You are buying one RCCB.
eBay
Wylex WRS 100a RCD
eBay
The Wylex SP+SN Miniature Type B Module (NHXS1B20) is a white, single-throw circuit breaker with overcurrent protection suitable for wall mounting in interior rooms. It features a DIN rail mounting style and a maximum amperage of 20A, making it ideal for electrical wiring applications. The RCBO type device operates on an on/off control style and offers instantaneous break time, providing safety and protection against earth faults. The Wylex brand ensures reliability and quality in electrical equipment and supplies for businesses, offices, and industrial settings.
eBay
Wylex WRS100/4 100Amp, Type AC 100A 30MA RCD.
eBay
eBay
eBay
Wylex Stortz RCD.
eBay
This Wylex 63A 30mA Double Pole RCD Type AC WRS63/2 circuit breaker is a reliable and efficient choice for any business or industrial electrical setup. With its Type A tripping characteristics and AC current type, it is designed to provide maximum safety and protection against short circuits and overloads. The brand Wylex is known for its high-quality electrical equipment and supplies, and this circuit breaker is no exception. It is ideal for use in a variety of settings, including offices, warehouses, and factories. Whether you need to protect your circuit from overloads or are looking for a replacement part, this Wylex circuit breaker is a great choice. Removed from a working site and in good working condition
eBay