The HGL transfer isolation switch is designed for industrial distribution equipment. It is suitable for AC 50Hz systems with rated voltage up to AC660V, DC voltage up to 440V and rated thermal current up to 3200A, providing isolation and transfer switching functions for low-voltage power distribution.
Key Features
- Spring-stored energy and instant-release mechanism for accelerated opening and closing.
- Parallel double-breakpoint contact structure for improved electrical and mechanical performance.
- Suitable for industrial enterprise distribution equipment.
- Available across multiple current frames from 160A to 3200A.
- Supports 3-pole and 4-pole configurations according to the listed weight data.
General Ratings
| Rated thermal current Ith | 160A, 250A, 400A, 630A, 1000A, 1250A, 1600A, 2500A, 3200A |
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| Rated insulation voltage Ui | 800V, 1000V |
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| Dielectric strength | 3000V, 3500V |
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| Rated impulse withstand voltage Uimp | 8kV, 12kV |
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| Rated operational voltage Ue | AC400V, AC660V |
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| Rated frequency | 50Hz |
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| Utilization category | AC-21, AC-22, AC-23 |
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| Rated making capacity | 10Ie |
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| Rated breaking capacity | 8Ie |
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Operational Current Ratings
| Voltage / Category | Listed Current Range |
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| AC400V AC-21 | 160A to 3200A |
| AC400V AC-22 | 160A to 3200A |
| AC400V AC-23 | 160A to 2500A |
| AC660V AC-21 | 160A to 3200A |
| AC660V AC-22 | 100A to 1250A |
| AC660V AC-23 | 63A to 500A for listed frames; not listed for 2500A and 3200A frames |
Short-Circuit And Life Data
| Rated short-circuit making capacity Icm | 12kA, 17kA, 30kA, 40kA, 70kA, 100kA depending on frame |
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| 1s short-time withstand current Icw | 10kA, 12kA, 20kA, 25kA, 50kA, 70kA depending on frame |
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| Mechanical life | 5000, 3000, 2000 or 1000 operations depending on frame |
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| Electrical life | 1000, 600 or 300 operations depending on frame |
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| Operating torque | 6.5N·m, 10N·m, 15N·m, 27N·m, 50N·m depending on frame |
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| Auxiliary switch parameter | AC-15 230V 3A, 50Hz |
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