Description
Schneider XB4BS8445 Emergency stop switching off, Harmony XB4, metal, red mushroom, 40mm, 22mm, trigger latching turn to release, 1NO+1NC
This product is part of the Harmony XB4 range, an offer of Ø 22mm metal pushbuttons, switches and pilot lights. This red Emergency stop pushbutton comes with a mushroom head. It operates with a turn to release mechanism. This mushroom headed pushbutton provides an ergonomic interface for controlling/stopping machines. It comes with 1 NC monitoring contact with slow break operation. It is clearly distinguishable visually at a distance due to a clear color and a prominent mushroom shape. It has a chromium plated metal bezal and has a 40mm diameter mushroom head. It is an IP66, IP67, IP69 and IP69K rated product and comes with CE, CCC, UKCA, EAC, UL and CSA certification. It is easily installed into a standard 22mm diameter panel cut-outs and connected to control circuits with screw-clamp connections. The Harmony XB4 range offers innovative features for simple and efficient use.
Technical Specifications
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| Shape of screw head | slotted compatible with flat Ø 4mm screwdriver |
| Ambient air temperature for operation | -40-70 °C |
| [Ith] conventional free air thermal current | 6 A conforming to IEC 60947-5-1 |
| Supplier Code | XB4BS8446 |
| 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 | 25mm peak to peak (f= 2-10 Hz) conforming to IEC 60068-2-6 |
| Type of operator | trigger action and mechanical latching |
| Shock resistance | 25 gn (duration = 6 ms) for 1000 shocks on each axis conforming to IEC 60068-2-27 |
| Fixing mode | by fixing collar recommended torque: 1 N.m (+/- 0.2 N.m) |
| Head type | standard |
| IP degree of protection | IP69K conforming to ISO 20653 |
| Range | Harmony XB4 |
| Weight | 0.117 kg |
| Shape of signaling unit head | round |
| Short-circuit protection | 6 A cartridge fuse type gG conforming to IEC 60947-5-1 |
| Electrical shock protection class | class I conforming to IEC 60536 |
| Electrical durability | 300000 cycles- DC-13- 0.3 A at 120 V- operating rate <3600 cyc/h- load factor: 0.5 conforming to IEC 60947-5-1 appendix C |
| Device mounting | fixing hole - diameter: 22.5mm +/- 0.2mm |
| 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 | 0.11 A at 250 V- DC-13- R300 conforming to IEC 60947-5-1 |
| Connections - terminals | screw clamp terminals- >= 1 x 0.34mm² 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 | 85mm |
| Mechanical durability | 300000 cycles |
| Sale per indivisible quantity | 1 |
| Height | 47mm |
| Width | 40mm |
| Customizable | no |
| Operating travel | 4.3mm (total travel) |
| Device short name | XB4 |
| Compatibility code | XB4 |
| Contacts usage | monitoring contact |
| Contacts material | silver alloy (AgSnO2) |
| [Ui] rated insulation voltage | 300 V (pollution degree 3) conforming to IEC 60947-1 |
| Standards | BS EN 60947-5-1 |
| Brand Name | Schneider Electric |
| Product certifications | DNV |
| [Uimp] rated impulse withstand voltage | 4 kV conforming to IEC 60947-1 |
| IP Rating | IP66 |
| Operating force | 47 N |
| Net weight | 0.117 kg |
| Contact operation | slow-break |
| IK degree of protection | IK06 conforming to IEC 60068-2-75 |
| Electrical reliability | λ < 10exp(-8) at 17 V and 3.4 mA in clean environment conforming to IEC 60947-5-4 |
| Product or component type | emergency stop push-button |
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