L&F Universal Electronic 3780 Locker Lock
Lowe & Fletcher (Platinum Partner)£38.90 (ex VAT)
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*3 to 4 Week Lead Times Apply on 24mm & Horizontal Lock Types.
**Black: Due End of April 2026.
The L&F 3780 is the ultimate electronic upgrade for any modern locker setup, delivering sleek design, reliable performance and total user convenience. With its intuitive keypad, clear display and robust electronic mechanism, it offers fast, secure access for both private and public locker use. The universal design fits a huge range of locker types, making retrofitting effortless. Built for busy workplaces, gyms, education and commercial environments, the 3780 provides long-lasting reliability with minimal maintenance. If you want a smooth, modern, user-friendly electronic lock that instantly elevates your locker system, the L&F 3780 is a top-tier choice.
- Standard Finish: Black, Silver or White
- Fixing Options: Vertical, Left or Right-Handed
- User Modes: Public Mode, Private Mode or RAS (Available on Request)
- User Codes: 8-Digit Master Code, 6-Digit Sub-Master Code, 4-Digit User Code
- Spindle Length: 20mm or 24mm
- Steel Override Key (2-Keys Supplied per 50 Locks)
- LED Indicator Lights
- Audible Keypad
- Battery Condition Indicator
- Auto Unlock Mode
- 2x AA Batteries (Included)
- Up to 50,000 Cycles per Pair or Batteries
- Slam Bolt
- Door Open Alarm
- Alternative Colours
- Pre-Programmed Modes and Codes
- Customised Logo
| Product Code | 3780 |
| Series | E0355 |
| Body Height | 136mm |
| Body Width | 37mm |
| Body Depth | 27mm |
| Cam Bar | 50mm with 5mm Crank |
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Digital Combination Lock CAD Files
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Digital Combination Lock Installation Instructions
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Digital Combination Lock Programming Instructions
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Digital Combination Locks General Maintenance
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Digital Combination Locks Public User Instructions
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Digital Combination Locks Public Mode User Guide Instruction Label
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Digital Combination Lock Technical Drawing
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Digital Combination Locks Battery Replacement Instructions
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Digital Combination Locks Private User Instructions
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Digital Combination Lock Escutcheon CAD Files
Change Master Code
Change the User Code using the Master Code
Change the User Code using the User Code
Check Battery Condition
Close Lock in 'Private' Mode
Close Lock in 'Public' Mode
Open Lock using the Master Code
Open Lock using the User Code
Set Lock to 'Private' Mode
Set Lock to 'Public' Mode
We’re committed to giving you the best value — every time. If you find a like-for-like quotation for the same product, we’ll beat it, simple as that. When you order from us, you’re not just getting a great price — you’re getting the peace of mind that comes with buying from the UK’s leading and most trusted locker services company. Quality products, expert support, and unbeatable value all in one place.
As well as supplying high-quality products, we also offer a professional, fully insured installation service to ensure everything is fitted correctly and works exactly as it should. Whether you’re planning a brand-new locker installation or looking to upgrade your existing lockers to a smart, keyless solution, our experienced team can handle the entire process from start to finish. We work with a wide range of environments, including schools, leisure centres, workplaces, and public venues, taking care to minimise disruption while delivering a clean, secure, and reliable installation. From initial advice and on-site fitting through to final checks and handover, you can trust us to get it done properly and to a high standard.
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“
Once again I have received a fantastic service from Lockertek. I was in need of a new safe and very quickly! I was given great advice by the lady in the office Nicola, who was very knowledgeable and polite and the delivery was very fast. Most certainly recommend this company and with definitely be using them again.
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