This document is the user manual of KP series solid state relay. It introduces the features and usage of the product, including wide application range, control mode and input-output signal, fault detection and alarm, etc.
The manual introduces the KP series solid state relay, highlighting its wide application range (resistive wires, infrared lamps, silicon‑carbide rods, silicon‑molybdenum rods, graphite, transformers) and its ability to replace AC contactors. It explains the control methods (DC‑to‑AC, 5‑12 V input, 24 VAC‑480 VAC main circuit) and trigger types (zero‑cross and random) as well as fault detection with over‑temperature alarm and indicator lights.
Model codes are detailed (e.g., KPXXXX‑XXX‑X where P denotes random trigger, Z denotes zero‑cross, the numeric part indicates current rating and phase configuration). Wiring instructions cover the control terminals (4‑12 V signal activates the relay) and main circuit connections for single‑phase and three‑phase versions. The manual also lists environmental limits and installation advice, such as operating temperature –10 °C to 45 °C and humidity up to 90 %RH, and the need for good cabinet ventilation. This manual is written in Chinese.
| Control input voltage | 5‑12 V |
|---|---|
| Main circuit voltage | 24 VAC‑480 VAC |
| Trigger type | Zero‑cross or random |
| Phase configuration | Single‑phase or three‑phase |
| Current rating example | 30 A |
| Operating temperature range | -10 °C to 45 °C |
| Maximum humidity | ≤90 %RH |
| Indicator lights | Over‑temperature and output indication |
The relay conducts when the control signal voltage is between 4 V and 12 V (specified as 5‑12 V in the manual).
The relay can be used in environments from –10 °C up to 45 °C.
Both zero‑cross triggering and random triggering are supported.
The device can operate at humidity levels up to 90 %RH.