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
رله تایمر چیست؟
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.
مدلهای اصلی رله تایمر FCT18
Eight published FCT18 models covering the principal timing functions highlighted on the original VIOX timer relay page.

VIOX FCT18-Q
Time-delay relay- تابع زمانبندی
- تک عملکردی

VIOX FCT18-AR
Time-delay relay- تابع زمانبندی
- پالس تاخیری

VIOX FCT18-BR
Time-delay relay- تابع زمانبندی
- Single Interval

VIOX FCT18-BTA
Time-delay relay- تابع زمانبندی
- تأخیر در قطع

VIOX FCT18-WGR
Time-delay relay- تابع زمانبندی
- On-Delay and Off-Delay

VIOX FCT18-CR
Time-delay relay- تابع زمانبندی
- دوتایی

VIOX FCT18-BCR
Time-delay relay- تابع زمانبندی
- Asymmetrical Flashing

VIOX FCT18-BD
Time-delay relay- تابع زمانبندی
- بازه دوگانه
How to choose a timer relay
Define the timing diagram first, then match range, supply, trigger and output contacts.
عملکرد و محدوده زمانبندی
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
Blank cells mean the value is not available in the current product summary. Open the model page or request its datasheet before specification.
| سری | عملکرد | محدوده زمانی | Supply | اطلاعات تماس |
|---|---|---|---|---|
| VIOX FCT18-Q | تک عملکردی | — | — | — |
| VIOX FCT18-AR | پالس تاخیری | — | — | — |
| VIOX FCT18-BR | Single Interval | — | — | — |
| VIOX FCT18-BTA | تأخیر در قطع | — | — | — |
| VIOX FCT18-WGR | On-Delay and Off-Delay | — | — | — |
| VIOX FCT18-CR | دوتایی | — | — | — |
| VIOX FCT18-BCR | Asymmetrical Flashing | — | — | — |
| VIOX FCT18-BD | بازه دوگانه | — | — | — |
Timer Relay Applications
Typical environments where the exact product characteristics must be verified.
Timer Relay Knowledge & Selection Guides
تمامی مقالاتTimer Relay Selection Questions
Quick answers for preliminary product-family comparison before detailed circuit verification.
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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