WILKA 1400 K423 Cylinder Lock 55/55 Nickel Matt EN 1303 Class C Paracentric Key

Product Overview

The WILKA 1400 K423 55/55 nickel matt cylinder lock is a high-security euro profile cylinder for door installations in residential and commercial buildings requiring class C protection. Certified to EN 1303:2015 and WQ-ITB class C burglary resistance, it incorporates hardened steel and brass pins with paracentric profile to resist picking, drilling, and forced attacks. Each unit withstands over 100,000 operating cycles and is approved for use in fire-rated doors.

Distinctive for its EN 1303 highest code protection (level 6) and attack resistance (grade D), this model mitigates unauthorized key duplication by limiting key copying to authorized services with a security card. Building managers, facility security coordinators, and project procurement specialists seeking proven tamper-resistance and strict access control will find this cylinder particularly suited for high-security upgrades, bulk procurement, and OEM fire-rated door systems.

Key Features

• Class C burglary resistance ? certified to WQ-ITB C for enhanced security requirements


• EN 1303:2015 rating ? highest code protection level 6, attack resistance D, and corrosion resistance C


• Paracentric key profile ? increases manipulation resistance and prevents unauthorized opening


• Hardened pins and nickel coating ? steel and brass components fortified against drilling and wear


• 100,000-cycle tested ? maximum durability for intensive multi-user environments


• Fire-door approved ? suitable for integration with certified fire-rated doors


• Security card-controlled key duplication ? additional keys produced only at authorized centers

Technical Specifications

• Model: WILKA 1400 K423


• Length: 55/55 mm


• Finish: Nickel matt


• Standard: EN 1303:2015


• Burglary Resistance: Class C (WQ-ITB)


• Attack Resistance: D (EN 1303)


• Code Protection: Level 6 (EN 1303)


• Durability: 100,000 cycles


• Corrosion Resistance: C (EN 1303)


• Key Type: 3 cut keys included


• Profile: Paracentric


• Fire-door Approval: Yes


• Material: Hardened steel and brass, nickel-coated

Applications

Used in residential, office, and public sector buildings for main doors, emergency exits, and fire-rated accesses where class C burglary resistance is required. Compatible with fire-rated and smoke-control doors. Ideal for security upgrade projects, new construction, and bulk installation in hotels, hospitals, schools, and facility management OEM deployments demanding controlled key access.

Packaging & Shipping

Each cylinder is sealed in a tamper-evident box, including 3 paracentric cut keys, mounting screw, and security card for controlled duplication. Units are boxed individually for secure shipment; bulk orders available for project procurement.