- Part number
- XALK178E
- Model no
- XALK
Harmony XALKSchneider Electric XALK178E Harmony XALK Emergency Stop Station 40mm Turn to Release 1NO 1NC Control Station
Harmony XALK emergency stop station, 40mm mushroom button, turn to release, 1NO+1NC.
Description
About the XALK
About the XALK
The Schneider Electric XALK178E is a complete Harmony XALK control station for emergency stop and emergency switching off, built around an unmarked 40 mm red mushroom-head push button with turn-to-release reset, wired 1NO + 1NC. The yellow-lidded polycarbonate housing is rated IP66/IP67/IP69/IP69K for washdown-exposed emergency stop points.
Certifications & Standards
- IEC 60947-5-1
- IEC 60947-5-4
- IEC 60947-5-5
- UL 508
- CSA C22.2 No 14
- ISO 13850
- IEC 60204-1
Selection Notes
The added 1NO contact alongside the safety 1NC lets this station feed a status or monitoring signal (for example to a PLC input confirming the stop state) from the same button that breaks the safety circuit. Where only the 1NC safety contact is needed, the simpler XALK178 covers it; where two independent NC circuits are required, the XALK178F doubles the NC output instead.
Specification
Full specification
Main 13
| 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 + 1 NC |
| Reset | Turn to release |
| Control station composition | 1 mushroom head Ø 40 mm push-button, red 1 NO + 1 NC unmarked |
| Contact operation | Slow-break |
Complementary 34
| AC control voltage 50 HZ | 120…600 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 | 120…600 V |
| Net Weight | 0.428 lb(US) (0.194 kg) |
| DC control voltage | 125…600 V |
| 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), 0.1 in (2.6 mm) NO changing electrical state), 0.2 in (4.3 mm) total travel) |
| Operating force | 44 N NC + NO changing electrical state |
| 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 |
| [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 | 1 |
| 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 10
| 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) |
| Overvoltage category | Class II conforming to IEC 60536 |
| IP degree of protection | IP66 IEC 60529, IP67, IP69, IP69K |
| NEMA degree of protection | NEMA 13, NEMA 4X |
| IK degree of protection | IK03 conforming to IEC 62262 |
| Standards | IEC 60947-5-4, CSA C22.2 No 14, UL 508, IEC 60947-5-5, ISO 13850, IEC 60947-5-1, JIS C 4520, IEC 60364-5-53, IEC 60947-1, IEC 60204-1 |
| Vibration resistance | 5 gn (f= 12…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 |
Show all 71 specifications ↓ Show less ↑14 more values in Identification, Contractual warranty, Logistics.
Identification 8
| Part number | XALK178E |
|---|---|
| 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 | 3389110113662 |
Contractual warranty 1
| Warranty (in months) | 18 |
|---|
Logistics 5
| Country of origin | CZ |
|---|---|
| Shipping weight | 0.194 kg |
| Ships from | Türkiye |
| Dispatch | — |
| Stock | On request |
Source: manufacturer data · Last verified: 30 Oct 2026
Documents
Documents for XALK178E
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Ask us for the datasheet
Certifications
Certifications and standards
- IEC 60947-5-4
- CSA C22.2 No 14
- UL 508
- IEC 60947-5-5
- ISO 13850
- IEC 60947-5-1
- JIS C 4520
- IEC 60364-5-53
- IEC 60947-1
- IEC 60204-1
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 3389110113662.
Where does XALK ship from, and how fast?
XALK ships from Türkiye. Shipping calculated at checkout · import duties and taxes paid on arrival.
Reviews
Customer reviews
Series
Schneider Electric Harmony XALK
- Brand
- Schneider Electric
- Series
- Harmony XALK
