High Voltage Contactors
RXR03 Series
The RXR03 Series are compact ceramic-sealed high voltage DC contactors designed for precision DC switching in compact systems. With a continuous current rating of 50 A and system voltages up to 1,500 VDC, the RXR03 Series delivers robust bi-directional switching capability for applications such as pre-charge circuits, auxiliary power control, and specialized control functions where space, reliability, and electrical integrity are critical. The ceramic seal provides improved environmental resistance and long-term stability compared to epoxy alternatives, while the rectangular form factor supports integration in modern power systems where reliability and compact size are required. These contactors are ideal for battery management systems, renewable energy applications, industrial DC control circuits, and other systems requiring dependable small-form-factor DC switching.
- Continuous duty
- 50 A
- System voltage
- 1,500 VDC
- Mechanical life
- 500,000 cycles
Features and applications
RXR03 at a glance
Features
- Ceramic-sealed DC contactor construction for enhanced environmental durability
- Compact rectangular form factor ideal for tight spaces
- Bi-directional DC switching
- SPST Normally Open contact arrangement
- Designed for continuous 50 A duty at up to 1,500 VDC
- Can be PCB mounted or bottom mounted
- Fast operate and release times suitable for control circuits
- Meets RoHS 2011/65/EU and REACH compliance
Typical applications
- Pre-charge circuits for inverters and DC power systems
- Capacitor charging and inrush current control
- Electric vehicle power electronics
- Industrial DC control and signaling
- Auxiliary DC power switching
- HVAC system controls
Datasheet
Graphs, dimensions, drawings and installation notes are in the RXR03 datasheet (Rev A).
Download datasheetDatasheet specifications
RXR03 performance
| Contact Arrangement | Form X, SPST NO |
|---|---|
| Max Switching Voltage | 1,500 VDC |
| Dielectric Withstand Voltage (Max Leakage Current: 1 mA) | 3,000 VAC, 1 minute contacts to coil |
| Dielectric Withstand Voltage (Max Leakage Current: 1 mA) | 3,000 VAC, 1 minute across open contacts |
| Continuous Current (8.4 mm² conductor) | 50 A |
| Continuous Current (5.3 mm² conductor) | 40 A |
| Overload Current 10 seconds | 120 A |
| Overload Current 30 seconds | 90 A |
| Max Break – 200 A @ 1,000 V | 1 cycle |
| Max Short Circuit Current -1 second | 200 A |
| Min Insulation Resistance | 1,000 MΩ @ 500 VDC |
| Contact Voltage Drop (Max) | 50 mV @ 10 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 85°C |
| Vibration 10 Hz-2,000Hz) | 6 G |
| Ingress Protection | IP67 |
| Mechanical life | 500,000 cycles |
| Contact Arrangement | Not available |
|---|
| Coil | 12 VDC | 24 VDC |
|---|---|---|
| Nominal Voltage | 12 VDC | 24 VDC |
| Pick-up Voltage (Max) | 9 VDC | 18 VDC |
| Max Voltage | 16 VDC | 32 VDC |
| Drop-out Voltage (Min) | 0.9 VDC | 1.8 VDC |
| Coil Resistance | 51.4 Ω | 206 Ω |
| Coil Power at Nominal Voltage | 2.8 W | 2.8 W |
| Voltage | Current | Cycles |
|---|---|---|
| Polarity Sensitive Version | ||
| 450 V | 20 A | 75,000 |
| 450 V | 30 A | 150,000 (MAKE ONLY) |
| 750 V | 20 A | 50,000 |
| 750 V | 30 A | 75,000 (MAKE ONLY) |
| 1,000 V | 20 A | 30,000 |
| 1,000 V | 30 A | 50,000 (MAKE ONLY) |
| 1,500 V | 40 A | 15,000 (MAKE ONLY) |
Table 2 of the RXR03 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.
- Continuous current tested with 85°C temperature rise at the power terminals. Terminal temperature should be limited to 150°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.
- 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 RXR03 datasheet, Rev A. Download the datasheet for graphs, dimensions and installation.
Part numbers
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Options and part numbers from the RXR03 datasheet. Other combinations may be available as custom builds.
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