Lovato GA040ET8 is a four-pole 40 A assembled AC change-over switch with 1000 V insulation voltage and screw or 35 mm DIN rail mounting for industrial and commercial power switching applications.
£135.24
The Lovato GA040ET8 is a robust four-pole 40 A assembled change-over switch designed for manual switching between two electrical supplies or circuits in industrial and commercial power distribution systems. As part of the Lovato GA switch disconnector series, it combines reliable switching performance with a compact design suitable for control panels, switchboards and machinery.
The GA040ET8 is designed for AC applications and provides four-pole switching, making it suitable for systems where all four conductors need to be switched. Its 40 A conventional free-air thermal current, high insulation rating and industrial utilisation categories make it suitable for a broad range of power switching duties.
With rated operational currents of up to 40 A at 690 V AC for AC-21A and AC-22A duties, the GA040ET8 provides dependable performance for resistive and mixed loads. For AC-23A motor and highly inductive load applications, it is rated at 40 A at 400 V AC and 25 A at 500–690 V AC. Installation is flexible, with mounting by screws onto a plate or directly onto a 35 mm DIN rail.
Change-over switches allow an electrical circuit or load to be manually transferred between two supply sources or switching paths. The Lovato GA040ET8 combines four-pole switching with industrial AC utilisation ratings, making it suitable for power distribution arrangements where dependable manual change-over operation is required.
The GA series is designed for professional electrical installations and offers flexible mounting, robust terminals and high switching endurance. With ratings covering AC-21A, AC-22A and AC-23A duties, the GA040ET8 can be used across applications ranging from general resistive loads to mixed and highly inductive electrical loads.
| Manufacturer | Lovato Electric |
|---|---|
| Series | GA Switch Disconnectors |
| Model | GA040ET8 |
| Product type | Assembled change-over switch |
| Operating voltage type | AC |
| Number of poles | 4 |
| IEC conventional free-air thermal current Ith | 40 A at ≤40 °C |
| Rated insulation voltage Ui | 1000 V |
| Rated impulse withstand voltage Uimp | 8 kV |
| AC-21A operational current | 40 A at 400–690 V AC |
| AC-22A operational current | 40 A at 400–690 V AC |
| AC-23A operational current | 40 A at 400 V AC; 25 A at 500–690 V AC |
| AC-23A operational power | 18.5 kW at 400 V AC; 22 kW at 690 V AC |
| Maximum power dissipation per pole | 1 W |
| Conditional short-circuit current | 10 kA rms |
| Recommended short-circuit protection | gG 40 A fuse |
| AC-23A making capacity at 400 V | 400 A |
| AC-23A breaking capacity at 400 V | 320 A |
| Mechanical life | 100,000 cycles |
| Electrical life AC-21A | 100,000 cycles |
| Mounting type | Screw on plate or 35 mm DIN rail |
| Terminal type | Pillar |
| Terminal screw | M4 |
| Terminal tightening torque | 1.8–2 Nm |
| IEC conductor cross-section | 0.75–16 mm² |
| Operating temperature | -25 to +55 °C |
| Storage temperature | -40 to +70 °C |
| Maximum altitude | 3000 m |
| Frontal protection rating | IP20 |
| Pollution degree | 3 |
| Package quantity | 1 |
| EAN-13 | 8013975270240 |
| HS code | 85365080 |
The GA040ET8 is a four-pole assembled change-over switch used to manually switch an electrical load or circuit between two supply sources or switching paths.
The GA040ET8 has an IEC conventional free-air thermal current rating of 40 A at temperatures up to 40 °C.
The switch is rated for 40 A at 400–690 V AC under AC-21A and AC-22A. Under AC-23A it is rated for 40 A at 400 V AC and 25 A at 500–690 V AC.
The GA040ET8 can be screw-mounted onto a plate or installed on a 35 mm DIN rail, providing flexibility for switchboard and control-panel installations.
The GA040ET8 has a rated insulation voltage Ui of 1000 V and a rated impulse withstand voltage Uimp of 8 kV.
Lovato GA switch disconnectors and assembled change-over switches provide panel builders, OEMs and electrical engineers with reliable manual switching solutions for industrial machinery, control panels and power distribution systems.
● Service Agreements
Credit Accounts
Our service agreements are built to support long term procurement relationships. By working closely with engineering teams and procurement departments, we help streamline purchasing processes while ensuring consistent access to critical components and sourcing support when it matters most.
● frequently asked questions
At Led Controls Ltd we help engineers source the right automation and control gear with confidence. below are quick answers to what we are asked most often.
We supply all leading manfacturers in our industry. we offer next day delivery on most poplour products.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
Your content goes here. Edit or remove this text inline or in the module Content settings. You can also style every aspect of this content in the module Design settings and even apply custom CSS to this text in the module Advanced settings.
● latest blog
LED Controls is a specialist distributor of factory automation and industrial controls, supplying OEMs, machine builders, panel builders and end users throughout the UK and worldwide. As a trusted UK distributor for many of the world’s leading automation manufacturers, we provide industrial control products, technical expertise and bespoke automation solutions backed by outstanding customer service.
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...
2025 has been a big year for LED Controls, and our blog has expanded accordingly. We've covered a wide range of topics across industrial control and factory automation this year. From core technology explainers and new product releases to panel building best practice...