Specifications

T4
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
5
6
6
1
4
7
1 2
4
7
5
6
photo 3
6
1
1
5
4
2
7