Gerda E1 50g/35 Cylinder Brass Knob-Type Fire Rated PN-EN 1303:2007 Class C

Product Overview

The Gerda E1 50g/35 knob-type cylinder insert is used in conjunction with mortise locks in both commercial and residential doors where certified fire and smoke protection is required. Certified to PN-EN 1303:2007 class 1 6 0 1 0 C 2 0, this cylinder offers at least 100,000 cycles of mechanical durability and maintains high resistance to corrosion, rated class C, as well as temperature stability from -20°C to +80°C.

Distinct from standard cylinders, the E1 50g/35 features a built-in exterior knob, which facilitates emergency egress or rapid door opening in high-traffic environments and reduces the risk of operator error when quick access is required. This makes it particularly suitable for bulk procurement in public sector, hotel, and institutional projects where certified fire and smoke barrier compliance is non-negotiable.

Key Features

• Fire and smoke door approved ? suitable for installation in certified fire-rated and smoke-control doors


• Durability 100,000+ cycles ? meets PN-EN 1303:2007 endurance requirements for long-term performance


• Corrosion resistance class C ? optimal for use in humid or aggressive environments


• Temperature resistance -20°C to +80°C ? reliable function in all-season and unheated spaces


• Integrated knob ? allows keyless operation from one side, improving safety and accessibility


• Includes 3 profiled keys ? ready for immediate distribution to end users


• Aesthetic brass finish ? offers a durable and visually consistent appearance for high-traffic installations

Technical Specifications

• Cylinder Type: Knob-type (one-sided operation with knob)


• Standard: PN-EN 1303:2007 (1 6 0 1 0 C 2 0)


• Durability: 100,000+ cycles


• Corrosion Resistance: Class C


• Temperature Range: -20°C to +80°C


• Length: 50 mm (outside) / 35 mm (inside)


• Fire Door Approval: Yes


• Smoke Door Approval: Yes


• Keys Included: 3 profiled (machined-cut) keys


• Accessories Included: Mounting screw


• Finish: Brass

Applications

Designed for fire-rated and smoke-control doors in commercial, residential, and institutional buildings such as hotels, schools, healthcare facilities, and offices. Compatible with mortise locks according to European standards requiring PN-EN 1303:2007 compliance. Suitable for use in doors exposed to high humidity or temperature variation, and recommended for bulk installation or retrofit projects demanding both egress convenience (knob function) and life safety certification.

Packaging & Shipping

Supplied in aesthetic individual packaging, each unit includes the cylinder insert, three machined keys, a mounting screw, and installation instructions, suitable for retail or project distribution.