays and contactors
- Programmable logic controllers (PLC) input modules
- Building automation systems requiring time-based triggering
- Standard electrical relay logic circuits
- AC motor starters and soft-start devices via volt-free contact closure
