- Part number
- XALK178W3B140G
- Model no
- XALK
- UL
- CSA
Harmony XALKSchneider Electric XALK178W3B140G Harmony XALK Illuminated Emergency Stop 1NO 2NC 24V AC DC Control Station
Harmony XALK illuminated emergency stop station, turn to release, 1NO+2NC, 24V AC/DC.
Description
About the XALK
About the XALK
The Schneider Electric XALK178W3B140G is a complete Harmony XALK control station for emergency stop, built around a 40 mm red mushroom-head push button with turn-to-release reset and a white/red illuminated ring supplied at 24 V AC/DC, wired 1NO + 2NC. The yellow-lidded polycarbonate housing is rated IP66/IP67/IP69/IP69K for industrial panel mounting.
Certifications & Standards
- UL Listed
- CSA
- CSA C22.2 No 14
- IEC 60947-5-1
- IEC 60947-5-4
- UL 508
Selection Notes
Two independent NC contacts plus the illuminated-ring NO signal make this the choice for dual-channel safety wiring that also needs a live status indication, over the single-NC XALK178W3B140E sibling. Specify it wherever the machine safety circuit requires two separate monitored stop paths from one illuminated button.
Specification
Full specification
Main 14
| Range of Product | Harmony XALK |
|---|---|
| Product or Component Type | Complete control station |
| Device short name | XALK |
| Product destination | For XB5 Ø 22 mm control and signalling units |
| Control station application | Emergency switching off function, Emergency stop function |
| Colour of base of enclosure | Light grey RAL 7035) |
| Colour of cover | Yellow RAL 1021) |
| Material | Polycarbonate |
| Operator profile | 1 mushroom head push-button |
| Operators description | Red unmarked 1 NO + 2 NC |
| Reset | Turn to release |
| Control station composition | 1 mushroom head Ø 40 mm push-button, red 1 NO + 2 NC |
| Contact operation | Slow-break |
| [Us] rated supply voltage | 24 V AC/DC |
Complementary 36
| AC control voltage 50 HZ | 24 V |
|---|---|
| Cable entry | 1 knock-out for cable entry 0…0.6 in (0…14 mm), 2 knock-outs for Pg 13 cable gland and ISO M20 0…0.5 in (0…12 mm) |
| AC control voltage 60 HZ | 24 V |
| Net Weight | 0.397 lb(US) (0.180 kg) |
| DC control voltage | 24 V |
| Electrical insulation class | Class II IEC 61140 |
| Resistance to high pressure washer | 1015.3 psi (7000000 Pa) 131 °F (55 °C) 0.1 m |
| Number of command positions | 1 |
| Number of indicator lights | 0 |
| Number of push buttons | 0 |
| Positive opening | With IEC 60947-5-1 appendix K |
| Operating travel | 0.06 in (1.5 mm) NC changing electrical state), 0.2 in (4.3 mm) total travel) |
| Operating force | 44 N |
| Number of selector switches | 0 |
| Mechanical durability | 300000 cycles |
| 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 |
| Number of key switches | 0 |
| Tightening torque | 7.08…10.6 lbf.in (0.8…1.2 N.m) IEC 60947-1 |
| Shape of screw head | Cross Philips no 1, Cross pozidriv No 1, Slotted flat Ø 4 mm, Slotted flat Ø 5.5 mm |
| 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 |
| Number of mushroom-shaped push-buttons | 1 |
| [Ui] rated insulation voltage | 600 V 3)IEC 60947-1 |
| Resistance to electrostatic discharge | 4 kV on contact (on metal parts) IEC 61000-4-2, 8 kV in free air (in insulating parts) |
| [Uimp] rated impulse withstand voltage | 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, 0.27 A 250 V, DC-13, Q600 IEC 60947-5-1, 0.55 A 125 V, DC-13, Q600 IEC 60947-5-1, 1.2 A 600 V, AC-15, A600 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, 1000000 cycles, AC-15, 3 A 120 V 3600 cyc/h 0.5 IEC 60947-5-1 appendix C, 1000000 cycles, AC-15, 4 A 24 V 3600 cyc/h 0.5 IEC 60947-5-1 appendix C, 1000000 cycles, DC-13, 0.2 A 110 V 3600 cyc/h 0.5 IEC 60947-5-1 appendix C, 1000000 cycles, DC-13, 0.5 A 24 V 3600 cyc/h 0.5 IEC 60947-5-1 appendix C |
| Emergency Power Off (EPO) | No |
| Electrical reliability | Λ < 10exp(-6) 5 V, 1 mA IEC 60947-5-4, Λ < 10exp(-8) 17 V, 5 mA IEC 60947-5-4 |
| Number of contacts as normally closed contact | 2 |
| Number of contacts as normally open contact | 1 |
| Number of contacts as change-over contact | 0 |
| Housing material | Plastic |
| Housing Colour | Yellow |
| colour of cover | Yellow |
Environment 9
| 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 | IP66 IEC 60529, IP67 IEC 60529, IP69 IEC 60529, IP69K ISO 20653 |
| IK degree of protection | IK05 conforming to IEC 62262 |
| Standards | CSA C22.2 No 14, IEC 60947-5-1, IEC 60947-5-4, UL 508, IEC 60947-1, JIS C 4520 |
| Product Certifications | UL Listed, 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 | 30 gn 18 ms) half sine wave acceleration IEC 60068-2-27, 50 gn 11 ms) half sine wave acceleration IEC 60068-2-27, 25 gn 6 ms) 1000 shocks on each axis IEC 60068-2-27 |
Show all 73 specifications ↓ Show less ↑14 more values in Identification, Contractual warranty, Logistics.
Identification 8
| Part number | XALK178W3B140G |
|---|---|
| Type designation | XALK |
| Brand | Schneider Electric |
| Condition | New, factory sealed |
| Source | Schneider Electric and its authorised distributors |
| Warranty | Manufacturer warranty |
| Lifecycle status | Active, in production |
| EAN | 3606489745721 |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Logistics 5
| Country of origin | CZ |
|---|---|
| Shipping weight | 0.18 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
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Certifications
Certifications and standards
- UL
- CSA
- CSA C22.2 No 14
- IEC 60947-5-1
- IEC 60947-5-4
- UL 508
- IEC 60947-1
- JIS C 4520
Quick answers
Questions about the XALK
What is the HS code of XALK for customs?
The tariff (HS) code on file for XALK is 853650.
What is the EAN of XALK?
The EAN (GTIN) of XALK is 3606489745721.
Where does XALK ship from, and how fast?
XALK ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
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Series
Schneider Electric Harmony XALK
- Brand
- Schneider Electric
- Series
- Harmony XALK
