Installation Relays for central control AL4 AL5

Installation Relays for central control / Staircase Lighting Timer and Power step-on step-off relay

Installation Relays for central control

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.

Installation Relays for central control	Series	Socket type	Width mm	Contacts
Staircase Lighting Timer for central control 10 A (120A)	AL4	DIN 35	35	10A (120A)
Power step-on step-off relay for central control 10 A (120A)	AL5	DIN 35	35	10A (120A)