Electrically-heated catalytic converter

An electrically-heated catalytic converter comprising a catalyst support which produces heat when electric current is applied, a holding member made of an electrical insulating material, the holding member being provided so as to cover an outer circumference of the catalyst support, and a case which houses the catalyst support and holds the catalyst support via the holding member, wherein

• gas flowing in the case is treated by a catalyst supported on the catalyst support, wherein
• the holding member has a water-absorbing property, and
• an insulation layer made of an electrical insulating material including glass components is provided between the case and the holding member,
• the case is provided with a water interception member which has penetrating hole which the gas passes through and is located on an upper stream side of a gas flow direction than the catalyst support so as to hide the holding member when an inside of the case is viewed from the upper stream side of the gas flow direction, and
• the water interception member is located away from the catalyst support, the holding member, and the insulation layer.