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200

Solid State Relays 

G3NH

Engineering Data

Load Current vs. Ambient Temperature

One Cycle Surge Current: Non-
repetitive

Note: Keep the inrush current to half the rated value if it occurs 

repeatedly.

Input Current vs. Input Impedance

Operation

Replacement Parts

G32A-N Thyristor Module

If the thyristor module is damaged, replace it with a new one.

G3NH-

@

075B, G3NH-

@

150B

G3NH-

@

150B

G3NH-

@

075B

G3NH-

@

075B, G3NH-

@

150B

200

150

100

75

100

80

60

40

20 30

0

20

30

50
37
25

60

0

G3NH-

@

150B

G3NH-

@

075B

Vertical 
mounting

Horizontal mounting

Vertical 
mounting

Horizontal mounting

Ambient temperature (

°

C)

Load current (A)

Inr

ush current (A.

 P

eak)

Energized time (ms)

G3NH (75 to 264 VAC)

Input current (mA)

Input voltage (V)

Input current (mA)

Input voltage (V)

Input impedance (k

)

G3NH (4 to 30 VDC)

Input current

Impedance

Input current

Impedance

Input impedance (k

)

Name

Applicable 

load

Applicable 

Relay

Model

Thyristor 
module

75 A at 75 to 
264 VAC

G3NH-2075B

G32A-N2075

75 A at 150 to 
484 VAC

G3NH-4075B

G32A-N4075

150 A at 75 to 
264 VAC

G3NH-2150B

G32A-N2150

150 A at 150 to 
484 VAC

G3NH-4150B

G32A-N4150

Summary of Contents for G3NH

Page 1: ...State Relay 2 Rated Load Power Supply Voltage 2 200 VAC 4 400 VAC 3 Rated Load Current 075 75 A 150 150 A 4 Terminal Type B Screw terminals 5 Zero Cross Function Blank Equipped with zero cross function Ordering Information List of Models The built in Thyristor Modules can be replaced Refer to the table on page 200 for the model number Note When ordering specify the rated input voltage 1 2 3 4 5 G3...

Page 2: ...0 to 484 VAC G3NH 2150B 100 to 240 VAC 75 to 264 VAC 1 to 150 A 1 800 A 60 Hz 1 cycle G3NH 4150B 180 to 440 VAC 150 to 484 VAC Item G3NH 2075B G3NH 4075B G3NH 2150B G3NH 4150B Operate time 1 2 of load power source cycle 1 ms max DC input 3 2 of load power source cycle 1 ms max AC input Release time 1 2 of load power source cycle 1 ms max DC input 3 2 of load power source cycle 1 ms max AC input Ou...

Page 3: ...0 20 30 0 20 30 50 37 25 60 0 G3NH 150B G3NH 075B Vertical mounting Horizontal mounting Vertical mounting Horizontal mounting Ambient temperature C Load current A Inrush current A Peak Energized time ms G3NH 75 to 264 VAC Input current mA Input voltage V Input current mA Input voltage V Input impedance kΩ G3NH 4 to 30 VDC Input current Impedance Input current Impedance Input impedance kΩ Name Appl...

Page 4: ...p clean the jointing surfaces of the heat sink and thyristor module and apply the new grease supplied as an accessory to the jointing surfaces Secure the thyristor module to the heat sink with the two screws D and tighten each screw to a torque of 2 45 to 2 94 N m 7 Connect the thyristor module to the PWB with the socket The socket may be inserted in either direction Assemble the Base Assembly wit...

Page 5: ...eat sink will rise by approximately 50 C with a rated current flow through the G3NH The G3NH will rise the ambient temperature When mounting the G3NH inside a panel install a fan for proper ventilation When closely mounting the G3NH Solid State Relays side by side reduce the load current 30 lower than the specified value shown in the load current vs ambient temperature graph Take proper measures s...

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