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132
Safety Relay G7SA
Slim Safety Relays Conforming to EN
Standards
The forcibly guided contact in the G7SA assures
safe operation (EN50205 Class A, approved by
VDE.)
Ideal for use in safety circuits in press machinery,
machine tools, and other production machinery.
Four-pole and six-pole Relays are available.
The Relay’s terminal arrangement simplifies PWB
pattern design.
Reinforced
insulation between inputs and outputs.
Reinforced insulation between some poles.
UL, CSA approval.
CE marking.
Note: Be
sure to refer to the
Precautions
on page
131.
X
VDE
RC
Ordering Information
Safety Relays
Type Sealing Poles Contacts Rated
voltage
Model
Standard Flux-tight
4 poles
3PST-NO, SPST-NC
24 VDC
G7SA-3A1B
G7SA-2A2B
6 poles
5PST-NO, SPST-NC G7SA-5A1B
4PST-NO, DPST-NC G7SA-4A2B
3PST-NO, 3PST-NC G7SA-3A3B
Safety Relay Sockets
Type LED
indicator
Poles Rated
voltage
Model
Track-mounting T
rack mounting and screw mounting
6 poles
P7SA-14F
Yes
4 poles
24 VDC
P7SA-10F-ND
P7SA-14F-ND
Back-mounting
PCB terminals
No
4 poles
---
P7SA-10P
6 poles
P7SA-14P
Model Number Legend
G7SA-jAjB
12
1. NO
Contact Poles
2: DPST-NO
3: 3PST-NO
4: 4PST-NO
5: 5PST-NO
2. NC Contact Poles
1: SPST-NC
2: DPST-NC
3: 3PST-NC
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G7SA
G7SA
133
Specifications
Ratings
Coil
Rated
voltage
Rated
current
Coil resistance
Must-operate
voltage
Must-release
voltage
Max.
voltage
Power consumption
24 VDC
4 poles: 15 mA
6 poles: 20.8 mA
4 poles: 1,600
Ω
6 poles: 1,152
Ω
75% max. (V)
10% min. (V)
1
10% (V)
4 poles:
Approx. 360 mW
6 poles: Approx. 500 mW
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
value given for the maximum voltage is for voltages applied instantaneously to the Relay coil (at an ambient temperature of
23°C)
and not continuously
.
Contacts
Load
Resistive load (cos φ =1)
Rated load
6 A at 250 V
AC, 6 A at 30 VDC
Rated carry current
6 A
Max. switching voltage
250 V
AC, 125 VDC
Max. switching current
6 A
Max. switching capacity (reference value)
1,500 V
A, 180 W
Characteristics
Safety Relay Sockets
Model Continuous
current
Dielectric strength
Insulation resistance
P7SA-14j
6 A (see note 1)
2,500 V
AC for 1 min. between poles
100 MΩ min. (see note 2)
Note: 1.
If the P7SA-1jF is used between 55 and 85°C, reduce the continuous current (from 6A) by 0.1 A for every degree.
2.
Measurement conditions: Measurement of the same points as for the dielectric strength at 500 VDC.
3.
When using the P7SA-1jF-ND at 24 VDC, use at an ambient operating temperature from –25 to 55
°C.
Safety Relays
Contact
resistance
100 mΩ max. (The contact resistance was measured with 1 A at 5 VDC using the
voltage-drop method.)
Operating time (see note 2)
20 ms max.
Response time (see note 2) 10 ms max. (The response time is the time it takes for the normally open contacts to open
after the coil voltage is turned OFF
.)
Release time (see note 2)
20 ms max.
Maximum operating
Mechanical
36,000 operations/hr
frequency
Rated load
1,800 operations/hr
Insulation resistance
100 MΩ min. (at 500 VDC)
(The insulation resistance was measured with a 500-VDC megger at the same places that the
dielectric strength was measured.)
Dielectric strength (see notes 3, 4)
Between coil contacts/dif
ferent poles: 4,000 V
AC, 50/60 Hz for 1 min
(2,500 V
AC between poles 3–4 in 4-pole Relays or poles 3–5, 4–6, and 5–6 in 6-pole Relays.)
Between contacts of same polarity: 1,500 VAC, 50/60 Hz for 1 min
V
ibration resistance
10 to 55 Hz, 1.5-mm double amplitude
Shock resistance
Destruction
1,000 m/s
2
Malfunction
100 m/s
2
Life expectancy
Mechanical
10,000,000 operations min. (at approx. 36,000 operations/hr)
Electrical
100,000 operations min. (at the rated load and approx. 1,800 operations/hr)
Min. permissible load (see note 5)
(reference value)
5 VDC, 1 mA
Ambient temperature (see note 6)
Operating: –40°
C to 85°C (with no icing or condensation)
Storage: –40°
C to 85°C (with no icing or condensation)
Ambient humidity
Operating:
35% to 85%
Storage:
35% to 85%
Weight
4 poles: Approx. 22 g
6 poles: Approx. 25 g
Approved standards
EN61810-1 (IEC61810-1), EN50205, UL508, CSA22.2 No. 14
Note: 1.
The values listed above are initial values.