> ## Documentation Index
> Fetch the complete documentation index at: https://docs.totemdigital.ro/llms.txt
> Use this file to discover all available pages before exploring further.

# ZYT16G-2a/3a timer: description and technical specifications

> Description and technical specifications of the ZYT16G-2a/3a microcomputer timer switch: voltage, circuits, capacity, timing range, and dimensions.

The ZYT16G-2a/3a is a microcomputer timer switch that automatically turns electrical equipment on and off at set times.

<Warning>
  Read this manual carefully before use. Please keep the manual in a safe place.
</Warning>

## Description

This product can automatically turn various types of electrical equipment on and off according to a fixed schedule. It is widely used for programmable control of electric cookers, boosters, lamps, water heaters, sprayers, bottling machines, preheaters, agricultural installations, broadcasting equipment, and more.

The front panel has the display, the **POWER** and **WORK** indicators, and the **RESET/RECALL**, **HOUR**, **MINUTE**, **WEEK** (DAY), **AUTO/MANU**, **TIMER**, and **CLOCK** keys.

## Technical specifications

| Parameter | Value |
| :- | :- |
| Voltage range | 180～240V / 50Hz |
| Number of circuits | 2a / 3a |
| Capacity | 3A |
| Power consumption | \< 4VA |
| Timing control range | 1 min ～ 168 h |
| Timing error | \< ±2 s/day (25℃ ± 1℃) |
| Temperature | -10℃ ～ +50℃ |
| Relative humidity | \< 95% |
| Dimensions | 120 × 72 × 51 mm |
| Weight | 249 g |

<CardGroup cols={2}>
  <Card title="Programming" icon="clock" href="/en/timere-electronice/zyt16g/programare">
    Unlocking, setting the clock, and setting on/off groups.
  </Card>

  <Card title="Installation and wiring" icon="plug" href="/en/timere-electronice/zyt16g/instalare-conectare">
    Mounting dimensions and single-phase and three-phase wiring.
  </Card>
</CardGroup>


## Related topics

- [Installing and wiring the ZYT16G-2a/3a timer](/en/timere-electronice/zyt16g/instalare-conectare.md)
- [ZYT16G timer not working: replacing the AA battery](/en/timere-electronice/zyt16g/inlocuire-baterie.md)
- [Programming the ZYT16G timer: clock and on/off groups](/en/timere-electronice/zyt16g/programare.md)
- [CN101 Timer: Description and Full Technical Specifications](/en/timere-electronice/cn101/prezentare.md)
- [Electronic timer user manuals by Totem Digital Romania](/en/timere-electronice/prezentare.md)


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