High Voltage Contactors
RXR26 Series
The RXR26 Series are ceramic-sealed high voltage DC contactors designed for higher-current DC power switching in system-level applications requiring a rectangular contactor form factor. Rated for continuous currents up to 250 A and system voltages up to 1,500 VDC, the RXR26 Series provides robust bi-directional DC switching performance with improved voltage capability over earlier RXR platforms. Capable in 1,500 V systems, the RXR26 series is suitable for higher voltage energy storage systems, charging infrastructure subsystems, and industrial DC power control applications where ceramic sealing and rectangular packaging are preferred.
- Continuous duty
- 250 A
- System voltage
- 1,500 VDC
- Mechanical life
- 500,000 cycles
Features and applications
RXR26 at a glance
Features
- SPST Normally Open High Voltage DC Contactor
- Ceramic-sealed DC contactor construction
- Rectangular form factor for system-level integration
- Bi-directional DC power switching
- SPST Normally Open contact arrangement
- Continuous current rating up to 250 A
- System voltage rating up to 1,500 VDC
- Optional auxiliary contacts
- Meets RoHS 2011/65/EU and REACH compliance
Typical applications
- Battery energy storage systems (BESS)
- DC charging infrastructure subsystems
- Industrial DC power distribution
- Renewable energy power conversion systems
- Auxiliary DC power switching
- System-level DC control applications
Datasheet
Graphs, dimensions, drawings and installation notes are in the RXR26 datasheet (Rev A).
Download datasheetDatasheet specifications
RXR26 performance
| Contact Arrangement | Form X, SPST NO |
|---|---|
| Max Switching Voltage | 1,500 VDC |
| Dielectric Withstand Voltage | 3,000 VAC, 1 minute contacts to coil |
| Dielectric Withstand Voltage | 5,000 VDC, 1 minute across open contacts |
| Continuous Current (60mm2 conductor) | 250 A |
| Overload Current 30 seconds | 1,000 A |
| Overload Current 10 minutes | 400 A |
| Fault Interrupt (1,000 V, 1 cycle) | 2,000 A |
| Max Short Circuit Current - 5 ms | 10,000 A |
| Min Insulation Resistance | 1,000 MΩ @ 500 VDC |
| Contact Resistance (Typical) | 0.10 mΩ at 250 A |
| Operate Time (Max, incl bounce) | 30 ms |
| Release Time (Max) | 10 ms |
| Shock - Functional, 1/2 Sine, 11 ms | 20 G |
| Shock – Destructive, 1/2 Sine, 11 ms | 50 G |
| Operating Temperature | -40°C to 100°C (limit terminal temp to 180°C) |
| Max Terminal Temperature | 180°C |
| Ingress Protection | Exceeds IP69, (Hermetically sealed) |
| Mechanical life | 500,000 cycles |
| Contact Arrangement | Normally Open (SPST) |
|---|---|
| Aux contact current rating | 2 A |
| Coil | 12 VDC | 24 VDC |
|---|---|---|
| Nominal Voltage | 12 VDC | 24 VDC |
| Pick-up Voltage (Max) | 9 VDC | 18 VDC |
| Drop-out Voltage (Min) | 1.2 VDC | 2.4 VDC |
| Max Voltage (continuous) | 16 VDC | 32 VDC |
| Coil Power at Nominal Voltage | 7 Watt | 7 Watt |
| Voltage | Current | Cycles |
|---|---|---|
| Bi-Directional Version | ||
| 28 V | 250 A | 200,000 |
| 500 V | 350 A | 500 |
| 800 V | 250 A | 1,500 |
| 800 V | 50 A | 100,000 |
| 1,000 V | 250 A | 1,000 |
| 1,000 V | 2,000 A | 1 cycle (BREAK ONLY) |
| 460 V | 500 A | 3,000 (MAKE ONLY) |
Table 2 of the RXR26 datasheet, Rev A, 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 does not have internal coil suppression. If suppression is required, we recommend bi-directional TVS with a clamping voltage is at least 2 times the rated nominal coil voltage. Do not use freewheeling diode.
- 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.
- 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.
From the RXR26 datasheet, Rev A. Download the datasheet for graphs, dimensions and installation.
Part numbers
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Options and part numbers from the RXR26 datasheet. Other combinations may be available as custom builds.
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