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T4.23

Electromechanical timers

Classic

Electromechanical timers

Introduction

The Classic family of electromechanical timers is

used to switch loads on and off, according to a pre-

programmed switch-plan, as a function of time.

This range of electromechanical timers covers 1-

and 2-channel devices, net- or quartz-synchronised

with a daily or/and weekly program.

Operation

A motor drives a dial with switches. When put in

their ‘ON’ state, these switches mechanically

operate a contact. In this way, the 16A output-

contact is switched over a period of time, according

to the setting of the switches on the dial.

Besides the timed switching, the output can be

manually forced to the ON- or OFF-state at any time.

Features and benefits

Photos 1 to 3 show the front of the CLS x 1, CLS x

3, CLS x 4 and CLS x 6 Classic timers.

The dials clearly indicate daily or weekly operation

1 . The daily version has the shortest switching time

of 30 minutes. The shortest switching time of the

weekly version is 3 hours.

The different modes of operation are clearly marked

with self-explaining symbols next to the switch.

The function of the timer or the circuit that it

operates can be indicated behind the circuit

indicator

3 i.e. heating, lighting, etc. By means of

the plastic cover, the timer can be sealed making it

impossible to alter the program or the actual time

6 .

The clearly marked Pozidriv safety terminals

7 are

all captive.

photo 1

Type-name definition

The type-name of a Classic timer is a unique

designation that includes the main features of the

timer. It is composed of 5 parts:

- CLS: abbreviation for Classic

- Q or S: quartz- or net-synchronised

- 11, 31, 41, 62 of which the first figure represents

the width of the device in number of modules,

while the second figure represents the number of

channels

- D, W, DD or DW indicating daily, weekly or

combined daily-daily or daily-weekly operation

- M indicating metal dial-switch execution.

photo 2

1 2

photo 3

1 2 ... 19 20 21 22 23 24 25 26 27 28 29 ... 54 55

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