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HE-A Relays

Coil data

  • Operating characteristics such as "Operate voltage" and "Release voltage" are influenced by mounting conditions or ambient 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
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)
Rated operating
power
(at 20°C)
Max. allowable
voltage
(at 55°C)
12 V DC Max. 75% V
of rated coil
voltage
(Initial)
Max. 5% V
of rated coil
voltage
(Initial)
160 mA 75 Ω 1,920 mW
Holding*2: 310 mW*3
110% V
of rated
coil voltage
24 V DC 80 mA 300 Ω
*1Square, pulse drive
*2When using with the holding voltage, switch to the holding voltage after 100 ms from the application of the coil rated voltage.
*3With 40% V coil holding voltage

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Specifications

Item Specifications
Contact
data
Form A contact Contact arrangement 1 Form A, 1 Form A 1 Form B
Contact resistance (initial) Max. 10 mΩ (by voltage drop 20 A 6 V DC)
Contact material AgNi type
Contact rating (inductive) 90 A 277 V AC cosφ = 0.8
Contact rating (resistive) 60 A 490 V AC, 55 A 800 V AC, 90 A 60 V DC
Max. switching power (resistive) 44,000 VA, 5,400 W
Max. switching voltage (resistive) 800 V AC, 60 V DC
Max. switching current (inductive) 90 A
Max. carrying current 110 A
Min. switching load (reference value)*1 100 mA 5 V DC
Form B contact
(1a1b type only)
Contact arrangement 1 Form A 1 Form B
Contact resistance (initial) Max. 100 mΩ (by voltage drop 1 A 6 V DC)
Contact material Au flashed AgNi type
Contact rating (resistive) 1 A 30 V DC
Max. switching power (resistive) 30 W
Max. switching voltage (resistive) 30 V DC
Max. switching current (resistive) 1 A
Min. switching load (reference value)*1 10 mA 5 V DC
Insulation resistance (initial) Min. 1,000 MΩ
(at 500 V DC, Measured portion is the same as the case of dielectric strength)
Dielectric strength (initial) 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 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
Coil holding voltage*3 40 to 110% V (at -40 to +55°C)
40 to 60% V (at +55 to +85 ℃)
Time characteristics
(initial)
Operate time Max. 30 ms (at rated coil voltage, at 20°C, without bounce)
Release time*4 Max. 10 ms (at rated coil voltage, at 20°C, without bounce, without diode)
Shock resistance Functional 98 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 1.0 mm, detection time: 10 μs)
Destructive 10 to 55 Hz (at double amplitude of 1.5 mm)
Expected life Mechanical life Min. 106 ope. (switching frequency: at 180 times/min)
Conditions Conditions for usage,
transport and storage
Ambient temperature:
-40 to +55°C
(When applied coil hold voltage is 40 to 110% V of rated coil voltage.)
-40 to +85°C
(When applied coil hold voltage is 40 to 60% V of rated coil voltage or transport and storage.)
Humidity:
5 to 85% RH (Avoid icing and condensation)
Unit weight Approx. 80 g
*1This 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.
*2Wave is standard shock voltage of ±1.2 x 50 µs according to JEC-212-1981
*3Coil holding voltage is the coil voltage after 100 ms from the applied rated coil voltage.
*4Release time will lengthen if a diode, etc., is connected in parallel to the coil. Be sure to verify operation under actual conditions.

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Expected electrical life

Type Load Switching capacity Number of operations
Form A contact Inductive load 90 A 277 V AC
cosφ = 0.8
Min. 103 ope. (ON:OFF = 1s:9s, at 85°C)
Resistive load 60 A 490 V AC Min. 10 x 103 ope. (ON:OFF = 1s:9s)
55 A 800 V AC Min. 103 ope. (ON:OFF = 1s:9s)
40 A 600 V AC Min. 50 x 103 ope. (ON:OFF = 1s:9s, at 85°C)
30 A 800 V AC Min. 50 x 103 ope. (ON:OFF = 1s:9s, at 85°C)
90 A 60 V DC Min. 10 x 103 ope. (ON:OFF = 1s:9s, at 85°C)
Form B contact
(1 Form A 1 Form B type only)
Resistive load 1 A 30 V DC Min. 100 x 103 ope. (ON:OFF = 1s:9s)

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