Schneider Electric XALK178H7 Harmony Emergency Stop Control Station, Yellow, 40mm Mushroom Button, IP66

MPN: XALK178H7
PPN: SCH-XALK178H7

If you can't find the product or are unsure which one you need, please use the Product Selector tool below

$143.51

Available to Order

Available to Ship Same/Next Business Day if In Stock and Ordered before 12:00 PM EST

Available To Ship Immediately:0

Loading dialog...

Loading add to cart quantity...

Looking to buy a large quantity?

To View Branch Inventory And Your Custom Pricing

Spec sheet

Compare

Description

Harmony 22 mm modular push buttons, selector switches, pilot lights are designed for industry. This range combines simplicity of setup, flexibility and a robust construction. An ingenious locking system consisting of a snap fit head and body that can be tightened with a single screw but still ensuring an easy and yet secure mounting. Harmony XB4/ZB4 are 22 mm chromium plated metal modular push buttons, selector switches and pilot lights connecting to fully metal mounting collar. The operators can be purchased as complete operators or various modules that can be assembled to meet the user’s specific requirement. Harmony XB5/ZB5 are 22 mm plastic modular push buttons, selector switches, pilot lights. The operator can have a round and square plastic bezel. Its wide range of operating temperatures from -40°C to 70°C allows versatility in usage of product. The contacts can be used for low load electrical contact and high power applications. Shake proof connection screws make periodic retightening unnecessary. A complete set of accessories to provide a solution for applications where exposure to high pressure cleaning, dust and extreme temperatures is an everyday occurrence. These harmony 22mm push buttons are used by machine manufacturers (automotive, textiles, timber) and control system panel builders. Certified and approved for meeting requirements throughout all continents: EN/IEC, UL, NEMA, CSA, CCC, Gost, JIS and many more. They have UL and CE markings and have ratings up to IP66 and IP69K.

Features

Engineered with a highly visible 40mm red mushroom head push button and a vibrant yellow polycarbonate enclosure, this Harmony XALK emergency stop control station guarantees rapid, fail-proof identification. The secure "turn-to-release" latching mechanism ensures the electrical circuit remains safely locked open until manually reset by a technician, providing essential protection for machine operators and completely preventing catastrophic accidental machinery restarts.
Built to withstand extreme industrial conditions, this complete control station features an ultra-rugged, dust-tight, and waterproof IP69K and NEMA 4X rated housing. This double-insulated construction safely resists high-temperature jet washdowns, corrosive chemical exposure, and heavy impacts, making it a highly reliable solution for demanding food processing, automotive, and heavy manufacturing facilities.
Equipped with a robust 1 Normally Closed (NC) slow-break contact block rated for up to 600V, this switch delivers immediate circuit interruption the millisecond it is struck. It utilizes advanced vibration-resistant screw-clamp terminals that completely eliminate the risk of wires vibrating loose over time, drastically reducing frustrating maintenance downtime and dangerous fault conditions in high-impact automation applications.
Strictly compliant with the critical ISO 13850 design standards for emergency stop devices, alongside full UL and CSA certifications, this unit ensures your automated equipment easily passes rigorous building and safety inspections. Integrating factory-tested, globally recognized Schneider Electric hardware actively mitigates facility liability risks and ensures your motor control panels remain fully aligned with stringent OSHA workplace safety mandates.

Documentation & Downloads

Specifications

Key Specifications

Country of Origin	Czechia, France, United States

Physical Attributes

Color Of Base Of Enclosure	light grey RAL 7035)
Housing Color	yellow

Color Of Cover	yellowyellow RAL 1021)

Important Information Attributes

Persona Type Ids	BM9, EU, LC, OM, OM8, PB, SC, SI, VR
Market Segmentation Id	COMMERCIAL, INDUSTRIAL
Cable Entry	1 knock-out for cable entry 0-14 mm, 2 knock-outs for Pg 13 cable gland and ISO M20 0-12 mm
Electrical Durability	1000000 cycles, AC-15, 2 A 230 V 3600 cyc/h 0.5 IEC 60947-5-1 appendix C1000000 cycles, AC-15, 3 A 120 V 3600 cyc/h 0.5 IEC 60947-5-1 appendix C1000000 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
Shape Of Screw Head	cross Philips no 1, cross pozidriv No 1slotted flat Ø 4 mm, slotted flat Ø 5.5 mm
[Ie] Rated Operational Current	3 A 240 V, AC-15, A600 IEC 60947-5-16 A 120 V, AC-15, A600 IEC 60947-5-10.1 A 600 V, DC-13, Q600 IEC 60947-5-10.27 A 250 V, DC-13, Q600 IEC 60947-5-10.55 A 125 V, DC-13, Q600 IEC 60947-5-1, 1.2 A 600 V, AC-15, A600 IEC 60947-5-1
Carbon Footprint Of The End-of-life Phase [C1 To C4]	0 kg CO2 eq., 0.031156544
Carbon Footprint Of The Manufacturing Phase [A1 To A3]	1 kg CO2 eq., 1.0739284254
Local Data Status	Publishable
Return Indicator	Y
Stock Policy	1
Weee Product Category	5
Eoli Availability Display	Yes
Reach Full Compliance Status	Free of Substances of Very High Concern above the threshold
Reach Compliance Directive	Free of Substances of Very High Concern above the threshold
Rohs Eur Status	Compliant
Rohs Eur Full Compliance Status	Compliant
China Rohs Label	1
Without Single Use Plastic	No
Tier Id	1
Function Option Id	STANDARD
Product Kit Identifier	N
Contact Operation	slow-break
Control Station Composition	1 mushroom head Ø 40 mm push-button, red 1 NC unmarked
Device Short Name	XALK
Material	polycarbonate
Operating Force	44 N
Operator Profile	1 mushroom head push-button
Overvoltage Category	class II conforming to IEC 60536
Product Availability	Stock - Normally stocked in distribution facility
Product Or Component Type	complete control station
Range Of Product	Harmony XALK
Resistance To High Pressure Washer	7000000 Pa 55 °C 0.1 m
Shock Resistance	30 gn 18 ms) half sine wave acceleration IEC 60068-2-2750 gn 11 ms) half sine wave acceleration IEC 60068-2-27
Sustainable Packaging	No
Total Lifecycle Carbon Footprint	1 kg CO2 eq.
Weee Label	The product must be disposed on European Union markets following specific waste collection and never end up in rubbish bins.
Ac Control Voltage 60 Hz	120-600 V
Number Of Contacts As Normally Closed Contact	1
Color Of Cover	yellowyellow RAL 1021)
Pep Code	ENVPEP2506022EN
Pep Verification Date	2018-09-01
Psr Version	PSR-0005-ed2-EN-2016 03 29
Data Source	extrapolated product
Functional-unit Quantity	1
Reference Lifetime In Y	20
Energy Model - Installation [A5]	Electricity mix; AC; <lt/> 1kV; EU-27
Energy Model - End Of Life [C1-c4]	Electricity mix; AC; <lt/> 1kV; EU-27
[Ith] Conventional Free Air Thermal Current	10 A IEC 60947-5-1
[Uimp] Rated Impulse Withstand Voltage	6 kV IEC 60947-1
Short-circuit Protection	10 A cartridge fuse gG IEC 60947-5-1
Number Of Mushroom-shaped Push-buttons	1
Package Weight(Lbs)	165.0 g
Warranty (In Months)	18

Persona Type Names	Charge Point Operator, End User, Contractor, Original Equipment Manufacturer, OEM - Control Panelbuilder, Panel Builder, Electrician, System Integrator, IT Channel Partner
Market Segmentation	Commercial, Industrial
Control Station Application	emergency stop function, emergency switching off function
Electrical Reliability	λ < 10exp(-6) 5 V, 1 mA IEC 60947-5-4, λ < 10exp(-8) 17 V, 5 mA IEC 60947-5-4
Certificate Agency	CSA, UL Listed
Carbon Footprint Of The Distribution Phase [A4]	0.0212891616, 0 kg CO2 eq.
Carbon Footprint Of The Installation Phase [A5]	0.0009953088, 0 kg CO2 eq.
Carbon Footprint Of The Use Phase [B2 B3 B4 B6]	0.1 kg CO2 eq., 0.0609464
Local Publishable Date	2026-03-26
Stocking Flag	Y
Weee Scope	In
Scope Perimeter	At least in Europe
End Of Life Doc Ref	ENVEOLI2506022EN
Reach Full Compliance Status Id	NOT_CONTAINING_SVHC
Rohs Eur In Scope	No
Rohs Eur Conformity Date	1930
China Rohs In Scope	Yes
With Recycled Cardboard	No
Product Contributes To Saved And Avoided Emissions	No
Tier	1
Function Option	Standard
Compatibility Code	XALK
Contacts Material	silver alloy (Ag/Ni)
Dc Control Voltage	125-600 V
Housing Material	plastic
Mechanical Durability	300000 cycles
Operating Travel	1.5 mm NC changing electrical state)4.3 mm total travel)
Operators Description	red unmarked 1 NC
Positive Opening	with IEC 60947-5-1 appendix K
Product Destination	for XB5 Ø 22 mm control and signalling units
Protective Treatment	TH
Reset	turn to release
Returnability	Yes
Software Version	EIME v5.8.1
Tightening Torque	0.8-1.2 N.m IEC 60947-1
Vibration Resistance	5 gn (f= 12-500 Hz) conforming to IEC 60068-2-6
Ac Control Voltage 50 Hz	120-600 V
Number Of Command Positions	1
Color Of Base Of Enclosure	light grey RAL 7035)
Housing Color	yellow
Database Version	2016-11
Pcr Version	PCR-ed3-EN-2015 04 02
Type Of Verification For The Pep	Independent internal review
Functional-unit Description	To provide Stop, Start or Combined functions on 10A electrical load for 20 years at 30% use rate with 0.5W power use.
Functional-unit Unit	unité (unit)
Energy Model - Manufacturing [A1-a3]	Energy model used: France
Energy Model - Use [B6]	Electricity mix; AC; <lt/> 1kV; EU-27
Recyclability Potential In %	18
[Ui] Rated Insulation Voltage	600 V 3)IEC 60947-1
Connections - Terminals	screw clamp terminals, = 1 x 0.22 mm² without cable end IEC 60947-1
Emergency Power Off (Epo)	no
Nbr. Of Units In Pkg.	1
Take-back	No
Customs Code	8536509035

Environment Attributes Main

Ambient Air Temperature For Operation	-40-70 °C, -40-70 °C
Ip Degree Of Protection	IP66 IEC 60529, IP67, IP69, IP69K, IP66/IP67/IP69/IP69K
Take Back	No
Recycled Metal Content At Cr Level	0 %
Toxic Heavy Metal Free	Yes
Carbon Footprint	1.1883158397
Environmental Disclosure	ENVPEP2506022EN
Packaging Made With Recycled Cardboard	No
Reach Free Of Svhc	Yes
Pep Code	ENVPEP2506022EN
Pcr Version	PCR-ed3-EN-2015 04 02
Type Of Verification For The Pep	Independent internal review

Ambient Air Temperature For Storage	-40-70 °C, -40-70 °C
Nema Degree Of Protection	/13, NEMA 13, NEMA 4X
Reach Free Shvc	Yes
China Rohs Regulation	X
Mercury Free	Yes
Circularity Profile	ENVEOLI2506022EN
Eu Rohs Directive	Compliant
Packaging Without Single Use Plastic	No
Reach Regulation	Free of Substances of Very High Concern above the threshold
Pep Verification Date	2018-09-01
Psr Version	PSR-0005-ed2-EN-2016 03 29