Omron-Electronics-G9TA-U1AP-DC12

G9TA  

AC Power Latching Relay  

60 A High power latching relay  

• High power switching, Compact size  

• High magnetic latching force provides vibration resistance  

• Low contact resistance  

• PCB terminals type available  

• Conforms to UL 508 (Except PCB terminals type)  

RoHS Compliant  

Model Number Structure  

Application Examples  

• Smart Meter  

• Lighting control  

G9TA

–



1 A

  

• PV Inverter  

• EV Charger  

1 2 3

 

4  

2. Number

 

of poles  

1: 1-Pole  

1. Relay

 

Function  

U: Single-winding latching  

K: Double-winding latching  

G

9

T

A

3. Contact

 

Form  

A: SPST-NO  

4. Terminal

 

shape  

TH: M5 securing screw  

TW: Welding terminals  

P: PCB terminals  

Ordering Information  

Classification  

Contact Form  

Terminal Shape  

M5 securing screw  

Welding terminals  

PCB terminals  

M5 securing screw  

Welding terminals  

PCB terminals  

Enclosure rating  

Flux protection  

Model  

Rated coil voltage  

Minimum packing unit  

G9TA-U1ATH  

G9TA-U1ATW  

G9TA-U1AP  

G9TA-K1ATH  

G9TA-K1ATW  

G9TA-K1AP  

Single coil  

12 VDC  

12 VDC  

SPST-NO  

25 pcs/tray  

Double coils  

Note. When ordering, add the rated coil voltage to the model number.  

Example: G9TA-U1ATH DC12  

Rated coil voltage  

However, the notation of the coil voltage on the product case as well as on the packing will be marked as[][] VDC.  

Ratings  



Coil  

Single-winding Latching Type  

Must reset  

voltage  

% of rated voltage  

80% max.  

Item  

Must set voltage  

80% max.  

Max. voltage  

Power consumption  

Rated current (mA)  

83  

Coil resistance (

Ω

)  

Rated Voltage  

DC  

(V)  

Set coil (W)  

Reset coil (W)  

12  

145  

110% max.  

Approx. 1.0  

Double-winding Latching Type  

Must reset  

voltage  

% of rated voltage  

80% max.  

Item Rated

 

current (mA)  

(V) Set

 

coil Reset

 

coil Set

 

coil Reset

 

coil  

217 217

 

55 55  

Coil resistance (

Ω

) Must

 

set voltage  

Max. voltage  

110% max.  

Power consumption  

Rated Voltage  

DC  

Set coil (W)  

Approx. 2.6  

Reset coil (W)  

Approx. 2.6  

12  

80% max.  

Note 1. The rated current and coil resistance were measured at a coil temperature of 23°C with tolerances of ± 10%.  

Note 2. The operating characteristics are measured at a coil temperature of 23°C.  

Note 3. The maximum permissible voltage is the maximum value of the fluctuation range for the Relay coil operating power supply and was measured at an ambient  

temperature of 23°C.  



Contacts  

Model  

Load  

G9TA-U1A



/G9TA-K1A

  

Resistive load

 

Inductive load (PF=0.5)  

Item  

Contact type  

Contact material  

Rated load  

SPST-NO  

Ag Alloy  

60 A at 250 VAC  

Rated carry current  

Max. switching voltage  

Max. switching current  

60 A  

250 VAC  

60 A  

1

G9TA  

AC Power Latching Relay  

Characteristics  

Item  

G9TA-U1A

  

G9TA-K1A

  

Contact resistance *1  

Set time *2  

2 m

Ω

max.  

30 ms max.  

30 ms max.  

100 ms  

20 ms max.  

20 ms max.  

Reset time *2  

Minimum pulse width  

Maximum pulse width  

Insulation resistance *3  

1,000 ms  

1,000 M

Ω

min.  

Between coil and contacts  

4,000 VAC, 50/60 Hz for 1 min  

Dielectric strength  

Between contacts of the  

same polarity  

1,500 VAC, 50/60 Hz for 1 min  

Impulse withstand  

voltage  

Between coil and contacts  

6 kV  

Destruction  

Malfunction  

Destruction  

Malfunction  

Mechanical  

10 to 150 to 10 Hz, f < 60 Hz: Constant amplitude 0.075 mm, f > 60 Hz: Constant acceleration 9.8 m/s

2  

Vibration resistance  

Shock resistance  

10 to 55 to 10 Hz, 0.75 mm single amplitude (1.5 mm double amplitude)  

1,000 m/s

2  

100 m/s

2  

100,000 operations min. (at 7,200 operations/h)  

Durability  

5,000 operations, resistive load and then  

5,000 operations, inductive load (PF=0.5) (operation: ON for 10 sec, OFF for 20 sec) *5  

Electrical *4  

Ambient operating temperature  

Ambient operating humidity  

Weight  

-40 to 85°C (with no icing or condensation)  

5 to 85%  

G

9

T

A

Approx. 42 g  

Note. The values given above are initial values.  

*1. Measurement

 

conditions: 24 VDC, 1 A, voltage drop method.  

*2. Measurement

 

conditions: Rated operating voltage applied, not including contact bounce.  

Ambient temperature: 23°C  

*3. Measurement

 

conditions: The insulation resistance was measured with a 500 VDC megohm meter at the same locations as the dielectric strength was measured.  

*4. Contact

 

your OMRON sales representative for Electrical Durability technical data.  

*5. The

 

characteristic meets IEC62055-31 test requirement.  

2

G9TA  

Dimensions  

AC Power Latching Relay  

Please visit our website, which is noted on the last page.  

CAD Data  

(Unit: mm)  

G9TA-U1ATH  

39.1 max.  

Terminal arrangement/Internal Connections  

(TOP VIEW)  

34.5 max.  

4

S

R

–

30  

–

3

4

1

2

4.95  

9.9  

4

5

10  

5

Check carefully the coil polarity of the Relay.  

6.7  

10  

4.65  

9.3  

Two,

ꢀ

5.5 dia.  

5

0.05  

7.7  

18.55  

Two,

ꢀ

0.64 0.01  

18 max.  

14.2  

3.7  

1

1

3.7  

CAD Data  

G

9

T

A

G9TA-U1ATW  

39.1 max.  

Terminal arrangement/Internal Connections  

(TOP VIEW)  

S

R

–

34.5 max.  

30  

–

1

2

3

4

4

8.8  

Check carefully the coil polarity of the Relay.  

5

0.05  

7.7  

Two,

ꢀ

0.64 0.01  

18.55  

10.6  

12  

18 max.  

14.2  

1

1

CAD Data  

G9TA-U1AP  

PCB Mounting Holes  

(BOTTOM VIEW)  

39.1 max.  

18 max.  

5

0.1  

8.7 0.1  

19.05 0.1  

(2.8)  

(3.4)  

36.7 max.  

30  

0.6 0.1  

4

4

0.1  

0.1  

Two,

ꢀ

1.2 0.1  

5.5  

Two,

ꢀ

0.64  

4

4

19.05  

1

8.7  

5

Six,

ꢀ

2 0.1  

1

6-1.5  

Terminal arrangement/Internal Connection  

(BOTTOM VIEW)  

1

2

3

–

4

–

S

R

Check carefully the coil polarity of the Relay.  

CAD Data  

3

G9TA  

AC Power Latching Relay  

(Unit: mm)  

G9TA-K1ATH  

39.1 max.  

Terminal arrangement/Internal Connections  

(TOP VIEW)  

34.5 max.  

30  

S

–

4

R

1

2

3

5

4

5

4

6.7  

Check carefully the coil polarity of the Relay.  

10  

5

10  

4.65  

9.3  

Two,

ꢀ

5.5 dia.  

4.95  

9.9  

5

0.05  

5 0.05  

7.7  

Three,

ꢀ

0.64 0.01  

13.55  

18 max.  

14.2  

3.7  

3.7  

1

1

CAD Data  

G9TA-K1ATW  

G

9

T

A

39.1 max.  

Terminal arrangement/Internal Connections  

(TOP VIEW)  

34.5 max.  

30  

4

S

–

4

R

1

2

3

5

8.8  

Check carefully the coil polarity of the Relay.  

5

0.05  

5

0.05  

7.7  

Three,

ꢀ

0.64 0.01  

13.55  

10.6  

12  

18 max.  

14.2  

CAD Data  

1

1

G9TA-K1AP  

PCB Mounting Holes  

(BOTTOM VIEW)  

18 max.  

39.1 max.  

5

0.1 5 0.1  

8.7 0.1  

14.05 0.1  

(2.8)  

(3.4)  

36.7 max.  

30  

0.6 0.1  

4

4

0.1  

0.1  

Three,

ꢀ

1.2 0.1  

5.5  

Three,

ꢀ

0.64  

4

4

5

5

8.7  

Six,

ꢀ

2 0.1  

14.05  

1

6-1.5  

1

Terminal arrangement/Internal Connections  

(BOTTOM VIEW)  

1

2

3

4

–

5

S

R

Check carefully the coil polarity of the Relay.  

CAD Data  

Note 1. Relay is delivered as “reset” status unless specified otherwise. However, the status may change due to the shock from transportation or mounting operations.  

Therefore, it is recommended the relay should be set to the expected status via a power supply before being used.  

Note 2. In order to maintain “set” or “reset” status, the energizing voltage to coil & the pulse width shouldn’t lower then the rated value.  

Note 3. Do not energize both of set and reset coil simultaneously.  

Note 4. Energizing time longer than 1,000 ms should be avoided.  

4

G9TA  

AC Power Latching Relay  

Engineering Data  



Maximum Switching Capacity  

G9TA-U1A



 

G9TA-K1A

  

1000  

1000  

100  

100  

60  

AC Resistive Load  

AC Inductive Load (PF=0.5)  

60  

10  

10  

1

1

1

10  

100 250  

1000  

1

10  

100 250  

1000  

Switching voltage (V)  

Switching voltage (V)  

Approved Standards  

The approval rating values for overseas standards are different from the performance values determined individually. Confirm the values  

before use.  



UL Recognized:  

(File No. E41515)  

Model  

Contact form  

Coil ratings  

Contact ratings  

60 A, 277 V AC (Resistive) 70°C  

Number of test operations  

6,000  

G

9

T

A

G9TA-U1ATH  

G9TA-U1ATW  

G9TA-K1ATW  

G9TA-K1ATH  

60 A, 250 V AC (Resistive) and then 60 A,  

250 V (PF=0.5), 10 sec. ON / 20 sec. OFF,  

40°C  

SPST-NO (1a)  

12V DC  

5,000 for resistive and then  

5,000 for PF=0.5  

Safety Precautions  

• Please refer to “PCB Relays Common Precautions” for correct use.  

Correct Use  



Installation  



Relay Service Life  

• The relay contacts are polarized. Incorrect wiring may cause a  

failure to break the circuit. Wire the Relay with care.  

• Install

 

the Relays in locations that are as dry as possible and  

have as little dust, dirt, and harmful gas.  

• The electrical durability of these Relays is specified as the  

number of load switching operations under a resistive load and  

OMRON-specified standard testing conditions.  

The coil drive circuit, ambient environment, switching  

frequency, or load conditions (e.g., inductive load or capacitor  

load) may reduce the service life and possibly lead to failure to  

break. Always confirm the service life in the actual equipment.  

• Using the Relay under high temperature, high humidity, or  

harmful gas may deteriorate its performance characteristics  

due to condensation or corrosive materials, resulting in failure  

or burn damage to the Relay.  



Wiring  

• Be sure to tighten all screws to the appropriate torque given below.  

• Loose screws may result in burning due to abnormal heat generation during energization.  

• M5 screws: 1.57 to 2.35 N·m  

• Use a spring washer in order to prevent deformation and looseness.  

• Allow suitable slack on leads when wiring, and do not apply excessive force to the terminals.  

Please check each region’s Terms & Conditions by region website.  

OMRON Corporation  

Electronic and Mechanical Components Company  

Regional Contact  

Americas  

Europe  

Asia-Pacific  

China  

Korea  

Japan  

© OMRON Corporation 2018-2020

 

All Rights Reserved.  

In the interest of product improvement, specifications are subject to change without notice.  

Cat. No. J220-E1-03  

0120(0318)  

5