ESM Series Energy Storage HV DC Contactors
High Voltage DC Contactors for Energy Storage, up to 1500VDC (series)
The ESM series is SHR’s high voltage DC contactor family for energy storage systems. Ceramic brazing seal, hydrogen-filled mixed gas contacts, and 1500VDC switching capability deliver safe, long-life DC switching for ESS applications.
Series Specifications
| Sealing (series) | Ceramic brazing seal, hydrogen mixed gas, no arc leakage |
| Contact rated load (series) | 20 A – 800 A |
| Max switching voltage (series) | 1500 VDC |
| Contact form (series) | 1 Form A |
| Contact resistance (series) | ≤5 mΩ (ESM-20) |
| Dielectric withstand voltage (series) | 4000 VAC (contacts / contacts-to-coil) |
| Insulation resistance (series) | 1000 MΩ (1500VDC) |
| Operating temperature (series) | -40°C to +85°C |
Key Highlights
- 1500VDC switching for energy storage systems
- Ceramic seal with hydrogen-filled contacts — no oxidation, no arc leakage
- 20A–800A range covers residential to utility ESS
- 4000VAC dielectric withstand voltage
- Low noise, compact structure
Models in This Series
ESM-20, ESM-150, ESM-250, ESM-350, ESM-400, ESM-600, ESM-800.
Applications
- Energy storage systems (ESS)
- Battery disconnect
- PV inverters
- DC fast charging
All values above are series-level specifications from the official SHR datasheet (ESM series datasheets); individual model ratings may differ. Please refer to the series datasheet or submit an RFQ to confirm the exact configuration for your application.