63A 30mA Type B Four Pole RCD
£197.65
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The Navitas 63A 30mA Type B Four Pole RCD (N4633RB) provides advanced residual current protection for three phase commercial and industrial installations where smooth DC fault currents may be present. Designed for applications such as EV chargers, heat pumps, variable speed drives and lifts, it detects AC, pulsating DC and smooth DC residual currents. Combining a 63A current rating with 30mA sensitivity and a 10kA short circuit capacity, every device is individually tested and subjected to a comprehensive 37 point quality control inspection.
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Overview
The Navitas N4633RB is a 63A 30mA Type B Four Pole Residual Current Device developed for modern three phase installations where conventional Type A protection may not be suitable. Designed to detect AC, pulsating DC and smooth DC residual currents, it is ideal for applications including EV charging, heat pumps, variable speed drives, lifts and other equipment capable of producing smooth DC leakage currents.
Manufactured to BS EN 61008-1 and BS EN 62423, the device features a 10kA short circuit capacity, fault current indication and robust DIN rail mounting. Every Navitas Four Pole Type B RCD is individually tested and passes a comprehensive 37 point quality control inspection before leaving the factory, ensuring dependable protection and long term reliability in demanding installations.
Technical Specifcation
| Specification | Details |
|---|---|
| Part Number | N4633RB |
| Current Rating | 63A |
| Rated Sensitivity | 30mA |
| RCD Type | Type B |
| Breaking Capacity | 10kA |
| Number of Poles | 3P + N (Four Pole) |
| Rated Voltage | 400/415V AC |
| Frequency | 50Hz / 60Hz |
| Fault Current Indicator | Yes |
| Dimensions (H × W × D) | 90.3 × 72 × 77.3mm |
| Weight | 0.168kg |
| Mounting | DIN Rail EN 60715 (35mm) |
| Terminal Connection | Cable / Busbar |
| Tightening Torque | 2.5Nm |
| Terminal Capacity | 35mm² Max (Solid or Stranded Cu), 25mm² Max (Flexible Cu) |
| IP Rating | IP20 |
| Standards | BS EN 61008-1 & BS EN 62423 |
| Testing | Individually Tested |
| Quality Control | 37 Point QC Inspection |
| Packaging | Singular |
| Guarantee | 5 Years |
Applications
The Navitas 63A 30mA Type B Four Pole RCD is ideal for EV charging infrastructure, heat pumps, variable speed drives, lifts, renewable energy systems, industrial machinery and other three phase installations where smooth DC residual currents may be present. It provides dependable protection against AC, pulsating DC and smooth DC fault currents, making it suitable for today's most demanding electrical applications.
Why Navitas
Every Navitas Four Pole RCD is engineered with an installer first philosophy. Individually tested and subjected to a rigorous 37 point quality control inspection, each device is designed to deliver dependable protection, consistent performance and long term reliability. Backed by a five year guarantee and manufactured to recognised international standards, the Navitas RCD range is built to perform when it matters most.


