Schneider Electric Harmony XALK Emergency Stop Station Push-to-Lock/Turn-to-Release 1 NO + 1 NC

Schneider Electric XALK178E is a complete emergency-stop control station in a polycarbonate enclosure, fitted with a red Ø 40 mm push-to-lock/turn-to-release mushroom head and a 1 NO + 1 NC slow-break contact block with positive opening per IEC 60947-5-1 Annex K. The light-grey RAL 7035 base carries a yellow RAL 1021 cover, with one knock-out for cable entry up to 14 mm and two knock-outs for Pg 13 and ISO M20 glands. Rated for 120-600 V AC 50/60 Hz and 125-600 V DC control voltage, with 300,000-cycle mechanical durability. Typical use is the accessible emergency-stop station on machinery and process plant.

Manufacturer part number (MPN)

XALK178E

EAN / GTIN

3389110113662

Sales unit

pcs

Package quantity

40 pcs

Contact configuration

NO / NC

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 marking

Contact operation

Slow-break

AC control voltage 50 HZ

120…600 V

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

AC control voltage 60 HZ

120…600 V

Product weight

0.194 kg

DC control voltage

125…600 V

Resistance to high pressure washer

7000000 Pa at 55 °C, distance : 0.1 m

Number of command positions

1

Number of indicator lights

0

Number of push buttons

0

Positive opening

With conforming to IEC 60947-5-1 appendix K

Operating travel

1.5 mm (NC changing electrical state); 2.6 mm (NO changing electrical state); 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, = 1 x 0.22 mm² without cable end conforming to IEC 60947-1

Number of key switches

0

Tightening torque

0.8…1.2 N.m conforming to IEC 60947-1

Shape of screw head

Cross compatible with Philips no 1 screwdriver; Cross compatible with pozidriv No 1 screwdriver; Slotted compatible with flat Ø 4 mm screwdriver; Slotted compatible with flat Ø 5.5 mm screwdriver

Contacts material

Silver alloy (Ag/Ni)

Short-circuit protection

10 A cartridge fuse type gG conforming to IEC 60947-5-1

[Ith] conventional free air thermal current

10 A conforming to IEC 60947-5-1

Number of mushroom-shaped push-buttons

1

[Ui] rated insulation voltage

600 V (pollution degree 3) conforming to IEC 60947-1

[Uimp] rated impulse withstand voltage

6 kV conforming to IEC 60947-1

[Ie] rated operational current

3 A at 240 V, AC-15, A600 conforming to IEC 60947-5-1; 6 A at 120 V, AC-15, A600 conforming to IEC 60947-5-1; 0.1 A at 600 V, DC-13, Q600 conforming to IEC 60947-5-1; 0.27 A at 250 V, DC-13, Q600 conforming to IEC 60947-5-1; 0.55 A at 125 V, DC-13, Q600 conforming to IEC 60947-5-1; 1.2 A at 600 V, AC-15, A600 conforming to IEC 60947-5-1

Electrical durability

1000000 cycles, AC-15, 2 A at 230 V, operating rate <3600 cyc/h, load factor: 0.5 conforming to IEC 60947-5-1 appendix C; 1000000 cycles, AC-15, 3 A at 120 V, operating rate <3600 cyc/h, load factor: 0.5 conforming to IEC 60947-5-1 appendix C; 1000000 cycles, AC-15, 4 A at 24 V, operating rate <3600 cyc/h, load factor: 0.5 conforming to IEC 60947-5-1 appendix C; 1000000 cycles, DC-13, 0.2 A at 110 V, operating rate <3600 cyc/h, load factor: 0.5 conforming to IEC 60947-5-1 appendix C; 1000000 cycles, DC-13, 0.5 A at 24 V, operating rate <3600 cyc/h, load factor: 0.5 conforming to IEC 60947-5-1 appendix C

Emergency power off

No

Electrical reliability

Λ < 10exp(-6) at 5 V, 1 mA conforming to IEC 60947-5-4; Λ < 10exp(-8) at 17 V, 5 mA conforming to 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

Protective treatment

TH

Ambient air temperature for storage

-40…70 °C

Ambient air temperature for operation

-40…70 °C

Overvoltage category

Class II conforming to IEC 60536

IP degree of protection

IP66 conforming to 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 (duration = 18 ms) for half sine wave acceleration conforming to IEC 60068-2-27; 50 gn (duration = 11 ms) for half sine wave acceleration conforming to IEC 60068-2-27

Number of Units in Package 1

1

Number of Units in Package 2

40

Number of Units in Package 3

320

Country of origin

CZ

Warranty (in months)

18

Unlocking method

Turn-release

Degree of protection (IP)

IP66

Mounting method

Surface mounting

With lighting

No

Hole diameter

22.5 mm

Connection type auxiliary circuit

Screw connection

Diameter cap

40 mm

HS Code

8536.50

• EAN 3389110113662
• SAP 1000253911
• Code 81142571