Transformer block for light block with integral LED, 440…460V. range of product: Harmony XB4 – product or component type: transformer block – device short name: ZBV – 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.