As an Amazon Associate, we earn from qualifying purchases. MK Sentry 20A 30mA SP Type B RCBO | RCBOs | Screwfix.com MK Sentry . 7935S Gallery Attributes Brand name, Manufacturer name, Manufacturer, Attribute01MK Sentry Attribute0020 A Attribute026 kA Attribute03EN 61009-1. Attribute04RCBOs Attribute05Type B Attribute0610 Year Manufacturer's Guarantee (T&Cs Apply) Attribute07, MPN, SKU7935S Attribute08Single-Phase Attribute09Single Pole Attribute10, Attribute11, moq, multiple1 Attribute12230 V Attribute13RCBO AttributeKey00Amp Rating AttributeKey01Brand AttributeKey02Breaking Capacity AttributeKey03CE Standard (Tested to EN...) AttributeKey04CSU Device AttributeKey05Curve Type AttributeKey06Manufacturer Guarantee AttributeKey07Model No AttributeKey08No. of Phases AttributeKey09Number of Poles AttributeKey10Pack Size AttributeKey11Pieces in Pack/Case AttributeKey12Power Voltage Supply AttributeKey13Product Type Extra Product NameMK Sentry 20A 30mA SP Type B RCBO | RCBOs | Screwfix.com qtyInStock0 Distributor offers SellerSKUMOQIn stockMultiplePrices Screw Fix7935S11