3-Pole Type A RCBO – 50A C Curve 30mA 10kA (WRT350C-030)
18th Ed. Compliant
2-Year Warranty
UK Stock
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The WRT350C-030 is a 3-pole Type A RCBO designed for higher-current three-phase circuits requiring combined residual current and overcurrent protection. Rated at 50A with a C curve tripping characteristic and 30mA sensitivity, it provides dependable protection against overload, short-circuit, and earth leakage faults in a compact 3-module DIN rail format....
The WRT350C-030 is a 3-pole Type A RCBO designed for higher-current three-phase circuits requiring combined residual current and overcurrent protection. Rated at 50A with a C curve tripping characteristic and 30mA sensitivity, it provides dependable protection against overload, short-circuit, and earth leakage faults in a compact 3-module DIN rail format.
Type A residual current protection allows detection of AC residual currents and pulsating DC components, making this RCBO suitable for modern installations with electronic equipment and inverter-driven loads. The C curve response supports moderate inrush currents, commonly associated with motors, plant equipment, HVAC systems, and higher-load commercial distribution boards.
Installer note: The switched neutral design disconnects L1, L2, L3, and N simultaneously, improving isolation safety and reducing time required for insulation resistance testing.
- 3-pole Type A RCBO with integrated overcurrent protection
- 50A rated current with C curve characteristic
- 30mA residual current sensitivity
- 10kA short-circuit breaking capacity
- Switched neutral for full disconnection of live conductors
- Compact 3-module DIN rail design
- Clear IN / OUT / LOAD terminal markings
| Part Code | Rating | Curve | Residual Current |
|---|---|---|---|
| WRT350C-030 | 50A | C Curve | 30mA |
| WRT320C-030 | 20A | C Curve | 30mA |
| WRT332B-030 | 32A | B Curve | 30mA |
| WRT332C-030 | 32A | C Curve | 30mA |
| WRT340B-030 | 40A | B Curve | 30mA |
| WRT340C-030 | 40A | C Curve | 30mA |
The WRT350C-030 is ideal for three-phase circuits where Type A residual current protection and higher operating currents are required without sacrificing protection or isolation performance.
What type of circuits suit a 50A C curve RCBO?
50A C curve RCBOs are typically used on higher-load three-phase circuits with moderate inrush currents, such as motors, HVAC equipment, and plant installations.
Does this RCBO disconnect the neutral?
Yes. The switched neutral disconnects L1, L2, L3, and N simultaneously.
Is this suitable for commercial and industrial installations?
Yes. It is designed for three-phase commercial, industrial, and advanced residential installations requiring Type A protection.
What is the breaking capacity of this RCBO?
The WRT350C-030 has a rated short-circuit breaking capacity of 10kA.
Is this supplied pre-wired?
No. This RCBO is supplied as a DIN-rail-mounted device and must be wired during installation.
- Device Type: 3-Pole RCBO
- Residual Current Type: Type A
- Rated Current: 50A
- Tripping Curve: C Curve
- Residual Current Sensitivity: 30mA
- Breaking Capacity: 10kA
- Number of Modules: 3
- Neutral: Switched
- Mounting: DIN rail (EN 60715)
- Rated Voltage: 230V AC
- Frequency: 50/60Hz
- Compliance: IEC / EN 61009-1
This RCBO must be installed by a qualified electrician as part of a three-phase distribution board. Correct identification of supply and load conductors is essential.
- Mount on a standard 35mm DIN rail
- Follow IN / OUT / LOAD markings during installation
- Do not connect incoming supply to load terminals
- Switched neutral allows full isolation during testing
- Confirm C curve suitability for motor-driven or mixed-load circuits
