Timer Relay for DIN Rail Control and Automation
Compare the core VIOX FCT18 timer relay models for delayed switching, interval, off-delay, bistable and cyclic control functions.
FCT18 seriesDIN rail control platform
12–240VWide supply range by model
16APublished contact capacity
0.5%Published setting accuracy
Was ist ein Zeitrelais?
A timer relay changes one or more output contacts according to a defined time function after a control or supply signal is applied or removed.
Selection requires the timing function, adjustable range, supply voltage, trigger method, contact arrangement and load duty, reset behavior, accuracy, repeatability, mounting and environmental conditions.
Kern-FCT18-Zeitrelaismodelle
Eight published FCT18 models covering the principal timing functions highlighted on the original VIOX timer relay page.
VIOX FCT18-Q
Time-delay relay- Funktion Zeitmessung
- Einzelfunktion
VIOX FCT18-AR
Time-delay relay- Funktion Zeitmessung
- Impulsverzögert
VIOX FCT18-BR
Time-delay relay- Funktion Zeitmessung
- Single Interval
VIOX FCT18-BTA
Time-delay relay- Funktion Zeitmessung
- Off-Delay
VIOX FCT18-WGR
Time-delay relay- Funktion Zeitmessung
- On-Delay and Off-Delay
VIOX FCT18-CR
Time-delay relay- Funktion Zeitmessung
- Bistabil
VIOX FCT18-BCR
Time-delay relay- Funktion Zeitmessung
- Asymmetrical Flashing
VIOX FCT18-BD
Time-delay relay- Funktion Zeitmessung
- Doppelintervall
How to choose a timer relay
Define the timing diagram first, then match range, supply, trigger and output contacts.
Timing function and range
Select on-delay, off-delay, interval, cyclic or another published function and suitable adjustment range.
Supply and trigger
Match AC or DC control voltage, frequency and separate trigger requirements.
Output contacts and load
Confirm contact arrangement, switching duty and any interposing device required for the load.
Reset, accuracy and mounting
Check reset time, repeatability, indicators, DIN-rail or panel format and environment.
Draw the timing diagram before selecting the relay
Input state, delay, output state and reset behavior must match the machine sequence.
Compare published Timer Relay series
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| Serie | Funktion | Zeitbereich | Versorgung | Kontakte |
|---|---|---|---|---|
| VIOX FCT18-Q | Einzelfunktion | — | — | — |
| VIOX FCT18-AR | Impulsverzögert | — | — | — |
| VIOX FCT18-BR | Single Interval | — | — | — |
| VIOX FCT18-BTA | Off-Delay | — | — | — |
| VIOX FCT18-WGR | On-Delay and Off-Delay | — | — | — |
| VIOX FCT18-CR | Bistabil | — | — | — |
| VIOX FCT18-BCR | Asymmetrical Flashing | — | — | — |
| VIOX FCT18-BD | Doppelintervall | — | — | — |
Anwendungen für Zeitrelais
Typische Umgebungen, in denen die genauen Produkteigenschaften überprüft werden müssen.
Wissen und Auswahlleitfäden für Zeitrelais
Alle Artikel
Auswahl und DimensionierungWie man das richtige Zeitrelais auswählt
Auswahlfragen für Zeitrelais
Schnelle Antworten für einen vorläufigen Produktfamilienvergleich vor der detaillierten Schaltkreisprüfung.
Which timer function should be selected?
Use the required input, delay, output and reset sequence; compare the exact timing diagram for the model.
How is the time range chosen?
Choose a range that contains the required delay with useful adjustment resolution and verified accuracy.
Why does supply voltage matter?
The timer electronics and relay coil must match the actual control supply and frequency.
Can timer contacts switch a motor directly?
Only when the exact contact rating and utilization duty permit it; many loads require an interposing contactor or relay.
What is the difference between multifunction and single-function timers?
A multifunction timer offers selectable timing modes, while a single-function model is dedicated to one sequence; compare complexity, setting security and application needs.
Need the Right Timer Relay?
Let’s Match the Timing Sequence.
Send the timing diagram, delay range, supply voltage, trigger, contact load, mounting, quantity and target market.
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