Description
Schneider XB4BS8444 Emergency stop push button, Harmony XB4, metal, red mushroom, 40mm, 22mm, trigger latching turn to release, 2NC
This Harmony XB4 emergency stop / shutdown 40mm mushroom head modular red push button operates with a latched-turn-to-release mechanism. It has a metal bezel. This emergency stop / shutdown button, also called EMS (Emergency Machine Stop) and EMO (Emergency Off), is easily installed into standard 22mm diameter cut-outs and connected with simple screw-clamp connections. It is clearly distinguishable visually at a distance thanks to a clear color and a prominent 40mm mushroom shape. It is impact resistant, dust resistant, water resistant and vibration resistant thanks to its IP66 / IP67 / IP69 / IP69K, making it ideal for operation in harsh environments.
Technical Specifications
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| Shape of screw head | slotted compatible with flat Ø 5.5mm screwdriver |
| Ambient air temperature for operation | -40-70 °C |
| [Ith] conventional free air thermal current | 10 A conforming to IEC 60947-5-1 |
| Supplier Code | XB4BS8445 |
| Ambient air temperature for storage | -40-70 °C |
| Mounting diameter | 22.5mm |
| Operator profile | red mushroom Ø 40mm- unmarked |
| Reset | turn to release |
| Vibration resistance | 5 gn (f= 2-500 Hz) conforming to IEC 60068-2-6 |
| Type of operator | trigger action and mechanical latching |
| Shock resistance | 50 gn (duration = 11 ms) for half sine wave acceleration conforming to IEC 60068-2-27 |
| Contacts type and composition | 1 NO + 1 NC |
| Head type | standard |
| IP degree of protection | IP69 |
| Range | Harmony XB4 |
| Weight | 0.13 kg |
| Shape of signaling unit head | round |
| Short-circuit protection | 10 A cartridge fuse type gG conforming to IEC 60947-5-1 |
| Electrical shock protection class | class I conforming to IEC 60536 |
| Electrical durability | 1000000 cycles- AC-15- 4 A at 24 V- operating rate <3600 cyc/h- load factor: 0.5 conforming to IEC 60947-5-1 appendix C |
| Device presentation | complete product |
| Protective treatment | TH |
| Bezel material | chromium plated metal |
| Tightening torque | 0.8-1.2 N.m conforming to IEC 60947-1 |
| Fixing collar material | zamak |
| [Ie] rated operational current | 0.55 A at 125 V- DC-13- Q600 conforming to IEC 60947-5-1 |
| Connections - terminals | screw clamp terminals- >= 1 x 0.22mm² without cable end conforming to IEC 60947-1 |
| Positive opening | with conforming to IEC 60947-5-1 appendix K |
| Cap/operator or lens colour | red |
| Depth | 82mm |
| Mechanical durability | 300000 cycles |
| Sale per indivisible quantity | 1 |
| Height | 47mm |
| Width | 40mm |
| NEMA degree of protection | NEMA 4X |
| Customizable | 0 |
| Operating travel | 2.6mm (NO changing electrical state) |
| Device short name | XB4 |
| Compatibility code | XB4 |
| Contacts usage | standard contacts |
| Contacts material | silver alloy (Ag/Ni) |
| [Ui] rated insulation voltage | 600 V (pollution degree 3) conforming to IEC 60947-1 |
| Terminals description ISO n°1 | (13-14)NO |
| Standards | IEC 60947-5-4 |
| Product certifications | BV |
| Brand Name | Schneider Electric |
| [Uimp] rated impulse withstand voltage | 6 kV conforming to IEC 60947-1 |
| IP Rating | IP66 |
| Resistance to high pressure washer | 7000000 Pa at 55 °C- distance : 0.1 m |
| Operating force | 44 N |
| Net weight | 0.13 kg |
| Contact operation | slow-break |
| IK degree of protection | IK06 conforming to IEC 50102 |
| Electrical reliability | λ < 10exp(-8) at 17 V and 5 mA in clean environment conforming to IEC 60947-5-4 |
| Product or component type | emergency stop push-button |
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