G9TB
AC Power Latching Relay
120 A Compact and high power
latching relay
• High power switching: 120 A, 276 VAC
• Compact size: 37 mm × 43 mm × 22 mm
• Low temperature-rise
• High overcurrent capability, conforming to IEC62055-31 UC3
RoHS Compliant
Model Number Structure
Application Examples
• Smart Meter
• PV Inverter
G9TB- 1 A - E
12 3 4 5
2. Number of poles
1: 1-Pole
4. Terminal shape
TH: M8 securing screw
TW: Welding terminals
5. Classification
E: High capacity
3. Contact Form
A: SPST-NO
G9TB
1. Relay Function
U: Single-winding latching
K: Double-winding latching
• Lighting control
• EV Charger
Ordering Information
Classification
Contact Form
Single coil
SPST-NO
Double coils
Terminal Shape
M8 securing screw
Welding terminals
M8 securing screw
Welding terminals
Enclosure rating
Flux protection
Model
G9TB-U1ATH-E
G9TB-U1ATW-E
G9TB-K1ATH-E
G9TB-K1ATW-E
Rated coil voltage
Minimum packing unit
12 VDC
25 pcs/tray
12 VDC
Note. When ordering, add the rated coil voltage to the model number.
Example: G9TB-U1ATH-E 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
Item
Rated Voltage
DC
Must set voltage
Rated current (mA)
Coil resistance (Ω)
225
53.3
80% max.
Rated current (mA)
Coil resistance (Ω)
Must set voltage
Set coil
451
Set coil
26.6
(V)
12
Must reset
voltage
% of rated voltage
80% max.
Max. voltage
Power consumption
110% max.
Set coil (W)
Reset coil (W)
Approx. 2.7
Max. voltage
Power consumption
Double-winding Latching Type
Item
Rated Voltage
DC
(V)
12
Reset coil
451
Reset coil
26.6
80% max.
Must reset
voltage
% of rated voltage
80% max.
110% max.
Set coil (W)
Approx. 5.4
Reset coil (W)
Approx. 5.4
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
Item
Contact type
Contact material
Rated load
Rated carry current
Max. switching voltage
Max. switching current
Model
Load
G9TB-U1A -E/G9TB-K1A -E
Resistive load
Inductive load (PF=0.5)
SPST-NO
Ag Alloy
120 A at 276 VAC
100 A at 276 VAC
120 A
276 VAC
120 A
100 A
1
G9TB
AC Power Latching Relay
Characteristics
Item
G9TB-U1A -E
0.4 mΩ max.
Set time *2
25 ms max.
20 ms max.
Reset time *2
25 ms max.
20 ms max.
Minimum pulse width
100 ms
Maximum pulse width
1,000 ms
Insulation resistance *3
Dielectric strength
Impulse withstand
voltage
Vibration resistance
Shock resistance
1,000 MΩ min.
Between coil and contacts
4,000 VAC, 50/60 Hz for 1 min
Between contacts of the
same polarity
2,000 VAC, 50/60 Hz for 1 min
Between coil and contacts
8 kV
Destruction
10 to 55 to 10 Hz, 0.75 mm single amplitude (1.5 mm double amplitude)
Malfunction
10 to 55 to 10 Hz, 0.75 mm single amplitude (1.5 mm double amplitude)
Destruction
1,000 m/s2
Malfunction
100 m/s2
Mechanical
Durability
G9TB
G9TB-K1A -E
Contact resistance *1
100,000 operations min. (at 7,200 operations/h)
10,000 operations typical, resistive load 120 A, 276 VAC (operation: ON for 10 sec, OFF for 20 sec)
Electrical *4
5,000 operations, resistive load 100 A, 276 VAC and then
5,000 operations, inductive load (PF=0.5) 100 A, 276 VAC (operation: ON for 10 sec, OFF for 20 sec) *5
Ambient operating temperature
-40 to 85°C (with no icing or condensation)
Ambient operating humidity
5 to 85%
Weight
Approx. 70 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
G9TB
AC Power Latching Relay
Dimensions
(Unit: mm)
G9TB-U1ATH-E
43.5 max.
35
4
Two, @0.64±0.05
4
22.5 max.
Terminal arrangement/Internal Connections
(TOP VIEW)
10±0.2
4
R S
37.5 max.
- 3
30
21.6
1
2
3
14
7
7
3.5
3
14
Check carefully the coil polarity of the Relay.
Two, 2.1 dia. (HOLE)
3.5
Two, 8.5 dia. (HOLE)
11.5
9.5
16.5
16.5
27
2
6.55
11.55
13.3
13.3
18.95
2
43.5 max.
35
4
Two, @0.64±0.05
4
22.5 max.
G9TB
G9TB-U1ATW-E
Terminal arrangement/Internal Connections
(TOP VIEW)
4
-
R S
- 3
10±0.2
37.5 max.
30
21.6
3.5
12
2
1
Check carefully the coil polarity of the Relay.
Two, 2.1 dia. (HOLE)
2.5
10
10
16
18.95
10.8
2.75
2
2
G9TB-K1ATH-E
43.5 max.
35
4
4
Three, @0.64±0.05
22.5 max.
Terminal arrangement/Internal Connections
(TOP VIEW)
10±0.2
37.5 max.
- 5
S
4
R
- 3
5±0.1
30
21.6
1
2
3
14
7
7
3.5
Two, 8.5 dia. (HOLE)
9.5
16.5
3.5
14
3
Two, 2.1 dia. (HOLE)
Check carefully the coil polarity of the Relay.
11.5
16.5
27
2
11.55
13.3
6.55
13.3
18.95
2
3
G9TB
AC Power Latching Relay
G9TB-K1ATW-E
22.5 max.
43.5 max.
35
4
Three, @0.64±0.05
4
Terminal arrangement/Internal Connections
(TOP VIEW)
10±0.2
- 5
S
4
R
- 3
37.5 max.
5±0.1
30
21.6
1
3.5
12
2
Check carefully the coil polarity of the Relay.
Two, 2.1 dia. (HOLE)
2.5
10
10
16
18.95
10.8
2.75
2
2
Engineering Data
1000
AC Resistive Load
120
100
1000
AC Inductive Load (PF=0.5)
100
10
10
1
1
1
4
Switching current (A)
Maximum Switching Capacity
G9TB-U1A -E
G9TB-K1A -E
Switching current (A)
G9TB
Note 1. Relay is delivered as "set" 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.
10
276
100
1000
Switching voltage(V)
1
10
100
276
1000
Switching voltage(V)
G9TB
AC Power Latching Relay
Safety Precautions
• Please refer to "PCB Relays Common Precautions" for correct use.
Correct Use
Installation
• 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.
• 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.
Relay Service Life
• 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.
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.
M8 screws : 8.82 to 9.80 N·m
Use a spring washer in order to prevent deformation and it from loosening.
Allow suitable slack on leads when wiring, and do not apply excessive force to the terminals.
G9TB
•
•
•
•
•
• Application examples provided in this document are for reference only. In actual applications, confirm equipment functions and safety before using the product.
• Consult your OMRON representative before using the product under conditions which are not described in the manual or applying the product to nuclear control systems,
railroad systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems or equipment that may
have a serious influence on lives and property if used improperly. Make sure that the ratings and performance characteristics of the product provide a margin of safety for the
system or equipment, and be sure to provide the system or equipment with double safety mechanisms.
Note: Do not use this document to operate the Unit.
OMRON Corporation
Electronic and Mechanical Components Company
Contact: www.omron.com/ecb
Cat. No. J221-E1-01
0318(0318)(O)
5