Product Details Portlet

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
  • Conforms to UL 508
RoHS適合
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Classification Contact Form Terminal Shape Enclosure rating Model Rated coil voltage Minimum packing unit
Single coil SPST-NO M8 securing screw Flux protection G9TB-U1ATH-E 12 VDC 25 pcs/tray
Welding terminals G9TB-U1ATW-E
Double coils M8 securing screw G9TB-K1ATH-E 12 VDC
Welding terminals G9TB-K1ATW-E
Coil
Single-winding Latching Type
Rated Voltage Item
(V)
Rated current (mA)
Coil resistance (Ω)
Must set voltage
Must reset voltage
Max. voltage
Power consumption
% of rated voltage
Set coil (W)
Reset coil (W)
DC 12 225 53.3 80% max. 80% max. 110% max. Approx. 2.7

Double-winding Latching Type
Rated Voltage Item
(V)
Rated current (mA)
Coil resistance (Ω)
Must set voltage
Must reset voltage
Max. voltage
Power consumption
Set coil
Reset coil
Set coil
Reset coil
% of rated voltage
Set coil (W)
Reset coil (W)
DC 12 451 451 26.6 26.6 80% max. 80% max. 110% max. Approx. 5.4 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 Model
Load
G9TB-U1A□ -E/G9TB-K1A□ -E
Resistive load
Inductive load (PF=0.5)
Contact type SPST-NO
Contact material Ag Alloy
Rated load 120 A at 276 VAC 100 A at 276 VAC
Rated carry current 120 A
Max. switching voltage 276 VAC
Max. switching current 120 A 100 A

Characteristics
Item
G9TB-U1A□ -E
G9TB-K1A□ -E
Contact resistance *1 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 1,000 MΩ min.
Dielectric strength 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
Impulse withstand voltage Between coil and contacts 8 kV
Vibration resistance 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)
Shock resistance Destruction 1,000 m/s2
Malfunction 100 m/s2
Durability Mechanical 100,000 operations min. (at 7,200 operations/h)
Electrical *4 10,000 operations typical, resistive load 120 A, 276 VAC (operation: ON for 10 sec, OFF for 20 sec)
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.

G9TB-U1ATH-E

Terminal arrangement/Internal Connections
        (TOP VIEW)

Check carefully the coil polarity of the Relay.

G9TB-U1ATW-E

Terminal arrangement/Internal Connections
     (TOP VIEW)


Check carefully the coil polarity of the Relay.

G9TB-K1ATH-E

Terminal arrangement/Internal Connections
       (TOP VIEW)


Check carefully the coil polarity of the Relay.

G9TB-K1ATW-E

Terminal arrangement/Internal Connections
      (TOP VIEW)


Check carefully the coil polarity of the Relay.

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.

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.

●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.

●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.