GERDA ZW 550 Mortise Auxiliary Lock 3-Bolt Class 7/C Anti-Drill Silver PN-EN 12209

Product Overview

The GERDA ZW 550 cylinder lock, certified by the Institute of Precision Mechanics, is a mortise design with three steel bolts, intended for installation as an auxiliary security lock in anti-burglary entrance doors. With a PN-EN 12209:2016-04 security class 7/C certification, this lock targets residential and commercial door manufacturers and installers requiring enhanced burglary resistance and durability for doors up to 100 kg.

What differentiates the ZW 550 is its integrated hardened anti-drill shield, an important feature for B2B buyers dealing with high-risk entry points who require documented protection against common attack methods. This makes it an effective solution for projects demanding the highest anti-intrusion certification, such as security door production and property management retrofitting in multi-family or commercial buildings.

Key Features

• Three 12 mm steel bolts ? robust tri-bolt locking system provides strengthened burglary resistance


• Security class 7/C ? highest classification per PN-EN 12209:2016-04 for auxiliary locks


• Hardened anti-drill shield ? internal protection element safeguards cylinder area from drilling attacks


• Endurance: over 200,000 cycles ? certified for high-traffic and long service life (tested at 50N latch load)


• Galvanized silver finish ? corrosion-resistant for extended durability in harsh environments


• 50 mm backset ? standard dimension supports compatibility with most external and internal doors


• Universal L/R mortise design ? suitable for right or left-handed door installation

Technical Specifications

• Lock Type: Mortise auxiliary lock


• Bolt Count: 3


• Bolt Diameter: 12 mm


• Security Classification: Class 7/C (PN-EN 12209:2016-04)


• Certification: Institute of Precision Mechanics


• Durability: 200,000 cycles (50N latch load)


• Backset (cylinder axis to faceplate): 50 mm


• Maximum Door Weight: 100 kg


• Finish: Silver, galvanized


• Hardened Anti-drill Shield: Yes


• Handing: Universal L/R


• Front Plate: Steel, screw-fixed

Applications

Designed for anti-burglary entrance doors in residential, commercial, and public sector buildings. Suitable for use as an auxiliary security lock in heavy-duty external and internal doors up to 100 kg, including retrofitting in existing door assemblies and integration into OEM security door manufacturing. Recommended where certified break-in resistance and long-term reliability are project requirements.

Packaging & Shipping

Standard export packaging. Set includes lock body, flat strike plate, mounting screws, and installation instructions.