YW5S1-63 1P 20A DIN Rail MCB 6kA
Walax-manufactured EAST-equivalent YW5S1-63 single-pole MCB calibrated at 20A with C-curve tripping. Optimised for general lighting and small-power socket circuits where moderate inrush currents (motors, transformers) are expected.
- Factory-direct pricing · OEM/ODM branding · IEC/CE compliance
- Wholesale & project supply to Africa, SE Asia & the Middle East
20A Calibrated Stock
Pre-calibrated at 20A C-curve — ideal specification for socket outlet and lighting sub-circuits in residential distribution boards.
C-Curve Tripping
Trips between 5× and 10× rated current — suited to circuits with moderate inrush loads (small motors, transformers, fluorescent lamps).
Tropicalised Build
Anti-humidity treatment and corrosion-resistant contacts for installation in coastal and tropical environments.
Technical Specifications
Standard ratings listed below – custom configurations available on request. Contact our engineers to confirm parameters for your market.




| Standard | IEC 60898-1 · CE |
| Rated current | 20A (fixed, calibrated) |
| Poles | 1P |
| Rated voltage | AC 230V (50/60Hz) |
| Breaking capacity | 6kA |
| Tripping curve | C (5×In – 10×In instantaneous) |
| Electrical life | ≥ 4,000 operations |
| Mechanical life | ≥ 20,000 operations |
| Mounting | 35mm DIN rail |
| Terminal capacity | Up to 25 mm² |
| Tropicalisation | Anti-humidity treatment as standard |
| Ambient temperature | -5°C to +40°C |
Where This Breaker Ships
General-purpose 20A lighting and socket circuits in residential distribution boards. C-curve calibration handles the inrush current of small motors, transformers and fluorescent lamp loads without nuisance tripping.
Frequently Asked Questions
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Need YW5S1-63 1P 20A C-Curve MCB 6kA Pricing?
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