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Brand: Schneider Electric
Schneider Electric XB5AS8445 Harmony XB5 22 mm Emergency Stop
Description
XB5AS8445 22 mm emergency stop button with turn-to-release head
The XB5AS8445 is a Schneider Electric product listed in the datasheet as: Emergency stop switching off, Harmony XB5, plastic, red mushroom 40mm, 22mm, trigger latching turn to release, 1NO+1NC. The XB5AS8445 is a 22 mm emergency stop push button from the Harmony XB5 range. It has a red 40 mm mushroom head that latches when pushed and releases by turning, and a contact block with one NO and one NC. Seven Star LLC supplies the XB5AS8445 in Oman and the GCC as an independent supplier based in Muscat.
Reading the reference: XB5 is the plastic 22 mm Harmony range, AS marks the emergency-stop operator and 8445 the turn-to-release red mushroom head with 1 NO plus 1 NC. The datasheet says positive opening is met per IEC 60947-5-1 appendix K.
Technical specifications of the XB5AS8445
| Parameter | Specification |
|---|---|
| Manufacturer / part number | Schneider Electric / XB5AS8445 |
| Description | Emergency stop switching off, Harmony XB5, plastic, red mushroom 40mm, 22mm, trigger latching turn to release, 1NO+1NC |
| Range of Product | Harmony XB5 |
| Product or Component Type | Emergency stop push-button; Emergency switching off push-button |
| Device short name | XB5 |
| Bezel material | Dark grey plastic |
| Fixing collar material | Plastic |
| Head type | Standard |
| Mounting diameter | 22.5 mm |
| Type of operator | trigger action and mechanical latching |
| Reset | Turn to release |
| Operator profile | Red mushroom Ø 40 mm, unmarked |
| Contacts type and composition | 1 NC + 1 NO |
| Contact operation | Slow-break |
| Connections – terminals | Screw clamp terminals, <= 2 x 1.5 mm² with cable end IEC 60947-1; Screw clamp terminals, >= 1 x 0.22 mm² without cable end IEC 60947-1 |
| Height | 43 mm |
| Width | 40 mm |
| Depth | 82 mm |
| Terminals description ISO n°1 | (11-12)NC (13-14)NO |
| Net Weight | 0.072 kg |
| Contacts usage | Standard contacts |
| Positive opening | With IEC 60947-5-1 appendix K |
| Operating travel | 1.5 mm NC changing electrical state; 4.3 mm total travel |
| Mechanical durability | 300000 cycles |
| Contacts material | Silver alloy (Ag/Ni) |
| Short-circuit protection | 10 A cartridge fuse gG IEC 60947-5-1 |
| [Ith] conventional free air thermal | 10 A IEC 60947-5-1 |
| [Ui] rated insulation voltage | 600 V 3IEC 60947-1 |
| [Uimp] rated impulse withstand | 6 kV IEC 60947-1 |
| [Ie] rated operational current | 3 A 240 V, AC-15, A600 IEC 60947-5-1; 6 A 120 V, AC-15, A600 IEC 60947-5-1; 0.1 A 600 V, DC-13, Q600 IEC 60947-5-1 |
| Electrical durability | 1000000 cycles, AC-15, 2 A 230 V 3600 cyc/h 0.5 IEC 60947-5-1 appendix C |
| Electrical reliability | Λ < 10exp(-6) 5 V, 1 mA in clean environment IEC 60947-5-4; Λ < 10exp(-8) 17 V, 5 mA in clean environment IEC 60947-5-4 |
| Ambient air temperature (operation or storage, as listed) | -40 to 70 °C |
| Overvoltage category | Class II conforming to IEC 60536 |
| IP degree of protection | IP66 IEC 60529; IP67; IP69; IP69K |
| Enclosure Type | UL type 4X/13 |
| IK degree of protection | IK03 conforming to IEC 50102 |
| Standards | UL 508; IEC 60947-5-5; IEC 60947-5-4; IEC 60947-5-1; ISO 13850; IEC 60364-5-53; CSA C22.2 No 14; JIS C8201-5-1; IEC 60947-1; IEC 60204-1 |
| Product Certifications | CSA; LROS (Lloyds register of shipping); BV; UL Listed; DNV |
| Vibration resistance | 5 gn (f= 2 to 500 Hz) conforming to IEC 60068-2-6 |
| Shock resistance | 30 gn 18 ms half sine wave acceleration IEC 60068-2-27; 50 gn 11 ms half sine wave acceleration IEC 60068-2-27 |
Operator, contacts and approvals
Operator: Red mushroom Ø 40 mm, unmarked. Action: trigger action and mechanical latching. Reset: Turn to release. Contacts: 1 NC + 1 NO. Positive opening: With IEC 60947-5-1 appendix K. Mechanical life: 300000 cycles. Protection: IP66 IEC 60529; IP67; IP69; IP69K. Standards: UL 508; IEC 60947-5-5; IEC 60947-5-4; IEC 60947-5-1; ISO 13850; IEC 60364-5-53; CSA C22.2 No 14; JIS C8201-5-1; IEC 60947-1; IEC 60204-1. Certifications: CSA; LROS (Lloyds register of shipping); BV; UL Listed; DNV.
Positive opening means the NC contact is forced to open by the mechanism even if the contacts weld, which is a requirement for emergency stop functions. The datasheet certifications and standards are the ones listed for this exact part.
Using the XB5AS8445 in an emergency stop circuit
The NC contact goes into the safety circuit, usually a safety relay or a contactor coil circuit, while the NO contact can signal to a PLC. A device alone is not a safety function: the risk assessment decides the category and the safety relay.
Check ISO 13850 requirements: the button must latch, be coloured red on a yellow background (the legend plate) and be reachable from the operator position.
Selection checklist for the XB5AS8445
- Reset type: turn-to-release (this part).
- Contact configuration 1 NO + 1 NC.
- Mounting hole 22 mm and panel thickness.
- Environmental protection for the location.
- Yellow legend plate availability.
- Safety relay and wiring category.
Installing and testing the XB5AS8445
Fit through a 22 mm hole, tighten the fixing collar and connect the contact block with the screw clamps to the specified torque. Mark the circuit and fit the legend plate.
Test periodically: press, check that the safety circuit opens, release and reset. Inspect for damage to the head after impact.
Typical applications of the XB5AS8445 in Oman and the GCC
Machine panels, motor control stations, conveyors and pump stations in the region where outdoor and washdown exposure require high ingress protection.
Dimensions, environment and approvals of the XB5AS8445
For the XB5AS8445, plan the mounting space from the datasheet: 40 mm (W) x 43 mm (H) x 82 mm (D). The XB5AS8445 weighs 0.072 kg. Mounting, derating and enclosure choices follow the environmental data below, which should be compared with the actual panel temperature and the dust and humidity of the site in Oman and the GCC.
Ambient temperature limits in the datasheet: -40 to 70 °C. Ingress protection: IP66 IEC 60529; IP67; IP69; IP69K. Vibration resistance: 5 gn (f= 2 to 500 Hz) conforming to IEC 60068-2-6. Shock resistance: 30 gn 18 ms half sine wave acceleration IEC 60068-2-27; 50 gn 11 ms half sine wave acceleration IEC 60068-2-27. Standards listed: UL 508; IEC 60947-5-5; IEC 60947-5-4; IEC 60947-5-1; ISO 13850; IEC 60364-5-53; CSA C22.2 No 14; JIS C8201-5-1; IEC 60947-1; IEC 60204-1. Certifications listed for this reference: CSA; LROS (Lloyds register of shipping); BV; UL Listed; DNV.
Information to send with an RFQ for the XB5AS8445
- Full reference and quantity required
- Existing equipment, panel or rack it must fit
- Supply voltage, load or signal details of the application
- Required delivery location and timing
- Whether a spare, a replacement or a new installation
Documents and quotation
A datasheet for this product is attached on this page. It lists the electrical, mechanical and environmental data summarised above.
Send us the part number, quantity and application and we will confirm availability and a quotation. Seven Star LLC is an independent supplier in Muscat and does not represent itself as an official channel of the manufacturer.
Datasheets & Documents
- Datasheet Schneider Electric XB5AS8445 Datasheet Download
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About brand
Schneider Electric is the French group for energy management and industrial automation: low and medium voltage switchgear and circuit breakers, motor control, drives, PLCs, power monitoring, UPS systems and building management. Its history goes back to 1836, when the brothers Adolphe and Eugène Schneider took over the iron and steel works at Le Creusot in Burgundy. Over the 20th century the company left steel and heavy engineering and became an electrical group through acquisitions such as Merlin Gerin, Télémécanique, Square D and Modicon. Its head office is in Rueil-Malmaison near Paris, and its shares are listed on Euronext Paris.
Schneider Electric company profile
| Origins | 1836, Le Creusot, France: Adolphe and Eugène Schneider take over the Le Creusot foundry |
|---|---|
| Headquarters | Rueil-Malmaison (Paris region), France |
| Ownership | Public company listed on Euronext Paris |
| Key acquisitions | Télémécanique (1988), Square D (1991), Merlin Gerin (1992), Modicon (1997), APC (2007), Invensys (2014); majority owner of AVEVA software |
| Brand names still in use | Acti9, ComPacT and MasterPacT breakers, TeSys motor control, Altivar drives, Altistart soft starters, Modicon PLCs, Harmony control components, PowerLogic and Easergy protection and metering, APC UPS, EcoStruxure software platform |
| Product families | Low voltage distribution, medium voltage switchgear and protection relays, motor control and drives, PLCs and HMIs, power meters, UPS and cooling, enclosures, building automation and energy software |
Milestones
- 1836: The Schneider brothers acquire the Le Creusot works; the business grows in steel, locomotives and heavy engineering.
- 1975: First investment in Merlin Gerin, a French maker of electrical distribution equipment.
- 1988–1992: Télémécanique, Square D (USA) and Merlin Gerin join the group, making it an electrical specialist.
- 1997: Modicon, the company behind the first programmable logic controller, joins the group.
- 1999: The group takes the name Schneider Electric.
- 2007 and 2014: APC (UPS and data centre power) and Invensys (process automation) are acquired.
Choosing Schneider Electric breakers and motor control
Circuit breakers are chosen by current and breaking capacity. Acti9 miniature circuit breakers (iC60, C120) protect final circuits up to 125 A. ComPacT NSX molded case breakers cover about 16 to 630 A, and the letter after the frame size sets the breaking capacity: B, F, N, H, S, L from lowest to highest. MasterPacT air circuit breakers are used as main incomers on large switchboards. For motors, a TeSys contactor with an LRD overload relay or a GV2 motor circuit breaker suits direct starting, an Altistart soft starter reduces starting current, and an Altivar drive controls speed. The breaking capacity must always be at least the prospective short-circuit current at the point of installation.
Where Schneider Electric products are used
In Oman and the GCC, Schneider Electric equipment is found in main and sub-main switchboards of commercial and residential buildings, motor control centres in water, oil and gas and industrial plants, substations protected by Sepam and Easergy relays, data centres powered by Galaxy and APC UPS systems, and buildings controlled by EcoStruxure Building Operation.
APC by Schneider Electric: UPS and critical power
Since 2007, APC has been part of Schneider Electric and is now its product brand for uninterruptible power supplies, replacement batteries, battery packs, network management cards and rack power distribution. Our APC catalogue covers Smart-UPS line-interactive and on-line models, Easy UPS On-Line, the modular Symmetra LX, RM and PX ranges, Silcon three-phase systems and their spare part kits, and the RBC cartridges that keep them running. Schneider Electric breakers, drives and PLCs can be quoted together with APC UPS systems in one request.
Schneider Electric products we list
| Family | Examples |
|---|---|
| Circuit breakers | Acti9 iC60N, C120N, NSX100F, NSX250N, NSX630, EasyPact EZC, MasterPacT MTZ1, MasterPacT NW |
| Motor control | TeSys Deca LC1D, TeSys F, LRD overload relay, GV2ME08, Altistart 22, Altistart 480 |
| Drives | Altivar 12, Altivar 320, ATV340, Altivar Process 630, ATV930, Lexium 32 servo |
| PLCs, HMIs and relays | Modicon M221, M241, M580 BMEP582040, Zelio Logic, Magelis HMISTU655 |
| Protection, metering and power | Sepam series 20, Easergy P3U30, MiCOM P139, PM5560, iEM3255, Galaxy VS UPS |
Ordering Schneider Electric products: what we need
Send the commercial reference from the label (for example LC1D18M7 or ATV320U22N4C). For breakers, confirm the rated current, number of poles, breaking capacity and trip unit. For contactors, give the coil voltage. For drives, give the motor power and supply voltage. APC products are listed on their own brand page.
Facts checked against Schneider Electric's published company history, October 2026.
Browse Schneider Electric products by category: Circuit Breaker, Electrical & Power Modules, AC Drives, PLC & I/O Cards, Metering Systems, UPS and Batteries.
FAQ
Questions about the Schneider Electric XB5AS8445 Harmony XB5 22 mm
Answers from our engineering team on installation, compatibility and integration.
01How does the XB5AS8445 release?
Datasheet: Turn to release.
02What contacts does the XB5AS8445 have?
Listed: 1 NC + 1 NO.
03What protection degree does it have?
Stated as IP66 IEC 60529; IP67; IP69; IP69K.
04What is the mechanical life?
The datasheet lists 300000 cycles.
05What standards does it list?
Listed: UL 508; IEC 60947-5-5; IEC 60947-5-4; IEC 60947-5-1; ISO 13850; IEC 60364-5-53; CSA C22.2 No 14; JIS C8201-5-1; IEC 60947-1; IEC 60204-1; JIS C8201-1.
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