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(PG, PG-M) Dispositivo de protección contra sobrecorriente ajustable (RCCB)

Release Time: 2026-03-06
When it comes to electrical safety, choosing the right residual current circuit breaker (RCCB) is non-negotiable. For homeowners, electricians, and business owners seeking flexibility, reliability, and precise protection, our adjustable RCCB (PG and PG-M series) stands out as a top-tier solution. Designed and manufactured by W9 GROUP, this adjustable residual current circuit breaker addresses the core pain points of standard fixed-setting RCCBs, offering customizable performance that adapts to diverse electrical systems.

Adjustable RCCB Features

Our adjustable RCCB (PG-M series) is engineered with user-centric design, setting it apart from conventional fixed RCCBs. The most prominent feature is its adjustable rated current, ranging from 5A to 60A, catering to both low-power household circuits and higher-load commercial or industrial setups. Unlike fixed RCCBs that only work for one specific current rating, our model lets users tweak the current setting to match exact load requirements, eliminating the need for multiple breakers and reducing costs.
In terms of configuration, the PG-M series offers two common types: 1P+N (2 极) and 3P+N (3ph.+N). The 1P+N variant is ideal for single-phase 230V systems, widely used in homes, small shops, and offices. The 3P+N version suits three-phase 400V industrial or commercial systems, such as factories, warehouses, and large retail spaces. For leakage protection, it provides optional residual current (RCD) settings of 300mA or 500mA, and can also be configured without ground leakage protection if needed. All models comply with the IEC60947-2 international standard, ensuring global quality and safety certification.
Key specifications reinforce its reliability:
  • Rated current: 5A–60A (adjustable)
  • Voltage: 230V (single-phase), 400V (three-phase)
  • Leakage current: None / 300mA / 500mA
  • Breaking capacity: 4.5kA
  • Durable build for long-term stable operation

Review the difference between RCBO and RCCB protection before allocating overload and residual-current functions.

Adjustable vs Fixed RCCBs

Many buyers wonder: “Is an adjustable RCCB worth the investment?” The answer is a resounding yes, and here’s why:
  1. Flexibility for Changing Loads: Electrical loads often change—adding new appliances, expanding commercial equipment, or upgrading industrial machinery. A fixed RCCB becomes obsolete when loads shift, but our adjustable RCCB adapts instantly with a simple setting change.
  2. Cost-Effectiveness: Instead of purchasing multiple fixed RCCBs for different circuits, one adjustable unit covers multiple current ratings. This cuts procurement costs and simplifies inventory management.
  3. Space-Saving: With compact overall dimensions (20mm×70mm×53mm for core models), the PG-M series fits easily into standard electrical panels. Its adjustable design reduces the number of breakers needed, saving valuable panel space.

Adjustable RCCB settings and functions

Specification Significado Bordura
Corriente nominal Carrying capability Not overload pickup
IΔn Residual-current sensitivity Must meet the protection objective
Delay if supplied Operating time characteristic Coordination must be verified
Waveform type Detectable residual-current forms Separate from current rating
Overcurrent device Coordinated MCB or fuse Not inferred from adjustment
Cambio Required action
Higher sensitivity threshold Reassess required additional protection
New electronic load Review leakage waveform and standing leakage
Different upstream device Recheck coordination
Authorised setting change Record and test as required

El guía de Protección contra corrientes residuales describes the installation conditions that a device label alone cannot establish.

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Control adjustable sensitivity as a protection setting

An adjustable residual-current threshold is a design parameter, not a convenience control for suppressing trips. Record the approved setting, any time delay and the required protection objective. A higher threshold may fail to provide additional protection where a more sensitive device is required.

Confirm whether the exact PG or PG-M configuration is an RCCB without integral Protección contra sobrecorriente. Coordinate its carrying and short-circuit duties with the specified upstream device. Lock or manage setting changes through the site’s maintenance process and re-test after an authorised adjustment.

Adjustable RCCB Applications

Our adjustable RCCB serves a wide range of applications, solving safety and compatibility issues across sectors:
  • Residential: Protects household circuits (lighting, sockets, kitchen appliances) with 5A–30A adjustable ratings, preventing electric shocks and electrical fires from leakage.
  • Commercial: Ideal for small businesses, cafes, and retail stores. The 30A–45A range suits air conditioners, refrigeration equipment, and office machinery.
  • Industrial: The 3P+N 60A model handles three-phase industrial equipment, motors, and production lines, with 500mA leakage protection for heavy-load safety.
  • Renovation & Retrofit: Perfect for old building upgrades. Its adjustable current easily matches outdated wiring loads, avoiding full electrical system overhauls.

Preguntas frecuentes

Does adjustable sensitivity make an RCCB an RCBO?

No. Adjustment of residual-current response does not add overload or Protección contra cortocircuitos. Verify the exact product category and coordinated overcurrent device.

Can sensitivity be increased to stop repeated trips?

Not without a protection review. Investigate leakage and wiring and preserve the threshold required by the installation rules.

Does rated current describe the residual-current threshold?

No. Corriente nominal concerns the device’s current-carrying capability, while IΔn describes residual-current sensitivity. Specify both separately.

What should be recorded after adjustment?

Record the approved sensitivity and delay, reason for change, device identity and required test results. Keep the record with the circuit schedule.

Adjustable RCCB Selection

For anyone prioritizing electrical safety, flexibility, and cost-efficiency, W9 GROUP’s adjustable RCCB (PG/PG-M series) is the ultimate choice. Its adjustable current ratings, optional leakage protection, IEC compliance, and compact design address nearly all pain points of fixed RCCBs. Whether you’re a homeowner upgrading safety, an electrician sourcing reliable components, or a business owner protecting commercial/industrial circuits, our adjustable residual current circuit breaker delivers consistent, tailored performance.
Trust leading technology from W9 GROUP—our adjustable RCCB doesn’t just protect circuits; it adapts to your unique electrical needs, making it a smart investment for long-term safety and reliability.

Referencias

Para la selección de la forma de onda y el polo, Contacte con W9 Group con la topología del circuito, la carga de equipos y las reglas del mercado de destino.