Light block with body/fixing collar for BA9s bulb 250V 2NO. range of product: Harmony XB4 – product or component type: complete body/contact assembly and light block – device short name: ZB4 – fixing collar material: zamak – head type: standard – contacts type and composition: 2 NO – contact operation: slow-break – connections – terminals: screw clamp terminals : <= 2 x 1.5 mm² with cable end conforming to EN 60947-1, screw clamp terminals : >= 1 x 0.22 mm² without cable end conforming to EN 60947-1.