High Voltage Contactors
REC50 Series
The REC50 Series are epoxy-sealed high voltage DC contactors designed for mainstream DC power switching applications where cost, availability, and proven form factors are important. Rated for continuous currents up to 500 A and system voltages up to 1,500 VDC, the REC50 Series provides reliable bi-directional switching with integrated coil economizer and auxiliary contact options for main contact position feedback. The epoxy seal with gas fill provides hermetic protection suitable for standard operating environments. Well suited for OEM and production use, the REC50 Series offers dependable performance across a range of DC power control systems, including battery energy storage, charging infrastructure subsystems, industrial DC power distribution, and related applications where balanced performance and value are prioritized.
- Continuous duty
- 500 A
- System voltage
- 1,500 VDC
- Mechanical life
- 200,000 cycles
- Dielectric withstand
- 4,500 VAC
Features and applications
REC50 at a glance
Features
- Epoxy-sealed hermetic construction for reliable DC switching
- Bi-directional DC power switching
- Mechanically linked auxiliary contacts for position feedback
- Integrated coil economizer to reduce holding power
- SPST Normally Open contact arrangement
- Meets RoHS 2011/65/EU and REACH compliance
- UL recognized component (File E536110)
Typical applications
- Battery energy storage systems (BESS)
- DC charging infrastructure subsystems
- Industrial equipment and machinery
- Auxiliary DC power switching
- Electric vehicle power subsystems
- Material handling and utilities
- Renewable energy DC power conversion
- General OEM DC control circuits
Datasheet
Graphs, dimensions, drawings and installation notes are in the REC50 datasheet (Rev A).
Download datasheetDatasheet specifications
REC50 performance
| Contact Arrangement | Form X, SPST NO |
|---|---|
| Max Switching Voltage | 1,500 VDC |
| Dielectric Withstand Voltage Across Open Contacts | 4,500 VAC, 1 minute |
| [blank label, row below Dielectric Withstand Voltage Across Open Contacts] | 4,500 VDC, 1 minute |
| Continuous Current (250 mm² conductor) | 500 A |
| Overload Current 1 minute | 1,000 A |
| Overload Current 30 seconds | 2,000 A |
| Make and Break | See table 2 |
| Min Insulation Resistance | 1,000 MΩ @ 1,000 V |
| Contact Voltage Drop (Max) | 50 mV @ 100 A |
| Operate Time (Max, incl bounce) | 40 ms |
| Release Time (Max) | 12 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 | 200,000 |
| Contact Arrangement | SPST |
|---|---|
| Continuous Current | 3 A |
| Minimum Current | 5 mA @ 8 V |
| Nominal Voltage | 12-36 VDC |
|---|---|
| Pick-up Voltage (Max) | 9 VDC |
| Drop-out Voltage (Min) | 5 VDC |
| Inrush Current (Max) | 3.8 A |
| Holding Current | 0.34 A @ 12 VDC; 0.16 A @ 24 VDC |
| Voltage | Current | Cycles |
|---|---|---|
| Bi-Directional | ||
| 750 V | 500 A | 1,000 |
| 1,500 V | 200 A | 1,000 |
| 1,000 V | 1,000 A | BREAK only – 1 cycle |
Table 2 of the REC50 datasheet, Rev A, as printed. Resistive load; 1 cycle = 1 make + 1 break.
Datasheet notes
- Polarity Sensitive versions are marked +A1 and -A2 for the power terminals. For applications that require the contactor under load, please ensure current is flowing from the +A1 to the -A2 terminal when breaking/opening under load For Bi-Directional versions the direction of current does not matter when breaking under load.
- 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.
- Avoid excessive coil voltages. Exceeding the ratings on the datasheet may result in high coil temperature and coil failure.
From the REC50 datasheet, Rev A. Download the datasheet for graphs, dimensions and installation.
Part numbers
Build your REC50 part number
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Options and part numbers from the REC50 datasheet. Other combinations may be available as custom builds.
All standard REC50 part numbers
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