CSM_G4Q_DS_E_3_1
1
Ratchet Relay
G4Q
Unique Ratchet Mechanism Assures Positive
Alternate Transfer/Switching Operation
Each contact in the double-pole contact mechanism performs
alternate make-brake operation at each pulse input and is thus
ideal for alternate operation or transfer/switching operation of a
motor.
Positive operation is assured due to the unique ratchet mecha-
nism.
Satisfies dielectric strength of 2,000 VAC.
Low power consumption.
(AC: approx. 6.4 VA; DC: approx. 3.9 W)
Ordering Information
Open Models Plug-in Models
Model Number Legend
1. Contact Form
2: DPDT
2. Contact Type
1: Single
3. Enclosure Construction
1: No casing
2: Casing
4. Terminal Shape
A: Solder
S: Plug-in
Item DPDT
Model Rated voltage
Basic model G4Q-211A 24 VAC
50 VAC
100/(110) VAC
200/(220) VAC
12 VDC
24 VDC
100 VDC
Item DPDT
Model Rated voltage
Basic model G4Q-212S 12 VAC
24 VAC
50 VAC
100/(110) VAC
200/(220) VAC
12 VDC
24 VDC
100 VDC
200 VDC
Rated coil voltage
Note: When ordering, add the rated coil voltage (listed in Specifications) to the model number.
Example: G4Q-211A, 24 VAC
G4Q-@@@@
1 2 3 4
G4Q
2
Accessories (Order Separately)
Specifications
Coil Ratings
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of +15%/–20% for AC rated current and
±15% for DC coil resistance.
2. The AC coil resistance values are for reference only.
3. Performance characteristic data is measured at a coil temperature of 23°C.
4. The maximum voltage is one that is applicable instantaneously to the Relay coil at an ambient temperature of 23°C and not continuously.
5. The AC power consumption is measured at 60 Hz.
Contact Ratings
DIN track/Front-connecting Socket Back-connecting Socket
Screw terminal Solder terminal
8PFA1 PL08
Item Current (mA) Resistance () Must operate Must release Max. voltage Power consumption
Rated voltage (V) 50 Hz 60 Hz % of rated voltage Initial Rated
AC 12 614 531 2.24 80 % max. 10 % min. 110 % max. Approx.
13.5 VA
Approx.
6.4 VA
24 307 266 8.7
50 148 128 42.7
100/
(110)
74 64/73.5 160
200/
(220)
37 32/36.8 671
Item Current (mA) Resistance () Must operate Must release Max. voltage Power consumption
Rated voltage (V) 50 Hz 60 Hz % of rated voltage
DC 12 320 37.5 5 % min. Approx. 3.9 W
24 155 155
100 39 2,580
200 19.2 10,400
Load Resistive load
(cosφ = 1)
Inductive load
(cosφ = 0.4)
(L/R = 7 ms)
Contact mechanism Single
Contact material Silver alloy
Rated load 5 A at 220 VAC, 5 A at 24 VDC 3 A at 220 VAC, 4 A at 24 VDC
Rated carry current 5 A
Max. switching voltage 250 VAC, 250 VDC
Max. switching current 5 A
G4Q
3
Characteristics
Note: 1. The data shown above are initial values.
2. The contact resistance was measured with 0.1 A at 5 VDC using the voltage drop method.
3. The operate time was measured with the rated voltage imposed with any contact bounce ignored at an ambient temperature of 23°C.
4. The insulation resistance was measured with a 500-VDC megger applied to the same places as those used for checking the dielectric
strength.
5. The electrical endurance was measured at an ambient temperature of 23°C.
6. This value was measured at a switching frequency of 60 operations per minute. The value in parentheses is for the cased model.
Engineering Data
Contact resistance (See note 2.) 50 m max.
Operate time (See note 3.) 60 ms max.
Max. operating frequency Mechanical: 1,200 operations/hr
Electrical: 1,200 operations/hr (under rated load)
Insulation resistance (See note 4.) 100 M min. (at 500 VDC)
Dielectric strength 2,000 VAC, 50/60 Hz for 1 min between coil and contact (1,000 VAC, 50/60 Hz for 1 min between con-
tacts of same polarity) (2,000 VAC between contacts of different polarities)
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, 0.5 mm single amplitude (1.0 mm double amplitude)
Shock resistance Destruction: 500 m/s2
Malfunction: 100 m/s2
Endurance Mechanical: 5,000,000 operations min. (at operating frequency of 1,200 operations/hr)
Electrical: 500,000 operations min. (under rated load and at operating frequency of
1,200 operations/hr) (See note 5.)
Error rate (See note 6.) 1 A at 5 VDC (0.1 A at 5 VDC)
Ambient temperature Operating: –10°C to 55°C (with no icing or no condensation)
Ambient humidity Operating: 5% to 85%
Weight Open model: Approx. 240 g; cased model: Approx. 340 g
Maximum Switching Power
DC resistive load AC resistive load
AC inductive load
(cosφ = 0.4)
DC inductive load
L/R = 7 ms
Switching current (A)
Switching voltage (V)
220 VAC resistive load
24 VDC resistive load
24VDC inductive load
L/R = 7 ms
220 VAC inductive load
(cosφ = 0.4)
Electrical Endurance
Switching current (A)
Endurance (x10 operations)
3
100
300
500
700
1,000
3,000
5,000
7,000
10,000
70
50
30
G4Q
4
Operation
Note: When a pulse for application to the coil is used, such a pulse
should have a width of 100 ms or more. If a pulse is applied with
a width less than the operate time, the cam may fail to rotate
fully.
Dimensions
Note: All units are in millimeters unless otherwise indicated.
Ambient Temperature vs.
Coil Temperature Rise
100 VAC 50 Hz
Coil temperature rise ( C)
°
Contact carry current: 5 A
Contact with no carry current
Ambient temperature (°C)
24 VDC
Coil temperature rise ( C)
Contact carry current: 5 A
Contact with no carry current
Ambient temperature (°C)
Malfunctioning Shock
Not
energized
Energized
Unit: m/s2
Number of samples: 5
Measurement conditions:
Impose a shock of
100 m/s2 in the ±X, ±Y, and
±Z directions three times
each with the Relay
energized and not
energized to check the
shock values that cause
the Relay to malfunction.
Shock direction
°
100 ms min.
Contact terminal
(NO) (13, 86)
Contact terminal
(NC) (14, 85)
Coil terminal
Operation Timing Chart
66.5 max. 58
Four, 3.5-dia.
mounting holes 25
56 max. 65 max.
Four, M3 mounting
screw holes or four
3.5-dia. holes
Open Model
G4Q-211A
Terminal Arrangement/
Internal Connections
Mounting Holes
58±0.2
25±0.2
G4Q
5
Safety Precautions
Refer to Safety Precautions for All Relays.
Surface Mounting Socket
Be sure to provide a mounting space according to the width of the
Relay. The width of the Relay is 63.5 mm and the width of the Socket
is 51 mm.
Mounting
Mount the Relay so that the coil faces upward and the cam faces
downwards with the mounting plate secured vertically. Do not
change the cam angle.
Make sure that Relay terminals are free of flux or any other foreign
substance before soldering the Relay terminals.
92.5
max. 71.5
max.
30.5
63.5 max. 80 max.
Plug-in Terminal Model
G4Q-212S
Terminal Arrangement/
Internal Connections
(Bottom view)
3.5
7
102 100 80
Relay Mounting Height with Socket
With Front-connecting
Socket
With Back-connecting
Socket
G4Q-
212S G4Q-
212S
8PFA1 PL08
Coil
Cam
In the interest of product improvement, specifications are subject to change without notice.
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
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comments.
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from date of sale by OMRON.
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application or use of the products.
At the customer's request, OMRON will provide applicable third party certification documents identifying ratings and limitations of use that apply to the
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machine, system, or other application or use.
The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible
uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:
Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.
Nuclear 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.
Systems, machines, and equipment that could present a risk to life or property.
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Disclaimers
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 model numbers when published ratings or features are changed, or when significant construction changes are made.
However, some specifications of the products may be changed without any notice. When in doubt, special model numbers may be assigned to fix or
establish key specifications for your application on your request. Please consult with your OMRON representative at any time to confirm actual
specifications of purchased products.
DIMENSIONS AND WEIGHTS
Dimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.
PERFORMANCE DATA
Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the
result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON
Warranty and Limitations of Liability.
ERRORS AND OMISSIONS
The information in this document has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical,
typographical, or proofreading errors, or omissions.
2010.8
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2010 All Right Reserved.