Omron G7S-4A2B, G7S-3A3B Datasheet

1

G7S Safety Relay G7S

Safety Relay conforming to EN standard

Conforms to prEN50205.
A minimum of 0.5 mm between contacts even when

one contact is welded. (prEN50205 Class A)
Forcibly guided contacts.
The G7S contributes to the protection of machinery

when used as part of an interlocking circuit.
Most suitable for safety circuits in press machinery,

machine tools, and other production machinery.
CE mark (EC Low-voltage Directive 73/23/EEC)
Track-mounting and Back-mounting Sockets are

available.

Note: Be sure to refer to the Precautions on page 7.

Ordering Information

Model Number Legend

G7S-jAjB

12

1. NO Contact Poles

4: 4PST-NO
3: 3PST-NO

2. NC Contact Poles

2: DPST-NC
3: 3PST-NC

Safety Relays

Type

Poles Contact form Rated voltage (V) Model

Standard 6 poles

4PST-NO, DPST-NC

24 VDC

G7S-4A2B

3PST-NO, 3PST-NC G7S-3A3B

Accessories

Safety Relay Sockets

Type

Model

Track-mounting Common for track mounting

and screw mounting

P7S-14F

Back-mounting

Solder terminals P7S-14A
PCB terminals P7S-14P

Socket Mounting Plate

Applicable Socket

Quantity Model

P7S-14A 10 P7S-A10

Relay Removal Tool

Applicable Sockets

Model

P7S-14F
P7S-14A
P7S-14P

P7S-B

G7S

G7S

2

Specifications

Ratings

Operation Coil

Rated voltage Rated current Coil resistance Must operate

voltage

Must release

voltage

Max. voltage Power

consumption

24 VDC 30 mA 800 Ω 80% max. (V) 10% min. (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 Resistive load (cos φ =1) Inductive load (cos φ = 0.4, L/R = 7 ms)
Rated load 240 VAC: 3 A, 24 VDC: 3 A 240 VAC: 3 A, 24 VDC: 1 A
Rated carry current 6 A
Maximum switching voltage 250 VAC, 24 VDC
Maximum switching current 6 A
Maximum switching capacity (reference

value)

1,440 VA, 144 W

Min. permissible load
(See note.)

5 VDC, 10 mA

Contact material Ag ) Au

Note: The above values are based on an operating frequency of 60 operations/min.

Characteristics

Contact resistance (See note 2.) 100 mΩ max.
Operate time (See note 3.) 50 ms max.
Release time (See note 3.) 50 ms max.
Maximum operating

Mechanical 18,000 operations/hr

frequency

Rated load 1,800 operations/hr
Insulation resistance 100 MΩ min. (at 500 VDC)
Dielectric strength 2,500 VAC, 50/60 Hz for 1 min (1,500 VAC between contacts of same polarity)
Vibration

Destruction 10 to 55 Hz, 1.5-mm double amplitude

Malfunction 10 to 55 Hz, 0.75-mm double amplitude
Shock

Destruction 1,000 m/s2 (approx. 100G)

Malfunction 100 m/s2 (approx. 10G)
Life expectancy

Mechanical 10,000,000 operations min. (at approx. 18,000 operations/hr)

Electrical 100,000 operations min. (at the rated load and approx. 1,800 operations/hr)
Ambient operating temperature –10°C to 70°C (no icing)
Ambient operating humidity 35% to 85% RH
Ambient storage temperature –25°C to 70°C (no icing)
Ambient storage humidity 35% to 85% RH
Weight 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
Does not include bounce time.

Characteristics of Safety Relay Socket

Model Continuous current Dielectric strength Insulation resistance

P7S-14j

6 A 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.

G7S

G7S

3

Approved Standards

VDE0435 (Electrical Relays); Approved by VDE
IEC255 (Electrical Relays); Approved by VDE
prEN50205 (Electrical Relays); Approved by VDE
UL508 (Industrial Control Device); Pending
CSA22.2 No.14 (Industrial Control Device); Pending

Engineering Data

100

Life expectancy (x10 operations)

10

1

0

123456

G7S

G9S

Life Expectancy (240 VAC; cosφ=0.4, cosφ=1)

Switching current (A)

I (Current)

4

Life Expectancy (AC15, DC13 IEC947-5-1/Table 4)

6,050 operations min. (AC15, 240 VAC, 3 A, cosφ=0.3)
6,050 operations min. (DC13, 24 VDC, 1 A, L/R 100 ms)
VDE approved.

G7S

G7S

4

Dimensions

Note: All units are in millimeters unless otherwise indicated.

Safety Relays

G7S-4A2B
G7S-3A3B

Terminal Installation/Internal
Connection Diagram
(Bottom View)
G7S-4A2B

Cross-section of
Mounting Holes

G7S-3A3B

62 max.

22.5 max.

37 max.

5 min.

24 VDC

24 VDC

Fourteen,

1.8 dia.

Safety Relay Sockets

P7S-14F Track-mounting Socket

Terminal Installation/Internal
Connection Diagram
(Top View)

40 max.

90.5 max.

69 max.

47 max.

40 max.

47 max.

Cross-section of
Mounting Holes

With Safety Relay Mounted

7.5

4

31.3

7 x 4 = 28

G7S

G7S

5

P7S-14A Back-mounting Socket
(Solder Terminals)

61.5 max.

23 max.

33 max.

39 max.

Terminal Installation/Internal
Connection Diagram
(Bottom View)
G7S-4A2B

G7S-3A3B

With Safety Relay Mounted

Cross-section of
Mounting Holes

P7S-14P Back-mounting Socket
(PCB Terminals)

Terminal Installation/Internal
Connection Diagram
(Bottom View)
G7S-4A2B

Cross-section of
Mounting Holes

G7S-3A3B

23 max.

61.5 max.

23 max.

29 max.

With Safety Relay Mounted

28 max.

Two, 6.5 dia x 7.9 deep

Fourteen, 1.8 dia.

Two,

3.6 dia.

G7S

G7S

6

Socket Mounting Plate

P7S-A10 (Special Mounting Plate for P7S-14A)

261 max.

81 max.

Four, C0.5

Relay Removal Tool

P7S-B

G7S

G7S

7

Precautions

Forcibly 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.

Application

Caution

Do not touch the terminal area of the Relays or the socket ter­minal area (charged area) while power is ON. Electric shock
will result.

Safety Relays

A Safety Relay is a Relay with which a safety circuit can be config­ured. For common precautions when using and handling Relays, re­fer to OMRON’s Relay Catalog.

Contacts

The coil terminals have polarity (positive and negative).Operation is
not possible if these are connected in reverse.

!

G7S

G7S

8

OMRON Corporation

Control Components Division H.Q.
28th Fl., Crystal Tower Bldg.
1-2-27, Shiromi, Chuo-ku,
Osaka 540 Japan
Phone: [phone] Fax: [phone]

ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.

To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.

Cat. No. J107-E1-2 In the interest of product improvement, specifications are subject to change without notice.

Printed in Japan
0897-1M (1296) a