High Voltage Contactors
RXR1K Series
The RXR1K MegaTactor Series are hermetically sealed high voltage DC contactors designed for ultra-high-current power switching in the most demanding DC power systems. Rated for continuous currents up to 1,200 A and system voltages up to 1,500 VDC, the RXR1K Series delivers robust, bi-directional DC switching performance for mission-critical applications. Integrated coil economization and mechanically linked auxiliary contacts support efficient operation and reliable position feedback, while the hermetic ceramic seal with gas fill protects internal components from moisture, dust, and contaminants. Designed in a proven rectangular form factor commonly used for system-level DC power control, the RXR1K Series is well suited for large-scale energy, stationary infrastructure, and heavy-duty DC power systems requiring maximum current capability, long-term reliability, and drop-in compatibility with established rectangular contactor platforms.
Watch the 1-minute video- Continuous duty
- 1,200 A
- System voltage
- 1,500 VDC
- Mechanical life
- 200,000 cycles
- Dielectric withstand
- 5,400 VRMS
Features and applications
RXR1K at a glance
Features
- Hermetic ceramic seal with gas fill for superior carry and switching performance
- Bi-directional DC power switching
- Mechanically linked 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
- Ultra-fast DC charging infrastructure
- High-density data center DC backup power systems
- Grid-connected DC power distribution
- Rail, marine, and heavy transportation platforms
- Utility-scale renewable energy systems
- Mission-critical DC power systems
- Load bank / high power test systems
Datasheet
Graphs, dimensions, drawings and installation notes are in the RXR1K datasheet (Rev E).
Download datasheetDatasheet specifications
RXR1K 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 | 200,000 cycles |
| Continuous Current (600 mm² conductor) | 1,200 A (or 1,000 A using 480 mm² conductor) |
| Overload Current 90 seconds | 2,000 A |
| Overload Current 18 seconds | 4,000 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 | 20 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 (BREAK ONLY) |
| 1,000 V | 800 A | 1,000 (BREAK ONLY) |
| 1,000 V | 2,500 A | 2 (BREAK ONLY) |
| 1,200 V | 500 A | 5,000 (BREAK ONLY) |
| 1,500 V | 300 A | 6,000 |
| 1,500 V | 1,000 A | 200 (BREAK only) |
| 2,500 V | 1,000 A | 30 (BREAK ONLY) |
Table 2 of the RXR1K datasheet, Rev E, 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 RXR1K datasheet, Rev E. Download the datasheet for graphs, dimensions and installation.
Part numbers
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The RXR1K Series in one minute
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