A complete and consistent offer Pushbuttons with protective bellow and large dia 37mm actuation surface for use with glovesPushbuttons with silicone booted headEmergency Stop trigger action and mechanical latching pushbuttons with protective bellowSelector switches and key switches with protective bootsComplete products or sub assemblies for user assemblyScrew clamp or spring clamp terminals connectionsWide range of accessories : protective boots for heads and for contact blocks, protective guardRugged construction Up to IP 66, IP69KEmergency stop devices conforming to EN/IEC 60204-1, to EN/ISO 13850 and Machinery Directive 2006/42/ECCE markedSpecial contacts for low-power or high-power switchingShakeproof connection screws (periodic retightening unnecessary)Simplicity and speed of installation One hand installationFixing by a single nut (XB5) or triple point fixing collar (XB4)Common accessories to other Harmony XB4/XB5 components