GAZM125ET8 - 4P 125A CHANGEOVER METAL ENCLOSED SWITCH

Why Choose the GAZM125ET8?

Lovato’s GAZM125ET8 is a four-pole line changeover switch (I-0-II) supplied in a robust IEC/EN IP65 metal enclosure. Rated 125 A, it provides dependable source selection and isolation in demanding industrial settings. The compact 300×400×120 mm enclosure simplifies panel integration while protecting against dust and water ingress, helping maintain uptime and safety across a wide range of AC applications.

Engineered for reliability, the GAZM range delivers Ui 1000 V and Uimp 8 kV, with AC21A/AC22A currents up to 125 A at 690 V. AC23A performance reaches 125 A and 55 kW at 400 V (45 kW at 690 V). Durable mechanics offer 30,000 cycles, with 4 to 70 mm² terminals tightened to 5 to 6 Nm, operating from −25 to +55 °C up to 3000 m.

Key Benefits

• IP65 metal enclosure for strong dust and water ingress protection.
• Four-pole I-0-II changeover ensures safe source isolation and selection.
• 125 A Ith and AC21A/AC22A ratings maintained up to 690 V.
• High AC23A performance: 55 kW at 400 V, 45 kW at 690 V.
• Withstands 8 kV impulse; Ui rated to 1000 V.
• Durable: mechanical and electrical life of 30,000 cycles.
• Wide operating temperature −25 to +55 °C; up to 3000 m altitude.
• Secure terminations with 5 to 6 Nm torque for 4 to 70 mm² conductors.

Technical Specification

• Product type designation: GAZM
• Number of poles: 4
• Operating voltage type: AC
• Ith (IEC): 125 A
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 8 kV
• Operating current Ie AC21A 400 V: 125 A
• Operating current Ie AC21A 500 V: 125 A
• Operating current Ie AC21A 690 V: 125 A
• Operating current Ie AC22A 400 V: 125 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): 6.3 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: gG125
• Making capacity AC23A 400 V: 1250 A
• Breaking capacity AC23A 400 V: 1000 A
• Mechanical life: 30000 cycles
• Electrical life AC21A: 30000 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
• IP degree of protection: IP65
• Pollution degree: 3

What’s Included

• Lovato GAZM125ET8 four-pole changeover switch pre-installed in IP65 metal enclosure
• Mounting hardware
• Installation instructions
• Manufacturer datasheet

Applications

• Source changeover between two AC supplies with I-0-II positions
• Industrial control panels and distribution boards up to 125 A
• Harsh or dusty environments requiring IP65 metal enclosures
• Motor and resistive load switching within AC23A ratings

Safety note: Installation must be performed by a qualified electrician. Isolate all supplies before work, use the specified short-circuit protection (gG125 fuse), and follow IEC/EN 60947 requirements.