GAZM160ET8 - 4P 160A CHANGEOVER METAL ENCLOSED SWITCH

Why Choose the GAZM160ET8?

The Lovato GAZM160ET8 is a four-pole line changeover switch with I-0-II positions, supplied in a robust IEC/EN IP65 metal enclosure. Rated at 160 A, it enables dependable source selection and isolation in demanding environments. Compact enclosure dimensions of 300x400x120 mm (11.8x15.8x4.7'') make panel integration straightforward while maintaining ingress protection on the front. Designed for AC systems, it aligns with IEC/EN 60947-3 and 60947-1.

Electrical performance includes Ui 1000 V, Uimp 8 kV and a conditional short-circuit current of 50 kA with gG160 fuse protection. AC21A is 160 A at 400–690 V; AC22A is 160 A at 400 V and 125 A at 500–690 V; AC23A is 125 A at 400 V, 100 A at 500 V and 47 A at 690 V, with 55 kW at 400 V. Mechanical life is 30,000 cycles; IP65 frontal; -25 to +55 °C.

Key Benefits

• Four-pole I-0-II switching for safe source changeover.
• IP65 metal enclosure protects against dust and water ingress.
• 160 A rating for AC21A at 400–690 V.
• High insulation and impulse ratings: Ui 1000 V, Uimp 8 kV.
• Conditional short-circuit rating 50 kA with gG160 fuse.
• Wide operating temperature range -25 to +55 °C.
• Long service life with 30,000 mechanical cycles.

Technical Specification

• Product type designation: GAZM
• Number of poles: 4
• Operating voltage type: AC
• Ith (IEC): 160 A
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 8 kV
• Operating current Ie AC21A 400 V: 160 A
• Operating current Ie AC21A 500 V: 160 A
• Operating current Ie AC21A 690 V: 160 A
• Operating current Ie AC22A 400 V: 160 A
• Operating current Ie AC22A 500 V: 125 A
• Operating current Ie AC22A 690 V: 125 A
• Operating current Ie AC23A 400 V: 125 A
• Operating current Ie AC23A 500 V: 100 A
• Operating current Ie AC23A 690 V: 47 A
• Power dissipation per pole (max): 12 W
• Rated operational power AC23A 400 V: 55 kW
• Rated operational power AC23A 690 V: 45 kW
• Conditional short-circuit current (rms): 50 kA
• Short-circuit protection fuse: gG160
• Making capacity AC23A 400 V: 1250 A
• Breaking capacity AC23A 400 V: 1000 A
• Mechanical life: 30000 cycles
• Electrical life AC21A: 1500 cycles
• Terminal tightening torque: 5 to 6 Nm
• Conductor section (IEC): 4 to 70 mm²
• Operating temperature: -25 to +55 °C
• Storage temperature: -40 to +70 °C
• Max altitude: 3000 m
• IP degree (frontal): IP65
• Pollution degree: 3

What’s Included

• GAZM160ET8 four-pole line changeover switch in IP65 metal enclosure
• I-0-II front selector and terminals
• Documentation (datasheet/installation guidance)

Applications

• Mains and backup power source changeover in distribution panels
• Industrial and commercial switchboards requiring IP65 enclosed switching
• Load switching within AC21A/AC22A/AC23A ratings
• Generator changeover and maintenance isolation duties

Safety note: Installation and commissioning must be performed by qualified personnel. Always isolate the supply before work, protect with the specified gG160 fuse, and operate within the stated ratings and environmental limits.