Change-Over Switch AC-21:63A A3 enclosed AL 4-pole Yellow/Red

• Aluminium (KEA) enclosures
• KEM and KEA models consist of two KU or VKA switches connected by a change-over kit and range from 16 to 160 A
• IP66: enclosure types U2, U3, A2
• IP65: enclosure type MF11
• Self-extinguishing material
• Excellent insulating properties
• Wide operating temperature range
• Good resistance against many chemicals
• Good UV resistance
• Padlockable
• Door interlock with defeat mechanism
• IEC 60947-3

• AC-21 (400 V, 415 V, 690 V): Ie = 63A
• AC-22 (400 V, 415 V, 690 V): Ie = 40A
• AC-23 (400 V, 415 V): Ie = 40A; P = 22kW
• AC-23 (690 V): Ie = 32A; P = 30kW
• Switch: 2xKU 440

About Katko

Katko is a specialised manufacturer of modern load break switches. Katko produces a wide range of load break switches, switch fuses, safety switches and motor protection switches as well as accessories for them - in its highly automated manufacturing facilities both in Finland and Poland.

Katko's product portfolio also covers a full range of enclosed switches in polycarbonate, ABS, aluminium, stainless steel and sheet steel to match all EMC and ATEX specifications in whatever area.

One of Katko's strengths is the expertise in designing and producing modifications.

Katko switches are used in a broad spectrum of applications and industries – ranging from:
Food Industry, Clean Air, Heavy Industry, Hazardous and Demanding Areas, Power Distribution to Renewable Energy - just a few areas where Katko switches are in use.