Gerda E1 36g/28 Cylinder Lock Insert with Knob Brass EN 1303 Class C

Product Overview

The Gerda E1 36g/28 cylinder lock insert with knob is designed for use with mortise locks in internal and external doors. It is certified according to PN-EN 1303:2007, offering high durability (minimum 100,000 cycles) and the highest corrosion resistance (Class C). The product is suitable for installation in fire-rated and smoke-control doors and operates reliably in temperatures from -20°C to +80°C.

A key differentiator for this model is the integrated knob, which allows for quick and easy interior locking or unlocking without the need for a key on one side. This feature simplifies emergency egress and enhances user convenience for commercial or public buildings with regular occupant traffic. Recommended especially for procurement in apartment complexes, public sector buildings, or hospitality projects where keyless interior operation is required.

Key Features

• Certified to PN-EN 1303:2007 ? meets stringent European standards for cylinder locks


• Integrated knob ? enables keyless operation from the inside, improving egress safety


• Durability ? tested for a minimum of 100,000 operating cycles


• Corrosion resistance Class C ? suitable for high-humidity or aggressive environments


• Temperature range -20°C to +80°C ? can be used in both cold and hot climate zones


• Compatible with fire-rated and smoke-control doors ? enhances safety compliance


• Supplied with 3 milled keys ? multiple users supported without duplication

Technical Specifications

• Type: Euro profile cylinder with knob


• Certification: PN-EN 1303:2007 1 6 0 1 0 C 2 0


• Durability: ?100,000 cycles


• Corrosion Resistance: Class C (highest)


• Temperature Range: -20°C to +80°C


• Lock Insert Length: 36g/28 mm


• Accessories Included: 3 milled keys, mounting screw


• Application: Mortise locks, fire and smoke barrier doors


• Finish: Brass

Applications

Intended for use in residential and commercial buildings, including apartment blocks, hotels, offices, and public facilities. Suitable for installation in fire-rated and smoke-proof doors where certified, durable, and corrosion-resistant cylinder locks are required. Appropriate for bulk procurement in new construction, renovations, or door hardware upgrades involving mortise locks with interior knob access.

Packaging & Shipping

Each unit is individually boxed in aesthetic retail packaging and includes the cylinder, integrated knob, three milled keys, a mounting screw, and installation instructions. Ready for direct sale or bulk shipment.