High Voltage Contactors
RXR40 Series
The RXR40 Series are ceramic-sealed high voltage DC contactors designed for ultra high-current DC power switching in demanding system-level applications. Rated for continuous currents up to 400 A and system voltages up to 1,500 VDC, the RXR40 Series delivers robust bi-directional switching performance in a proven rectangular form factor. The ceramic seal provides enhanced environmental resistance and long-term stability compared to epoxy-sealed alternatives, supporting reliable operation in industrial and infrastructure environments. As the highest-current device in the RXR family, the RXR40 Series is well suited for large-scale energy storage systems, high-power charging infrastructure subsystems, industrial DC power distribution, and other applications requiring dependable, high-current DC switching.
- Continuous duty
- 400 A
- System voltage
- 1,500 VDC
- Mechanical life
- 500,000 cycles
- Dielectric withstand
- 4,000 VAC
Features and applications
RXR40 at a glance
Features
- Ceramic-sealed DC contactor construction for enhanced durability
- Rectangular form factor for system-level integration
- Bi-directional DC power switching
- SPST Normally Open contact arrangement
- Designed for continuous 400 A duty at up to 1,500 VDC
- Suitable for high-current DC power control
- Meets RoHS 2011/65/EU and REACH compliance
Typical applications
- Battery energy storage systems (BESS)
- DC charging infrastructure subsystems
- Auxiliary DC power switching in heavy equipment
- Renewable energy power conversion systems
- Industrial DC power distribution
- System-level DC power control applications
Datasheet
Graphs, dimensions, drawings and installation notes are in the RXR40 datasheet (Rev B).
Download datasheetDatasheet specifications
RXR40 performance
| Contact Arrangement | Form X, SPST NO |
|---|---|
| Max Switching Voltage | 1,500 VDC |
| Dielectric Withstand Voltage (Across Open Contacts) | 4,000 VAC, 1 minute |
| Dielectric Withstand Voltage (Across Closed Contacts and Coil) | 3,000 VAC, 1 minute |
| Continuous Current (127 mm² conductor) | 400 A |
| Overload Current 1 minute | 1,000 A |
| Overload Current 30 seconds | 1,200 A |
| Short Circuit Withstand | 8,000 A (10 ms) |
| Make and Break | See Table 2 |
| Min Insulation Resistance | 1,000 MΩ @ 1,000 V |
| Contact Resistance (typical) | 0.15mohm at 400 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 |
| Ingress Protection | Exceeds IP69, (Hermetically sealed) |
| Mechanical life | 500,000 |
| Contact Arrangement | SPST |
|---|---|
| Continuous Current | 2 A |
| Minimum Current | 5 mA @ 8 V |
| Coil | 12 V | 24 V | 48 V |
|---|---|---|---|
| Nominal Voltage | 12 V | 24 V | 48 V |
| Max Voltage | 16 V | 32 V | 64 V |
| Pick-up Voltage (Max) | ≤ 9 VDC | ≤ 18 VDC | ≤ 36 VDC |
| Drop-out Voltage (Min) | 1.2 VDC | 2.4 VDC | 4.8 VDC |
| Inrush Current (Max) – up to 300 ms | 4.2 A | 2.1 A | 1 A |
| Holding Current | 0.42 A | 0.21 A | 0.10 A |
| Coil Back EMF (Internal TVS) | 29 V | 58 V | 113 V |
| Voltage | Current | Cycles |
|---|---|---|
| Bi-Directional Version | ||
| 400 V | 400 A | 2000 |
| 800 V | 400 A | 800 |
| 1,000 V | 400 A | 200 (BREAK ONLY) |
| 1,500 V | 250 A | 50 (BREAK ONLY) |
| 450 V | 800 A | 50 (BREAK ONLY) |
| 800 V | 2,500 A | 1 (BREAK ONLY) |
Table 2 of the RXR40 datasheet, Rev B, 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.
- Attached cables and busbars directly to the main terminal pad using the recommended install torque. Do not use washers or other materials between the contactor and the conductor. This will ensure the lowest possible contact resistance.
- The coil is polarized, please follow schematic when wiring the coil.
- Avoid excessive coil voltages. Exceeding the ratings on the datasheet may result in high coil temperature and coil failure.
- The coil has an integrated economizer that limits coil holding power. Please allow for inrush of up to 300 ms to fully close the contacts. Coil economizer will automatically reduce coil current once the contacts are closed.
From the RXR40 datasheet, Rev B. Download the datasheet for graphs, dimensions and installation.
Part numbers
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Options and part numbers from the RXR40 datasheet. Other combinations may be available as custom builds.
All standard RXR40 part numbers
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