Kühn Controls

Staircase lighting timer COMAT series AL1, AL2 and AL3

Type of construction are DIN (Deutsche Industrie Norm / German industrial standard).

Comat Staircase Lighting Timer

Staircase Lighting Timer

120 A (peak 20ms)

As a particular and common characteristic the Comat light control devices / staircase lighting timers of the series AL2, AL3, AL4 and AL5 have a twin-contact output with one side of the double contact made of tungsten.
A tungsten contact with its extremely high melting point can conduct exceptionally high currents, i.e. Up to 600 A until, in the case of short-circuit the fuse connected in series triggers.
Or up to 120 A for 20ms, as can appear when switching compensated fluorescent lamps or other gas discharge lamps.
With this characteristic a welding of contacts can be reliably prevented.
The devices in the AL4 and AL5 series are made for central control of switching functions and can also be used for the operation with extra-low voltages:
The professional solution for installations in schools, homes, authorities, industrial environments connected to a control central or to various illuminated push buttons (LED or glow lamps) up to 40mA.

Staircase lighting timer Series Socket type Width

Staircase Lighting Timer


DIN 35 17.5 1 contact 10A

Staircase Lighting Timer 10 A (120A)


DIN 35 35 1 contact 10A (120A)

Universal Staircase Lighting Timer 10 A (120A)


DIN 35 35 1 contact 10A (120A)

All relays … (selected by type):

Industrial, interface and installation relays: Timers: Monitoring relays: Compact PLC:
Interface relays

Miniature industrial relays

Standard industrial relays

Industrial relays LONG LIFE

DIN Relays

Solid-state relays (SSR)

Miniature Contactor

Step-on Step-off / Power Relays

Staircase Lighting Timer

Installation Relays for central control
Plug-in time cubes for industrial relays

The Comat CT System

Plug-in time relays

DIN time relays

Multicomat Programmable Plug-in
time delay relays RS, C, CX-series

Multicomat specially timers, Amplifier Relays,
Pulse Shapers, Preset Counters
Voltage monitor

Current monitoring relays

Three-phase monitoring

DC voltage / DC current monitor

Thermo protection relays

SMS Relay
Comat BoxX

more relays type … (alphabetical):

A… up to B…
BoxX controller, Relays, Time Delay Relays, Stair case lighting timer
C… up to C5…
Power miniature relays, LONG LIFE signal and control relays, Time Delay Relays
C6… up to C9…
Timers, Relays, Time Delay Relays, Miniature industrial relay, Control relay
CA… up to CY…
Relays, Time Delay Relays, voltage and current monitor, interface relays
E… up to Z…
Railway Relays, Time Delay Relays, Measuring and monitoring equipments, Thermo protection relay
List of replacement and compatible industry, control, monitoring, time delay relays, sockets MULTICOMAT, COMAT Functions and descriptions for time delay relays Data sheets, documentations and catalogs about products BoxX controller, EDL, Timers, Industrial relays, Monitoring relays, Compact Controller

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