





Timeguard NTT08 White 7Day Slimline Digital Immersion Heater Time Controller With 1 - 2Hr Boost, 1 Minute Switching & 28 ON + OFF Programs 16A
NTT08
Timeguard NTT08 White 7-Day Slimline Digital Immersion Heater Time Controller – Programmable with Boost, Override & Lockable Cover
The Timeguard NTT08 offers precise 7-day digital control for immersion heaters and similar loads. With daily programming, user-friendly interface, and secure operation features, it delivers reliable time switching for domestic and light commercial use.
- Weekly Programmable Control: Set up to 28 ON/OFF operations per week with 1-minute switching resolution for accurate timing.
- Boost & Override Features: Includes 1- and 2-hour boost, plus a self-cancelling manual override to next programme.
- Enhanced Safety Cover: Fitted with an easy-slide programme cover to protect settings from accidental changes.
- Clear Display & Indicators: Extra-large backlit screen with status LEDs for quick operation checks.
- Memory Backup: Rechargeable 720-hour memory ensures settings are retained during power interruptions.
Technical Specification
- Timer Mode: 7 Day
- Setting Type: Digital
- Operating Voltage: 230V AC
- Switch Rating: 16A Resistive (3.68kW), 4A Inductive
- Operating Temperature: 0°C to +40°C
✅ Rely on the Timeguard NTT08 for safe, efficient, and accurate weekly scheduling of your immersion heater or similar applications!

Ean Code | 5012483012369 |
Override Facility | Y |
Cable Size | 2.5 mm2 |
Reserve Power | 672 Hours |
Product | Time Switch |
Type | Immersion |
Ingress Protection | IP20 |
Colour | White |
Length | 121 mm |
Warranty | 3 Years |
Unit Weight | 0.186 kg |
Pole Configuration | 1NO |
Mounting | Surface |
Material | Polycarbonate |
Width | 74 mm |
Depth | 42 mm |
Current Rating | 16 A |
Qualifier | Slimline |
Delay Time Range | 1 Minute |
Display | LCD |
Ambient Temperature Range | 0|40 Degrees C |
Voltage Type | AC |
Number Of Channels | 1 |
Programming | 24hr/7 day |
Supply Voltage | 230 V |
Delivery Options:
- PRIORITY DELIVERY – Next Working Day (All items in stock and ordered before 3 pm) - £7.08 inc-VAT. (£5.90 ex-VAT)
- Orders Over £100 (before VAT): We offer free standard shipping on all orders shipped to UK mainland addresses
- Orders under £100 (before VAT): Our standard delivery fee to UK mainland addresses is £5.90 ex-VAT (£7.08 inc-VAT)
*Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £12 ex-VAT for all orders (Prices subject to change).
Items requiring specialist shipping:
- Orders containing Solar Panels, Batteries and/or Inverters: Up to 50 qty will be dispatched on a pallet and incur a £120 ex-VAT delivery charge**.
**Delivery charges to JE, GY, TR, BT, IM, IV, HS, KW, ZE and certain PA post codes are £180 ex-VAT (Prices subject to change).
Contact us if you have any further questions.