This document describes the features and characteristics of the DIA53 monitoring relays, including 2-wire connection, self-powered, input ranges, adjustable set-point, and output.
The YZ DIA53 is a 1‑phase AC over‑current monitoring relay designed for DIN‑rail installation. It features a self‑powered, 2‑wire connection, knob‑adjustable set‑point, LED indication, and a normally‑open solid‑state output rated at 100 mA.
Technical specifications include input ranges of 2‑20 A, 5‑50 A or 10‑100 A, reaction time under 300 ms, IP20 protection, operating temperature from –20 °C to +60 °C, and housing dimensions of 17.5 × 81 × 67.2 mm. The relay complies with DIN/EN 50022, UL, CSA, and CE markings.
| Input range | 2‑20 A, 5‑50 A, 10‑100 A |
|---|---|
| Output current (max load) | 100 mA |
| Degree of protection | IP20 |
| Operating temperature | -20 °C to +60 °C |
| Housing dimensions | 17.5 × 81 × 67.2 mm |
| Frequency range | 45‑400 Hz |
| Maximum continuous current | 40 A (20 A version), 100 A (50 A version), 150 A (100 A version) |
The output can handle a maximum load current of 100 mA.
The housing measures 17.5 mm wide, 81 mm high and 67.2 mm deep.