High security deadbolt Technilock® L4
Fail-locked, with control latch
Product description
Electromechanical drop bolt for use in high security areas
Features of the fail-locked version:
The fail-locked version always keeps the door closed in case of a power failure. Here, the focus is on secure locking (security)
A secure closure is provided in the event of a power failure/fault
Very high locking pressure and high impact resistance
Static bolt load in accordance with DIN 18251 20,000N (destruction-proof)
Extended range of functions: Two additional functions ensure daily operations can continue in the event of power failure and breakdowns. Emergency locking also takes place in the event of a breakdown.
Holds the bolt of opened door unlocked even during power failure
The cylinder function can be used to lock and unlock manually. After manual locking, the bolt in fail-locked version cannot be unlocked via the actuation signal. Manual locking can only be cancelled by unlocking via the locking cylinder
Mechanical steering device
Direct activation by a fire alarm/smoke detection system is not possible
Overview of Advantages
- Reliable impact resistance
- Bolt side load breaking force of up to 20,000N
- 80 N bolt pre-load for fail-locked and fail-unlocked models always ensures reliable unlocking
- Status monitoring via programmable monitoring contacts, additional relay circuit board provides potential-free monitoring contact
- Programmable unlocking time
- Sequence control system for locking with mechanical and electrical query of the door status
- Integrated error log and undervoltage indicator make fault rectification easier. Malfunctions can be traced on site and quickly verified for repair purposes, with rapid error analysis, high available, short downtimes
- Integrated microprocessor control unit: no additional external control unit required
- Vertical installation possible in the frame or door leaf
- Horizontal installation possible in the frame top
- Control board with protective coating, enabling use in protected outdoor installation
- Compatible with the predecessor L3 series - simple exchange possible
Scope of delivery
- 1x Technilock®
Note
- Striking plate is not included in the scope of delivery.
| Input operating voltage | 24 V DC, stabilised |
| Rated operating voltage tolerance range | -10 % / +15 % |
| Rated current consumption | Impulse current: 4 A (0,5 sec); hold current: 0,25 A |
| Max. contact load capacity | 25 mA / 24V DC |
| Current consumption for operating voltage 24 V DC | 0.25 A |
| Current consumption for switch-on current 24 V DC | 4 mA |
| Max. bolt side load | 50000 N |
| Bolt side load breaking force | 20000 N |
| Bolt throw | 20 mm |
| Case depth | Backset + 17,5 mm |
| Operating temperature range | -20 °C to +60 °C |
| Distance between faceplate and striking plate | Min. 2 mm to max. 5,5 mm |
| Backset | 40 mm |
| Version | Fail-locked with control latch |
| Dimension housing | 305 x 24 x 54,5 mm (LxWxD) |
| Faceplate dimensions | 375 x 32 x 3 mm (LxWxD) |
| | Order number | Product |
|---|---|---|
 | 844L4SBL1----01 | Strike plate, model 844L4SBL Standard DIN Universal |
 | 844L4SBL2----04 | Strike plate, model 844L4SBL Standard, flanged 28 mm, DIN left |
 | 844L4SBL2----05 | Strike plate, model 844L4SBL Standard, flanged 28 mm, DIN right |
 | 844L4SBL3----01 | Strike plate, model 844L4SBL Adjustable, DIN Universal |
 | 844L4SBL4----04 | Strike plate, model 844L4SBL Adjustable, flanged 28 mm, DIN left |
| 844L4SBL4----05 | Strike plate, model 844L4SBL Adjustable, LAP 28 mm, DIN right |
 | 844L4SBLM----01 | Replacement Striking Plates L4-M4 Standard, M4-compatible dimensions, DIN universal |
 | 844L4SBLM3---01 | Replacement Striking Plates L4-M4 Adjustable, M4-compatible dimensions, DIN universal |
 | 844L4ZBD1----00 | Spacer plates, model 844L4ZBD1 Spacer plates |
 | 844L4RGK30---01 | Bolt case model 844L4RGK 30 mm backset, only for Technilock® L4 variant without follower |
| 844L4RGK35---01 | Bolt case model 844L4RGK 35 mm backset, only for Technilock® L4 variant without follower |
| 844L4RGK40---01 | Bolt case model 844L4RGK 40 mm backset, only for Technilock® L4 variant without follower |
| 844L4RGK60---01 | Bolt case model 844L4RGK 60 mm backset, only for Technilock® L4 variant without follower |
 | 844L4SBK-----01 | Strike plate box, model 844L4SBK Strike plate box, model 844L4SBK |
 | 844SX63-------- | Security Escutcheon Model 844SX63 With core drawback protector; for Eurocylinder; nickel-plated mat |
 | 844L4ZBP1----00 | Circuit board potential-free contact; compatible with M4; only for Technilock® L4 variant without follower |