This Harmony XB4 single contact block is pre-assembled on a body/collar fixing unit. It features 2 normally closed (NC) contacts. It is compatible with Harmony XB4 units. It consists of a single contact block pre-assembled on a fixing collar unit. Simply adding a head to this assembly will provide you with a complete ready-to-use push button. It protects operators from unexpected contact with live circuits thanks to its IP20 protection index. 1 million cycle high endurance provides less maintenance and damage in your installation. Its wide range of operating temperatures from -40°C to 70°C allows versatility in usage of product. This metal product weighs 54g. It is easily installed with push-in terminal connections. Its wide range of operating temperatures from -40°C to 55°C allows versatility in usage of product. Thanks to its simplicity of installation, flexibility, and robustness, it meets the requirements of the majority of industrial applications Harmony delivers an innovative and ergonomic design that improves the reliability of panels, machines, and processes. Specifications Main Range of product Harmony XB4 Product or component type Complete body/contact assembly Device short name ZB4 Fixing collar material Zamak Sale per indivisible quantity 1 Head type Standard Contacts type and composition 2 NC Contact operation Slow-break Contact block type Single Device composition Fixing collar Body Connections - terminals Push-in, <= 2 x 1.5 mm² with wire end ferrule IEC 60947-1 Push-in, >= 1 x 0.34 mm² without wire end ferrule IEC 60947-1 Complementary CAD overall width 1.8 in (46.2 mm) CAD overall height 1.09 in (27.6 mm) CAD overall depth 1.2 in (30 mm) Terminals description ISO n°1 (11-12)NC Product weight 0.106 lb(US) (0.048 kg) Contacts usage Standard contacts Positive opening With IEC 60947-5-1 appendix K Operating travel 0.048 in (1.217 mm) NC changing electrical state) 0.2 in (4.3 mm) total travel) Operating force 4.5 N NC changing electrical state Mechanical durability 10000000 cycles Contacts material Silver alloy (Ag/Ni) Short-circuit protection 10 A cartridge fuse gG IEC 60947-5-1 [Ith] conventional free air thermal current 10 A IEC 60947-5-1 [Ui] rated insulation voltage 300 V 3)IEC 60947-1 [Uimp] rated impulse withstand voltage 4 kV IEC 60947-1 [Ie] rated operational current 6 A 120 V, AC-15, A300 IEC 60947-5-1 3 A 240 V, AC-15, A300 IEC 60947-5-1 0.55 A 125 V, DC-13, Q300 IEC 60947-5-1 0.27 A 250 V, DC-13, Q300 IEC 60947-5-1 Device presentation Basic sub-assemblies Environment Protective treatment TH Ambient air temperature for storage -40…158 °F (-40…70 °C) Ambient air temperature for operation -40…158 °F (-40…70 °C) IP degree of protection IP20 IEC 60529 Standards IEC 60947-1 IEC 60947-5-1 IEC 60947-5-4 IEC 60947-5-5 UL 60947-1 UL 60947-5-1 UL 60947-5-5 UL 1059 UL 486E CSA C22.2 No 60947-1 CSA C22.2 No 60947-5-1 CSA C22.2 No 158 CSA C22.2 No 65 IACS E10 Product certifications EAC IECEE CB Scheme CCC UL CSA Vibration resistance 5 gn (f= 10…500 Hz) conforming to IEC 60068-2-6 25 mm peak to peak (f= 2…10 Hz) conforming to IEC 60068-2-6 Shock resistance 25 gn 6 ms) 1000 shocks on each axis IEC 60068-2-27 30 gn 18 ms) half sine wave acceleration IEC 60068-2-27 50 gn 11 ms) half sine wave acceleration IEC 60068-2-27