Datasheet

ManualsBrandsPIZZATO ELETTRICA ManualsPush Actuated Switches & ButtonsMicroswitch 250 Vac 6 A IP65 momentary 10 pc(s)

General Catalog 2011-2012

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Microswitches for safety applications

All microswitches that have the symbol beside the code are with positive opening,

therefore suitable for safety applications.

These microswitches are provided with a rigid connection between push button and NC

contacts, which are opened by force through a strong/sturdy internal safety lever.

The positive opening has been realised in conformity with the standard IEC 60947-5-1,

enclosure K, therefore these microswitches are suitable for the installation for people’s

protection.

Contact block reliability

In the following table we refer to the typical microswitch contact structure (type A) normally used in the industry, compared with the innovative

solution that Pizzato Elettrica uses in new MK series microswitches: movable contact with single interruption and double contacts (type B).

As you can see from the table below, this last structure (type B) offers half of the contact resistance ( R) than the simple mobile contact (type

A) and a lower probability of failure ( fe).

In fact, deﬁned x the probability of a commutation failure of a single interruption, it results that in the type A the failure probability fe=x, in the

type B the probability fe= x

. This means that if in a certain situation the failure probability x is equal, for instance, to 1 x 10

-4

(1 failed interruption

every 10.000), we will have:

- in type A one failed commutation every 10.000

- in type B one failed commutation every 100.000.000

Microswitches of MK series have been developed in order to add new features to traditional and tested

microswitches of Pizzato Elettrica (cross-reference at page 7/50). These new products have been designed

with shapes and ﬁxing perfectly interchangeable with the previous ones and with various additional functions

useful to extend the application ﬁeld.

The main innovation of this series is the tripping device modern and evolved, with qualitative features higher

than solutions present on the market.

The electrical contact on new microswitch has been realized with higher reliability technology, thanks to the

double and redundant shape, and has the possibility to carry out operations with positive opening.

The housing of the new microswitch provides the possibility to seat gaskets in order to seal the device

against ﬁne dusts or liquids up to IP65 degree.

Fastening terminals of conductors are more practical and allow the ﬁxing of different diameter cables or

the possibility to choose different bends of faston contacts. For high quantity it’s possible to supply the

microswitch only with the contact NO or NC, in order to minimize purchase costs.

Introduction

Extended temperature range

On request, on new MK series are available the versions with extended temperature range. Differently from

standard MK microswitches with temperature range from +85 C° to -25 C°, these special versions can be

used in places where the ambient temperature changes from +85 C° to -40 °C.

They can be installed inside cold stores, sterilizers or other equipment with very low ambient temperature.

Special materials that have been used to realize these versions, maintain unchanged their features also in

these conditions, widening the installation possibilities.

Type

Figure Description

Contact

resistance R

Probability of

failure fe

Common

microswitch

COMMON

Contacts

with single

interruption

R=Rc fe=x

Pizzato

microswitch

MK series

COMMON

Contacts

with single

interruption and

double contacts

R=Rc/2 fe x

safety lever

Microswitches MK series

Summary of content (12 pages)

PAGE 1
2D Microswitches MK series Introduction Microswitches of MK series have been developed in order to add new features to traditional and tested microswitches of Pizzato Elettrica (cross-reference at page 7/50). These new products have been designed with shapes and fixing perfectly interchangeable with the previous ones and with various additional functions useful to extend the application field.
PAGE 2
D Protection degree IP65 By installing microswitches MK ••2••• with terminal covers VF MKC•22 or terminal covers VF MKC•23, it’s possible to obtain a microswitch fully dust proof and waterproof. Thanks to special rubber gaskets anti-oil, we achieve the protection degree IP65. For application with high presence of dirtiness, are available also versions with double gasket in the push button ( internal + external). ex. MK ••2•12 or MK ••2•13.
PAGE 3
2D Microswitches MK series WITH PLUNGER DIRECT ACTION D01 WITH LEVER DIRECT ACTION WITH LEVER INVERTED ACTION WITH LEVER BACK DIRECT ACTION D02 D03 D04 D30 D31 D32 D35 R30 R31 R32 R35 F30 F31 F32 D05 D06 D37 F35 D08 D40 D42 R40 R42 F40 F42 ACTUATORS product option accessory sold separately 1 1NO+1NC snap action 2 3 1NO snap action (on request) 1NC snap action (on request) V H F 6,3 mm vertical faston faston 6,3 mm right bending of 45° TERMINALS screw terminals wit
PAGE 4
2D D09 D10 D12 D13 external rubber gasket external rubber gasket D15 D17 D45 D46 D47 D53 D59 R45 R46 R47 R53 R59 F45 F46 F47 F53 F59 Code structure D18 D19 D49 R60 F49 Attention! The feasibility of a code number does not mean the effective availability of a product. Please contact our sales office.
PAGE 5
2D Microswitches MK series Technical data Housing Made of glass-reinforced polymer, self-extinguishing, shock-proof thermoplastic resin.
PAGE 6
2D Terminals outline dimension 7 19 6.3 6.3 19 19 19 19 6.4 6.4 19 19 12.7 12.7 6.3 6.3 Screw terminals V with plate 12.7 12.7 45° 6.3 6.3 Vertical faston H terminals 12.7 12.7 12 45° 6.3 12 14.3 8.5 9.7 19 6.3 10.8 12.2 7 6.3 6.3 faston terminals F, right bending 12.7 12.7 6.3 faston terminals G, left bending (on request) Note: H vertical faston terminals can be bent according to one’s installation requirements.
PAGE 7
2D Microswitches MK series 23.3 Ø 6.8 Ø 6.8 4N FS 0,5 mm PC 3N FR OC 2 mm 20 N FAP CD 0,05 mm CAP 2,2 mm Max and min. speed page 7/8 - type 1 MK V11D06 37.7 Max and min. speed page 7/8 - type 1 23.3 M 10 x0.75 9.7 17.4 4N 3N 20 N FS FR FAP 0,5 mm 5,5 mm 0,05 mm 2,2 mm 4N FS 0,5 mm PC 3N FR OC 5,5 mm 20 N FAP CD 0,05 mm CAP 2,2 mm Max and min. speed page 7/8 - type 1 MK V11D09 1NO+1NC 4.2 25.4 26.1 11.9 17.4 49.2 14 M12 x1 9.7 4.2x5 12.2 11.9 Ø 10.6 9.3 26.1 16.4 47.7 9.7 16.
PAGE 8
2D 3.6 12 25.4 17.4 4N FS 0,5 mm PC 3N. FR OC 5,5 mm 20 N FAP CD 0,05 mm CAP 2,2 mm Max and min. speed page 7/8 - type 2 MK V11D30 1NO+1NC R=26.2 FS FR 9 mm 10 mm 1,1 mm PC OC CD 1NO+1NC 0,65 N 0,5 N Max and min. speed page 7/8 - type 3 5 27.4 R= 54 13.7 9.7 29.5 32.9 17 0.9 23.3 17 29.7 17.4 5 0.9 12.2 11.9 49.2 37.1 49.2 9.7 4.2 11.9 12.2 29.7 11.9 38.4 28.7 13.7 17 26.1 9.7 16.4 4.2x5 4.2 25.4 11.9 MK V11D19 0.9 49.7 40 Ø 10.5 4.2x5 5 R= 63 23.6 23.
PAGE 9
2D Microswitches MK series It switch It does not switch 4.2 R= 38.2 11.9 12.2 17.4 MK V11D49 25.4 11.9 25.4 17.4 0,76 N 0,58 N FS FR MK V11D59 2,5 mm 4,5 mm 0,2 mm PC OC CD 1NO+1NC Max and min. speed page 7/8 - type 6 Microswitches with inverted action 10 pcs packs 5 11.9 25.4 17.4 49.2 MK V11R30 FS FR 4,4 mm 14 mm 1 mm PC OC CD 1NO+1NC 31 21.3 9.7 4.2x5 12.2 11.9 4.2 4.2 25.4 13.7 17 33.2 29.7 23.5 13.7 8.1 9.7 17 11.9 5 R= 26.2 R= 63 8.
PAGE 10
2D 4.2 11.9 43.6 23.8 13.7 17 9.7 25.4 FS FR 1,5 mm 5,5 mm 0,3 mm 17.4 1,7 N 1N MK V11R46 FS FR 3,5 mm 5,4 mm 0,2 mm PC OC CD 1NO+1NC 1,5 N 1,45 N Max and min. speed page 7/8 - type 7 It does not switch 4.2 R= 54 11.9 25.4 49.2 1NO+1NC 11.9 12.2 11.9 FS FR 1,7 mm 5,3 mm 0,3 mm PC OC CD 25.4 1,7 N 1N MK V11R53 43.7 29.7 17.4 FS FR 4,3 mm 11,6 mm 0,8 mm PC OC CD 1NO+1NC 0,8 N 0,4 N Max and min. speed page 7/8 - type 7 R= 39 4.2 9.5 12.2 11.9 49.2 17.4 Max and min.
PAGE 11
2D Microswitches MK series 0,85 N 0,65 N 9.5 8.4 9.7 4.2x5 12.2 11.9 17.4 25.4 1,3 N FS 1,1 mm PC 0,9 N FR OC 6,6 mm 6,9 N FAP CD 0,1 mm CAP 6,3 mm Max and min. speed page 7/8 - type 8 1NO+1NC 1NO+1NC 4.2 R= 44.1 46.8 35.7 4.2 9.7 12.2 11.9 25.4 12.2 11.9 49.2 PC OC CD 2,5 mm 11,5 mm 0,3 mm FS FR Max and min. speed page 7/8 - type 8 2/135 33.2 37.1 1NO+1NC 8.4 4.2x5 11.9 49.2 MK V11F53 4.2 29.7 17 13.7 25.4 17.4 1NO+1NC R= 23.8 9.7 4.2 11.9 12.2 11.
PAGE 12
2D Protections (terminals covers) 10 pcs packs 17.4 17.4 8.2 52.4 8.2 52.4 16 9 38.6 32 25.1 16 18.5 9 13 13 65.4 65.4 Protection terminal cover for screw terminals snap-in assembled and with wire trap cable gland. It allows the installation of more switches side by side. Protection terminal cover for vertical faston terminals snap-in assembled and with wire trap cable gland. It allows the installation of more switches side by side.