Staircase Timer ST-20

Staircase Timer ST-20

zł 62.99 Tax included
zł 51.21 No tax

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ST-20 Staircase Timer – Timed Lighting Control

The ST-20 staircase timer is designed for turning lights on and off for a set period using multiple parallel-connected push-button switches.

It can work with:

  • Unlimited number of non-illuminated switches

  • Limited number of illuminated switches:

    • Neon (1 mA) < 5 pcs

    • LED (0.1 mA) < 50 pcs

Applications

The ST-20 is ideal for:

  • Staircases

  • Hallways

  • Passageways and corridors

Supported Loads

  • Resistive loads

  • Lamps: incandescent, halogen, fluorescent, energy-saving, LED

Operating Modes

3-Wire Installation

  • Triggered by pressing a push-button switch

  • Adjustable time ranges: 1 s–60 s, 1 s–6 min, 1 s–60 min

  • Function I: turn on/off load for set time

  • Function II: Function I with pre-warning 10 s before end of time (turn off and turn on again)

4-Wire Installation

  • Triggered by pressing and releasing the push-button switch

  • Each press extends load operating time

  • Function I: turn on/off load for set time

  • Function II: as Function I with pre-warning

  • Function III: Function II with “service” option – hold button >10 s to turn on load for 30 min for building maintenance

Key Features and Advantages

  • Fast response: <40 ms

  • Quick readiness for next press: >200 ms

  • High switching capacity: 16 A (4000 W), 250 V AC

  • Low power consumption: 0.5 W

  • Inrush current resistance: 100 A

  • Relay contacts (1 NO, 1 NC) are galvanically isolated

  • TEST function – checks correct wiring

  • Adjustable off-time: 1 s–60 s / 1 s–6 min / 1 s–60 min

  • LED indicators:

    • Green – power present (230 V AC)

    • Red – contact 1-2 short (programming info)

    • Blue – contact 2-3 short (programming info)

Safety

Installation must be performed only by a qualified electrician.
Proper protective device selection is required.

100 Items

Data sheet

Inrush current
100 A
Reactivation time
powyżej 200 ms
Response time to impulse button
poniżej 40 ms
Maximum load current (power) – energy-saving and LED lamps
8A (2000 W)
Maximum load current (power) – halogen lamps
8A (2000 W)
Maximum load current (power) – fluorescent lamps
8A (2000 W)
Maximum load current (power) – incandescent lamps
10A (2500 W)
Maximum load current (power) – resistive load
16A, Ac1 (4000 W)
Operating position
dowolna
Short-circuit current of impulse buttons
5 mA
Programming
przycisk TEST-MODE
Mounting method
w puszce instalacyjnej fi 60 mm
Degree of protection
IP 20
Mechanical durability
100 000 cykli
Adjustment range
1s…60s, 1s…6min, 1s…60min
Rated supply voltage
230V AC, + 10%, -15%
Rated power consumption
0,5 W

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