SPST Relays

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SPST Relays

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.

 is our international representative for HV relay.
PicturesGL Type Rated
Operating
Voltage
(KV)
Hot
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)
Mech.
Life
(times)
Weight
Nom
(g)
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 2 Million 57
GL81B 10KV * 10 5,20 or 30 SPDT-NC / * * * * * *
GR5MTA 15KV Yes 15 5 SPST-NC 1/8 0.25 3 2 100 1 Billion 28
GL22 25KV Yes 25 65 SPST-NO 2.5/2.5 0.01 18 10 30 2 Million 342
G62L 25KV Yes 25 18 * -/- 0.5 15 15 20 1 Million 340
G61 35KV Make Only 35 10 SPST-NO -/- 1 15 15 20 1 Million 336
G61L 35KV Make Only 35 10 * -/- 1 15 15 20 1 Million 336
G64 50KV Make Only 50 10 SPDT -/- 1 15 15 10 1 Million 340