High voltage relay
R2 Series
R2 series high voltage relays are designed to carry high current in high voltage applications up to 15 kV and are optimized for low loss in RF circuits. Molybdenum/copper contacts provide low stable contact resistance allowing for a 50 amp continuous current carry rating – the highest of any relay variant in this size and form factor. The Single Pole Double Throw (SPDT) configuration provides design flexibility by incorporating both Normally Open (NO) and Normally Closed (NC) contact sets within a single relay. Continuity transfers between the contact sets when the coil is powered on or off.
Key specifications
R2 Series at a glance
- Voltage
- 15 kV
- Current
- 50 A
- Contact form
- SPDT
- Dielectric
- Vacuum
| Voltage rating | 15 kV |
|---|---|
| Current rating (continuous, DC or 60 Hz) | 50 A |
| Contact arrangement | SPDT |
| Contact form | C = Single Pole Double Throw |
| Operation | Carry Only |
| Coil voltage | 12 or 26.5 VDC |
| Construction | Bottle |
| Dielectric | Vacuum |
| Contact material | Molybdenum/Copper |
| HV termination | Solder Pot or Screw |
| Coil termination | Turret Terminals |
| Mounting | Through Panel or Flange |
Datasheet
Full ratings, dimensions and drawings are in the R2 Series datasheet (PDF).
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Datasheet specifications
R2 Series performance
| Contact Arrangement | Form C, SPDT (Single Pole Double Throw) |
|---|---|
| Max Operating Voltage (Peak, between Contacts and Contacts to Base) (Max Leakage Current: 15µA) | 15 kV dc or 60 Hz; 12 kV at 2.5 MHz; 9 kV at 16 MHz; 7 kV at 32 MHz |
| Test Voltage (Peak, between Contacts and Contacts to Base) (Max Leakage Current: 15µA) | 17 kV dc or 60 Hz |
| Continuous Current DC or 60 Hz | 50 A |
| Continuous Current 2.5 MHz | 30 A |
| Continuous Current 16 MHz | 17 A |
| Continuous Current 32 MHz | 10 A |
| Capacitance – Across Open Contacts | 0.5 pF |
| Capacitance – Contacts to Ground | 1.0 pF |
| Coil Hi-Pot (V RMS, 60 Hz) | 500 V |
| Contact Resistance (Max) | 0.012 Ω @ 1 A |
| Operate Time (Max, incl bounce) | 15 ms |
| Release Time (Max) | 9 ms |
| Shock - Operating, 1/2 Sine, 11 ms | 50 G |
| Vibration (55-500 Hz Peak) | 10 G |
| Operating Temperature | -55°C to 125°C |
| Mechanical life | 1,000,000 cycles |
| Weight | 84 g |
| Coil (25 °C) | 12 VDC | 26.5 VDC |
|---|---|---|
| Nominal Voltage | 12 VDC | 26.5 VDC |
| Pick-up Voltage, Max | 8 VDC | 16 VDC |
| Drop-out Voltage | 0.5-5 VDC | 1.0-10 VDC |
| Coil Resistance (±10%) | 60 Ω | 270 Ω |
From the R2 datasheet. The datasheet notes on coil temperature effects apply. Download the datasheet.
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Applications
Where the R2 Series is used
High Power Test Systems and Load Banks
Switching and protection for load banks, dynos, and high-power test setups.
High Voltage Test Equipment
HV switching for test stands, labs, hipot systems, and simulation equipment.
Medical Devices and Therapy Systems
High voltage switching for medical diagnostic, therapy, and specialty equipment.
RF Switching and RF Test Equipment
Low-loss switching for RF generators, RF test equipment, and tuning networks.
Scientific and Analytical Instrumentation
HV switching for scientific instruments, measurement systems, and laboratory setups.
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Questions about the R2 Series?
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