2.5 kV, 5 kV Peak, SPDT, 25 Amps, Jennings RJ1H NEW – Vacuum Relay


BRAND NEW ceramic vacuum relay with SPDT contacts (Hot Switching).

Jennings RJ1H NEW Ceramic Vacuum Relay, SPDT

  • Similar to RJ1A, except designed specifically for DC hot load switching.
Operating Voltage 2.5 kV
Peak Voltage 5 kV
Current Carry Amps (RMS) 3 Amps @ 60 Hz
Contact Close Speed 8 MS (Milliseconds)
Contact Release Speed 8 MS (Milliseconds)
Rated Life Operations 1,000,000
Important Dimensions
Max Length 2.75 in / 69.85 mm
Max Diameter 1.38 in / 35.05 mm
Mounting Hole Diameter 0.55 in / 14.05 mm
Weight 1.00 oz / 28.00 g
Mounting Threaded base with mounting nut included.
Condition BRAND NEW

Spec Sheet

(Other manufacturers make other variations of this relay and are sometimes available, inquire)
VHC-1 Kilovac HC-1 Gigavac GH-1

NOTE: Our customers who buy these relays frequently are also seeking high speed reed relays or switching relays. We have the ideal answer in our RFK-6396 relays. See them here.
RFK-6396 high speed SPDT RF switching relay 250x250 - Max-Gain Systems, Inc.

About Max-Gain Systems, Inc.

Max-Gain Systems, Inc. carries a full line of in-series, between series, right angle, T-shaped, quick connect, handie-talkie (BLACK), pigtails (coaxial jumpers), etc… RF adapters. Our RF adapter lines are constantly expanding. We keep our RF connector and adapter lines in stock. We ship both retail and wholesale quantities. To become a dealer / wholesale user, contact us with your potential usage.

Max-Gain Systems, Inc. is the number one supplier of fiberglass round hollow tube, square tube and round solid rod to the antenna manufacturing industry. We produce millions of feet a year for hundreds of different industries including but not limited to: marine / boating, aeronautical, agriculture, construction, emergency services, etc…. We have the unique ability to sell one piece or even a semi-truck full. Feel free to prototype using our fiberglass tube and rod then contact us for a quote on a production run. At production run quantities we can cut to your desired lengths at no additional charge, and we can also perform several different fabrications (example: drilling holes in precise locations along a tube) to ensure your delivered material is ready for assembly. We have several accessory items designed for our fiberglass including but not limited to: couplers, telescoping clamps, ferrules, etc…

Additional information

Shipping Weight 2.00 oz
Shipping Dimensions 4.00 × 4.00 × 6.00 in


Coil Voltage

12 VDC, 26.5 VDC

Contact Set Body Type


Contact Set Configuration


2.5 KV

Peak Voltage

5 kV


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