This part is manufactured by Weidmuller, a German company specializing in electrical connector products. It is a connector used for connecting cables to electronic devices. This specific part is a terminal block suitable for field mounting. It has 5 poles with a grey housing and is made from polyamide material. It is also UL approved and can accept up to 2.5 mm2 cables. It also has Wire Protector Technology, which helps to protect against accidental electrical damage.