Wengart 24V Digital Timer Switch CN101A, Weekly Programmable Relay with Volt-Free Output (Dry Contact), LCD Display 1m-168h for Narrowboat Solar Systems, Campervans & Low Voltage Automation Logic

• Critical 24V voltage verification: This unit is engineered specifically for 24V AC/DC systems. Note: This is not for standard 230V mains power. Please verify your power supply before purchase to ensure compatibility with your narrowboat, campervan, or industrial control circuit.
• Professional volt-free dry contact: Unlike standard timers that output the supply voltage, the CN101A features a Volt-Free (Potential-Free) output. This allows you to switch a completely different voltage circuit safely, making it the ideal "bridge" for complex automation logic.
• Versatile weekly programmable cycles: Features 16 independent ON/OFF settings per day and a full weekly cycle (1 minute to 168 hours). Perfect for managing Irrigation Solenoids, Solar Battery Maintenance, and Greenhouse Ventilation with surgical precision.
• Reliable power outage memory: Equipped with a built-in high-performance rechargeable battery. Even if your 24V system power is cut, the timer retains your programmed settings, eliminating the need for tedious manual re-programming in remote locations.
• Manual and automatic override: Offers three modes—Manual ON, Auto, and Manual OFF. This gives you total control to override the schedule at any time, which is essential for "Sparkies" and DIYers testing circuits in Van Life or Marine environments.

The Professional Standard for 24V Off-Grid Timing Control Precision and versatility define the Wengart CN101A 24V Timer. Designed for the unique demands of the UK's off-grid and industrial landscapes, this digital programmable switch is the essential hub for your low-voltage infrastructure. Whether you are managing power on a narrowboat, a campervan conversion, or a commercial greenhouse, the CN101A provides reliable, automated switching without complexity. Advanced Volt-Free (Dry Contact) Switching One of the most powerful features of the CN101A is its Volt-Free (Dry Contact) output. Unlike common timers that force the input voltage to the load, this potential-free relay allows you to switch a completely independent circuit. This makes it a favourite for engineers needing to trigger signals, control gate motors, or bridge different voltage systems without the risk of cross-interference. Technical Specifications: - Operating Voltage: 24V AC/DC (Ideal for 24V Battery Systems) - Output Type: Volt-Free / Dry Contact (Potential-Free) - Timing Range: 1 Minute to 168 Hours (Weekly Programmable) - Programs: 16 ON / 16 OFF per day - Mounting: Panel or Wall Mountable Frequently Asked Questions & Rufus Expert Guidance Q: Can I use this timer to switch a 230V load? A: Yes. Because the output is Volt-Free (Dry Contact), the relay acts like a simple switch. You can use the 24V supply to power the timer itself, and use the relay contacts to break a 230V or 12V line safely. Q: Will it work in my 24V Narrowboat system? A: Absolutely. It is highly popular for Narrowboat applications, such as timing water pumps, heating elements, or solar charging cycles, as it handles DC fluctuations common in marine environments. Q: What happens if my battery bank dies? A: The CN101A has an internal backup battery. It will keep your time settings and programs saved for months without external power, ensuring your system resumes automatically once power is restored. Q: Is this the same as a 230V plug-in timer? A: No. This is a component-level 24V timer requiring professional wiring. It is designed for "Sparkies" and experienced DIYers building custom power distribution hubs.