Lovato GLX421000 is a 1000 A fourth-pole add-on with simultaneous switching operation, designed for the GL1000C1 switch disconnector in high-current industrial power distribution applications.
£284.53
The Lovato GLX421000 is a dedicated fourth-pole add-on designed for the Lovato GL1000C1 1000 A switch disconnector. It allows a compatible three-pole GL switch disconnector to be configured with a fourth power pole while maintaining simultaneous closing operation with the main switch poles.
Designed as part of the Lovato GL switch disconnector accessory range, the GLX421000 provides the same substantial electrical capability required by the 1000 A frame. Its IEC conventional free-air thermal current Ith is 1000 A, with AC-21A, AC-22A and AC-23A operational current ratings of 1000 A at 400, 500 and 690 V AC.
The fourth pole has a rated insulation voltage of 1000 V and a rated impulse withstand voltage of 12 kV. Heavy-duty M12 × 40 terminals and a mechanical endurance of 5000 operating cycles make it a robust matched accessory for high-current industrial switchboards and power distribution assemblies.
The Lovato GLX421000 provides a practical way to add a fourth switched power pole to a compatible GL1000C1 switch disconnector. The additional pole operates simultaneously with the existing switch disconnector poles, creating a coordinated four-pole switching arrangement for applications where an additional conductor must be disconnected with the main circuit.
With its 1000 A thermal and operational current capability, high insulation rating and heavy-duty terminals, the GLX421000 is engineered to complement the electrical performance of the GL1000C1 rather than functioning as a separate standalone switching device.
| HS Code | 85365080 |
|---|---|
| Manufacturer | Lovato Electric |
| Series | GLX / GL accessories |
| Model | GLX421000 |
| Product type | Fourth-pole add-on |
| Number of additional poles | 1 |
| Compatible switch disconnector | GL1000C1 |
| Operation | Simultaneous closing with switch disconnector poles |
| IEC conventional free-air thermal current Ith | 1000 A at ≤40 °C |
| Rated insulation voltage Ui | 1000 V |
| Rated impulse withstand voltage Uimp | 12 kV |
| AC-21A operational current | 1000 A at 400 / 500 / 690 V AC |
| AC-22A operational current | 1000 A at 400 / 500 / 690 V AC |
| AC-23A operational current | 1000 A at 400 / 500 / 690 V AC |
| AC-23A operational power | 800 kW at 690 V AC |
| AC-23A making capacity at 400 V | 10,000 A |
| AC-23A breaking capacity at 400 V | 8000 A |
| Maximum power dissipation per pole | 63 W |
| Mechanical life | 5000 cycles |
| Terminal type | M12 × 40 |
| Terminal tightening torque | 50–75 Nm |
| IEC conductor section | Minimum 2 × 185 mm² |
| Normal operating position | Vertical plane |
| Permitted operating position | Any |
| Operating temperature | −25 to +55 °C |
| Package quantity | 1 |
| Weight | approx. 1.98 kg |
The GLX421000 is a fourth-pole add-on used to add an additional switched power pole to a compatible Lovato GL1000C1 switch disconnector.
The GLX421000 is specifically designed for the Lovato GL1000C1 1000 A switch disconnector.
The fourth pole has an IEC conventional free-air thermal current Ith of 1000 A and an AC-23A operational current rating of 1000 A at up to 690 V AC.
Yes. The GLX421000 is designed for simultaneous closing operation with the switch disconnector poles, providing coordinated four-pole switching.
No. The GLX421000 is a single fourth-pole accessory intended to be fitted to the compatible Lovato GL1000C1 switch disconnector.
Lovato Electric GL accessories are engineered to complement GL switch disconnectors with matched components for flexible, dependable high-current power isolation and distribution assemblies.
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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...