Headline: C&J Unveils CJL1-125 RCCB Series, High Performance Residual Current Circuit Breaker for Residential, Commercial and Industrial Electrical Safety Sub Headline: New generation plastic mechanism RCCB covers 16A 125A, AC / A / B type, compliant with IEC61008-1 & IEC61008-2-1 standards for worldwide low voltage applications
DATELINE: (ZHEJIANG, CHINA) – September 15, 2026 — C&J Electrical has officially introduced its upgraded CJL1-125 Residual Current Circuit Breaker (RCCB), a new generation earth leakage protection device built for residential, commercial and industrial low voltage power distribution systems. Delivering reliable protection against electric shock and electrical fire risks, the CJL1-125 RCCB offers complete specification coverage, robust mechanical performance and enhanced operational safety for global electricians, system integrators and end usersC& J.
The CJL1-125 RCCB supports 2-pole and 4-pole versions, with rated current ranging from 16A, 20A, 25A, 32A, 40A, 50A, 63A up to 100A and 125A. It works at rated voltage of 230V (1P+N) and 400V (3P+N), rated frequency 50/60Hz. Three circuit types are available: AC type, A type and B type, to satisfy leakage protection requirements for ordinary AC, pulsating DC and smooth DC leakage scenarios such as EV charging and photovoltaic installations.
This residual current circuit breaker features 6000A breaking capacity. Rated residual operating current options include 10mA, 30mA, 100mA and 300mA, covering personal safety protection and fire prevention applications. The optimum operating temperature ranges from 5°C to 40°C. Terminal tightening torque is 2.5,4N·m; both top and bottom terminals accept 25 mm² cables. Electro mechanical endurance reaches 4000 operation cycles. With a 36 mm module size, the unit fits standard 35 mm DIN rail mounting and supports compatible busbar assembly for fast cabinet installation.
“Traditional metal mechanism RCCBs face limits in stability and environmental adaptability,” said Product Manager of C&J Electrical. “Our CJL1-125 series adopts innovative plastic operating mechanism. Compared with classic metal structured units, it provides more stable release force, consistent mechanical cycles and better environmental friendly performance. All current carrying components use pure copper material. Sealed plastic screw covers prevent unauthorized disassembly, while the upgraded tripping structure raises overall safety level. A large transparent marking window allows installers to add custom identification on site for easy circuit management.”
Key product advantages of CJL1-125 RCCB:
- Full copper internal current carrying parts for excellent conductivity
- Plastic covered screw holes for tamper resistant safety
- New optimized tripping structure for dependable fault response
- Large transparent signboard area for custom circuit marking
- New generation plastic operating mechanism for stable performance and longer service life
- Full compliance with international standards IEC61008-1, IEC61008-2-1
Suited for household distribution boards, office buildings, retail sites, workshops and industrial power panels, CJL1-125 RCCB is designed for quick DIN rail installation and fits mainstream global low voltage cabinet layouts. Multiple residual current sensitivity selections give designers flexibility for human body shock protection and earth fault fire prevention in diverse project conditions.
Technical Specification Summary (CJL1-125 RCCB)
| Item | Parameter |
| Rated Current | 16A,20A,25A,32A,40A,50A,63A,100A,125A |
| Rated Voltage | 230V (1P+N), 400V (3P+N) |
| Rated Frequency | 50/60Hz |
| Number of Pole | 2P,4P |
| Module Size | 36 mm |
| Circuit Type | AC type, A type, B type |
| Breaking Capacity | 6000A |
| Rated Residual Operating Current | 10 mA, 30 mA, 100 mA, 300 mA |
| Operating Temperature | 5 °C ~ 40 °C |
| Terminal Capacity(top/bottom) | 25 mm² |
| Electro mechanical Endurance | 4000 cycles |
| Mounting | 35 mm Din Rail |
| Compliance | IEC61008-1, IEC61008-2-1 |
About C&J Electrical
C&J Electrical is a specialized manufacturer of low voltage electrical protection components, supplying RCCB, RCBO, MCB and related DIN rail devices for worldwide markets. The company focuses on product safety, material quality and standardized production, offering reliable circuit protection solutions for residential, commercial and industrial power distribution projects globally.
For more information on the CJL1-125 RCCB series, please visit official website or contact our sales team.
Post time: Sep-18-2026