JDM1-48 is a counter relay in the relay category. It is suitable for control circuits with a frequency of 50Hz, rated control power voltage up to 380V and direct current rated control power voltage up to 240V as a counting or counting control element.
This manual describes the JDA1-48 relay, a 4‑pole count relay with selectable low‑speed (30 counts/s) or high‑speed (200 counts/s) operation. It lists the rated control voltage options, contact ratings, power consumption, and environmental limits.
The document includes wiring diagrams, terminal pin counts, physical dimensions, installation guidelines, and a sequence of operation steps for both low‑speed and high‑speed versions. This manual is written in Chinese.
| Rated control voltage | 24‑48 V DC, 100‑240 V AC, 220 V AC, 380 V AC |
|---|---|
| Half‑count speed | 30 counts/s (low) or 200 counts/s (high) |
| Number of poles | 4 |
| Operating temperature range | -5 °C to +40 °C |
| Physical dimensions (relay) | W 58 mm × H 52 mm × D 28 mm |
| Number of terminals | 8 pins (standard), 1 pin (12 V sensor) |
| Mechanical life | 10 years or more |
It can be powered from 24‑48 V DC, 100‑240 V AC, 220 V AC, or 380 V AC.
The relay measures 58 mm × 52 mm × 28 mm, and its packaging is 45.5 mm × 45.5 mm.