New Product News
DC Power Relays
G9EJ-1-E
Compact DC Power Relays Capable of
Switching 400 V 15 A DC loads
• Actualize a high capacity interruption through the function of
extinction of magnetic arc by adopting high-efficiency magnetic circuit.
• Actualize improvement of inrush-withstand performance and a
long-life by adopting Omron's own contact driving system.
• Actualize the power saving.
• Small and lightweight type.
Size: H31 mm × W27 mm × L44 mm, Weight: approx. 45 g
RoHS Compliant
Refer to the Precautions on page 5.
Model Number Structure
G9EJ-@-@-@-@-@
——— ——
1
2 3 4 5
1. Number of Poles
1: 1 pole
4. Classification
E: High capacity
2. Contact Form
Blank: SPST-NO
5. Approved standards
UVD: UL, CSA, VDE approved standard type
3. Terminal Form
Blank: Tab terminals (#250 terminals)
P: PCB terminals
Ordering Information
Terminals
Models
Switching/current
conduction models
Coil terminals
Contact terminals
Tab terminals
#250
Tab terminals
#250
Contact form
12 VDC
SPST-NO
PCB terminals
PCB terminals
Rated coil voltage
24 VDC
12 VDC
24 VDC
Model
Minimum packing unit
(quantity)
G9EJ-1-E-UVD
10
G9EJ-1-P-E-UVD
Ratings
●
Coil
Rated voltage
Rated current
Coil resistance
12 VDC
100 mA
120 Ω
24 VDC
50 mA
480 Ω
Must-operate voltage
60% max. of rated
voltage
Must-release voltage
Maximum voltage (See note 3)
Power consumption
5% min. of rated voltage
130% of rated voltage
(at 23°C within 10 minutes)
Approx. 1.2 W
Note: 1. The figures for the rated current and coil resistance are for a coil temperature of 23°C and have a tolerance of ±10%.
Note: 2. The figures for the operating characteristics are for a coil temperature of 23°C .
Note: 3. The figure for the maximum voltage is the maximum voltage that can be applied to the relay coil.
●
Contacts
Item
Rated load
Resistive load
15 A at 400 VDC
Rated carry current
15 A
Maximum switching voltage
400 V
Maximum switching current
15 A
1
G9EJ-1-E
DC Power Relays
Characteristics
Item
G9EJ-1(-P)-E-UVD
100 mΩ max.
0.2 V max. (for a carry current of 15 A)
50 ms max.
30 ms max.
Between coil and contacts
1,000 MΩ min.
Insulation resistance *3
Between contacts of the same polarity 1,000 MΩ min.
Between coil and contacts
2,500 VAC 1 min
Dielectric strength
Between contacts of the same polarity 2,500 VAC 1 min
Impulse withstand voltage *4
4,500 V
10 to 55 to 10Hz, 0.75 mm single amplitude
Destruction
(Acceleration: 2.94 to 88.9 m/s2)
Vibration resistance
10 to 55 to 10Hz, 0.75 mm single amplitude
Malfunction
(Acceleration: 2.94 to 88.9 m/s2)
Destruction
490 m/s2
Shock resistance
Energized
490 m/s2
Malfunction
Deenergized
98 m/s2
Mechanical endurance *5
200,000 ops. min.
Electrical endurance *6
400 VDC, 15 A, 10,000 ops. min.
Electrical endurance (condenser load) *6
400 VDC, 25 A, 100,000 ops. min.
Short-time carry current
30 A (20 sec.)
Overload switching
400 VDC, 30A, 100 ops. min.
Maximum interruption current
50 A at 400 VDC (5 times)
Reverse polarity interruption
–15 A at 400 VDC (1,000 times min.)
Ambient operating temperature
–40 to 70°C (with no icing or condensation)
Ambient operating humidity
5% to 85%
Weight
Approx. 45 g
Contact resistance *1
Contact voltage drop
Operate time *2
Release time *2
Note: The above values are initial values at an ambient temperature of 23°C unless otherwise specified.
*1. The contact resistance was measured with 1 A at 5 VDC using the voltage drop method.
*2. Measurement conditions: With rated operating voltage applied (without diode), not including contact bounce.
*3. The insulation resistance was measured with a 500 VDC megohmmeter.
*4. The impulse withstand voltage was measured with a JEC-212 (1981) standard impulse voltage waveform (1.2 × 50 µs).
*5. The mechanical endurance was measured at a switching frequency of 3,600 operations/hr.
*6. The electrical endurance was measured at a switching frequency of 60 operations/hr.
Engineering Data
1,000
500
300
100
DC resistive load
●
Electrical Endurance
(Switching Performance)
10,000
5,000
3,000
Operations
●
Maximum Switching Capacity
Operations
Switching current (A)
●
Electrical Endurance
(Interruption Performance)
10,000
5,000
3,000
1,000
1,000
500
300
500
300
50
Switching 400-VDC resistive
load (positive direction)
100
30
50
30
5
10
10
3
5
3
5
3
10
1
30
50
100
300
1
500 1,000
1
3
5
10
Switching voltage (V)
100,000
10,000
1,000
50
1
100
Interrupting 400-VDC resistive
load (positive direction)
10
30
Switching current (A)
●
Must-operate Voltage and Mustrelease Voltage Distributions
(Number of Relays × Percentage of
Rated Voltage)
Number of Relays
Energizing time (s)
Carry Current vs. Energizing Time
30
35
Must-operate voltage
Must-release voltage
30
25
Number: 64
50
100
Switching current (A)
●
Time Characteristic Distributions
(Number of Contacts × Time (ms))
Number of Contacts
10
●
100
50
30
35
Operate time
Release time
30
25
Number: 64
20
20
15
15
10
10
5
5
100
10
0
1
1
3
5
10
30
50
100
Switching current (A)
2
20
40
60
80
100
Percentage of rated voltage (%)
0
5
10
15
20
25
15
Time (ms)
G9EJ-1-E
1
Number: 5
0.9
Unconfirmed area
0.8
0.7
10.0
Must-operate voltage
8.0
Must-release voltage
6.0
4.0
Shock Resistance
10.0
4.0
2.0
2.0
0.0
0.0
−2.0
−2.0
0.3
−4.0
−4.0
0.2
−6.0
−6.0
Number: 5
0.1
Number: 5
−8.0
0
1
3
5
10
30
50
100
Frequency (Hz)
Must-release voltage
6.0
0.5
Confirmed area
Must-operate voltage
8.0
0.6
0.4
●
●
Vibration Resistance
Rate of change (%)
●
Vibration Malfunction
Rate of change (%)
Single amplitude (mm)
●
DC Power Relays
−8.0
−10.0
−10.0
Start
After test
Characteristics were measured after applying vibration
at a frequency of 10 to 55 Hz (single amplitude of 0.75
mm) to the test piece (not energized) for 2 hours each
in 3 directions. The percentage rate of change is the
average value for all of the samples
Start
After test
Characteristics were measured after applying a shock
of 490 m/s2 to the test piece 3 times each in 6 directions
along 3 axes.
The percentage rate of change is the average value for
all of the samples.
Shock Malfunction
Z
Z´
Y
500
400
300
X
X´
X Y
Z
500
Y´
400
300
X
200
Deenergized
Deenergized
X Y
Y´
Z
100
0
0
X´
2
Unit: m/s
Sample: G9EJ-1-E-UVD
Number: 5
X´
200
100
Z´
Z
Z´
Y
Energized
Y´
The value at which malfunction occurred was
measured after applying shock to the test piece
3 times each in 6 directions along 3 axes.
X´
Z´
Unit: m/s2
Sample: G9EJ-1-P-E-UVD
Number: 5
Energized
Y´
The value at which malfunction occurred was
measured after applying shock to the test piece
3 times each in 6 directions along 3 axes.
3
G9EJ-1-E
DC Power Relays
Dimensions (Unit: mm)
G9EJ-1-E-UVD
Mounting Hole Dimensions
(TOP VIEW)
44
4
3
2 (−)
(+)1
38
31
20.9
8.5
0.8
15.5
27 15.4 8 3.5
Note: Be sure to connect terminals
with the correct polarity.
Coils do not have polarity.
0.8
6.3
0.8
6.3
Mounting Hole Dimensions
Connecting terminals
(#250 tab)
Two, M3 or 3.5-dia. holes
11
Dimension (mm) Tolerance (mm)
10 or lower
±0.3
10 to 50
±0.5
30
40±0.1
2
1
G9EJ-1-P-E-UVD
Mounting Hole Dimensions
(TOP VIEW)
31
27
4
3
2 (−)
(+)1
32.2 30
1.2
4
0.8
1.2
Note: Be sure to connect terminals
with the correct polarity.
Coils do not have polarity.
1.2
6.3
Mounting Hole Dimensions
Relay Mounted on PCB (Reference Information)
Six, 1.7
(3.25)
5.1±0.1
0.8
+0.1
0 dia.
Dimension (mm) Tolerance (mm)
10 or lower
±0.3
10 to 50
±0.5
(32.5)
15.4
15.5
8.5
15.4±0.1
16.3±0.1
(5.35)
0.8
(3.1)
20.9±0.1
(7)
20.9
Approved standards
UL Recognized:
CSA Certified:
File No.E41515
File No.LR31928
VDE Certified:
File No.40037110
Model
Coil ratings
Contact ratings
Pollution level
Model
Coil ratings
Contact ratings
Pollution level
G9EJ-1(-P)-E-UVD
12 V, 24 V
15 A, 500 VDC (Resistive)
2
G9EJ-1(-P)-E-UVD
12 V, 24 V
15 A, 500 VDC (Resistive)
2
4
G9EJ-1-E
DC Power Relays
Precautions
WARNING
Take measures to prevent contact with charged parts
when using the Relay for high voltages.
Precautions for Correct Use
Refer to the relevant catalog for common precautions.
1. The G9EJ Relays' contacts have polarity.
Be sure to perform connections with the correct polarity.
If the contacts are connected with the reverse polarity, the
switching characteristics specified in this document cannot be
assured.
2. Do not drop or disassemble this Relay. Not only may the
Relay fail to meet the performance specifications, it may also
result in damage, electric shock, or burning.
3. Do not use these Relays in strong magnetic fields of 800 A/m
or higher (e.g., near transformers or magnets). The arc discharge that occurs during switching may be bent by the magnetic field, resulting in flashover or insulation faults.
4. This Relay is a device for switching high DC voltages. If it is
used for voltages exceeding the specified range, it may not
be possible to interrupt the load and burning may result. In
order to prevent fire spreading, use a configuration in which
the current load can be interrupted in the event of emergencies.
In order to ensure safety of the system, replace the Relay on
a regular basis.
5. If the Relay is used for no-load and/or minute load switching,
the contact resistance may increase and so confirm correct
operation under the actual operating conditions.
6. With this Relay, if the rated voltage (or current) is continuously applied to the coil and contacts, and then turned OFF
and immediately ON again, the coil temperature, and consequently the coil resistance, will be higher than usual. This
means that the must operate voltage will also be higher than
usual, exceeding the rated value ("hot start"). In this case,
take the appropriate countermeasures, such as reducing the
load current or restricting the energizing time or ambient
operating temperature.
7. The ripple percentage for DC relays can cause fluctuations in
the must-operate voltage or humming. For this reason,
reduce the ripple percentage in full-wave rectified power supply circuits by adding a smoothing capacitor. Ensure that the
ripple percentage is less than 5%.
8. Ensure that a voltage exceeding the specified maximum voltage is not continuously applied to the coil. Abnormal heating
in the coil may shorten the lifetime of the insulation coating.
9. Do not use the Relay at a switching voltage or current greater
than the specified maximum values. Doing so may result in
arc discharge interruption failure or burning due to abnormal
heating in the contacts.
10. The contact ratings are for resistive loads. The electrical
endurance with inductive loads is inferior to that of resistive
loads. Confirm correct operation under the actual operating
conditions.
11. Do not use the Relay in locations where water, solvents,
chemicals, or oil may come in contact with the case or terminals. Doing so may result in deterioration of the case resin or
abnormal heating due to corrosion or contamination of the
terminals. Also, if electrolyte adheres to the output terminals,
electrolysis may occur between the output terminals, resulting in corrosion of the terminals or wiring disconnections.
12. Be sure to turn OFF the power and confirm that there is no
residual voltage before replacing the Relay or performing wiring.
13. The distance between crimp terminals or other conductive
parts will be reduced and insulation properties will be lowered
if wires are laid in the same direction from the contact terminals. Use insulating coverings, do not wire in the same direction, and take other measures as required to maintain
insulation properties.
14. Use either a varistor, or a diode plus Zener diode as a protective circuit against reverse surge in the relay coil. Using a
diode alone will reduce the switching characteristics.
15. Use two M3 screws to mount a Relay with tab terminals. (The
tightening torque is 0.98 N·m.)
16. Manually mount Relays with PCB Terminals. Do not use automatic soldering for them.
Do not bend the terminals to secure the Relay to the PCB.
17. A Relay with PCB Terminals weighs approximately 45 g.
Be sure that the PCB is strong enough to support it.
18. For the PCBs, we recommend dual-side through-hole PCBs
to reduce solder cracking from heat stress.
19. The coil terminals (A in the figure) and contact terminals (B in
the figure) on Relays with PCB terminals have charged metal
parts. Also, the shaded part in the following diagram may also
be charged. When you use the Relay, make sure that there is
no metal pattern on the corresponding part of the PCB.
Detail of Area A
Detail of Area B
(1)
(1)
1.2
A
6.3
6.3
B
6
3
Charged metal part
9
5
• 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. J195-E1-05
1215 (0114) (O)