Ratchet Relay
G4Q
CSM_G4Q_DS_E_3_1
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
Item
Model
Basic model
G4Q-211A
DPDT
Rated voltage
24 VAC
50 VAC
100/(110) VAC
200/(220) VAC
12 VDC
24 VDC
100 VDC
Basic model
Plug-in Models
Item
Model
G4Q-212S
DPDT
Rated voltage
12 VAC
24 VAC
50 VAC
100/(110) VAC
200/(220) VAC
12 VDC
24 VDC
100 VDC
200 VDC
Note:
When
ordering, add the rated coil
voltage
(listed in
Specifications)
to the model number.
Example: G4Q-211A, 24
VAC
Rated coil
voltage
Model Number Legend
G4Q-@@@@
1
2 3
4
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
1
G4Q
■
Accessories (Order Separately)
DIN track/Front-connecting Socket
Screw terminal
8PFA1
PL08
Back-connecting Socket
Solder terminal
Specifications
■
Coil Ratings
Item
Rated voltage (V)
AC
12
24
50
100/
(110)
200/
(220)
Item
Rated voltage (V)
DC
12
24
100
200
Current (mA)
50 Hz
614
307
148
74
37
60 Hz
531
266
128
64/73.5
32/36.8
2.24
8.7
42.7
160
671
80 % max.
Resistance (Ω) Must operate
Must release
% of rated voltage
10 % min.
110 % max.
Max. voltage
Power consumption
Initial
Approx.
13.5 VA
Rated
Approx.
6.4 VA
Current (mA)
50 Hz
320
155
39
19.2
60 Hz
Resistance (Ω) Must operate
37.5
155
2,580
10,400
5 % min.
Must release
% of rated voltage
Max. voltage
Power consumption
Approx. 3.9 W
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
Load
Resistive load
(cosφ = 1)
Single
Silver alloy
5 A at 220 VAC, 5 A at 24 VDC
5A
250 VAC, 250 VDC
5A
3 A at 220 VAC, 4 A at 24 VDC
Inductive load
(cosφ = 0.4)
(L/R = 7 ms)
Contact mechanism
Contact material
Rated load
Rated carry current
Max. switching voltage
Max. switching current
2
G4Q
■
Characteristics
Contact resistance (See note 2.)
Operate time (See note 3.)
Max. operating frequency
Insulation resistance (See note 4.)
Dielectric strength
Vibration resistance
Shock resistance
Endurance
50 mΩ max.
60 ms max.
Mechanical:
Electrical:
1,200 operations/hr
1,200 operations/hr (under rated load)
100 MΩ min. (at 500 VDC)
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)
Destruction:
Malfunction:
Destruction:
Malfunction:
Mechanical:
Electrical:
10 to 55 to 10 Hz, 0.75 mm single amplitude (1.5 mm double amplitude)
10 to 55 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)
500 m/s
2
100 m/s
2
5,000,000 operations min. (at operating frequency of 1,200 operations/hr)
500,000 operations min. (under rated load and at operating frequency of
1,200 operations/hr) (See note 5.)
–10°C to 55°C (with no icing or no condensation)
5% to 85%
Approx. 240 g; cased model: Approx. 340 g
Error rate (See note 6.)
Ambient temperature
Ambient humidity
Weight
Note: 1.
2.
3.
4.
1 A at 5 VDC (0.1 A at 5 VDC)
Operating:
Operating:
Open model:
The data shown above are initial values.
The contact resistance was measured with 0.1 A at 5 VDC using the voltage drop method.
The operate time was measured with the rated voltage imposed with any contact bounce ignored at an ambient temperature of 23°C.
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
Maximum Switching Power
DC resistive load
AC resistive load
Electrical Endurance
Endurance (x10
3
operations)
10,000
7,000
5,000
3,000
220 VAC resistive load
24 VDC resistive load
24VDC inductive load
L/R = 7 ms
Switching current (A)
AC inductive load
(cosφ = 0.4)
1,000
700
500
300
100
70
50
30
DC inductive load
L/R = 7 ms
220 VAC inductive load
(cosφ = 0.4)
Switching voltage (V)
Switching current (A)
3
G4Q
Ambient Temperature vs.
Coil Temperature Rise
100 VAC 50 Hz
Coil temperature rise (
°
C)
Coil temperature rise (
°
C)
Malfunctioning Shock
24 VDC
Contact carry current: 5 A
Contact carry current: 5 A
Contact with no carry current
Contact with no carry current
Not
energized
Energized
Ambient temperature (°C)
Ambient temperature (°C)
Shock direction
Unit: m/s
2
Number of samples: 5
Measurement conditions:
Impose a shock of
100 m/s
2
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.
Operation
Operation Timing Chart
100 ms min.
Coil terminal
Contact terminal
(NO) (1−3, 8−6)
Contact terminal
(NC) (1−4, 8−5)
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.
Open Model
G4Q-211A
Terminal Arrangement/
Internal Connections
Mounting Holes
66.5 max. 58
58±0.2
Four, 3.5-dia.
mounting holes
25
56 max.
25±0.2
65 max.
Four, M3 mounting
screw holes or four
3.5-dia. holes
4
G4Q
Plug-in Terminal Model
G4Q-212S
3.5
Terminal Arrangement/
Internal Connections
(Bottom view)
92.5
max.
71.5
max.
30.5
63.5 max.
7
80 max.
Relay Mounting Height with Socket
With Front-connecting
Socket
With Back-connecting
Socket
102
G4Q-
212S
100
80
G4Q-
212S
8PFA1
PL08
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.
Coil
Cam
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
In the interest of product improvement, specifications are subject to change without notice.
5
RF/Wirelessly
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