High Voltage Contactors
RXS1K Series
The RXS1K Series are hermetically sealed high voltage DC contactors designed for high-current DC power switching in demanding, space-constrained systems. Rated for continuous currents up to 1,000 A and system voltages up to 1,500 VDC, the RXS1K Series features bi-directional main contacts and mechanically linked SPDT auxiliary contacts for accurate position feedback. The hermetic ceramic seal with gas fill provides exceptional protection against moisture, dust, and contaminants. Built in a compact rectangular form factor, the RXS1K Series offers performance approaching the RXR1K MegaTactor Series while enabling easier integration in space-limited enclosures. These contactors are well suited for system-level power control in large-scale energy, stationary infrastructure, and heavy-duty DC power systems where continuous current requirements do not exceed 1,000 A.
Watch the 1-minute video- Continuous duty
- 1,000 A
- System voltage
- 1,500 VDC
- Mechanical life
- 500,000 cycles
- Dielectric withstand
- 5,400 VRMS
Features and applications
RXS1K at a glance
Features
- Hermetic ceramic seal with gas fill for superior carry and switching performance
- Bi-directional DC power switching
- Mechanically linked SPDT auxiliary contacts for accurate main contact position feedback
- Integrated coil economizer for optimized power consumption
- RoHS and REACH compliant
- UL 60947-4 pending
Typical applications
- Large-scale battery energy storage systems (BESS)
- Stationary energy storage and power conversion systems
- High-density data center DC backup power systems
- Grid-connected DC power distribution
- Utility-scale renewable energy systems
- High-power industrial DC power control
- Space-constrained system-level DC switching applications
Datasheet
Graphs, dimensions, drawings and installation notes are in the RXS1K datasheet (Rev C).
Download datasheetDatasheet specifications
RXS1K performance
| Contact Arrangement | Form X, SPST- NO |
|---|---|
| Max Switching Voltage | 1,500 VDC |
| Dielectric Withstand Voltage (Leakage <1 mA) Between Open Contacts | 5,400 VRMS |
| Dielectric Withstand Voltage (Leakage <1 mA) Between Contacts to Coil | 5,400 VRMS |
| Mechanical Life | 500,000 cycles |
| Continuous Current (600 mm² conductor) | 1,000 A |
| Overload Current 90 seconds | 2,000 A |
| Overload Current 15 seconds | 3,500 A |
| Short Circuit Withstanding 2 milliseconds | 10,000 A |
| Make and Break | See Table 2 |
| Min Insulation Resistance | 100 MΩ @ 1,000 V (50 MΩ at end of life) |
| Contact Resistance (Max) measured at 1,000 A | 0.15 mOhm |
| Operate Time (Max, incl bounce) | 90 ms |
| Release Time (Max) | 30 ms |
| Shock - Functional, 1/2 Sine, 11 ms | 10 G Peak |
| Vibration, Sinusoidal (500-2,000 Hz Peak) | 6 G |
| Operating Temperature | -40°C to 85°C (180° max terminal temperature) |
| Sealed Contacts | Exceeds IP69K (hermetically sealed) |
| Salt Fog | MIL-STD-810 |
| Contact Arrangement | SPDT (Normally Open + Normally Closed) |
|---|---|
| Continuous Current | 2 A / 24 VDC |
| Minimum Current | 10 mA @ 8 V |
| Coil | 12 VDC | 24 VDC | 48 VDC |
|---|---|---|---|
| Nominal Voltage | 12 VDC | 24 VDC | 48 VDC |
| Max Voltage | 16 V | 32 V | 64 V |
| Pick-up Voltage, Max | 9 V | 18 V | 36 V |
| Drop-out Voltage | >1.2 V | >2.4 V | >4.8 V |
| Coil Current (pick-up) – max 300 ms | 4.2 A | 2.1 A | 1.1 A |
| Coil Current (hold) - continuous | 0.9 A | 0.45 A | 0.22 A |
| Coil Power (hold) | 10 W | 10 W | 10 W |
| Coil Back EMF (coil suppressed via TVS SMAJ48CA) | 55 V | 55 V | 55 V |
| Voltage | Current | Cycles |
|---|---|---|
| Bi-Directional | ||
| 400 V | 5,000 A | 5 (BREAK ONLY) |
| 1,000 V | 600 A | 5,000 |
| 1,000 V | 800 A | 500 (BREAK ONLY) |
| 1,000 V | 3,000 | 3 (BREAK ONLY) |
| 1,200 V | 500 A | 5,000 |
| 1,500 V | 800 A | 200 (BREAK only) |
| 1,500 V | 1,000 A | 50 (BREAK only) |
Table 2 of the RXS1K datasheet, Rev C, as printed. Resistive load; 1 cycle = 1 make + 1 break.
Datasheet notes
- Contactor may be used above Max Switching Voltage if the application does not require significant load breaking. Please contact Rincon Power to discuss in more detail.
- Attach cables and busbars directly to the main terminal pad. Do not use washers or other materials between the contactor power terminals and the conductor.
- Continuous current tested with 85°C temperature rise at the power terminals. Terminal temperature should be limited to 180°C
- Contactor is operated by a coil that changes resistance with temperature: Maximum coil voltage will be lower than indicated at temperatures above 25°C, and higher than indicated at temperatures below 25°C.
- Nominal Coil Voltage for Pick-up Current, Coil Current and Coil Power specifications, Current/Wattage will be lower than indicated at temperatures above 25°C and higher than indicated at temperatures below 25°C.
- Pick-up Voltage and Drop Out Voltage will be lower than indicated at temperatures below 25°C and higher than indicated at temperatures above 25°C.
From the RXS1K datasheet, Rev C. Download the datasheet for graphs, dimensions and installation.
Part numbers
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The RXS1K Series in one minute
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