Power PCB Relay
G4A
Miniature Single-pole Relay with 80-A Surge
Current and 20-A Switching Current
• Ideal for motor switching.
• Miniature, relay with high switching power and long
endurance.
• Creepage distance conforms to UL and CSA standards.
• Highly noise-resistive insulation materials employed.
• Standard model available with flux protection construction.
• RoHS Compliant
RCX
VDE
Ordering Information
Classification
Contact form
#250 tab terminals/PCB coil terminals
SPST-NO
PCB terminals/PCB coil terminals
Model
G4A-1A-E
G4A-1A-PE
Note: When ordering, add the rated coil voltage to the model number.
Example: G4A-1A-E DC12
Rated coil voltage
Model Number Legend
G4A
1 2
DC
3 4
5
1. Number of Poles
1: 1 Pole
5. Rated Coil Voltage
3. Terminals
5, 12, 24 VDC
None: #250 tab/PCB coil terminals
P:
Straight PCB/PCB coil terminals
2. Contact Form
A: SPST-NO
4. Special Function
E:
For long endurance
Specifications
■ Contact Ratings
Rated load
20 A at 250 VAC
Rated carry current
20 A
Max. switching voltage
250 VAC
Max. switching current
20 A
Max. switching capacity
5,000 VA
Min. Permissible Load
(reference value - see note)
100 mA at 5 VDC
Note: P level: λ60 = 0.1 x 10-6/operation
Power PCB Relay
G4A
221
■ Coil Ratings
Rated voltage
5 VDC
12 VDC
Rated current
180 mA
75 mA
37.5 mA
Coil resistance
27.8 Ω
160 Ω
640 Ω
Armature OFF
---
0.8 H
3.5 H
Armature ON
---
1.1 H
4.8 H
Coil inductance
(ref. value)
Pick-up voltage (max.)
70% of rated voltage max.
Dropout voltage (min.)
10% of rated voltage min.
Maximum coil voltage
160% of rated voltage at (23°C)
Power consumption
Approx. 0.9 W
24 VDC
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with a tolerance of ±10%.
2. Operating characteristics are measured at a coil temperature of 23°C.
3. Max. permissible voltage refers to the maximum value in a varying range of operating power voltage, not a continuous voltage.
■ Endurance
With Motor Load
Load conditions
Switching frequency
250 VAC:
Inrush current: 80 A, 0.3 s (cosφ= 0.7)
Break current: 20 A (cosφ = 0.9)
ON:1.5 s
OFF:1.5 s
Electrical endurance
200,000 operations
With Overload
Load conditions
Switching frequency
250 VAC:
Inrush current: 80 A (cosφ= 0.7)
Break current: 80 A (cosφ = 0.7)
ON:1.5 s
OFF:99 s
Electrical endurance
1,500 operations
With Inverter Load
Load conditions
Switching frequency
100 VAC;
Inrush current: 200 A (0−P)
Break current: 20 A
ON:3 s
OFF:5 s
Electrical endurance
30,000 operations
■ Characteristics
Contact resistance
100 mΩ max.
Operate time
20 ms max.
Release time
10 ms max.
Max. operating frequency
Mechanical: 18,000 operations/hr
Insulation resistance
1,000 MΩ min. (at 500 VDC)
Dielectric strength
4,500 VAC 50/60 Hz for 1 min between coil and contacts
1,000 VAC 50/60 Hz for 1 min between contacts of same polarity
Vibration resistance
Destruction: 10 to 55, 1.5-mm double amplitude
Malfunction: 10 to 55, 1.5-mm double amplitude
Shock resistance
Destruction: 1,000 m/s2
Malfunction: 200 m/s2
Service Life
Mechanical:
2,000,000 operations min. (at 18,000 operations/hr)
Motor load:
100,000 operations min. (ON/OFF: 1.5 s)
Inverter load: 30,000 operations min. (ON: 3 s, OFF: 5 s
Ambient temperature
Operating: −20°C to 60°C (with no icing)
Ambient humidity
Operating: 5% to 85%
Weight
Approx. 23 g
Note: The data shown above are initial values.
222
Power PCB Relay
G4A
Engineering Data
Electrical Service Life
Electrical Service Life (x103 operations)
Maximum Switching Capacity
Switching current (A)
AC resistive load
AC inductive load
cosφ = 0.4
5,000
3,000
1,000
700
500
300
100
70
250-VAC
resistive load
250-VAC
inductive load
cosφ = 0.4
50
Switching voltage (V)
Switching current (A)
Dimensions
Note: All units are in millimeters unless otherwise indicated; dimensions shown in parentheses are in inches.
G4A-1A-E
30.5 max.
(30.1)*
Mounting Holes
(Bottom View)
16 max.
(15.7)*
23.5 max.
(23.3)*
Four,1.8
+0.1
0
dia.
Terminal Arrangement
/Internal Connections
(Top View)
(Bottom View)
Tab Terminal
PCB Terminal
*Average value
Mounting Holes
(Bottom View)
30.5 max.
(30.1)*
G4A-1A-PE
Four, 1.8 +0.1
0 dia.
16 max.
(15.7)*
26.8 max.
(26.5)*
Terminal Arrangement
/Internal Connections
(Bottom View)
*Average value
Power PCB Relay
G4A
223
Precautions
Mounting
When mounting two or more relays side by side, provide a minimum space of 3 mm between relays.
Terminal Connection
The terminals fit FASTON receptacle 250 and are suitable for positive-lock mounting.
Do not apply excessive force on the terminals when mounting or dismounting the relay.
The following positive-lock connectors made by AMP are recommended.
Type
#250 terminals (width: 6.35 mm)
Receptacle terminals
AMP 170333-1 (170327-1)
AMP 170334-1 (170328-1)
AMP 170335-1 (170329-1)
Note: The numbers shown in parentheses are for air-feeding.
224
Power PCB Relay
G4A
Positive housing
AMP 172076-1 natural color
AMP 172076-4 yellow
AMP 172076-5 green
AMP 172076-6 blue
Omron Electronic Components, LLC
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(a) Outdoor use, use involving potential chemical contamination or electrical
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medical equipment, amusement machines, vehicles, safety equipment, and
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(d) Systems, machines, and equipment that could present a risk to life or property.
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SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM
AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE
PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE
WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
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any time based on improvements or other reasons. It is Seller’s practice to change part
numbers when published ratings or features are changed, or when significant
engineering changes are made. However, some specifications of the Product may be
changed without any notice.
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Power PCB Relay
G4A
Certain Precautions on Specifications and Use
1. Suitability for Use. Seller shall not be responsible for conformity with any standards, codes or regulations which apply to the combination of the Product in
Buyer's application or use of the Product. At Buyer's request, Seller will provide applicable third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself is not
sufficient for a complete determination of the suitability of the Product in combination with the end product, machine, system, or other application or use.
Buyer shall be solely responsible for determining appropriateness of the particular Product with respect to Buyer's application, product or system. Buyer
shall take application responsibility in all cases but the following is a nonexhaustive list of applications for which particular attention must be given:
(i) Outdoor use, uses involving potential chemical contamination or electrical
interference, or conditions or uses not described in this document.
(ii) Energy control systems, combustion systems, railroad systems, aviation
systems, medical equipment, amusement machines, vehicles, safety
equipment, and installations subject to separate industry or government
regulations.
(iii) Use in consumer products or any use in significant quantities.
(iv) Systems, machines and equipment that could present a risk to life or
property. Please know and observe all prohibitions of use applicable to this
product.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS
RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM
AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT
THE OMRON PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE
INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.
2. Programmable Products. Seller shall not be responsible for the user's programming of a programmable product, or any consequence thereof.
3. Performance Data. Performance data given in this publication is provided as
a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of Seller's test conditions, and the users must
correlate it to actual application requirements. Actual performance is subject to
Seller's Warranty and Limitations of Liability.
4. Change in Specifications. Product specifications and accessories may be
changed at any time based on improvements and other reasons. It is our practice to change part numbers when published ratings or features are changed,
or when significant construction changes are made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers may be assigned to fix or establish key specifications for
your application. Please consult with your Seller representative at any time to
confirm actual specifications of purchased Product.
5. Errors and Omissions. The information in this publication has been carefully
checked and is believed to be accurate; however, no responsibility is assumed
for clerical, typographical or proofreading errors, or omissions.
6. RoHS Compliance. Where indicated, our products currently comply, to the
best of our knowledge as of the date of this publication, with the requirements
of the European Union's Directive on the Restriction of certain Hazardous
Substances ("RoHS"), although the requirements of RoHS do not take effect
until July 2006. These requirements may be subject to change. Please consult
our website for current information.
Complete “Terms and Conditions of Sale” for product purchase and use are on Omron’s website
at http://www.components.omron.com – under the “About Us” tab, in the Legal Matters section.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
OMRON ON-LINE
OMRON ELECTRONIC
COMPONENTS LLC
55 E. Commerce Drive, Suite B
Schaumburg, IL 60173
Global - http://www.omron.com
USA - http://www.components.omron.com
847-882-2288
Cat. No. X301-E-1
Power PCB Relay
06/09
G4A
Specifications subject to change without notice
Printed in USA