DS-30 series time relay is an electromagnetic time relay, which can be powered by DC or AC power. This relay has two sets of instantaneous transfer contacts and one set of delay main contacts. According to different specifications, a sliding delay contact can be installed. Its delay setting value can be equal to or less than the setting value of the delay main contact. Due to the different installation and wiring methods, the same core can have four structural forms.
The DS-30 series time relays are auxiliary devices used in protection and automation systems to provide required delay functions. The document describes their purpose, four mounting styles, internal wiring diagram and the optional drag‑pin indicator.
Technical data includes model coding, voltage ratings, timing ranges, coil power consumption, contact current rating and operating temperature. Installation guidelines advise vertical mounting on a screen plate, energizing before use, and proper cleaning during maintenance. This manual is written in Chinese.
| Operating temperature range | -20 to 440 °C |
|---|---|
| Maximum continuous contact current | 5 A |
| DC coil activation voltage | ≤75% of rated voltage |
| AC coil activation voltage | ≤85% of rated voltage |
| Coil power consumption (DC short‑time) | ≤25 W |
The relay can be mounted as Al1K (recessed), Al1P (panel‑mounted), Al1H (protruding rear wiring) or Al1Q (protruding front wiring).
The contacts can carry a continuous current of up to 5 A.
The relay operates from –20 °C up to 440 °C.
Mount the relay vertically on a screen plate, energize it before running, and ensure moving parts return to their original positions.