High Voltage Contactors
RER02P5 Series
The RER02P5 Series are compact high voltage DC relays designed for pre-charge and auxiliary DC control applications requiring a specific mechanical form factor. Based on the proven RER02 electrical platform, the RER02P5 Series provides a cost-effective solution for systems where full performance specifications of higher-end pre-charge relays are not required. With sealed construction and a compact footprint, the RER02P5 Series is well suited for controlled capacitor charging, DC bus discharge, and auxiliary DC switching in electric vehicles, energy storage systems, and industrial equipment. These relays offer a practical balance of form-factor compatibility, reliability, and value.
- Continuous duty
- 40 A
- System voltage
- 1,000 VDC
- Mechanical life
- 1,000,000 cycles
Features and applications
RER02P5 at a glance
Features
- Compact sealed DC relay construction
- Form-factor compatible mechanical layout
- Optimized for pre-charge and auxiliary DC switching
- Cost-effective alternative for compatible designs
- Low power coil options available
- Fast operate and release times
- Suitable for capacitive charging and discharge circuits
- RoHS and REACH compliant
- Designed and Assembled in the USA
Typical applications
- Pre-charge circuits in inverter-based systems
- Capacitor charging and controlled discharge networks
- Electric vehicle power electronics
- Industrial DC control and auxiliary switching
- Form-factor compatible pre-charge applications
- Auxiliary DC power switching
Datasheet
Graphs, dimensions, drawings and installation notes are in the RER02P5 datasheet (Rev B).
Download datasheetDatasheet specifications
RER02P5 performance
| Contact Arrangement | Form X, SPST NO |
|---|---|
| Max Switching Voltage | 1,000 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 (4 mm² conductor) | 20 A |
| Continuous Current (13 mm² conductor) | 40 A |
| Overload Current 30 seconds | 80 A |
| Overload Current 1 hour | 30 A |
| Max Break – 30 A @ 450 V | 5 cycles |
| Max Short Circuit Current -0.5 second | 200 A |
| Min Insulation Resistance | 1,000 MΩ @ 500 VDC |
| Contact Resistance (Max) | 5.0 mΩ |
| Contact Resistance (Typical) | 3.5 mΩ |
| 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 | IP67, |
| Mechanical life | 1,000,000 cycles |
| Contact Arrangement | Not available |
|---|
| Coil | 12 VDC | 24 VDC |
|---|---|---|
| Nominal Voltage | 12 VDC | 24 VDC |
| Pick-up Voltage (Max) | 9 VDC | 18 VDC |
| Drop-out Voltage (Min) | 0.8 VDC | 1.6 VDC |
| Coil Resistance | 48 Ω | 192 Ω |
| Coil Power at Nominal Voltage | 3 W | 3 W |
| Voltage | Current | Cycles |
|---|---|---|
| Polarity Sensitive Version | ||
| 450 V | 20 A | 5,000 |
| 450 V | 10 A | 10,000 |
| 450 V | 20 A | 75,000 (MAKE ONLY) |
| 450 V | 30 A | 50,000 (MAKE ONLY) |
| 800 V | 15 A | 50,000 (MAKE ONLY) |
| 1,000 V | 10 A | 30,000 (MAKE ONLY) |
| 1,000 V | 10 A | 250 (BREAK ONLY) |
Table 2 of the RER02P5 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.
- 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 150°C.
- Coil terminals are non-polar.
- 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.
- 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.
- 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 RER02P5 datasheet, Rev B. Download the datasheet for graphs, dimensions and installation.
Part numbers
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Options and part numbers from the RER02P5 datasheet. Other combinations may be available as custom builds.
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