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Vacuum Relays, SPDT types
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Gigavac G52WF SPDT vacuum relay
These are the heaviest-duty vacuum relays we have EVER seen in this (SPDT) contact configuration! Contacts are rated 150 amps, and 25kv (30 kv peak)! This IS an RF rated relay! Brand new, unused stock.
Ceramic body for extra ruggedness and current handling capability. Flange mount type (3 mounting slots). These are physically large, as shown in the accompanying photo with a US one dollar bill for size reference. For manufacturer's data sheet, click here: http://www.gigavac.com/products/relays/datasheets/g52/index.htm
Diameter, not including terminals, is 2.375 inches. Diameter of flange is 3.5 inches. Height, (overall) is 5.07 inches. Weight is 1,000 grams, or 35 ounces (2.19 pounds). Terminals are drilled and tapped, and are furnished with mating screws. This is THE choice for the most extreme high-power applications where single pole, double throw contacts are required. Furnished with 26 vdc coil, (60 ohms). Note: an optional 12 vdc coil is also available for this relay, (resistance is 15 ohms, + or - 10%) at a price of only $25.00, and is normally a stocked item. Mfr's list price of relay: $986. By means of a special purchase, we have an unbelievable price on this relay. far too low to publish!
EMAIL for your price. Refer to pricing on Gigavac G52WF vacuum relay. |
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Gigavac G9WF SPDT vacuum relay
These are another very heavy duty vacuum relay, suitable for most high-power applications requiring this (SPDT) contact configuration. Contacts are rated 75 amps, and 15kv, (20 kv peak)! This IS an RF rated relay! Brand new, unused stock. (Very similar ratings to the extremely popular Jennings type RF10B.)
Ceramic body for extra ruggedness and current handling capability. Flange mount type (3 mounting slots). These are fairly physically large, as shown in the accompanying photo with a US one dollar bill for size reference. For manufacturer's data sheet, click here:
http://www.gigavac.com/products/relays/datasheets/g9/index.htm
Body diameter, not including terminals, is 1.32 inches. Flange diameter is 2.375 inches. Height, (overall) is 3.25 inches. Weight is 300 grams, or 11 ounces . Terminals are drilled and tapped, and are furnished with mating screws. Furnished with 26 vdc coil, (190 ohms). Note: an optional 12 vdc coil is also available for this relay, (resistance is 48 ohms, + or - 10%) at a price of only $25.00, and is normally a stocked item. Mfr's list price of relay: $688. By means of a special purchase, we have an unbelievable price on this relay. far too low to publish!
EMAIL for your price. Refer to pricing on Gigavac G9WF vacuum relay. |
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"VC-2" SPDT Relay
We obtained these unbranded relays from an OEM (original equipment manufacturer)in a large lot. They are of similar ratings to types such as Kilovac KC-2, Jennings RJ-2, and Gigavac G2 series. They appear to have been manufactured by one of the major manufacturers for the OEM as an unbranded "house" component, and we are able to offer them brand new, unused, as a very low-cost alternative for the builder looking for a new part with high electrical ratings at a budget price. Contacts rated at 15 kv peak, and 50 amps maximum current. (Solder terminal type.) Supplied with 26.5 vdc coil. Threaded base with mounting nut and washer supplied. Diameter, not including terminals is approximately one inch. Length is 2.125 inch including coil terminals. New / unused.
Price each: $95.00 (Order Now!) |
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Jennings RJ1A-26S (standard version) SPDT ceramic vacuum relay and RJ1A-26N969 (silicone encapsulated version) SPDT ceramic vacuum relay.
We usually have both types of the extremely popular RJ1A vacuum relays available, the -26S standard version, and the -26N969 silicone encapsulated version. These relays are perfect for high-speed (8 milliseconds or less!) RF switching applications such as "QSK" in RF amplifiers. The major difference in the two types is that the 26N969 version is rated for TWICE the maximum voltage as the -26S. (10 kv as opposed to 5 kv at 60 Hz.) It also has the advantage of even quieter operation due to the layer of highly purified white silicone which is cast over the ceramic of the standard 26S version. It is also slightly more rugged due to the protective layer, and the contact leads are easier to use. While the 26N969 was designed primarily for medical applications and specs are not listed for it to 32 Mhz on the Jennings site, these relays have been used successfully with rave reviews by many of our customers to 30 Mhz. Expected life, both types, is 2 million operations.
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, here: http://www.mgs4u.com/RF-Microwave/RFrelays_misc.htm |
Complete specifications for the RJ1A-26N969 from the Jennings website:
http://www.jenningstech.com/ps/jen/pub_product_detail.cgi?&pro_pt_id=2&pro_id=481
Complete specifications for the "standard" version of the RJ1A ... the RJ1A-26S... from the Jennings website:
http://www.jenningstech.com/ps/jen/pub_product_detail.cgi?&pro_pt_id=2&pro_id=472
Mounting nuts are not included, but are an option (below), since there are better mounting methods available. Both types have identical threaded bases.
Click here for discussion of mounting methods for these two types of relays.
Click here for photos illustrating grommet mounting options.
Photos show close-up views of the 26N969 relays, and a comparative shot of the 26N969 with the 26S version, which may be either the familiar blue paint trim or the imprinted label version (identical).
We also show the mounting nut, as well as the aluminum hold-down bracket and a piece of the silicone sheet material which may be used for mounting these relays. The aluminum hold-down bracket will not work with the 26N969 because of increased diameter of the top of the relay due to the silicone layer. Standard coil voltage on all RJ1 series relays is 26 VDC. Optional 12 vdc coils are now available!
Note: These relays are sometimes seen for sale on used medical equipment boards, and can have a high test failure rate. Our stock is tested and hipotted, and fully satisfaction guaranteed! (Why risk your equipment on an "unknown"?)
WHEN ORDERING THESE RELAYS, specify type, "new" or "used", and desired coil voltage. Also specify whether or not you require optional mounting nut.
Price for RJ1A-26S: $69.00 (new, unused, old stock) Sorry, but this item is temporarily out of stock.
Price for RJ1A-26S : $39.50 (removed from equipment, checked) Sorry, but this item is temporarily out of stock.
Price for RJ1A-26N969: $47.50 (removed from equipment, checked) Sorry, but this item is temporarily out of stock.
Price of 12 VDC coils for RJ1A (new): $22.50 each (When ordering coils only, specify "COIL ONLY" and state coil voltage required, and relay type you are buying it to fit.)
( Order Now! )
Price of OPTIONAL mounting nuts, if needed: $1 each. Aluminum hold-down brackets or silicone sheet will be furnished free with purchase on request.
SPECIAL NOTICE .... We are now also a reseller of a very wide range of Gigavac relays, and we have the Gigavac equivalent of the RJ1A-26S (the Gigavac GH-1) available brand new, factory fresh, in your choice of either 12 VDC or 26 VDC coil, at only $79.00 each! We think that this is the lowest price available anywhere on these relays in new condition. If ordering, order as Gigavac GH-1, and specify coil voltage.
For manufacturer's specs on this relay, click this link: http://www.gigavac.com/products/relays/datasheets/gh1_3_5/index.htm
For vacuum relay soldering / installation tips, click here: http://www.gigavac.com/apps/relays/soldering/index.htm
 
(Order Now!)
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GH-3 ceramic vacuum relay, SPDT contacts
This relay is designed for make & break load switching. The GH-3 has heavy tungsten contacts to be able to withstand hot load switching. Not RF rated.
Peak Test Voltage 5 KV
Peak Operating Voltage 3.5 KV
Current Carry Amps (RMS) 18 amps @ 60 Hz
Contact Close Speed 6 MS (Milliseconds)
Contact Release Speed 6 MS (Milliseconds)
Rated Life Operations 2,000,000
Coil Specs ( Two types available)
Coil Voltage 26.5 VDC 12 VDC
Coil Resistance 335 Ohms 80 Ohms
Important Dimensions
Max length 1.42 in / 35 mm
Max Diameter .92 in / 24 mm
Mounting Hole Diameter .55 in / 14.05 mm
Weight 1 oz / 28 grams
Mounting Threaded base with mounting nut included .
Condition Brand New, unused. Guaranteed good.
Price: $79.00 each (be sure to specify coil voltage) (Order Now!) |
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VHC-1 ceramic vacuum relay, SPDT contacts
This relay is made by the same manufacturer as the VC-2 relay, shown elsewhere on this page.
This is a direct, very cost-effective drop-in replacement for the popular Jennings RJ1A-26S, Kilovac HC-1, and Gigavac GH-1.
Peak Test Voltage 5 KV
Peak Operating Voltage 3.5 KV
Current Carry Amps (RMS) 25 amps @ 60 Hz, 7 amps @ 32 Mhz.
Contact Close Speed 6 MS (Milliseconds)
Contact Release Speed 6 MS (Milliseconds)
Rated Life Operations 2,000,000
Coil Specs (Two types available)
Coil Voltage 26.5 VDC 12 VDC
Coil Resistance 335 Ohms 80 Ohms
Important Dimensions
Max length 1.36 in / 35 mm
Max Diameter .92 in / 24 mm
Mounting Hole Diameter .55 in / 14.05 mm
Weight 1 oz (28 grams)
Mounting Threaded base with mounting nut included.
Condition Brand New, unused. Guaranteed good.
Price: $59.00 each (be sure to specify coil voltage) (Order Now!) |
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VHC-3 ceramic vacuum relay, SPDT contacts, for make-and-break load switching (not RF rated)
This relay is made by the same manufacturer as the VC-2 relay, shown elsewhere on this page.
This is a direct, very cost-effective drop-in replacement for the popular Gigavac GH-3 and Jennings RJ1H for make-and-break load switching.
Peak Test Voltage 5 KV
Peak Operating Voltage 3.5 KV
Current Carry Amps (RMS) 18 amps @ 60 Hz
Contact Close Speed 6 MS (Milliseconds)
Contact Release Speed 6 MS (Milliseconds)
Rated Life Operations 2,000,000
Coil Specs ( Two types available )
C oil Voltage 26.5 VDC 12 VDC
C oil Resistance 335 Ohms 80 Ohms
Important Dimensions
Max length 1.36 in / 35 mm
Max Diameter .92 in / 24 mm
Mounting Hole Diameter .55 in / 14.05 mm
Weight 1 oz (28 grams)
Mounting Threaded base with mounting nut included.
Condition Brand New, unused. Guaranteed good.
Price: $59.00 each (be sure to specify coil voltage) (Order Now!)
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Jennings RF1J ceramic vacuum relay, SPDT (Latching contacts).
Test Voltage 4 KV
Peak Voltage 3.6 KV
Current Carry Amps (RMS) 10 amps
Contact Close Speed 10 MS (Milliseconds)
Contact Release Speed 10 MS (Milliseconds)
Rated Life Operations 1,000,000
Coil Resistance 18.3 Ohms
Coil Voltage 26.5 VDC
Coil Special Note: Intermittent duty, PULSE ONLY! (Do not leave coils energized.)
Important Dimensions
Max length 1.60 in
Max Diameter .53 in
Mounting Flange .66 in
Weight 1 oz (28 Grams)
Mounting With small diameter flange for mounting through hole in chassis. An appropriately sized rubber grommet or adhesive could be utilized.
Condition New, unused, old stock, guaranteed good. Note: Some supplied with Jennings labels, some without.)
Price: $35.00 each (Order Now!) |
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Jennings RF1E ceramic vacuum relay, SPDT contacts.
Test Voltage 4 KV
Peak Voltage 4 KV
Current Carry Amps (RMS) 8 amps
Contact Close Speed 10 MS (Milliseconds)
Contact Release Speed 10 MS (Milliseconds)
Rated Life Operations 2,000,000
Coil Resistance 920 Ohms
Coil Voltage 26.5 VDC
Important Dimensions
Max length 1.60 in
Max Diameter .53 in
Mounting Flange .66 in
Weight 1 oz (28 Grams)
Mounting With small diameter flange for mounting through hole in chassis. An appropriately sized rubber grommet or adhesive could be utilized.
Manufacturer's datasheet link provided: http://www.jenningstech.com/pdf/rel/RF_1D_1E_1G.pdf
Condition Used, checked, and guaranteed good. Note: Some supplied with Jennings labels, some without.)
Price: $29.00 each ( Order Now! ) |
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Jennings RF3C ceramic vacuum relay, SPDT (Latching contacts).
Test Voltage 10 KV
Peak Voltage 8 KV
Current Carry Amps (RMS) 30 amps
Contact Close Speed 10 MS (Milliseconds)
Contact Release Speed 10 MS (Milliseconds)
Rated Life Operations 1,000,000
Coil Resistance 12 Ohms
Coil Voltage 26.5 VDC
Coil Special Note: Intermittent duty, PULSE ONLY! (Do not leave coils energized.)
1.5 amp supply (or better) required to operate.
Important Dimensions
Max length 2.35 in
Max Diameter .757 in
Mounting Flange 1.252 in
Weight 2 oz (57 Grams)
Mounting 3 hole flange
Condition New, unused, old stock, guaranteed good. Note: Some supplied with Jennings labels, some without.)
Manufacturer's datasheet link: http://www.jenningstech.com/pdf/rel/rf3a_d_c.pdf
Price: $59.00 each (Order Now!) |
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Jennings RF60-26N914 ceramic vacuum relay, SPDT (Latching contacts).
Test Voltage 4 KV
Peak Voltage 3.6 KV
Current Carry Amps (RMS) 12 amps
Contact Close Speed 10 MS (Milliseconds)
Contact Release Speed 10 MS (Milliseconds)
Rated Life Operations 1,000,000
Coil Resistance 47 Ohms
Coil Voltage 26.5 VDC
Coil Special Note: Intermittent duty, PULSE ONLY! (Do not leave coils energized.)
***Standard version of RF60 has 30 Ohm coil resistance
Important Dimensions
Max length 1.93 in
Max Diameter .545 in
Mounting Flange .658 in
Weight 1 oz (28 Grams)
Mounting With small diameter flange for mounting through hole in chassis. An appropriately sized rubber grommet or adhesive could be utilized.
Condition New, unused, old stock, guaranteed good. (Note: Some supplied with Jennings labels, some without.)
Manufacturer's datasheet link: http://www.jenningstech.com/pdf/rel/RF_60_61_64.pdf
Price: $59.00 each (Order Now!) |
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Kilovac H-8 glass SPDT vacuum relay
The Kilovac H-8 has a threaded base .8 inch diameter, with mounting nuts supplied. Electrical ratings: SPDT contacts rated 15 kv peak, 15 amps RMS continuous. 15 ms close speed or less, 15 ms release. Coil resistance 265 ohms, 26VDC. Rated 1 million operations life. Supplied with solder tab connectors. Length overall is 2.8 inches. Maximum diameter is 1.375 inches at contacts. Weight is 3 ounces. Condition is removed from equipment, tested, and guaranteed.
Price: $69 each (Order Now!) |
Jennings RB1D-28N302 SPDT glass vacuum relay
The Jennings RB1D features an integral, six hole mounting flange. electrical ratings: SPDT contacts rated 12 kv peak @ 60 hz, 5 kv peak @ 30 mhz. 15 amps RMS continuous @ 60 hz, 4a continuous @ 30 Mhz. 18 ms close speed or less, 8/9 ms release. Coil resistance 265 ohms, 26VDC. Rated 1 million operations life. Supplied with optional high-current compression terminal connectors. Length overall is 2.8 inches. Flange diameter is 1.375 inches. Condition is removed from equipment, tested, and guaranteed.
Price: $69 each (Order Now!) |
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 Kilovac KC-2/S26
Kilovac KC-2/S26 ceramic vacuum relay, SPDT (single pole, double throw) Flange mount version. Close equivalent to the Jennings RJ2C. Coil is 26 VDC, with 250 ohms resistance. Contacts rated at 50 amps maximum, 15 kv operating, and 17 kv peak. Close speed is 15 ms., Release speed is 9 ms., and life is rated at 1,000,000 operations. Length overall is 1.93 inches Weight is 3 ounces. Relay body is 1 inch diameter With 1.62 inch diameter flange with 3 holes / slots for mounting. Removed from equipment, checked, and guaranteed.
Price: $149. (Order Now!)
 Gigavac G2WF SPDT vacuum relay
This heavy duty vacuum relay is suitable for many high-power applications requiring this (SPDT) contact configuration. Contacts are rated 50 amps, and 15kv, (20 kv peak)! This IS an RF rated relay! Brand new, unused stock. (Similar in size and ratings to the Jennings RJ2 and Kilovac KC-2 series.)
Ceramic body for extra ruggedness and current handling capability. Flange mount type (3 mounting slots). These are relatively compact, as shown in the accompanying photo with a US one dollar bill for size reference. For manufacturer's data sheet, click here: http://www.gigavac.com/products/relays/datasheets/g2/index.htm
Body diameter, not including terminals, is 1 inch. Flange diameter is 1.56 inches. Height, (overall) is 2.125 inches. Weight is 84 grams, or 3 ounces . Terminals are drilled and tapped, and are furnished with mating screws. Furnished with 26 vdc coil, (250 ohms). Note: an optional 12 vdc coil (60 ohms) is also available for this relay, and is normally a stocked item. Mfr's list price: $595. By means of a special purchase, we have an unbelievable price on this relay. far too low to publish! EMAIL for your price. Refer to pricing on Gigavac G2WF vacuum relay.
EMAIL for your price. Refer to pricing on Gigavac G2WF vacuum relay.
 Kilovac HC-2/S3
Kilovac HC-2/S3 vacuum relay. SPDT Ceramic, with epoxy / plastic encapsulation. This relay is physically similar to the HC-1 or the Jennings RJ1A, but is not rated for RF frequencies. This relay has copper contacts for high current capacity of 25 amps at DC to 60 Hz., and the encapsulation allows a higher rated operating voltage of 8 Kv, with a peak test voltage of 10 Kv.! This relay meets MIL-R-83725 requirements. It is very fast, with a close speed of 6 ms, and release speed of 6 ms. Coil voltage is 26.5 VDC, and coil resistance is 335 ohms.Pull-in at 16 VDC, drop out 1-10 VDC. Long life rating of 2 million operations. Excellent for high voltage power supply applications. Weight is 1.4 ounces. Length approximately 2 inches overall. With 9/16 inch diameter threaded base for mounting. Nut not included, but is available at $1 additional. Removed from equipment, excellent, guaranteed.
Price: $29.00 (Order Now!)
Kilovac H-25
 Kilovac H-25 glass vacuum relay with SPDT contacts (Normally Closed).
Test Voltage 60 KV
Peak Voltage 50 KV
Current Carry Amps (RMS) 30 amps
Contact Close Speed 60 MS (Milliseconds)
Contact Release Speed 60 MS (Milliseconds)
Rated Life Operations 500,000
Coil Resistance 120 Ohms
Coil Voltage 26.5 VDC
Important Dimensions (This relay is physically very large)
Max length 7 in
Max Diameter 3.05 in
Mounting Flange 3 in
Mounting Hole Diameter 2 in
Weight 30oz (850 grams)
Mounting Large diameter threaded base with supplied nuts
Condition Brand New, unused, old stock. Guaranteed good.
Datasheet link: http://relays.tycoelectronics.com/datasheets/k64c_h25.pdf
Price: $495.00 each (Order Now!)
Why pay thousands of dollars?
Replacement Coils
When a vacuum relay fails, it is of course very rare for both the removable coil and the contact set to both fail at the same time. Lightning damage is normally the only cause of simultaneous failure. The coil is easily removable by means of a screw or nut on the very bottom of most vacuum relays. This leaves the contact set (with contacts still sealed in a vacuum). The failed component can be easily replaced at well less than the cost of an entire new unit.
We have a good assortment of coils (All are 26.5 vdc coils unless specifically noted otherwise.) If you do not see the coil you want, please feel free to call or email with your needs. We frequently have additional coils that are not shown here.
COILS:
Kilovac H-8 coil..........$12.50 |
Jennings RB1D coil.........$12.50 |
Jennings RE6B coil.....$29.00 |
Kilovac H-9 coil..........$29.00 |
Jennings RB-3 coil..........$29.00 |
Jennings RS-8 coil........$49.00 |
Kilovac H-14 coil.......$29.00 |
Jennings RB-4 coil.........$49.00 |
Jennings RJ1 coil ..$22.50 (26 or 12 vdc) |
Kilovac H-16 coil........$29.00 |
Jennings RJ-2 coil.........$29.00 |
Kilovac HC-1 or HC-2 coil ...$22.50 (26 or 12 vdc) |
Replacement relay for ART-13 transmitter
We have obtained a small supply of these VERY hard to find replacement vacuum relays as used in the famous ART-13 military autotune transmitter from WW2. Part number is GL-1S21. Some look unused, others appear to have been removed from equipment. All are guaranteed. SPDT. Actuated by external mechanism from the transmitter. Note: To remove or reattach the contact terminals, tiny Bristol spline wrenches may be required. They are cheaply available as the SS-508 L-key kit, here: http://www.mgs4u.com/Bristol-spline-L-keys.htm Price each: $49.00 (Order Now!)
Ordering:
To order, use our secure online order form, or call us Monday through Friday
7 AM - 4 PM
Eastern time at 770-973-6251.
You may also print the order form using your browser's print button and fax your order to us at 815-461-7730. PLEASE give us your email address so that we can easily contact you in case we have a question.
Visa and Mastercard accepted! 
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