Lovato GX20J077O is a key-operated GX20 series 3-pole ON/OFF rotary cam switch with a 20 A conventional thermal current rating and 690 V insulation voltage for controlled industrial electrical switching.
£97.55
The Lovato GX20J077O is a robust key-operated rotary cam switch designed for controlled switching of industrial electrical circuits, machinery and automation equipment. Part of the Lovato GX20 rotary cam switch series, it combines the compact square-shaped GX contact-block design with key-controlled operation to help restrict switching to authorised personnel.
This model uses switching diagram 07, corresponding to a 3-pole ON/OFF switching arrangement. The key-operated actuator provides an additional level of operational control compared with a conventional rotary handle, making the GX20J077O particularly suitable for machinery and installations where accidental or unauthorised switching needs to be reduced.
The GX20 platform provides an IEC/EN conventional free-air thermal current of 20 A, a rated insulation voltage of 690 V and a rated impulse withstand voltage of 6 kV. Its compact construction and durable cam mechanism make it suitable for integration into industrial control panels, machine interfaces and OEM electrical equipment.
Key-operated rotary cam switches such as the Lovato GX20J077O use a mechanical cam mechanism to change the state of electrical contacts when the authorised operator turns the key between defined positions. The 3-pole ON/OFF arrangement allows several circuit conductors to be switched simultaneously while the key actuator helps prevent unintended operation.
The GX series is designed for reliable switching of main and auxiliary circuits in industrial equipment. The GX20J077O is particularly useful where machine builders and control engineers require dependable manual switching combined with controlled operator access, including machinery, production equipment and specialised electrical control panels.
| HS Code | 85365080 |
|---|---|
| Manufacturer | Lovato Electric |
| Series | GX20 |
| Model | GX20J077O |
| Product type | Key-operated rotary cam switch |
| Switching function | 3-pole ON/OFF |
| Switching diagram | 07 |
| Number of poles | 3 |
| Number of elements | 2 |
| Actuator type | Key operated |
| Contact block | Square-shaped |
| Conventional free-air thermal current Ith | 20 A IEC/EN |
| UL/CSA conventional thermal current | 15 A |
| Rated insulation voltage Ui | 690 V IEC/EN |
| UL/CSA rated insulation voltage | 600 V |
| Rated impulse withstand voltage Uimp | 6 kV |
| Rated operational voltage | 440 V |
| Rated operational impulse voltage | 4 kV |
| AC-1 / AC-21A operational current | 20 A |
| AC-15 operational current at 110 V | 10 A |
| AC-15 operational current at 220/230 V | 8 A |
| AC-15 operational current at 380/400 V | 6 A |
| Maximum gG fuse for short-circuit protection | 20 A |
The Lovato GX20J077O is used for key-controlled ON/OFF switching of industrial electrical circuits in machinery, control panels and automation equipment.
The GX20J077O uses switching diagram 07, providing a 3-pole ON/OFF switching arrangement.
The GX20 series has an IEC/EN conventional free-air thermal current rating of 20 A.
The key-operated actuator helps restrict operation of the switch to personnel with access to the appropriate key, making it useful for controlled industrial switching applications.
The GX20 platform has an IEC/EN rated insulation voltage of 690 V and a rated impulse withstand voltage of 6 kV.
Lovato Electric GX rotary cam switches provide panel builders, machine manufacturers and automation engineers with compact construction, dependable electrical switching and flexible operator configurations for industrial control applications.
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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...