KUHSE Fire door catches

Product catalog summary

Overview
This document provides technical specifications and design details for two types of fire door catches produced by Alfred Kuhse GmbH: Type FT65 and Type FT85S. Both types are designed for high holding force and are used in fire safety applications.

Type FT65
Design: The FT65 is a compact electromagnetic door catch with a high holding force. It includes an armature plate that must be mounted on the door.
Technical Specifications:

Power Consumption: Approximately 9.1 W
Rated Voltage: Preferably 24 V DC
Duty Cycle: 100%
Adhesive Force: 1400 N at 0.0 mm air gap, 700 N at 0.1 mm air gap
Degree of Protection: IP 55
Insulation Class: B
Total Weight: Door Catch 1.3 kg, Armature Plate 0.12 kg

Coils for other voltages are available at an extra cost, and different voltages may affect the magnetic force.

Type FT85S
Design: The FT85S includes an armature plate connected to a bell-shaped rubber-metal part, which is mounted on the fire door. It is manufactured according to the standards of several classification societies, including Det Norske Veritas and Lloyd's Register of Shipping.
Technical Specifications:

Power Consumption: Approximately 3 W
Rated Voltage: Preferably 24 V DC
Duty Cycle: 100%
Adhesive Force: 850 N at 0.0 mm air gap, 700 N at 0.1 mm air gap
Degree of Protection: IP 55
Insulation Class: B
Total Weight: Door Catch 2.1 kg, Armature Plate 0.45 kg

Similar to the FT65, coils for other voltages are available at an extra cost, and different voltages may affect the magnetic force.

Conclusion
Both FT65 and FT85S models are designed for robust performance in fire safety applications, with specific technical parameters and compliance with industry standards. The choice between the two depends on the specific application requirements and installation conditions.

Catalog excerpts

7.1 Alfred Kuhse GmbH Tel.: +49 (0)4171 / 798-0 www.kuhse.de Technische Änderungen vorbehalten An der Kleinbahn 39, 21423 Winsen Fax: +49 (0)4171 / 798-188 Stand / State: 06/2010 Subject to technical changes Feuertürmagnete Fire door catches Typenreihe FT65 Type Group FT65 Bauart Magne te der Reihe FT 65 sind sehr kleine und kompakte Türhaltemagnete mit sehr hoher Haltekraft. Sie werden mit einer Ankerplatte (A) geliefert. Die Ankerplatte wird an der Tür montiert. Design Electro-magnetic door catches of type FT 65 are very small and compact solenoids with a very high holding force. Scope of delivery includes an armature plate (A). The armature plate has to be mounted on the door. FT 65

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7.2 Alfred Kuhse GmbH Tel.: +49 (0)4171 / 798-0 www.kuhse.de Technische Änderungen vorbehalten An der Kleinbahn 39, 21423 Winsen Fax: +49 (0)4171 / 798-188 Stand / State: 06/2010 Subject to technical changes Spule:/ Coil Leistungsaufnahme / Power consumption: ca. / approx. 9,1 W Nennspannung / Rated Voltage: Vorzugsweise: 24 V DC 1) / Preferably: 24 V DC 1) ED / Duty Cycle: 100 % Haltekraft bei Luftspalt:/ Adhesive Force with air gap: 0,0 mm: ca. / approx. 1400 N 0,1 mm: ca. / approx. 700 N Schutzart nach DIN 40 050 / Degree of Protection(acc. DIN 40 050): IP 55 Isolierstoffklasse / Insulation...

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7.3 Alfred Kuhse GmbH Tel.: +49 (0)4171 / 798-0 www.kuhse.de Technische Änderungen vorbehalten An der Kleinbahn 39, 21423 Winsen Fax: +49 (0)4171 / 798-188 Stand / State: 06/2010 Subject to technical changes Feuertürmagnete Fire door catches Typenreihe FT85S Type Group FT85S Bauart Magne te der Reihe FT 85 S werden mit einer Ankerscheibe (A) geliefert, die an einem glockenförmigen, abreißfesten Schwing metall (S) befestigt ist. Das Schwingmetall wird an der Feuer schutz tür befestigt. Ausführungen Die Feuertürmagnete der Reihe FT 85 S sind nach den Richtlinien der folgenden Klassifi kationsgesellschaften...

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7.4 Alfred Kuhse GmbH Tel.: +49 (0)4171 / 798-0 www.kuhse.de Technische Änderungen vorbehalten An der Kleinbahn 39, 21423 Winsen Fax: +49 (0)4171 / 798-188 Stand / State: 06/2010 Subject to technical changes Technische Daten Technical Data Spule:/ Coil Leistungsaufnahme / Power consumption: ca. / approx. 3 W Nennspannung / Rated Voltage: Vorzugsweise: 24 V DC 1) / Preferably: 24 V DC 1) ED / Duty Cycle: 100 % Haltekraft bei Luftspalt:/ Adhesive Force with air gap: 0,0 mm: ca. / approx. 850 N 0,1 mm: ca. / approx. 700 N Schutzart nach DIN 40 050 / Degree of Protection(acc. DIN 40 050): IP 55 Isolierstoffklasse...

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