This document introduces the features and characteristics of the RDM1 series plastic shell circuit breaker. The circuit breaker has the characteristics of small size, high breaking capacity, short arc duration, and anti-vibration, making it ideal for land and marine use. The circuit breaker is suitable for AC 50Hz/60Hz, rated working voltage up to 660V, and rated current up to 1250A in distribution networks to distribute electrical energy and protect circuits and power equipment from damage caused by overloads, short circuits, and undervoltage.
The RDM1 series molded case circuit breaker is designed for distribution networks with rated voltages up to 660 V, currents up to 1250 A, and frequencies of 50 Hz/60 Hz. It offers high breaking capacity, short arc length, and vibration resistance, suitable for both land and marine applications.
The manual provides detailed information on normal use and installation conditions, over‑current trip units, internal and external accessories, wiring diagrams, mechanical dimensions, and maintenance procedures. Environmental disposal instructions and a packaging list are also included. This manual is written in Chinese.
| Rated Voltage | 660 V |
|---|---|
| Rated Current | 1250 A |
| Frequency | 50 Hz / 60 Hz |
| Insulation Voltage | 690 V (500 V for RDM1‑63) |
The surrounding air temperature must not exceed +40 °C, the 24 h average must not exceed +35 °C, and the lower limit is –5 °C.
The series includes two‑pole (2), three‑pole (3), and four‑pole (4) versions.
The recommended copper wire cross‑section should match the rated current as shown in Table 12 of the manual.
Yes, the breaker can be installed both vertically (竖装) and horizontally (横装).