LIMIT, MICRO AND FOOT SWITCHES - LOVATO ELECTRIC - (Version JPG) - Page n° 2 - PDF Catalogue | Technical Documentation

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Control device, Digital multimeter, Relay, Foot-switch, Human machine interface

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Limit, micro and foot switches

Limit switches, K series

One bottom cable entry. Dimensions to EN 50047

Two side cable entries. Dimensions compatible to EN 5(

'■2

Top push rod plunger


Order code Plastic body	Metal body	Contacts	Plunger material	Qty per pkg	Wt
				n°	[kg]
One bottom cable entry. Dimensions to EN 50047.
KB A1 S11	KM A1 S11	1NO+1NC Snap actionO	Metal	5	©
KB A1 S02	KM A1 S02	2NC Snap actionO	Metal		©
KB A1 A11	KM A1 A11	1NO+1NC Slow break make before breakO	Metal	5	©
KB A1 L11	KM A1 L11	1NO+1NC Slow breakO	Metal	5	©
KB A1 L02	KM A1 L02	2NC Slow breakO	Metal		©
KB A1 L20	KM A1 L20	2NO Slow break	Metal	5	©
KB A1 L12	KM A1 L12	1NO+2NC Slow breakO	Metal	5	©
KB A1 L21	KM A1 L21	2NO+1NC Slow breakO	Metal	5	©
KB A1 L03	KM A1 L03	3NC Slow breakO	Metal	5	©

General characteristics

The LOVATO ELECTRIC limit switches have been designed to satisfy requirements comprising quick installation, wiring ease, simple setup, modularity, sturdiness and constant reliability. The body cover is hinged at the bottom and removable. The innovative locking bayonet mechanism consents to remove and reposition the operating head in the required configuration with no tools. The heads have axial rotation of 45° angles.

The auxiliary contact blocks are removable assuring remarkable wiring simplicity.

Operational characteristics

- Maximum operating rate: 3600 cycles/h

- Switching time: 0.5-1.5m/s

- Mechanical life: >10 million cycles

- Conventional thermal current Ith: 10A

- Designation to IEC/EN 60947-5-1:

• A600 Q300 for KB-KC types

• A300 Q300 for KM-KN types

- Rated insulation voltage Ui:

• 690VAC for KB-KC types

• 440VAC for KM-KN types

- Rated impulse withstand voltage Uimp:

• 6kV for KB-KC types

• 4kV for KM-KN types

- Class II insulation for KB-KC only

KB A... - KM A...

Two side cable entries. Dimensions compatible to EN 50047.


KC A1 S11	KN A1 S11	1NO+1NC Snap actionO	Metal	5	© -
KC A1 S02	KN A1 S02	2NC Snap actionO	Metal	5	©
KC A1 A11	KN A1 A11	1NO+1NC Slow break make before breakO	Metal	5	© _-
KC A1 L11	KN A1 L11	1NO+1NC Slow breakO	Metal	5	©
KC A1 L02	KN A1 L02	2NC Slow breakO	Metal	5	_©-
KC A1 L20	KN A1 L20	2NO Slow break	Metal	5	© ^-_-

Contact resistance: <10mQ Short-circuit backup protection: 10A gG quick fuse Cable connection: Self-releasing screw terminal Degree of protection:

• IP20 for terminals

• IP65 for body housing Operators of aluminium-zinc alloy Housing:

• KB-KC types - Self-extinguishing double-insulation polymer thermoplastic

• KM-KN types - Aluminium-zinc alloy Cable entry: M20 standard supplied; PG13.5 available (see the side note for details) Operating head fixing: Locking bayonet insert Operating force: 5N

Tightening torque for switch fixing: 2.5Nm

KC A... - KN A...

O Direct opening operation 3; safety function according to

email: service@LovatoElectric.com) for details.

- Ambient conditions:

• Operating temperature: -25 ... +70°C

• Storage temperature: -40 ... +70°C

• Suitable for ambient pollution degree: 3.

Certifications and compliance

Certifications obtained: cULus, GOST.

Compliant with standards: EN 50047, IEC/EN 60947-1,

IEC/EN 60947-5-1, IEC/EN 60204-1.

► Forward travel of snap action contacts 4 Return travel of snap action contacts

] open ] closed


K... L02	21-22 11-12
	21-22 11-12	_	_				_
	0 2			-- .4 6mm
K... L20
	13-14 23-24
	13-14 23-24			_
	02			.4 6mm
K... L12	21-22 31-32 13-14			-


	0 2.					6mm
K... L21	31-32 23-24 13-14			^—

					_
	0 2.			4 2	_ .8 6mm
K... L03	11-12 21-22 31-32			-


	0 2.			6mm


K... S11	k 21-22 r 13-14 A 21-22 " 13-14	-	—	—



	0	.1 2		3 6mm
K... S02	k 11-12 " 21-22 A 11-12 " 21-22	-		-



	0	.1 2		3 6mm
K... A11	25-26 17-18			1—		=1
	25-26 17-18	±z
	0 1.4			.5 6mm
K... L11	13-14 21-22					=1
	13-14 21-22
	0 2.1 3.				6mm

Accessories and spare parts Ì f pages 7-16 and 17

Wiring diagrams page W-11

LIMIT, MICRO AND FOOT SWITCHES - LOVATO ELECTRIC - #2

Control device, Digital multimeter, Relay, Foot-switch, Human machine interface