SPST Relays Your Position£ºHome >> Product Introduction
Single Pole Single Throw relays provide the most straightforward approach to isolation. A single stationary contact and a movable contact furnish a simple on-off configuration.  Forms include normally open, NO, and normally closed, NC. Normally open relays provide voltage isolation until coil power is applied. With coil power applied there is continuity through the relay contacts. Normally closed relays provide continuity through closed contacts until coil power is applied where the relay contacts open providing isolation.  GLVAC offers several design styles including High Voltage and RF reed relays along with traditional ceramic vacuum and gas filled High Voltage Relays.  Each of these relay design types offer unique advantages depending on the application. Complete specifications can be found by clicking on the product photo or part number.
GL Type Rated Working Voltage
(KV)
Load Switch Rated Open Voltage(kV Peak) DC or 60Hz Max CONT. Current
(Amps)
Contact Form Contact Capacitance
(pF)
Max Contact Resist
(0hms)
Max Open Time
(ms)
Max Rel. Time
(ms)
Shock 11ms 1/2 Sine
(gpeak)
Weight Nom
(g)
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GR3BJA335 1.5KV No 1.5 3 SPST-NO 0.3/4 0.05 0.8 0.5 100 7
GR2DNA 3KV No 3 2 SPST-NO 1.5/6 0.1 1 1 100 7
GL41A 5KV Yes 5 30 SPST-NO 1.2/1.2 0.02 10 10 50 28
GL41B 5KV Yes 5 30 SPST-NC 1.2/1.2 0.02 10 10 50 28
GR6HBA318 7KV No 7 10 SPST-NO 0.4/5 0.05 2 1 100 24
GR6JNB218 8KV No 8 8 SPST-NC 0.6/2.5 0.05 3 2 100 24
GL47A 8KV Yes 8 12 SPST-NO 1.2/1.2 0.03 10 10 30 26
GL47B 8KV Yes 8 12 SPST-NC 1.2/1.2 0.03 10 10 30 26
GL43A 10KV Yes 10 25 SPST-NO 1.2/1.2 0.02 10 10 50 28
GL43B 10KV Yes 10 25 SPST-NC 1.2/1.2 0.02 10 10 50 28
GR5LTA 10KV No 10 5 SPST-NO 1/8 0.25 2 2 100 28
GR5LTB 10KV No 10 5 SPDT-NC 1/8 0.25 2 2 100 28
GL81A 10KV Yes 10 5,20 or 30 SPST-NO -/- 0.03 10 10 30 57
GL81B 10KV * 10 5,20 or 30 SPDT-NC / * * * * *
GR5MTA 15KV Yes 15 5 SPST-NC 1/8 0.25 3 2 100 28
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