G7S-3A3B-DC24 [ETC]
;
ETC 
R
Plug-in Safety Relay
G7S
Safety Relay for Machine Control
Conforms to EN Standard
H Suitable for safety circuits in press
machinery, machine tools, and other
production machinery
H CE mark (conforms to prEN50205)
H Positive, force-guided contacts
H A minimum of 0.5 mm between contacts
even when one contact is welded
(prEN50205 Class A)
H DIN rail-mounting and panel-mounting
sockets are available
Note: Be sure to refer to the Precautions section.
Ordering Information
J SAFETY RELAYS
Number of contacts NO contacts NC contacts Contact form
Rated voltage (V) Part number
24 VDC
G7S-4A2B DC24
6 poles
4
3
2
3
4PST-NO + DPST-NC
3PST-NO + 3PST-NC
G7S-3A3B DC24
J ACCESSORIES
Description
Part number
P7S-14F
P7S-14A
P7S-14P
P7S-A10
P7S-B
Mounting sockets
DIN-rail mounting and screw mounting
Solder terminals
PCB terminals
Socket mounting plate
Relay removal tool
For solder terminal sockets, holds 10 sockets
Removes relay from sockets
50 cm (1.64 ft) length
1 m (3.28 ft) length
DIN rail mounting track
PFP-50N
PFP-100N
PFP-S
Spacer
End plate
PFP-M
G7S
G7S
Specifications
J RATINGS
Operation Coil
Rated voltage Rated current Coil resistance Minimum operate voltage Release voltage Max. voltage Power consumption
24 VDC 30 mA 800 Ω 80% max. (V) 10% (V) 110% (V) Approx. 0.8 W
Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of ±15%.
2. Performance characteristics are based on a coil temperature of 23°C
3. The maximum voltage is based on an ambient operating temperature of 23°C maximum.
Switching Section (Contact Ratings)
Load type
Resistive load (cos φ =1)
240 VAC: 3 A, 24 VDC: 3 A
250 VAC, 24 VDC
6 A
Inductive load (cos φ = 0.4, L/R = 7 ms)
Rated load
240 VAC: 3 A, 24 VDC: 1 A
Maximum switching voltage
Maximum switching current
Maximum switching capacity (reference value)
1,440 VA, 144 W
5 VDC, 10 mA
Min. permissible load
(See note.)
Contact material
Ag ) Au
Note: The above values are based on an operating frequency of 60 operations/min.
J CHARACTERISTICS
Contact resistance (See Note 2.)
Operate time (See Note 3.)
Release time (See Note 3.)
Maximum operating frequency
100 mΩ max.
50 ms max.
50 ms max.
Mechanical
Rated load
18,000 operations/hr
1,800 operations/hr
100 MΩ min. (at 500 VDC)
Insulation resistance
Dielectric strength
Vibration
2,500 VAC, 50/60 Hz for 1 min (1,500 VAC between contacts of same polarity)
10 to 55 Hz, 1.5-mm double amplitude
Mechanical
Electrical
Mechanical
Electrical
Mechanical
Electrical
Operating
Storage
10 to 55 Hz, 0.75-mm double amplitude
2
Shock
1,000 m/s (approx. 100G)
2
100 m/s (approx. 10G)
Life expectancy
Ambient temperature
10,000,000 operations min. (at approx. 18,000 operations/hr)
100,000 operations min. (at the rated load and approx. 1,800 operations/hr)
–10°C to 70°C (14°F to 158°F) no icing
–25°C to 70°C (-13°F to 158°F) no icing
35% to 85% RH
Relative humidity
Ambient storage humidity
Weight
35% to 85% RH
Approx. 65 g
Note: 1. The values given above are initial values.
2. Measurement conditions: 5 VDC, 10 mA, voltage drops.
3. Measurement conditions:
Rated voltage operation
Ambient operating temperature: 23°C (73.4°F)
Does not include bounce time.
2
G7S
G7S
J CHARACTERISTICS OF SAFETY RELAY SOCKET
Model
Continuous current
6 A
Dielectric strength
Insulation resistance
P7S-14j
2000 VAC for 1 min. between terminals
1000 MΩ min. (See note.)
Note: Measurement conditions: Measurement of the same points as for the dielectric strength at 500 VDC.
J APPROVED STANDARDS
VDE0435 (Electrical Relays); Approved by VDE
IEC255 (Electrical Relays); Approved by VDE
prEN50205 (Electrical Relays); Approved by VDE
UL508 (Industrial Control Device)
CSA22.2 No.14 (Industrial Control Device)
Engineering Data
J ELECTRICAL LIFE EXPECTANCY
(240 VAC; cosφ=0.4, cosφ=1)
100
10
G7S
G9S
1
0
1
2
3
4
5
6
I (Current)
Switching current (A)
Dimensions
Unit: mm (inch)
J SAFETY RELAYS
G7S-4A2B
G7S-3A3B
Terminal Installation/Internal
Connection Diagram
(Bottom View)
62 max.
(2.44)
22.5 max.
(0.89)
G7S-4A2B
24 VDC
37 max.
(1.46)
5 min.
24 VDC
3
G7S
G7S
J SAFETY RELAY SOCKETS
P7S-14F DIN Rail-mounting Socket or Screw Mounting
7.5
4
Terminal Installation/Internal
Connection Diagram
(Top View)
7 x 4 = 28
40 max.
31.3
47 max.
(1.85)
Cross-section of
Mounting Holes
90.5 max.
(3.56)
40 max.
(1.57)
With Safety Relay Mounted
69 max.
(2.72)
47 max.
P7S-14A Panel-mounting Socket
(Solder Terminals)
61.5 max.
(2.42)
Terminal Installation/Internal
23 max.
(0.91)
Connection Diagram
(Bottom View)
G7S-4A2B
33 max.
(1.30)
Cross-section of
Mounting Holes
(0.83)
G7S-3A3B
With Safety Relay Mounted
(2.24)
39 max.
(1.54)
4
G7S
G7S
P7S-14P PCB-mounting Socket
(PCB Terminals)
61.5 max.
(2.42)
Terminal Installation/Internal
Connection Diagram
(Bottom View)
23 max.
(0.91)
G7S-4A2B
Two, 6.5 dia x 7.9 deep
Cross-section of
Mounting Holes
29 max.
(1.14)
G7S-3A3B
23 max.
With Safety Relay Mounted
Two,
3.6 dia.
Fourteen, 1.8 dia.
28 max.
(1.10)
15.4 (0.61)
J SOCKET MOUNTING PLATE
P7S-A10 (Special Mounting Plate for P7S-14A)
261 max.
(10.28)
Four, C0.5
81 max.
(3.19)
1.6 (0.06)
J RELAY REMOVAL TOOL
P7S-B
59.2
(2.33)
19.3
35
(1.38)
7
15
(0.59)
5
G7S
G7S
Precautions
Safety Relays
A Safety Relay is a relay with which a safety circuit can be
J POSITIVE GUIDED CONTACTS
When NO contacts are welded, the coil will be non-energized so
all NC contacts will maintain a distance between the contacts of
0.5 mm minimum. Likewise if NC contacts are welded, the coil
will be energized so all contacts will maintain a distance between
each other of 0.5 mm minimum.
configured. For common precautions when using and handling
relays, consult Omron.
Contacts
The coil terminals have polarity (positive and negative).Operation
is not possible if these are connected in reverse.
! Caution
Do not touch the terminal area of the Relays or the socket ter-
minal area (charged area) while power is ON. Electric shock
will result.
NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4.
R
OMRON ELECTRONICS, INC.
One East Commerce Drive
Schaumburg, IL 60173
OMRON CANADA, INC.
885 Milner Avenue
Scarborough, Ontario M1B 5V8
1-800-55-OMRON
416-286-6465
Cat. No. CEDSAX3
10/99
Specifications subject to change without notice.
Printed in U.S.A.
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