GAZ040ET8 - 4P CHANGEOVER SWITCH 40A ENCLOSED

Why Choose the GAZ040ET8?

The Lovato GAZ040ET8 is a four-pole I-0-II line changeover switch supplied in a UL/CSA Type 4/4X non-metallic enclosure, ideal for dependable source transfer. Rated 40 A with IP65 frontal protection, it suits demanding industrial and building services. Compact enclosure dimensions of 175x210x149mm (6.9x8.3x5.9'') simplify installation in panels and wall-mounted applications.

Engineered for reliability, it offers Ui 1000 V and Uimp 8 kV, with AC21/AC22 currents of 40 A up to 690 V. AC23A handling is 40 A/18.5 kW at 400 V and 25 A at 500–690 V. Durable 100,000-cycle life, 0.75–16 mm² terminals tightened to 1.8–2 Nm, and operation from −25 to +55 °C up to 3000 m meet rigorous standards.

Key Benefits

• UL/CSA Type 4/4X non-metallic enclosure with IP65 frontal protection.
• Four-pole I-0-II changeover ensures safe, clear source selection.
• 40 A Ith with AC21/AC22 40 A ratings up to 690 V.
• High insulation: Ui 1000 V and 8 kV impulse withstand.
• AC23A performance: 18.5 kW at 400 V, 25 A at 500–690 V.
• Long service life: 100,000 mechanical and electrical cycles at AC21A.
• Wide operating range: −25 to +55 °C and up to 3000 m.
• Easy wiring: 0.75–16 mm² conductors and 1.8–2 Nm terminal torque.

Technical Specification

• Product type designation: GAZ
• Number of poles: 4
• Operating voltage type: AC
• Ith (IEC): 40 A
• Rated insulation voltage Ui (IEC/EN): 1000 V
• Rated impulse withstand voltage Uimp: 8 kV
• Operating current Ie AC21A 400 V: 40 A
• Operating current Ie AC21A 500 V: 40 A
• Operating current Ie AC21A 690 V: 40 A
• Operating current Ie AC22A 400 V: 40 A
• Operating current Ie AC22A 500 V: 40 A
• Operating current Ie AC22A 690 V: 40 A
• Operating current Ie AC23A 400 V: 40 A
• Operating current Ie AC23A 500 V: 25 A
• Operating current Ie AC23A 690 V: 25 A
• Power dissipation per pole (max): 1 W
• Rated operational power AC23A 400 V: 18.5 kW
• Rated operational power AC23A 690 V: 22 kW
• Conditional short-circuit current (rms): 10 kA
• Short-circuit protection fuse: gG40
• Making capacity AC23A 400 V: 400 A
• Breaking capacity AC23A 400 V: 320 A
• Mechanical life: 100000 cycles
• Electrical life AC21A: 100000 cycles
• Terminal tightening torque: 1.8 to 2 Nm
• Conductor section (IEC): 0.75 to 16 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

• GAZ040ET8 four-pole line changeover switch in non-metallic enclosure
• Installation and safety instructions

Applications

• Mains-to-generator changeover for backup power systems
• Switching between dual utility supplies or UPS bypass sources
• Safe source selection in distribution boards and panel assemblies
• Industrial machinery, HVAC and pump control supply transfer
• Maintenance bypass and service changeover in plant rooms

Safety note: Installation must be performed by a qualified electrician. Isolate all supplies before work, use the specified gG40 fuse, and observe the stated ratings and applicable standards.