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G7SA – Relays with Forcibly Guided Contacts – Omron Safety Relays

USD $ 14.03USD $ 16.33

SKU N/A Category

Main unit

Relays with Forcibly Guided Contacts

Specify the coil rated voltage when ordering.

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Terminal type Sealing Poles Contact configuration Coil rated voltage Model
PCB terminals Flux-tight 4 poles 3PST-NO, SPST-NC 12, 18, 21, 24, 48, 110 VDC G7SA-3A1B
DPST-NO, DPST-NC 12, 18, 21, 24, 48, 110 VDC G7SA-2A2B
6 poles 5PST-NO, SPST-NC 12, 18, 21, 24, 48, 110 VDC G7SA-5A1B
4PST-NO, DPST-NC 12, 18, 21, 24, 48, 110 VDC G7SA-4A2B
3PST-NO, 3PST-NC 12, 18, 21, 24, 48, 110 VDC G7SA-3A3B

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Ratings

Safety Relay Unit

Coil (4 poles)

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Item Rated current (mA) Coil resistance (Ω) Max. voltage (V) Power consumption (mW)
Rated voltage
12 VDC 30 400 110% Approx. 360
18 VDC 20 900
21 VDC 17.1 1,225
24 VDC 15 1,600
48 VDC 7.5 6,400
110 VDC 3.8 28,810 Approx. 420

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Coil (6 poles)

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Item Rated current (mA) Coil resistance (Ω) Max. voltage (V) Power consumption (mW)
Rated voltage
12 VDC 41.7 288 110% Approx. 500
18 VDC 27.8 648
21 VDC 23.8 882
24 VDC 20.8 1,152
48 VDC 10.4 4,606
110 VDC 5.3 20,862 Approx. 580

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Note: 1. The rated current and coil resistance are measured at a coil temperature of 23°C with tolerances of ±15%.
2. The maximum voltage is based on an ambient operating temperature of 23°C maximum.

Contacts

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Load Resistive load
Rated load 6 A at 250 VAC, 6 A at 30 VDC
Rated carry current 6 A
Max. switching voltage 250 VAC, 125 VDC
Max. switching current 6 A
Contact materials Au plating + Ag alloy

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Characteristics

Safety Relay Unit

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Contact resistance *1 100 mΩ max.
Operating time *2 20 ms max.
Response time *3 10 ms max.
Release time *2 20 ms max.
Must operate voltage 75% max.
Must release voltage 10% min.
Maximum
operating
frequency
Mechanical 36,000 operations/h
Rated load 1,800 operations/h
Insulation resistance *4 1,000 MΩ min.
Dielectric
Strength
*5 *6
Between coil
and contacts
4,000 VAC, 50/60 Hz for 1 min.
Between
contacts of
different olarity
4,000 VAC, 50/60 Hz for 1 min. (except for followings)
4 poles (for poles 3-4 in 4-pole Relays),
6 poles (for poles 3-5, 4-6, and 5-6 in 6-pole Relays): 2,500 VAC, 50/60 Hz for 1 min.
Between
contacts of the
same polarity
1,500 VAC, 50/60 Hz for 1 min.
Vibration resistance 10 to 55 to 10 Hz, 0.75-mm single amplitude (1.5-mm double amplitude)
Shock
resistance
Destruction 1,000 m/s2
Malfunction 100 m/s2
Durability
*7
Mechanical 10,000,000 operations min. (at approx. 36,000 operations/h)
Electrical 100,000 operations min. (at the rated load)
Inductive load switching
capability *8
(IEC60947-5-1)
AC15 240 VAC, 2 A
DC13 24 VDC, 1 A/48 VDC, 0.5 A/110 VDC, 0.2 A
Failure rate (P level)
(reference value *9)
5 VDC, 1 mA
Ambient operating
temperature *10
12 to 48 VDC: -40 to 85°C (with no icing or condensation)
110 VDC: -40 to 60°C (with no icing or condensation)
Ambient operating humidity 5% to 85%
Weight 4 poles: Approx. 22 g
6 poles: Approx. 25 g

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Note: 1. The above values are initial values.
2. Performance characteristics are based on coil temparature of 23°C.
*1. The contact resistance was measured with 1 A at 5 VDC using the voltage-drop method.
*2. These times were measured at the rated voltage and an ambient temperature of 23°C. Contact bounce time is not
included.
*3. The response time is the time it takes for the normally open contacts to open after the coil voltage is turned OFF.
Contact bounce time is included. Measurement conditions: Rated voltage operation, Ambient temperature: 23°C
*4. The insulation resistance was measured with a 500-VDC megohmmeter at the same locations as the dielectric
strength was measured.
*5. Pole 3 refers to terminals 31-32 or 33-34, pole 4 refers to terminals 43-44, pole 5 refers to terminals 53-54, and
pole 6 refers to terminals 63-64.
*6. When using a P7SA Socket, the dielectric strength between coil contacts/different poles is 2,500 VAC, 50/60 Hz for
1 min. When using Push-In Plus terminal sockets (P7SA-[]F-ND-PU), the dielectric strength between coil contacts
as well as between different poles is 4,000 VAC, 50/60 Hz for 1 min.
*7. The durability is for an ambient temperature of 15 to 35°C and an ambient humidity of 25% to 75%. For the durability
performance to the load, refer to the Durability Curve.
*8. AC15: cosφ = 0.3, DC13: L/R = 48-ms.
*9. The failure rate is based on an operating frequency of 300 operations/min.
*10. 12 to 48 VDC:
When operating between 70 and 85°C, reduce the rated carry current of 6 A by 0.1 A for each degree above 70°C.
  (See Fig. 1.)
       110 VDC:
When operating between 40 and 60°C, reduce the rated carry current of 6 A by 0.27 A for each degree above 40°C.
  (See Fig. 1.)

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