3SE 판매점 - Limit Switches

3SE 반도체 회로 부품 판매점

Limit Switches

ETC

3SE International Limit Switches

Position Switches

3SE2 100 to 3SE3 170 / 3SE2 303 / 3SE2 404

Metal enclosure and open type

Features

• UL Listed, CSA Certified, CE.

Meets or exceeds most local,

national and international

standards.

• Standard (40 mm) or Wide (56

mm) die-cast aluminum

housing. Offers increased

wiring space, additional cable

entry options and corrosion

resistant housing

• Standard (40 mm) offerings

can accomodate both U.S.

29.4 [1.16] × 59.5 [2.34] and

DIN 30 [1.18] × 60 [2.36]

mounting dimensions

• Nine field interchangeable

operating heads (12

variations). Interchangeable

on both the standard (40 mm)

and wide (56 mm) styles.

Reduces inventory and

inventory costs

• Field replaceable, electrically

isolated, double bridge

contacts. Provides electrical

flexibility and ease of

maintenance

• Direct opening action (positive

opening) of the NC contact

• NEMA A600, Q600 contact

ratings

Application

The function of position switches

(limit switches) is to produce

electrical signals corresponding

www.DataSheet4U.ctoomthe positions of moving ma-

chinery.

The units are suitable for use in

virtually any climate.

Specifications

IEC 60 947-5-1.

The 3SE2 100 and 3SE2 120 po-

sition switches correspond to

Swiss regulations (SUVA). The

following actuator types have

been approved:

• Plunger

• Overtravel plunger

• Roller plunger

• Roller lever

• Angular roller lever

• Roller crank

–. B

–. C

–. D

–. E

–. F

–. GW

In addition, the open-type 3SE3

position switches and the 3SE3

switch inserts are also permit-

ted.

Safety position switches

The 3SE. position switches with

metal enclosures and snap-ac-

tion contacts as well as devices

with slow-action contacts can be

used as safety position switches

in control systems conforming to

EN 60 204-1, or IEC 60 204-1.

Construction

3SE position switches are avail-

able in die-cast standard (40

mm) or wide (50 mm) aluminum

enclosures or as open-type

units.

The 3SE2 120/3SE3 170 position

switches with standard enclo-

sure, overtravel plunger, roller

plunger, rod and roller crank ac-

tuators, conform to EN 50 041.

These specifications define the

most important mounting dimen-

sions, operating points, enclo-

sure types and actuator types.

Position switches have one or

three cable entries. The cable

entry has a 1/2”-NPT (3SE3) or

M20 x 1.5 (3SE2) threaded

metal wire opening. (see also

Accessories, Page 13/97)

Actuators

All actuators can be retro-fitted

or exchanged for another ver-

sion. They can also be reposi-

tioned every 90° so that the

switches can be operated from

any of the four sides.

• The position switches with

roller lever are approached

perpendicular to the plunger

axis and position switches with

angular roller lever are ap-

proached in parallel with the

plunger axis.

• The roller crank actuators, ad-

justable-length roller crank actu-

ators and rod actuators can be

operated from both sides and

be positioned from 10° to 10° on

the actuating spindle. The roll-

ers of the actuators are made

from wear resistant plastic.

• The wobble spring can be ap-

proached from any direction.

• The forked lever actuator has

two defined switching posi-

tions. The actuating element

causes changeover from one

position to the other. This actu-

ator is suitable for two-channel

operation.

The open-type 3SE. position

switches are available exclu-

sively with a plunger actuator.

Important:

The 3SE. position switches with

metal enclosure are not permit-

ted to be used as stops.

Contacts

The position switches (limit

switches) are available with

snap-action contacts, slow-ac-

tion contacts or slow-action

make-before-break contacts.

The 3SE. position switches with

a metal enclosure are available

with 2, 3 or 4 contacts.

The movable normally closed

and normally open switch con-

tacts are electrically isolated

from each other and are suitable

for switching voltages of differ-

ent potentials.

Contact reliability

The movable switch contacts

are double moving contacts.

This increases the contact reli-

ability even when the switch has

to be operated with low voltages

and currents, e. g. DC 5 V/1 mA.

The switching point of the snap

action contacts is independent

of the switching speed.

The contact chamber is covered

to prevent ingress of foreign

bodies.

Principle of operation

Positive opening

The opening contacts of the

switch are forced open mechan-

ically, positively-driven and reli-

ably by the plunger (positive-

opening).

In order to ensure this positive

opening, the position switch

must be actuated in such a way

that the nominal travel (Pages

13/100 to 13/112) and angle for

the positive opening are sub-

stantially exceeded.

Position switches that display

this symbol are suitable for use

in safety applications.

Siemens Energy & Automation, Inc.

Industrial Controls Catalog

13/85

3SE International Limit Switches

Position Switches

3SE2 100 to 3SE3 170 / 3SE2 303 / 3SE2 404

Metal enclosure and open type, 40 and 56 mm width

Technical data

s, u and U ratings (with metal enclosure)

• rated voltage

• continuous current

• switching capacity

- for 3SE. ...–8.

Rated insulation voltage Ui

Pollution degree

Short circuit protection1), DIAZED-fuse links

Rated operational voltage Ue

Conventional free-air thermal current Ith

Rated operational current Ie4)

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Mechanical endurance

Electrical endurance

• for AC-15 duty

• for DC-13 duty

Operating frequency

Operating accuracy

Operating point

Ambient temperature

Degree of protection DIN VDE 0470 and IEC 60 529

• with metal enclosure

• open-type

• electrical plug and socket connection

Enclosure cable entry

Conductor cross-sections

• solid

• finely stranded with end sleeve

Installation angle

Enclosure material

Protective conductor terminal

AC 600 V

10 A

Heavy Duty, A 600/Q 600

Heavy Duty, A 300/Q 30

500 V

Class 3

Utilization category gL/gG 6 A, quick response characteristic 10 A

AC 500 V, over 300 V only for equal potential (3SE21.0-and 35E3170-8..00)

AC 500 V, over AC 380 V only for equal potential

10 A

AC 40 to 60 Hz

Ue Ie / AC-12

Ie / AC-15

Ie / DC-12

Ie / DC-13

24 10

125 10

48 6

230 10

400 10

500 10

6 110 4

4 220 1

0.42)

3 440 0.5 0.23)

30 ×106 operating cycles (15 ×106 for 3SE3 2.0-8.)

10 ×106 operating cycles with 3RH11, 3RT10 16, 3RT10 17,

3RT10 24 to 3RT10 26 (3TH4, 3TF40 to 3TF43) contactors

0.5 ×106 operating cycles when interrupting Ie / AC-15 at 230 V

With DC the contact endurance depends not only on the breaking current but also on the

voltage, the circuit inductance and the speed of switching. No generally valid information

can be given.

6 ×10³ operating cycles per hour with 3RH11, 3RT10 16, 3RT10 17,

3RT10 24 to 3RT10 26 (3TH4, 3TF40 to 3TF43) contactors

0.05 mm for repeated switching, measured at the plunger of the switch block.

With snap-action contacts independent of contact wear constant throughout the life of the

switch

–30 to +85 °C (-22 to +185°F)

IP 67

IP 20 (terminals), IP 40 (switching chamber)

IP 65

1 × 1/2”-NPT (3SE3); 1 x M 20 × 1.5 (3SE212) or 3 x M20 x 1.5 (3SE2100, 2303, 2404)

2 × 2.5 mm² (2 × 14 AWG)

2 × 1.5 mm² (2 × 16 AWG)

Any

Metal (GD – AlSi 12)

M 3.5 inside enclosure

1) Without any welding acc. to DIN

VDE 0660 Part 200.

2) 3SE21.0 - and 3SE3170 - 8..00:

0.27A

3) 3SE21.0 - and 3SE3170 - 8..00:

0.10A

4) Refer to Section 19, General Infor-

mation for NEMA Control and

Circuit Ratings.

13/86

Siemens Energy & Automation, Inc.

Industrial Controls Catalog

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3SE 반도체 회로 부품 판매점

Limit Switches

국내 전력반도체 판매점

일반적인 전자부품 판매점

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