Schneider Electric | Harmony XB4 Series (ZB4-B) | Light Block The Harmony XB4 series of Light Blocks by Schneider Electric, specifically the ZB4 range of products offer you the reliability and certainty when you need it the most. The range is typically used as a body for a pilot light and can be used with pilot light heads. Features and benefits • Complete body/light block assembly with built-in integral LED. The LED is protected but also easily accessible to be replaced for example.

• Steady signalling type, coming in several different colours including white, red, green.

• Lightweight, easy to fit and configure screw clamp terminal connectors. Easily removable and adjustable.

• 100,000-hour service life when used at the rated voltage and typical 25 ° C temperature.

• Schneider Green Premium product as standard across the XB4 Contact block range. Environmentally friendlier than alternatives, easy to dispose of safely.

• 18 month warranty period with Schneider Electric.

Protection ratings & Safety features -

• EN/IEC 60947-1, 60947-5-1 & 60947-5-4.

• UL 508 & CSA C22.2 No 14.

• Vibration resistance 5 gn (f = 2...500 Hz) conforming to IEC 60068-2-6

• Shock resistance to 30/50gn dependant on the duration (see datasheet for spec).

• Surge resistance with an ability to withstand surges at 1 kV (this conforms with IEC 61000-4-5) Applications - • Pilot lights, LED inditactor for push buttons