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Electric Slimline Deadlocking Bolt DB25 Electric Slimline Deadlocking Bolt DB25 Electric Slimline Deadlocking Bolt DB25 Electric Slimline Deadlocking Bolt DB25 Electric Slimline Deadlocking Bolt DB25
DB25 Electric Slimline Deadlocking Bol

Electric Slimline Deadlocking Bolt DB25

The Alpro DB25 electric deadlocking bolt incorporates the latest design innovations to be applied to the manufacture of a transverse action deadlocking bolt. The slimline design enables fixing into narrow sections whilst an advanced microprocessor module provides power reduction allowing for continuous operation without heat generation as well as automatic voltage regulation, dual monitoring and access control features.

Features include

  • High Physical Security
  • Robust Construction
  • Versatile Installation
  • Dual Monitoring
  • 5 Year Guarantee

  • Specification
  • Order info
  • Documents
  • FAQs


High Physical Security
Holding force 1,000kg - automatic deadlocking
Bolt throw 16mm

Robust Construction
All stainless steel bolt of 12.7mm diameter,
linkages and springs. 3mm stainless steel faceplate and strike plates with fully enclosed mechanism.

Versatile Installation
Designed to provide concealed high security locking on any single or double action, hinged or sliding door in timber or metal for vertical or horizontal mounting.

Slimline Dimensions
210mm(L) x 25mm(W) x 42mm(D)
Back box 164mm(L) x 22mm(W) x 39mm(D)


Multiple Voltage Input
Any voltage from 12v DC -10% to 24v DC +15%. Complete with built in transient and reverse polarity protection and continuously rated solenoid.

Low Current Consumption
Volts Current - Activate Current - Hold (after 200ms)
12vDC 1100mA 210mA
24vDC 1000mA 90mA

Dual Monitoring
Bolt and Door position switches

Stainless steel surface mount kit


Built-in Access Control Module

Selectable unlock period - a field selector timer once the bolt is signalled to unlock. This enables traffic exiting 0, 3, 6 or 9 seconds in which to open the door before it automatically locks. See Anti-Tailgate.

Multiple auto relock function - when relocking the bolt makes 9 locking attempts over 18 seconds. Change in the Bolt Position Switch status indicates that the door has been locked.  Fail open/PTL models only.

Multiple unlock function - in fail secure/PTO mode 5 attempts to unlock door at 2 seconds intervals.

Anti-Tailgate - once the door has been pushed open and closed during the chosen unlock period, the bolt will immediately relock.


Order info

12-24vDC slimline deadlocking bolt - 25mm faceplateFail open/PTLDB25 PTLOCK
12-24vDC slimline deadlocking bolt - 25mm faceplateFail secure/PTODB25 PTOPEN
Stainless steel surface mounting kit for DB25DB25/SMH-KIT




Is there a charge for delivery?

Carriage and packing are included in orders over £250.00. A charge of £10.00 is made on lower value orders to cover carriage, packing and insurance. For deliveries to Ireland please speak to the office for pricing.

What guarantees does Alpro give?

6 years for AL110/AL150/AL2000 series electric strikes
5 years for EMS1200 shearlocks/EB250 solenoid bolts/DB25 deadlocking bolts
3 years for EB1001 &EB501 electric bolts/door hardware

Do you have any information on CE Marking or CE Marking of Doorsets?

Please refer to our technical section under Standards.


Highlighted Video

EL900 ANSI Electric Strike - Simple Fail Safe - Fail Secure Changeover

Technical Support