LocksOnline Compact Electro-Magnetic Shearlock (Monitored)
- From Only: £95.49 + VAT

This dual-monitored shearlock boasts a compact design (just 182 x 30mm overall), making it suitable for a wide variety of uses whilst still offering a phenomenal 1200kg of holding force (over 2600lbs) - a whopping 1.2 tonnes! Suitable for both aluminium and wooden door sets, these can be used on single and double-swing doors, and features... Read more »

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SL183 Compact Shearlock - 12/24v DC
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£95.49 + VAT
(£114.59 inc VAT) |
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This dual-monitored shearlock boasts a compact design (just 182 x 30mm overall), making it suitable for a wide variety of uses whilst still offering a phenomenal 1200kg of holding force (over 2600lbs) - a whopping 1.2 tonnes!
Suitable for both aluminium and wooden door sets, these can be used on single and double-swing doors, and features not only an adjustable time-delay feature for the operation (between 0.5 seconds and 25 seconds), but also offers an automatic re-locking facility so should the door fail to align correctly on the first locking attempt, it will re-attempt to lock up to a limit of 60 attempts.
In addition to these sought-after features, the lock also boasts multiple monitoring outputs - an LED lock status indicator (supplied), as well as a generic lock status output (NO/NC) and a door position output (NC).
Inside the box, you'll find the main electromagnetic side of the lock, the adjustable armature plate, fitting templates, some packing shims and adhesive buffer pads, a ~2ft fly lead with pre-terminated 10 pin connector, an LED status indicator (on a ~1ft fly lead), and all the necessary fixings. You're also supplied with a handy instruction booklet containing all the fitting and wiring information including fitting diagrams and wiring examples.
In terms of powering and wiring the shear lock, these will accept both 12v DC and 24v DC and the manufacturer recommends at least a 1Amp supply (at 12v DC) to power the lock. Please see the table below for a reference to each of the 10 cores within the fly lead:
Core Colour | Description |
Red | +12/24v DC |
Black | -12/24v DC (Ground) |
Orange | Status Indicator Output (connect blue lead from supplied LED) |
Brown | Status Indicator Output (connect black lead from supplied LED) |
White | N.O Lock Status Output |
Purple | N.C Lock Status Output |
Grey | COM Lock Status Output |
Yellow | N.C Door Position Output |
Green | COM Door Position Output |
Grey | (reserved) |
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Conforms to Standards | |
Guarantee | 1 Year |
Input Voltage | 12vDC / 24vDC |
Backup Battery | Up to 7Ah size |
Depth | 80mm |
Output Fuse Protection | Yes |
Tamper Protection | Yes |
Visual Fault Indicator | Yes, multi LED |
Manufacturer | Asec |
Finish | Anodised Aluminium |
Overall Length | 182mm, 250mm |
Overall Depth | 25mm |
Overall Width | 30mm |
Case Finish | White |
Current Consumption | ~900mA @ 12v DC (rush), ~220mA @ 12v DC (hold) |
Holding Force | 1200kg (2600lbs) |
Supply Voltage | 230V AC mains |
IP Rating | IP41 (front only) |
Output Voltage | 13.8 or 27.6V DC (12/24V DC) |
Output Current | 1 Amp |
Width | 230mm |
Height | 200mm |
Please note: The data shown includes that of all products listed on the page, including accessories.
Please double-check with us if you're unsure of any individual product specifications.