Limit Switches FA - FT - FT1R - Safety - FCT - FCM - Astra Series

Finecorsa

Giovenzana limit switches are the best that the could offer in terms of technology and performance. They satisfy the most various needs by covering application fields in the automation sector, lifts and general machinery.

NC Contacts with positive opening and different contact combinations, quick switch, slow or overlapping.

 


 

 

Product lines:

FA series in aluminium IP66 (single and double cable gland input)

FT series in thermoplastic IP65 (single and double cable gland input)

FT1R series with Reset key IP65 (single and double cable gland input)

Safety series limit switches in thermoplastic IP65 (single and double input)

FCT series prewired in thermoplastic IP67 (with 2 m cable and vertical or side cable input)

FCM series prewired in metal IP67  (with 2 m cable and vertical or side cable input)

New universal Astra series IP65 (with fixing plate)

 


DOUBLE ISOLATION
II class materials, according to IEC 536 are realized with double isolation. This allows to double the isolation function through an added isolating separator, in order to eliminate the risks of an electric shock, avoiding the need of further protections.

POSITIVE OPENING
A control switch, with one or more opening contacts, owns the characteristics of positive opening when the commutator guarantees the complete opening of the contacts. A positive action has to exist for the part of the movement which separates the contacts, excluding the presence of resilient elements (e.g. springs) placed between the moving contacts and the spot in which the action force is applied. The concept of positive opening is not applicable to NO contacts. The control switches with positive opening can be equipped with contact elements, with indenpendent or conditioned activation. In order to use different contacts on the same control switch with positive opening it is necessary that these are electrically separated; in case they are not, only one contact can be used. Each control switch with positive opening must be marked indelibly, on the outer part, with the symbol ->

CONTACT ELEMENTS WITH INDEPENDENT ACTION (OR QUICK SWITCH)
The contact element, norm IEC947-5-1/EN 6094-5-1, is called like this for manual or automatic control circuits in which the movement velocity of the contact is essentially independent from the velocity of the actuator movement. Generally called “quick switch”, the electric behaviour of these contact elements is regular also with the presence of slow movements in the actuator. These contact elements have a releasing position which does not coincide with the actioning one (differential course)

CONTACT ELEMENTS WITH CONDITIONED ACTION (OR SLOW ACTIVATION))
The contact elements, norm IEC 947-5-1/EN 60947-5-1, is called like this for manual or automatic control circuits, in which the contact movement velocity depends on the velocity of the actuator movement. These contact elements have the activation and releasing coincidences position.

CONTACTS CONFIGURATION (ACCORDING TO IEC/EN60947-5-1)
Contact elements with 4 terminals have to be indelibly marked with Za or Zb symbols, as shown.

CATEGORY OF USE
AC-15: commuting electromagnetic loads in alternated current (≥720VA).
DC-13: commuting electromagnetic loads in continuous current (≥69VA).

TERMINALS
Limit switches with metal case must have an indelibly marked anchoring for the ground conductor, positioned inside the same box near the cable input.

Application field:

Position limit switches are projected specifically for overhead travelling cranes control, pulleys and industrial operative machines. They are auxiliary controls, so they intervene on the car engine through a power interface, such as a contact panel or a PLC.

 

THERMOPLASTIC-AND-DIE-CAST-ALUMINIUM-LIMIT-SWITCHES

Aluminium item
Protection IP66
Cable input M16x1,5
Positive opening
Different operators typologies
Contact elements with independent action (quick switch) or conditioned action (slow switch)
Categories of use: AC-15, DC-13

fa334

Aluminium item
Protection IP66
3 holes of cable input M16x1,5
Positive opening
Different operators typologies
Contact elements with independent action (quick switch) or conditioned action (slow switch)
Categories of use: AC-15, DC-13

FT1P33Z11

Thermoplastic item
Protection IP65
Double isolation
Cable input M16x1,5
Positive opening
Different operators typologies
Contact elements with independent action (quick switch) or conditioned action (slow switch)
Categories of use: AC-15, DC-13

ft241

Thermoplastic item
Protection IP65
Double isolation
2 holes of cable input M16x1,5
Apertura positiva
Positive opening
Different operators typologies
Contact elements with independent action (quick switch) or conditioned action (slow switch)
Category of use: AC-15, DC-13

FT1R33

Thermoplastic item
Reset key
Protection IP65
Double isolation
Cable input M16x1,5
Positive opening
Different operators typologies
Contact elements with independent action (quick switch) or conditioned action (slow switch)
Category of use: AC-15, DC-13

ST1K1

Safety limit switches are perfect for all dangerous parts protection in machines, case openings or barriers. Realized with various keys and controls typologies, with the head rotation possibility of 90°, or gradual of 360°, they adapt to the most various opening systems.

Safety switches, key controls
Thermoplastic item
Protection IP65
Double isolation
Cable input M16x1,5
Positive opening
Different operators typologies
Contact elements with independent action (quick switch) or conditioned action (slow switch)
Category of use: AC-15, DC-13

FCT2L02X11

Finecorsa precablati
Self-extinguishing thermoplastic item V0
Protection IP67
Double isolation
Cable PCV UL 5×0,75 mm
Cable output: vertical or horizontal
Cable length: 2 mt, or upon request
Category of use: AC-15, DC-13
Contacts 1NO+1NC with slow action
Different operators typologies

FCM2L07Z11

Prewired limit switch
Metal item
Protection IP67
Cable PCV UL 5×0,75 mm
Cable output: horizontal
Cable length: 2 mt or upon request
Category of use: AC-15, DC-13
Contacts 1NO+1NC with quick switch
Different operators typologies

AFT2T38X11

Position limit switches
1NO+1NC overlapping and non-overlapping slow opening
Thermoplastic item
Protection IP65
Double isolation
2 holes of cable input M16x1,5
Positive opening

icon_pdf

ITAPagina Catalogo
ENGCatalogue Page

Web Agency a San Marino e Rimini
Professional Digital Marketing Agency
TOP

Utilizzando il sito, accetti l'utilizzo dei cookie da parte nostra. maggiori informazioni

Questo sito utilizza i cookie per fonire la migliore esperienza di navigazione possibile. Continuando a utilizzare questo sito senza modificare le impostazioni dei cookie o clicchi su "Accetta" permetti al loro utilizzo.

Chiudi