Gerda E1 35g/50 Euro Cylinder Thumbturn Brass PN-EN 1303:2007 Class C Fire Door

Product Overview

The Gerda E1 35g/50 Euro profile cylinder with thumbturn is designed for integration with mortise locks in both residential and commercial buildings. Certified according to PN-EN 1303:2007, it is rated for fire-resistant and smoke-control doors and delivers a minimum operational life of 100,000 cycles. The brass construction and corrosion resistance class C (highest) ensure stability in harsh or variable indoor environments from -20°C to +80°C.

The presence of a built-in thumbturn (gałka) on one side differentiates this cylinder from basic double-ended inserts, enhancing user convenience and safety, especially for doors requiring quick egress or frequent locking from inside without a key. Security facility managers and institutional buyers handling multi-unit procurement or fire-door compliance projects will find this model particularly suited for reliable, code-compliant installations.

Key Features

• Built-in thumbturn (knob) ? enables keyless locking/unlocking from inside for user safety and convenience


• Tested durability ? rated for at least 100,000 operational cycles per PN-EN 1303:2007 standard


• Corrosion resistance ? highest Class C, performs in demanding indoor conditions


• Wide temperature tolerance ? operational from -20°C to +80°C for unheated or temperature-variable spaces


• Approved for fire and smoke doors ? suitable for fire-rated and smoke-control door assemblies


• Supplied with three milled keys ? supports immediate user distribution and replacement logistics


• Brass body ? durable and corrosion-resistant material for long-term performance

Technical Specifications

• Cylinder Type: Euro profile with thumbturn


• Size: 35g/50 mm


• Material: Brass


• Temperature Range: -20°C to +80°C


• Corrosion Resistance: Class C (highest)


• Durability: ?100,000 cycles


• Certification: PN-EN 1303:2007


• Application: Fire-rated and smoke-control doors


• Included Keys: 3 milled keys

Applications

Intended for use on internal and external doors in residential, hotel, institutional, and commercial premises. Certified for installation in fire-rated and smoke-control doors as required by building codes, making it well-suited for multi-family buildings, offices, hospitals, schools, and public facilities. Recommended for projects where thumbturn operation is required for rapid egress or frequent internal locking without a key.

Packaging & Shipping

Each unit is packed in aesthetic retail packaging and includes the cylinder with thumbturn, three milled keys, mounting screw, and basic instructions. Suitable for single-unit sales or bulk orders for facility outfitting.