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Dedicated DC Protection and Metering
Multi-functional DC trip relay provides precise metering for current, voltage, and power, along with a range of protective functions.
The Susol DC Air Circuit Breaker (ACB) is designed for 1500 V DC systems such as UPS, photovoltaic, and energy storage applications. Engineered for the arc characteristics of DC circuits, the high-capacity units provide reliable interrupting performance for demanding DC power systems. With intelligent trip relay functions for protection, metering, and diagnostics, along with flexible installation configurations, the Susol DC ACB supports stable and efficient power system operation.
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Multi-functional DC trip relay provides precise metering for current, voltage, and power, along with a range of protective functions.
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Self-diagnostics, fault event records, and waveform storage support fast fault analysis and troubleshooting.
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An isolator structure provides convenient operation during dielectric withstand testing.
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Short busbar options are available to support applications where temperature performance is a consideration.
| Frame | Type | Max. Operational Voltage(Ue) | Ampere Frame | Breaking Capacity | Applicable Standard |
|---|---|---|---|---|---|
E |
ADH | 1200 Vdc (4P) / 750 Vdc (3P) | 1600, 2500, 3200, 4000 AF | 35 kA@1200 Vdc(4P) 60 kA@ 500 Vdc(3P) |
IEC60947-2 |
| ADH | 1200 Vdc (4P) / 750 Vdc (3P) | 1600, 2500, 3200, 4000 AF | 40 kA@1200 Vdc(4P) 85 kA@ 500 Vdc(3P) |
IEC60947-2 | |
| ADV | 1500 Vdc (4P) / 1000 Vdc (3P) | 1600, 2500, 3200, 4000 AF | 50 kA@1500 Vdc(4P) 60 kA@ 750 Vdc(3P) |
IEC60947-2 | |
| ADV | 1500 Vdc (4P) / 1000 Vdc (3P) | 1600, 2500, 3200, 4000 AF | 60 kA@1500 Vdc(4P) 70 kA@ 750 Vdc(3P) |
IEC60947-2 |
| Frame | Type | Max. Operational Voltage(Ue) | Ampere Frame | Rated Short-time Withstand Current (Icw) | Applicable Standard |
|---|---|---|---|---|---|
D |
DDH | 1200 Vdc (4P) / 750 Vdc (3P) | 800, 1000, 1250, 1600, 2000 AF | 100 kA/1 s | IEC 60947-3 |
| DDV | 1500 Vdc (4P) / 1000 Vdc (3P) | 800, 1000, 1250, 1600, 2000, 2500 AF | 100 kA/1 s | IEC 60947-3 | |
E |
DDU | 750 Vdc (2P) | 800, 1000, 1250, 1600, 2000, 2500, 3200, 4000, 5000, 6300 AF | 100 kA/1 s | IEC 60947-3 |
| DDH | 1200 Vdc (4P) / 750 Vdc (3P) | 800, 1000, 1250, 1600, 2000, 2500, 3200, 4000 AF | 150 kA/1 s | IEC 60947-3 | |
| DDV | 1500 Vdc (4P) / 1000 Vdc (3P) | 800, 1000, 1250, 1600, 2000, 2500, 3200, 4000 AF | 150 kA/1 s | IEC 60947-3 | |
| DDX | 1800 Vdc (4P) / 1000 Vdc (3P) | 800, 1000, 1250, 1600, 2000, 2500, 3200, 4000 AF | 100 kA/1 s | IEC 60947-3 | |
| DDZ | 2500 Vdc (4P) | 800, 1000, 1250, 1600, 2000, 2500, 3200, 4000AF | 100 kA/1 s | IEC 60947-3 | |
G |
DDH | 1200 Vdc (4P) / 750 Vdc (3P) | 4000, 5000, 6300, 7000 AF | 150 kA/1 s | IEC 60947-3 |
| DDV | 1500 Vdc (4P) / 1000 Vdc (3P) | 4000, 5000, 6300, 7000 AF | 150 kA/1 s | IEC 60947-3 |
Discover how our real-time monitoring and precise control capabilities drive operational efficiency, ensure compliance,
and maintain 24/7 continuity across the most demanding global markets.

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