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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
		4 poles	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)

Item	Rated current (mA)	Coil resistance (Ω)	Max. voltage (V)	Power consumption (mW)
Rated voltage	Rated current (mA)	Coil resistance (Ω)	Max. voltage (V)	Power consumption (mW)
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)

Item	Rated current (mA)	Coil resistance (Ω)	Max. voltage (V)	Power consumption (mW)
Rated voltage	Rated current (mA)	Coil resistance (Ω)	Max. voltage (V)	Power consumption (mW)
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

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

*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
Maximum operating frequency	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
Shock resistance	Malfunction	100 m/s²
Durability *7	Mechanical	10,000,000 operations min. (at approx. 36,000 operations/h)
Durability *7	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.)

Additional information

Weight	N/A
Model	G7SA-2A2B DC24, G7SA-3A1B DC24, G7SA-3A3B DC24, G7SA-4A2B DC24, G7SA-5A1B DC24

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Categories

G7SA – Relays with Forcibly Guided Contacts – Omron Safety Relays

Main unit

Relays with Forcibly Guided Contacts

Ratings

Safety Relay Unit

Coil (4 poles)

Coil (6 poles)

Contacts

Characteristics

Safety Relay Unit

Additional information