Schneider Harmony ZB4 red indicator head.

• Requires the use of a pilot light with a universal (white) LED.
• Highly distinguishable and clear lens.
• Impact, dust, water and vibration resistant.
• Designed to fit in a standard 22mm cut-out.
• Dimensions (mm): 29(diameter) x 30(depth).

Click for Schneider ZB4BV043 red indicator head datasheet