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G5NB
PCB Power Relay
A Miniature Relay with 1-pole
3A/5A Switching Capability and
10 kV Impulse Withstand Voltage
• Highly efficient magnetic circuit for high sensitivity (200 mW).
• Small, yet provides 10-kV impulse withstand voltage (between coil
and contacts).
• Standard model conforms to UL/CSA/VDE standards.
• Satisfies EN61010 reinforced insulation requirements.
• IEC/EN 60335-1 conformed. (-HA Model)
■Model Number Legend ■Application Examples
• Water heaters
• Refrigerators
• Air conditioners
• Home appliances
• Small electric appliances
■Ordering Information
RoHS Compliant
G5NB-@@@-@-@-@
—— — — — —
123 4 5 6
4. Classification
None : Standard
E : High-capacity
1. Number of Poles
1: 1-pole
2. Contact Form
A: SPST-NO (1a)
3. Enclosure rating
None:Flux protection
4 : Sealed
5. Market Code
None:General purpose
HA : Home Appliance according
to IEC/EN60335-1
6. Packing
None:Tray Packing
SP : Tube packing
Terminal Shape Market Code Classification Contact form Enclosure rating Model Rated coil voltage Minimum packing unit
PCB terminals
General
purpose
Standard
SPST-NO (1a)
Flux protection G5NB-1A (-SP) 5VDC
12VDC
18VDC
24VDC
100 pcs/Tray
(50 pcs/tube)
Sealed G5NB-1A4 (-SP)
High-capacity
Flux protection G5NB-1A-E (-SP)
Sealed G5NB-1A4-E (-SP)
Home
Appliance Flux protection G5NB-1A-E-HA (-SP) 12VDC
24VDC
Note. When ordering, add the rated coil voltage to the model number.
Example: G5NB-1A DC5
However, the notation of the coil voltage on the product case as well as on the packing will be marked as @@VDC.
Rated coil voltage
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■Ratings
●Coil
Note 1. The rated current and coil resistance are measured at a coil temperature of 23°C with a tolerance of ±10%.
Note 2. The operating characteristics are measured at a coil temperature of 23°C.
Note 3. The “Max. voltage” is the maximum voltage that can be applied to the relay coil.
●Contacts
■Characteristics
Note. Values in the above table are the initial values at 23°C.
*1. Measurement conditions: 5 VDC, 1 A, voltage drop method
*2. Measurement conditions: Measured at the same points as the dielectric
strength using a 500 VDC ohmmeter.
*3. This value was measured at a switching frequency of 120 operations/min.
*4. Sealed (G5NB-1A4, -1A4-E): -40°C to 70°C
■Actual Load Life (Reference Values)
1. 120 VAC motor and lamp load
2.5A surge and 0.5A normal:
250,000 operations min. (at 23°C)
2. 160 VDC valve load (with varistor)
0.24A:
250,000 operations min. (at 23°C)
3. 140 VAC pump load
Inrush: 5.4 A (o-p), Steady state: 1.6 A
200,000 operations min. (Ambient temperature: 23°C)
4. 100 VAC motor load
Inrush: 10.7 A (o-p), Steady state: 1.1 A
200,000 operations min. (Ambient temperature: 23°C)
Item Rated current
(mA)
Coil resistance
(Ω)
Must operate voltage
(V)
Must release voltage
(V)
Max. voltage
(V) Power consumption
(mW)
Rated voltage % of rated voltage
5 VDC 40 125
75% max. 10% min.
Standard:
180% (at 23°C)
High-capacity:
170% (at 23°C)
Approx. 200
12 VDC 16.7 720
18 VDC 11.1 1,620
24 VDC 8.3 2,880
Item Load Resistive load
Standard High-capacity
Contact Type Single
Contact material Ag-alloy (Cd free)
Rated load 3 A at 125 VAC 5 A at 250 VAC
3 A at 30 VDC 3 A at 30 VDC
Rated carry current 3 A 5 A
Max. switching voltage 250 VAC, 30 VDC
Max. switching current 3 A 5 A
Contact resistance *1 100 mΩ max.
Operate time 10 ms max.
Release time 10 ms max.
Insulation resistance *2 1,000 MΩ min.
Dielectric
strength
Between coil
and contacts 4,000 VAC, 50/60 Hz for 1 min
Between
contacts of the
same polarity
750 VAC, 50/60 Hz for 1 min
Impulse
withstand
voltage
Between coil
and contacts 10 kV (1.2 x 50 μs)
Vibration
resistance
Destruction 10 to 55 to 10 Hz, 0.75 mm single amplitude
(1.5 mm double amplitude)
Malfunction 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
Mechanical 5,000,000 operations min.
Electrical
(resistive load)
Standard (G5NB-1A, -1A4)
200,000 operations at 125 VAC, 3A
200,000 operations at 30 VDC, 3A
High-capacity (G5NB-1A-E, -1A4-E)
100,000 operations at 250 VAC, 5A
200,000 operations at 30 VDC, 3A
(with a rated load at 1,800 operations/hour)
Failure rate (P level)
(reference value) *3 DC5V 10mA
Ambient operating
temperature *4
-40°C to 85°C
(with no icing or condensation)
Ambient operating humidity 5% to 85%
Weight Approx. 4 g
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■Engineering Data
Note: The maximum coil voltage refers to the maximum value in a varying range of operating power voltage, not a continuous voltage.
●Maximum Switching Capacity
Standard models High-capacity models
●Durability
Standard models High-capacity models
●Ambient Temperature vs. Maximum Coil Voltage
Standard models High-capacity models
Switching voltage (V)
10
3
1
0.1
1 10 30 100 250 1,000
DC resistive
load
AC resistive
load
Switching current (A)
Switching voltage (V)
DC resistive
load
AC resistive
load
Switching current (A)
100
50
30
10
5
3
1
0 1 2 3 4
125 VAC, 30 VDC resistive load
Durability (104 operations)
Switching current (A)
30VDC resistive load
250VAC resistive load
Durability (x 10
4
operations)
Switching current (A)
Maximum coil voltage (%)
Ambient temperature (°C)
Test item: G5NB-1A, 24 VDC
Number of Relays: 5 pcs
3A current
Uncon-
firmed
area
40 60 80
85 100
120
140
160
200
220
80
100
180
020 23
220
200
180
160
140
120
100
80
0 20 23 40 60 80 85 100
Maximum coil voltage (%)
Ambient temperature (°C)
5A current
Uncon-
firmed
area
Number of Relays: 5 pcs
Test Item: G5NB-1A-E,24 VDC
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■Dimensions (Unit: mm)
●Shock malfunction
Standard models High-capacity models
Z
Z
Z'
Z'
Shock direction
Unit: m/s2
Y
Y
Y'
Y'
X
X
X'
X'
1,000
1,000
1,000 1,000
1,000 1,000
Energized
De-energized
700
125
Test Item: G5NB-1A-E, 24VDC
Number of Relays: 5 pcs
Test Method: Shock was applied 3
times in 6 directions along 3 axes
and the level at which shock caused
malfunction was measured.
Rating: 100 m/s2
711.5
20.5max.
(20.4)*
15.3max.
(15.0)*
7.2max.
(7.0)*
4.7
(1.05)
(1.15)
Four, 1.1 dia.
21
4
3
3.4
@0.4
11.5 7
0.27 0.33 0.8
4.7
*Average value
G5NB-1A(4)(-E), G5NB-1A-E-HA PCB Mounting Holes
(Bottom View)
Tolerance: ±0.1 mm
(No coil polarity)
Terminal Arrangement/
Internal Connections
(Bottom View)
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■Approved Standards
The approval rating values for overseas standards are different from the performance values determined individually. Confirm the values
before use.
●UL Recognized: (File No. E41515)
CSA Certified: (File No. LR31928)
●EN/IEC, VDE Certified (Certificate No. 137575)
■Precautions
●Please refer to “PCB Relays Common Precautions” for correct use.
Model Contact form Coil ratings Contact ratings Number of test
operations
G5NB-1A(4) SPST-NO
(1a) 5~24V DC
3A 250V AC (Resistive) 85°C 100,000
3A 30V DC (Resistive) 70°C 6,000
G5NB-1A(4)-E
G5NB-1A-E-HA
5A 250 V AC (Resistive) 85°C
5A 30 V DC (Resistive) 70°C 6,000
Model Contact form Coil ratings Contact ratings Number of test
operations
G5NB-1A(4)
SPST-NO
(1a)
5, 12, 18, 24V
DC
3A 250V AC (Resistive) 85°C
3A 30V DC (Resistive) 85°C 100,000
G5NB-1A(4)-E
G5NB-1A-E-HA
5A 250 V AC (Resistive) 85°C
5A 30 V DC (Resistive) 85°C 10,000
3A 250V AC (Resistive) 85°C 100,000
Creepage distance 6.0 mm min.
Clearance distance 6.0 mm min.
Insulation material group IIIa
Type of insulation coil-contact circuit
open contact circuit
Pollution degree 2 / Reinforced (Sealed)
Pollution degree 3 / Basic (Flux protection) / Reinforced (Sealed)
Micro disconnection
Rated Insulation voltage 250 V
Pollution degree 3
Rated voltage system 250 V
Over voltage category III
Category of protection according to IEC 61810-1 RT II (Flux protection) / RT III (Sealed)
Glow wire according to IEC 60335-1 <HA Models only>
GWT 750°C min. (IEC 60695-2-11) / GWFI 850°C min. (IEC 60695-2-12)
Tracking resistance according to IEC 60112 PTI 250 V min. (housing parts)
Flammability class according to UL94 V-0
• Application examples provided in this document are for reference only. In actual applications, confirm equipment functions and safety before using the product.
• Consult your OMRON representative before using the product under conditions which are not described in the manual or applying the product to nuclear control systems, railroad
systems, aviation systems, vehicles, combustion systems, medical equipment, amusement machines, safety equipment, and other systems or equipment that may have a serious
influence on lives and property if used improperly. Make sure that the ratings and performance characteristics of the product provide a margin of safety for the system or
equipment, and be sure to provide the system or equipment with double safety mechanisms.
OMRON Corporation
Electronic and Mechanical Components Company Contact: www.omron.com/ecb Cat. No. J143-E1-11
0117(0207)(O)
Note: Do not use this document to operate the Unit.