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3 Phase RCCB
The 3 Phase RCCB product series is engineered for robust residual current protection in 3-phase electrical systems, ideal for industrial, commercial, and heavy-duty residential applications. Designed to detect and interrupt leakage currents, these devices safeguard against electric shocks, fires, and equipment damage in 3-phase setups.
CNC 3 Phase RCCB
The YCB7RL-63 RCCB (Residual Current Circuit Breaker) is an electromagnetic residual current operated device designed for AC 50/60Hz systems, supporting rated voltages of 230V or 400V and rated currents from 6A to 63A. It protects against indirect contact hazards and fire risks caused by insulation damage in circuits/equipment.
Key Features:
Protects against sinusoidal alternating earth fault currents.
Leakage protection without auxiliary power.
Unaffected by grid voltage fluctuations.
Core Specs:
Compliant with IEC/EN 60898-1 standard.
Rated residual operating current: 0.03A/0.1A/0.3A.
Rated breaking capacity: 6000A.
Poles: 1P+N, 3P+N.
About CNC Electric
CNC Electric was founded in 1988 with the launch of our inaugural molded case circuit breakers — marking the beginning of our journey in power solutions. With a focus on product development and manufacturing, we reorganized into a corporate group by 1995 and introduced our first full low-voltage series, earning a reputation for rugged reliability.
Many of our products are CE, TUV, and RoHS certified, ensuring reliability and compliance. We focus on both efficient production and environmental responsibility, integrating sustainable practices into our processes.
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FAQ
3 phase rccb working principle
A 3-phase RCCB (Residual Current Circuit Breaker) operates by monitoring the vector sum of currents across all three phases (and neutral, if included). In a balanced system, the total incoming current equals the outgoing current, so their vector sum is zero. If a leakage fault occurs (e.g., current flowing to ground due to damaged insulation or faulty equipment), the vector sum becomes non-zero. When this residual current exceeds the RCCB’s rated sensitivity (e.g., 30mA, 100mA), the device trips instantly, cutting power to prevent electric shocks, fires, or equipment damage.
how to test 3 phase rccb
To ensure a 3-phase RCCB functions correctly:
- Manual Test Button: Press the "Test" button on the device—this simulates a leakage current. The RCCB should trip immediately. If it doesn’t, it may be faulty and require replacement.
- Professional Tester: Use a residual current tester to inject a controlled leakage current (e.g., 30mA) and verify the RCCB trips within the specified time (typically ≤300ms for 30mA models).
- Regular Checks: Test monthly in critical circuits (e.g., industrial machinery, commercial kitchens) to maintain safety compliance.
3 phase rccb price
3-phase RCCB prices vary based on factors like pole configuration (3P, 3P+N), residual sensitivity (30mA/100mA/300mA), breaking capacity, and additional features (e.g., auxiliary contacts). For tailored quotes, contact our authorized distributors with your specific needs (e.g., "3 phase rccb 30ma" or "3 phase rccb 100ma").
What’s the typical lead time for 3-phase RCCB orders?
Lead times depend on your region and order quantity. Standard stock orders usually ship within 7–14 business days. For bulk or customized orders (e.g., large industrial projects), reach out to our sales team for a personalized timeline.
Does the 3-phase RCCB series support OEM customization?
Yes! We offer flexible OEM services, including:
- Custom branding (logo printing, product labeling).
- Packaging design (retail boxes, industrial crates).
- Feature adjustments (e.g., specific sensitivity levels, pole configurations).
What certifications do 3-phase RCCBs have?
Our 3-phase RCCBs comply with mainstream international safety and performance certifications, ensuring reliability across global markets.
How to connect with local distributors for 3-phase RCCB purchases?
To find authorized distributors or request a quote, visit our official website’s "Distributors" section or contact our customer service team. We’ll connect you with trusted partners in your region to streamline your purchase.
