INTRODUCTION

SALIENT FEATURES

DESIGN

CHOICE OF OPERATING KNOBS

MOUNTING

TEKMEC make Rotary Switches are designed and engineered for a

new level of switching efficiency and elegant looks. These

are manufactured in accordance with the latest engineering

practices and emerging out with the largest range of

Rotary Switches. Cam Operated Rotary Switches have versatile

mounting options to suit any kind of application. These switches

are suitable for AC as well as DC applications upto 200Amps.

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Rugged Construction.AestheticDesign.TemperatureWithstand CapabilityEnhancedLife.

On-site adjustment forMountingPlate.

.

SelectionforOperating Knob.

TEKMEC Switches have different switching stages with

double pair of contacts. Each pair consists of two fixed contact plates

and one movable contact plate. The rotation is provided by

movement of slide. The slide rests on a CAM disc. This CAM

disk has grooves according to the sequential operation

rotated by switch handle through a hexagonal shaft.

Operating device can be selected from a wide range of knobs

and handle, depending on operational convenience.

• • •

• • •

PistolGrip LeverType LongHandleBallGrip TearDrop Flag Handle

Knob indicates switching position of the switch. A variety of

elegant colour combinations for plate and knob are offered

to suit the panel and other instruments.

The switches can be mounted on Panel Flush or base mounted.

wide range of mounting combinations are available which can

be supplied on request.

Lock & Key Door Interlock Key Operated Padlock

Front Plate & Knob are available in different type & sizes.

• • • •

ENCLOSURE

Aluminium enclosure for Max 2 Switching Operation

Standard Plastic Front and Knob.

Plastic enclosure for Max 2 switching operations.

Sheet Metal enclosures for Motor Control 2 Stage switching.

Operations Forward / Reverse.

Padlocking

Device for M3 Pad Locks (Optional), for Aluminium & Plastic

enclosures for Round Knobs.

T SERIES TG SERIES

CAM OPERATED ROTARY SWITCHES

APPLICATIONS

All switches are suitable for AC application. Most of theswitches are rated for 690V AC and 6 & 10 Amps are ratedfor 440V AC. AC switches are characterised by the "QuickMake-Slow Break" action by the inbuilt feature in ourlatching device and cam construction. These switches can beapplied for DC switching with proper derating and additionalcontacts in series according to the switching voltage.

These are basically ON-OFF switches, which can be used toisolate the power to a particular area of operation. These isolatorsswitches are available in a wide range from single pole to 12 poledesign. Isolators with spring return are also available up to 4poles. Pre-close contacts are used for safety circuits and forneutral and earth line. Isolators generally come underAC1/AC21 duty. Sometimes 3 Pole ON-OFF switches areused to switch ON and OFF the motor, with fuseprotection, when they must be rated for AC3 duty.

Changeover switches, also referred as Double Throw Switches.

They are used to operate two different circuits with different

numbers of input and outputs. These switches find their

application in EB Changeover, auto/manual changeover,

standby / remote changeover etc. Changeover switches without

jumper are used for connecting two different circuits, from two

different sources (potential free contacts). It may be due to two

different operating voltages or any other incompatible lines. All

the Double throw switch contacts by default are of Break Before

Make Type (BBM) to avoid overlapping of different circuits.

These switches are called Gang Switch, as they increase thecapacity of circuits by ganging. They are used for serialingand/or paralleling to drive different circuit capacity. The powerof battery supply can be increased by serial ing.The power of resistor can be increased by paralleling.

These switches can also be called Pole-Way switches, as they aregenerally described by poles and way. Multi step switch does thefunction of connecting different circuits in a common supplyor vice-versa. Application of these switches are innumerable. Tapchanging switch for transformer/stabilizer is an examplechangeover switches are basically two way switches. 1 Pole,2 Pole and 3 Pole are popular for 10, 20, 30 Amps respectively.

With the help of these switches we can measure currents indifferent circuits (with or without current transformer)with a single ammeter and a switch. Measure voltages betweenphases, phase and neutral, with one voltmeter and aswitch. Measure voltages and currents of a circuitswith one voltmeter, one ammeter and a single switch.

AC SWITCHES (Series TG & T)

ISOLATORS

CHANGE OVER SWITCHES

GANG SWITCHES

MULTI STEP SWITCHES

SELECTOR SWITCHES

CAM OPERATED ROTARY SWITCHES

KNOB SCREW

ONN

OFFFF

ONN

OFFFF

KNOB

S.P. LOCK

SCRIPT PLATE

SERRATION PLATE

FRONT PLATE

PANEL PLATE

HEX. SHAFT

SWITCH

PANEL SCREW

CONFORMING STANDARDS

SWITCH LIFE (Under Standard Operating Conditions)

CONTROL SWITCHES

Control switches are unique alternative for many of the

"PUSH BUTTON" Stations, where it is preferred to control a

system with one switch instead of many push buttons. Many

positions of the switch are possible to derive combinations.

These control switches are rated for AC15/DC13. AC15

switches need to carry an in-rush current of 10 times

the normal operating current, while energising solenoids

and coils. Hence, our switches are suitably derated for AC15,

while specifying the normal operating current. Control switch

are used to energise contactors for controlling motor

operations . Number of switches are of spring return type to

enable latching the circuit with contactor NO contact to

faci l i tate tr ipping by contactor tr ipping device .

MOTOR SWITCHES

These switches directly operate the motor with AC3 or AC4

duty. They are mainly used for motor forward-reversing,

star-delta, two speed forward reverse. Programmes are

designed so as to operate with a contactor to build in the

ripping feature on power failure and overload.

DC SWITCHES (Series D)

These switches are designed for DC Switching applications.

These switches are constructed using snap action

mechanism which provides Quick Make Quick Break of

the contacts which is essential for DC switching. The

contacts are of AgCd Double Break Butt Type, housed in a

Glass filled polyamide contact stage and are operated

through Cams for higher Electrical endurance and smooth

operation. Suitable for 90 & 60 switching programmes &

appl icat ions for both AC and DC switching.

0 0

European : IS/IEC-60947-1 : 2003

: IS/IEC-60947-3 : 2003

: IS/IEC-60947-5 : 2003

North America : CSA 22.2 No. 14-1991 ; UL 508 (1994)

MECHANICAL LIFE : 1 Lac Operations @ 300 Cycles/Hour.

ELECTRICAL LIFE : 20,000 Operations at 100% rated duty.

CONTACTS : Double Break Type Ag/AgNi/AgCd.

INSULATION : Glass Filled polyamide with High Tracking Index.

OPERATING TEMPERATURE : -25 C to 55 C.

OPERATING FREQUENCY : Upto 10KHz

HUMIDITY : 95% RH 48 Hours.

0 0

CAM OPERATED ROTARY SWITCHES

FORWARD - REVERSE

TECHNICAL SPECIFICATIONS

AC RATING

TG

32/3

41C

T32

/225

T40/5

40C

T6

3/5

63C

T80/6

08

T1

00

/60

8

Resistance to Surge Pulse Voltage (Ump)

Rated Operational Voltage (Ue)

Isolating Voltage Upto (Uiso)

Rated Uninterrupted Current Ith

V

kV

V

A

690

66666664 4

1251008050403220128

690

690690690690690690690

250250

440

500500415415415

440

CODE

Rated Operational Current Ith (Ie)

AC 21A/AC1

AC 15 220 - 240V

380 - 440V

63

6 7

14 1688

54A

A

A 6

1.0

2.0

100804010 16 25 32

1.5

2.5

---

---

Rated Operational Power

AC 3A/AC 23A 3 Phase 220 - 240V

380 - 440V

500 - 690V

AC 3A/AC 23A 1 Phase 110V

220 - 240V

380 - 440V

kW

--

- -

- -

- -

1 11

11

11

111.8 3

1.8 3

3

5.5 7.5

4 22

4

0.37

5.5

5.5

5.5

5.5

0.25

0.75 7.5 7.5

7.5

7.5

0.750.5

15

18.515

15 18.5

30 37

3722 45

0.55 1.5 2.2 2.2

1.10

1.5 3.0

2.5

Short Circuit Capacity

Fuse Size (Type gG/gM)

Rated Fused Short Circuit Current

A

kA

6 63 100804010 16 25 32

33 1010 2020 25255

DC1 (Power) 42V*

DC13 (Control) 24V*

636 100804010 16 25 32

A

A

63 100804016 25 3264

DC Rating

Voltage for each series connected contact

Terminal Cross Section

Single/Multiple MIN

MAX

Fine Strand with Sleeve MIN

MAX

Terminal Screw (Metric Thread)

Terminal Tightening Torque

mm2

mm2

mm2

mm2

0.7

0.7

0.7

0.7

1.5 1.5

1.51.5

44

2.52.5 1064

106 16 25

11 1.5

1.51.5

2.52.5

2.52.5

6

6 10

10

16 254

35

NM 0.50.5 0.8 1.2 1.2 2.52.522

M3.5 M3.5 M3.5 M4 M4 M5 M5 M10 M10

A

A

A

A

A

A

D63D40D16 D25 D32

11

16

25

32

0.5

1.5

3

9

20

0.4

1

2

5

12

3.2

55

660V

40

30

20

15

3.5

63

-

-

-

1 2 3 54 6

24V

30V

48V

60V

110V

48V

60V

95V

120V

220V

70V

90V

140V

180V

330V

95V

120V

190V

240V

440V

120V

180V

240V

300V

550V

145V

145V

290V

360V

Rated Operational CurrentRated Operational VoltageNo. of Series Contacts (V)

D63D40D16 D25 D32CODE

Dimensional AC Equivalent T-63T-40TG-16 T-25 T-32

1 2 3

110V 250V 460V

Rated Operational VoltageNo. of Series Contacts (V)

A

D63D40D16 D25 D32

322512 40 63

Rated Operational Current

DC Rating - Snap Action Switches

kW

kW

kW

kW

kW

CAM OPERATED ROTARY SWITCHES

TG

6/9

1C

TG10

/101

C

TG

25/2

41C

T25

/220

C

TG16

/121

C

The widest range

Tekmec Switchgear & Controls(An ISO 9001 : 2008 CERTIFIED COMPANY)483, Oberoi Compound, Dilshad Garden Indl. Area,G.T. Road , Delhi-110095 (India)PH: +91-11-40507948, 9810041895E-mail : sales@tekmec.co.in Website : www.tekmec.co.in

DC 22 L/R = 2 ms