Power relays ( Over 2 A )
HE-R RELAYS
Product Catalog
2022.4
Power Relays (Over 2A)
HE-R
RELAYS
Compact size 4 Form A and 4 Form A 1 Form B 40A power relays for Charging station and Industrial equipment
FEATURES
Protective construction:Flux-resistant type
58.0
35.0
58.0
35.0
47.0
4 Form A (4a)
High capacity (40 A 480 V AC 30x103 operations)
Max switching current 50 A
PCB Terminals for 3 phase system
Welding detection function : Mirror contact
mechanisms (Compliant with IEC60947-4-1)
Compact size
Low operating power: 4.0 W (Holding power: 0.49 W)
Contact gap: Min. 3.6 mm
Short circuit capability Ip=1.85 kA I2t=4.5kA2s
(Compliant with IEC62955)
47.0
TYPICAL APPLICATIONS
4 Form A 1 Form B (4a1b)
Charging Station
Industrial equipment
(Unit:mm)
DETAILS FEATURES
Contact gap (initial)
Insulation distance (initial)
Form A contact
Min. 3.6 mm each Form A contact
Between Form A contact and coil
Min. 8.0 mm (Clearance/Creepage)
Form B contact
Min. 0.5 mm
(when Form A contact welded)
Between Form B contact and coil
Min. 3.2 mm (Clearance/Creepage)
Between Form A contact sets
Min. 5.5 mm (Clearance/Creepage)
Between Form A contact and Form B contact Min. 8.0 mm (Clearance/Creepage)
he most suitable for IEC compliant charging stations
T
(IEC 61851-1, IEC 62955)
· Contact Gap: Min. 3.6 mm (Initial Value)
· Electrical life: 32 A 277 V AC Min. 50×103 operations
· Short circuit withstand: Ip = 1.85 kA, I2t = 4.5 kA2s
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ASCTB441E 202204
Power Relays (Over 2A) HE-R RELAYS
ORDERING INFORMATION (PART NO.)
AHER
1 9
Contact arrangement/Operating function
3 : 4 Form A, Single side stable
4 : 4 Form A 1 Form B, Single side stable
Contact type
1:Standard type
Terminal shape
9:PC board terminal
Rated coil voltage(DC)
Part number
1 2
Rated coil voltage(V)12 24
Note : Please contact us for other coil voltages.
TYPES
PC board terminal
Contact arrangement
4 Form A
4 Form A 1 Form B
Rated coil voltage
Part No.
12 V DC
AHER3191
24 V DC
AHER3192
12 V DC
AHER4191
24 V DC
AHER4192
Standard packing
Inner carton
Outer carton
10 pcs.
50 pcs.
RATING
Coil data
perating characteristics such as ‘Operate voltage’ and ‘Release voltage’ are influenced by mounting conditions, ambient
O
temperature, etc.
Therefore, please use the relay within ± 5% of rated coil voltage.
‘Initial’ means the condition of products at the time of delivery.
Rated coil voltage
12 V DC
24 V DC
Operate voltage*1
(at 20°C)
Release voltage*1
(at 20°C)
Rated operating current
(±10%, at 20°C)
Coil resistance
(±10%, at 20°C)
Max. 75% V of
rated coil voltage
(Initial)
Min. 5% V of rated
coil voltage
(Initial)
333 mA
36.0 Ω
167 mA
144.0 Ω
Rated operating power
Max. allowable voltage
(at 55°C)
4,000 mW
Holding*2: 490 mW*3
110% V of rated
coil voltage
*1. Square, pulse drive
*2. When using with the holding voltage, switch to the holding voltage after 200ms from the application of the coil rated voltage.
*3. With 35% V coil holding voltage
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ASCTB441E 202204
Power Relays (Over 2A) HE-R RELAYS
Specifications
Item
Specifications
Contact arrangement
Contact resistance (initial)
Max.10 mΩ (by voltage drop 20 A 6 V DC after 3 min.)
Max.3 mΩ (by voltage drop 32 A 6 V DC,reference value)
Contact material
AgSnO2 type
Contact rating (resistive)
40 A 480 V AC
Max. switching power
Form A contact
(resistive)
Contact data
19,200 VA
Max. switching voltage
480 V AC
Max. switching current
50 A
Min. switching load
(reference value)*1
100 mA 24 V DC
Contact resistance (initial)
Max. 100 mΩ (by voltage drop 1 A 6 V DC)
Contact material
Au plated AgNi type
Contact rating (resistive)
1 A 30 V DC, 1 A 277 V AC
Max. switching power
Form B contact
(resistive)
(4a1b type only)
Max. switching voltage
30 W, 277 VA
30 V DC, 277 V AC
Max. switching current
1A
Min. switching load
(reference value) *1
10 mA 5 V DC
Min. 1,000 MΩ
(at 500 V DC, Measured portion is the same as the case of dielectric strength)
Insulation resistance (initial)
Dielectric
strength (initial)
4 Form A (4a), 4 Form A 1 Form B (4a1b)
Between open Form A contacts
2,000 Vrms for 1 min ( detection current: 10 mA )
Between Form A contact and coil
5,000 Vrms for 1 min ( detection current: 10 mA )
Between Form A contact sets
5,000 Vrms for 1 min ( detection current: 10 mA )
Between open Form B contacts
1,000 Vrms for 1 min ( detection current: 10 mA )
Between Form B contact and coil
2,000 Vrms for 1 min ( detection current: 10 mA )
Between Form A contact and Form B contact 5,000 Vrms for 1 min ( detection current: 10 mA )
Surge withstand
voltage
(initial)*2
Between Form A contact and coil
10,000 V
Between Form B contact and coil
2,500 V
35 to 110% V (at -40 to 55°C, Form A contact: 50 A)
35 to 50% V (at -40 to 85°C, Form A contact: 40 A to 50 A)
Coil holding voltage*3
Time
characteristics
(initial)
Operate time
Max. 50 ms (at rated coil voltage, at 20°C, without bounce)
Release time*4
Max. 30 ms (at rated coil voltage, at 20°C, without bounce, without diode)
Functional
25 m/s2 (half-sine shock pulse: 11 ms, detection time: 10 μs)
Destructive
980 m/s2 ( half-sine shock pulse: 6 ms )
Vibration
resistance
Functional
10 to 55 Hz (at double amplitude of 0.3 mm, detection time: 10 μs)
Destructive
10 to 55 Hz (at double amplitude of 1 mm)
Expected life
Mechanical life
Min. 100 x 103 ope. (switching frequency: 180 times/min)
Conditions
Conditions for usage, transport and
storage
Ambient temperature: -40 to +55°C
(When applied coil hold voltage is 35 to 110%V of rated coil voltage.)
-40 to +85°C
(When applied coil hold voltage is 35 to 50%V of rated coil voltage or storage.)
Humidity: 5 to 85% RH (Avoid icing and condensation)
Shock resistance
Unit weight
Approx. 180 g
*1. This value can change due to the switching frequency, environmental conditions, and desired reliability level, therefore it is recommended to check this with the actual load.
*2. Wave is standard shock voltage of ± 1.2 × 50 μs according to JEC-212-1981
*3. Coil holding voltage is the coil voltage after 200 ms from the applied rated coil voltage.
*4. Release time will lengthen if a diode, etc., is connected in parallel to the coil. Be sure to verify operation under actual conditions.
Expected electorical life
Type
Load
Form A contact
Resistive load
Form B contact
(4a1b type only)
Resistive load
Switching capacity
Number of operations
40 A 480 V AC
30×103 (ON : OFF= 1s : 9s)
32 A 277 V AC
50×103 (ON : OFF= 1s : 9s)
1 A 30 V DC
100×103 (ON : OFF= 1s : 9s)
1 A 277 V AC
100×103 (ON : OFF= 1s : 9s)
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ASCTB441E 202204
Power Relays (Over 2A) HE-R RELAYS
REFERENCE DATA
1. Max. switching capacity
2. Switching life curve
3. Coil temperature characteristics
Measured portion:Coil inside
Contact current:50A, 40A, 0A
Ambient temperature:25℃, 55℃, 85℃
100.0
100
Contact current(A)
50
AC resistive load
10
25℃ 50A
90.0
Temperature rise(℃)
No. of operations(×10 3)
1,000
100
250V AC resistive load
30
10
55℃ 50A
80.0
25℃ 0A
70.0
60.0
50.0
40.0
30.0 85℃ 40A
20.0
10.0
1
10
1
100
Contact voltage(V)
1,000
4. A
mbient temperature characteristics
(Average)
1
0
20
40
Contact current(A)
60
5. Allowable range of coil holding voltage and
temperature
85℃ 0A
0.0
20
40
60
80
100
Coil applied voltage(%V)
120
6. Allowable range of contact current and
temperature
Release
voltage
Operate
voltage
0
10
5
0
ー5
20 40 60 80 100
Ambient
(℃)
temperature
120
60
100
50
80
Allowable range
60
40
ー10
ー15
Contact current(A)
ー60 ー40 ー20
15
Coil holding voltage(%V)
(%)
Rate of change
Tested sample:AHER4191, 6 pcs.
40
Allowable range
30
20
20
10
0
0
20 40 60 80 100
(℃)
Ambient temperature
ー60 ー40 ー20
0
0
20 40 60 80 100
(℃)
Ambient temperature
ー60 ー40 ー20
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ASCTB441E 202204
Power Relays (Over 2A) HE-R RELAYS
DIMENSIONS
Unit: mm
■ 4 Form A (4a)
35.0±0.5
External dimensions
28.8
1.5
5.5 +-0.5
0.3
47.0±0.5
58.0±0.5
0.5
2.1
1.0
12.9
13.5
13.5
9.4
21.0
13.5
General tolerance ±0.3
Recommended PC board pattern
(BOTTOM VIEW)
13.5
13.5
13.5
R0.8
2.5
11.0
28.8
R0.5
1.0
8
21.0
12.9
Schematic
(BOTTOM VIEW)
5
9
10
11
12
4
3
2
1
1.6
Tolerance ±0.1
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ASCTB441E 202204
Power Relays (Over 2A) HE-R RELAYS
■ 4 Form A 1 Form B (4a1b)
35.0±0.5
External dimensions
14.6
28.8
1.5
5.5 +-0.5
0.3
47.0±0.5
58.0±0.5
0.5
2.1
12.9
1.0
13.5
13.5
9.4
21.0
13.5
4a1b type only
General tolerance ±0.3
Recommended PC board pattern
(BOTTOM VIEW)
12.9
13.5
13.5
Schematic
(BOTTOM VIEW)
13.5
R0.8
R0.5
8
9
10
11
12
4
3
2
1
21.0
11.0
14.6
28.8
7
6
2.5
5
1.0
4a1b type only
1.6
Tolerance ±0.1
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ASCTB441E 202204
Power Relays (Over 2A) HE-R RELAYS
SAFETY STANDARDS
UL/C-UL (Approved)
Form B contact (4a1b type only)
Form A contact
Operations
Ambient
temperature
50 A 277 V AC Resistive
10 × 103
85°C
32 A 277 V AC Resistive
50 × 10
85°C
File No.
E43149
Contact rating
3
File No.
E43149
Operations
Ambient
temperature
1 A 30 V DC Resistive
100 × 103
85°C
1 A 277 V AC Resistive
100 × 103
85°C
Operations
Ambient
temperature
40 × 103
85°C
Contact rating
UL (Approved)
Form A contact
File No.
E43149
Contact rating
40 A 480 V AC Resistive
Operations
Ambient
temperature
30 × 103
85°C
VDE (Approved)
Form A contact
Operations
Ambient
temperature
File No.
AC-1:32 A ( cosφ=1 ) 250 V AC
50 × 103
85°C
40053274
AC-1:40 A ( cosφ=1 ) 480 V AC
30 × 10
85°C
File No.
40053274
Form B contact (4a1b type only)
Contact rating
3
Contact rating
DC-13 24 V DC 1 A, L/R=48 ms
INSULATION CHARACTERISTICS (IEC61810-1)
Item
Characteristics
Clearance/Creepage distance
Min. 8.0/ 8.0 mm (Form A contact)
Category of protection
RT II
Tracking resistance
PTI 175
Insulation material group
III a
Over voltage category
III
Rated voltage
250 V
Pollution degree
3
Type of insulation (Between contact and coil)
Reinforced insulation (Form A contact)
Type of insulation (Between open contact)
Full disconnection (Form A contact)
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ASCTB441E 202204
Power Relays (Over 2A) HE-R RELAYS
GUIDELINES FOR USAGE
For cautions for use, please read “GUIDELINES FOR RELAY USAGE”.
https://industrial.panasonic.com/ac/e/control/relay/cautions_use/index.jsp
Guidelines for HE-R relays usage
When coil holding voltage controlled by PWM, check coil holding voltage and operation of relay under the actual condition.
If this relay is used as a DC high voltage switch, the final failure mode may be uninterruptible.
In the event that the power cannot be cut off, in the worst case, the fire may spread to the surrounding area, so the power can be
turned off within one second. For safety reasons, consider a fail-safe circuit for your equipment.
To detect the main contacts welding by Form b contacts, please design the appropriate detection time considering with the release
and bounce time. (4a1b type only)
Conditions for usage, transport and storage
1) Ambient temperature
-40 to + 55°C
(When applied coil hold voltage is 35%V to 110%V of rated coil voltage.)
-40 to + 85°C
(When applied coil hold voltage is 35 to 50% of rated coil voltage or strage.)
(Please reduce the Max. carrying current 0.5 A/°C at 65°C to 85°C)
[Allowable range of temperature and humidity for usage,
transport and storage]
Humidity (% RH)
2) Humidity
5 to 85% RH (Avoid icing and condensation)
85
Allowable range
Note: In addition the humidity range depends on temperature.
3) Air pressure
86 to 106 kPa
Avoid icing
when used at
temperatures
lower than 0°C
ー40
Coil holding voltage
Max. carrying current
Avoid con
densation when
used at tem
peratures higher
than 0°C
5
0
Ambient temperature (℃)
35 to 110% V
50 A
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55 65
85
35 to 50% V
Reduce
0.5 A/℃
40 A
ASCTB441E 202204
GUIDELINES FOR POWER, HIGH-CAPACITY DC CUT OFF AND SAFETY RELAYS USAGE
For cautions for use, please read “GUIDELINES FOR RELAY USAGE”.
https://industrial.panasonic.com/ac/e/control/relay/cautions_use/index.jsp
Precautions for Coil Input
Long term current carrying
A circuit that will be carrying a current continuously for long periods
without relay switching operation. (circuits for emergency lamps,
alarm devices and error inspection that, for example, revert only
during malfunction and output warnings with form B contacts)
Continuous, long-term current to the coil will facilitate deterioration
of coil insulation and characteristics due to heating of the coil itself.
For circuits such as these, please use a magnetic-hold type latching
relay. If you need to use a single stable relay, use a sealed type
relay that is not easily affected by ambient conditions and make a
failsafe circuit design that considers the possibility of contact failure
or disconnection.
DC Coil operating power
Steady state DC current should be applied to the coil. The wave
form should be rectangular. If it includes ripple, the ripple factor
should be less than 5%.
However, please check with the actual circuit since the electrical
characteristics may vary. The rated coil voltage should be applied to
the coil and the set/reset pulse time of latching type relay differs for
each relays, please refer to the relay's individual specifications.
Maximum allowable voltage and temperature rise
Proper usage requires that the rated coil voltage be impressed on
the coil. Note, however, that if a voltage greater than or equal to the
maximum continuous voltage is impressed on the coil, the coil may
burn or its layers short due to the temperature rise. Furthermore, do
not exceed the usable ambient temperature range listed in the
catalog.
Operate voltage change due to coil temperature rise
In DC relays, after continuous passage of current in the coil, if the
current is turned OFF, then immediately turned ON again, due to the
temperature rise in the coil, the operate voltage will become
somewhat higher. Also, it will be the same as using it in a higher
temperature atmosphere. The resistance/temperature relationship
for copper wire is about 0.4% for 1°C, and with this ratio the coil
resistance increases. That is, in order to operate of the relay, it is
necessary that the voltage be higher than the operate voltage and
the operate voltage rises in accordance with the increase in the
resistance value. However, for some polarized relays, this rate of
change is considerably smaller.
Coil connection
When connecting coils of polarized relays, please check coil polarity
(+,-) at the internal connection diagram (Schematic). If any wrong
connection is made, it may cause unexpected malfunction, like
abnormal heat, fire and so on, and circuit do not work. Avoid
impressing voltages to the set coil and reset coil at the same time.
Ambient Environment
Usage, Transport, and Storage Conditions
Dew condensation
Condensation occurs when the ambient temperature drops suddenly
from a high temperature and humidity, or the relay is suddenly
transferred from a low ambient temperature to a high temperature
and humidity. Condensation causes the failures like insulation
deterioration, wire disconnection and rust etc.
Panasonic Industry Co., Ltd. does not guarantee the failures caused
by condensation.
The heat conduction by the equipment may accelerate the cooling
of device itself, and the condensation may occur.
Please conduct product evaluations in the worst condition of the
actual usage. (Special attention should be paid when high
temperature heating parts are close to the device. Also please
consider the condensation may occur inside of the device.)
Icing
Condensation or other moisture may freeze on relays when the
temperature become lower than 0°C.This icing causes the sticking
of movable portion, the operation delay and the contact conduction
failure etc. Panasonic Industry Co., Ltd. does not guarantee the
failures caused by the icing.
The heat conduction by the equipment may accelerate the cooling
of relay itself and the icing may occur. Please conduct product
evaluations in the worst condition of the actual usage.
Low temperature and low humidity
The plastic becomes brittle if the switch is exposed to a low
temperature, low humidity environment for long periods of time.
High temperature and high humidity
Storage for extended periods of time (including transportation
periods) at high temperature or high humidity levels or in
atmospheres with organic gases or sulfide gases may cause a
sulfide film or oxide film to form on the surfaces of the contacts and/
or it may interfere with the functions. Check out the atmosphere in
which the units are to be stored and transported.
During usage, storage, or transportation, avoid locations subjected
to direct sunlight and maintain normal temperature, humidity and
pressure conditions.
Temperature/Humidity/Pressure
When transporting or storing relays while they are tube packaged,
there are cases the temperature may differ from the allowable
range. In this case be sure to check the individual specifications.
Also allowable humidity level is influenced by temperature, please
check charts shown below and use relays within mentioned
conditions. (Allowable temperature values differ for each relays,
please refer to the relay's individual specifications.)
1) Temperature:
The tolerance temperature range differs for each relays, please
refer to the relay’s individual specifications
2) Humidity: 5 to 85 % RH
3) Pressure: 86 to 106 kPa
Humidity (% RH)
85
Allowable range
Avoid icing
when used at
temperatures
lower than 0°C
Avoid con
densation when
used at tem
peratures higher
than 0°C
5
40
0
Ambient temperature (℃)
85
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ASCTB412E 202204
GUIDELINES FOR POWER, HIGH-CAPACITY DC CUT OFF AND SAFETY RELAYS USAGE
Package
In terms of the packing format used, make every effort to keep the
effects of moisture, organic gases and sulfide gases to the absolute
minimum.
Silicon
When a source of silicone substances (silicone rubber, silicone oil,
silicone coating materials and silicone filling materials etc.) is used
around the relay, the silicone gas (low molecular siloxane etc.) may
be produced.
This silicone gas may penetrate into the inside of the relay. When
the relay is kept and used in this condition, silicone compound may
adhere to the relay contacts which may cause the contact failure.
Do not use any sources of silicone gas around the relay (Including
plastic seal types).
NOx Generation
When relay is used in an atmosphere high in humidity to switch a
load which easily produces an arc, the NOx created by the arc and
the water absorbed from outside the relay combine to produce nitric
acid.
This corrodes the internal metal parts and adversely affects
operation.
Avoid use at an ambient humidity of 85%RH or higher (at 20°C). If
use at high humidity is unavoidable, please contact our sales
representative.
Others
Cleaning
• Although the environmentally sealed type relay (plastic sealed type,
etc.) can be cleaned, avoid immersing the relay into cold liquid (such
as cleaning solvent) immediately after soldering. Doing so may
deteriorate the sealing performance.
• Cleaning with the boiling method is recommended(The temperature
of cleaning liquid should be 40°C or lower ).
Avoid ultrasonic cleaning on relays. Use of ultrasonic cleaning may
cause breaks in the coil or slight sticking of the contacts due to
ultrasonic energy.
Please refer to "the latest product specifications"
when designing your product.
•Requests to customers:
https://industrial.panasonic.com/ac/e/salespolicies/
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ASCTB412E 202204
Electromechanical Control Business Division
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©Panasonic Industry Co., Ltd. 2022
Specifications are subject to change without notice.
ASCTB441E 202204
2022.4