HE-R Series Relays

Compact Size Power Relays in Multiple Contact Arrangements for Energy Management Applications!

The Panasonic HE-R Series is an Energy Management Relay designed for single-phase or 3-phase AC charging units, combining High Capacity, High Switching, and Low Operating Power into a small size Power Relay.

The HE-R Series Relay also features a low coil-holding voltage for reduced power consumption and is PCB mounted to ease board assembly. This Relay also meets the necessary Short Circuit Current Rating (SCCR) to pass UL and IEC standards for EV charging equipment, making it suitable for charging stations, industrial equipment, and more.

Features & Benefits of the HE-R Series Relay

  • High Capacity Switching and Carry Current Capability
    • 2 Form A (2a) – max switching current 80A @277VAC
    • 2 Form A 1 Form B (2a1b) – max switching current 80A @277VAC
    • 4 Form A (4a) – max switching current 40A @480VAC (50A carry)
    • 4 Form A 1 Form B (4a1b) – max switching current 40A @480VAC (50A carry)
  • Mirror Contact Structure with Auxiliary Contact Allows for Welding Detection Function Compliant With IEC60947-4-1 Standard
  • Low Operating Power (0.49 Watts) Using Reduced Coil Holding Voltage
  • Contact gap: Min. 3.6mm
  • Short Circuit Capability:
    • 2 FormA/2 Form A 1 Form B: 
      • Irms ＝ 5 kA ( Compliant with UL508 )
    • 4 Form A/4 Form A 1 Form B:
      • Ip  ＝ 2.6 kA
      • I2t ＝ 6.5 kA2s ( Compliant with IEC62955 )
  • RoHS & REACH Compliant

Industries of the HE-R Series

  • Electric Vehicle Charging (EVSE)
  • Industrial
  • Power Generation
  • Solar

Applications of the HE-R Series

  • Single Phase AC Charger
  • 3-Phase AC Charger
  • Industrial Inverter (Single Phase)
  • Industrial Inverter (3-Phase)
  • Industrial Welding Machine
  • Solar Inverter

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Part Number List

Results 8
Models table for series HE-R Series Relays
Part No.DatasheetOperating Function Rated Coil VoltageContact ArrangementProtective ConstructionTerminal TypePacking QuantityPacking Quantity; Inner Carton (Pcs.) Packing Quantity; Outer Carton (Pcs.)Operate Voltage (@20oC)Release Voltage (at20°C) Rated Operating Current [±10%] (at 20°C)Resistance [±10%] (at 20°C) Rated Operating Power Max. Allowable Voltage Contact Resistance (Initial)Contact MaterialContact Rating (Resistive Load)Max. Switching Power (Resistive Load) Max. Switching VoltageMax. Switching CurrentMin. Switching Load (Reference Value) Insulation Resistance (Initial)Dielectric Strength: Between Form A Contact and Form B ContactSurge Withstand Voltage (Initial): Between Contact and CoilCoil Holding VoltageOperate Time (Initial) (At 20oC)Release Time (Initial) (at 20°C) Hock Resistance (Functional)Hock Resistance (Destructive)Vibration Resistance (Functional) Vibration Resistance (Destructive)Mechanical LifeConditionsWeight (Typ.)Resistive Load
AHER3191
Single side stable
12 V DC
4 Form A
Flux-resistant
PC board terminal
Carton
10
50
Max. 75% V of rated coil voltage (Initial)
Min. 5% V of rated coil voltage (Initial)
333 mA
36.0 Ω
4,000 mW
Holding: 490 mW
(at 55°C)
110% V of rated coil voltage
Max. 10 mΩ (by voltage drop 6 V DC 20 A after 3 min.)
Max. 3 mΩ (by voltage drop 6 V DC 50 A, reference value)
AgSnO2 type
40 A 480 V AC
19,200 VA
480 V AC
50 A
100 mA 24 V DC
Min. 1,000 MΩ (at 500 V DC, Measured portion is the same as the case of dielectric strength)
5,000 Vrms for 1min (detection current: 10 mA)
10,000 V (Between Form A contact and coil)
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)
Max. 50 ms at rated coil voltage (without bounce)
Max. 30 ms at rated coil voltage (without bounce, without diode)
25 m/s2 (half-sine shock pulse: 11 ms, detection time: 10 µs)
980 m/s2 (half-sine shock pulse: 6 ms)
10 to 55 Hz (at double amplitude of 0.3 mm, detection time: 10 µs)
10 to 55 Hz (at double amplitude of 1.5 mm)
Min. 100x103 ope. (switching frequency: at 180 times/min)
Ambient temperature: -40 to +55°C
(When applied coil hold voltage is 35 to 110 % V of rated coil voltage.)

Ambient temperature: -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)
Approx. 180g
[switching frequency ON : OFF = 1 s : 9 s]
Min. 30x103 ope. 40 A 480 V AC
Min. 50x103 ope. 32 A 277 V AC
AHER2282
Single side stable
24 V DC
2 Form A 1 Form B
Flux-resistant
PC board terminal
Carton
10
50
Max. 75% V of rated coil voltage (Initial)
Min. 5% V of rated coil voltage (Initial)
167 mA
144.0 Ω
4,000 mW
Holding: 490 mW
(at 55°C)
110% V of rated coil voltage
Form A contact:
Max. 10 mΩ (by voltage drop 6 V DC 80 A after 3 min.)
Max. 3 mΩ (by voltage drop 6 V DC 50 A, reference value)
Form B contact: Max. 100 mΩ (by voltage drop 6 V DC 1 A)
Form A contact: AgNi type
Form B contact: Au planted AgNi type
Form A contact: 80 A 277 V AC
Form B contact: 1 A 277 V AC, 0.5 A 30 V DC
Form A contact: 22,160 VA
Form B contact: 277 VA, 15 W
Form A contact: 277 V AC
Form B contact: 277 V AC, 30 V DC
Form A contact: 80 A
Form B contact: 1 A
Form A contact: 100 mA 24 V DC
Form B contact: 10 mA 5 V DC
Min. 1,000 MΩ (at 500 V DC, Measured portion is the same as the case of dielectric strength)
5,000 Vrms for 1min (detection current: 10 mA)
10,000 V (Between Form A contact and coil)
2,500 V (Between Form B contact and coil)
35 to 110% V (at -40 to +55°C, Form A contact: 80 A)
35 to 50% V (at -40 to +85°C, Form A contact: 70 A to 80 A)
Max. 50 ms at rated coil voltage (without bounce)
Max. 30 ms at rated coil voltage (without bounce, without diode)
25 m/s2 (half-sine shock pulse: 11 ms, detection time: 10 µs)
980 m/s2 (half-sine shock pulse: 6 ms)
10 to 55 Hz (at double amplitude of 0.3 mm, detection time: 10 µs)
10 to 55 Hz (at double amplitude of 1.5 mm)
Min. 100x103 ope. (switching frequency: at 180 times/min)
Ambient temperature: -40 to +55°C
(When applied coil hold voltage is 35 to 110 % V of rated coil voltage.)

Ambient temperature: -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)
Approx. 180g
[switching frequency ON : OFF = 1 s : 9 s]
Form A contact:
Min. 50x103 ope. 63 A 277 V AC
Min. 30x103 ope. 70 A 277 V AC
Min. 10x103 ope. 80 A 277 V AC
Form B contact:
Min. 100x103 ope. 0.5 A 30 V DC
Min. 100x103 ope. 1 A 277 V AC
AHER4192
Single side stable
24 V DC
4 Form A 1 Form B
Flux-resistant
PC board terminal
Carton
10
50
Max. 75% V of rated coil voltage (Initial)
Min. 5% V of rated coil voltage (Initial)
167 mA
144.0 Ω
4,000 mW
Holding: 490 mW
(at 55°C)
110% V of rated coil voltage
Form A contact:
Max. 10 mΩ (by voltage drop 6 V DC 20 A after 3 min.)
Max. 3 mΩ (by voltage drop 6 V DC 50 A, reference value)
Form B contact: Max. 100 mΩ (by voltage drop 6 V DC 1 A)
Form A contact: AgSnO2 type
Form B contact: Au-planted AgNi type
Form A contact: 40 A 480 V AC
Form B contact: 1 A 277 V AC, 0.5 A 30 V DC
Form A contact: 19,200 VA
Form B contact: 277 VA, 15 W
Form A contact: 480 V AC
Form B contact: 277 V AC, 30 V DC
Form A contact: 50 A
Form B contact: 1 A
Form A contact: 100 mA 24 V DC
Form B contact: 10 mA 5 V DC
Min. 1,000 MΩ (at 500 V DC, Measured portion is the same as the case of dielectric strength)
5,000 Vrms for 1min (detection current: 10 mA)
10,000 V (Between Form A contact and coil)
2,500 V (Between Form B contact and coil)
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)
Max. 50 ms at rated coil voltage (without bounce)
Max. 30 ms at rated coil voltage (without bounce, without diode)
25 m/s2 (half-sine shock pulse: 11 ms, detection time: 10 µs)
980 m/s2 (half-sine shock pulse: 6 ms)
10 to 55 Hz (at double amplitude of 0.3 mm, detection time: 10 µs)
10 to 55 Hz (at double amplitude of 1.5 mm)
Min. 100x103 ope. (switching frequency: at 180 times/min)
Ambient temperature: -40 to +55°C
(When applied coil hold voltage is 35 to 110 % V of rated coil voltage.)

Ambient temperature: -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)
Approx. 180g
[switching frequency ON : OFF = 1 s : 9 s]
Form A contact:
Min. 30x103 ope. 40 A 480 V AC
Min. 50x103 ope. 32 A 277 V AC
Form B contact:
Min. 100x103 ope. 1 A 277 V AC
Min. 100x103 ope. 0.5 A 30 V DC
AHER1282
Single side stable
24 V DC
2 Form A
Flux-resistant
PC board terminal
Carton
10
50
Max. 75% V of rated coil voltage (Initial)
Min. 5% V of rated coil voltage (Initial)
167 mA
144.0 Ω
4,000 mW
Holding: 490 mW
(at 55°C)
110% V of rated coil voltage
Max. 10 mΩ (by voltage drop 6 V DC 20 A after 3 min.)
Max. 3 mΩ (by voltage drop 6 V DC 80 A, reference value)
AgNi type
80 A 277 V AC
22,160 VA
277 V AC
80 A
100 mA 24 V DC
Min. 1,000 MΩ (at 500 V DC, Measured portion is the same as the case of dielectric strength)
5,000 Vrms for 1min (detection current: 10 mA)
10,000 V (Between Form A contact and coil)
35 to 110% V (at -40 to +55°C, Form A contact: 80 A)
35 to 50% V (at -40 to +85°C, Form A contact: 70 A to 80 A)
Max. 50 ms at rated coil voltage (without bounce)
Max. 30 ms at rated coil voltage (without bounce, without diode)
25 m/s2 (half-sine shock pulse: 11 ms, detection time: 10 µs)
980 m/s2 (half-sine shock pulse: 6 ms)
10 to 55 Hz (at double amplitude of 0.3 mm, detection time: 10 µs)
10 to 55 Hz (at double amplitude of 1.5 mm)
Min. 100x103 ope. (switching frequency: at 180 times/min)
Ambient temperature: -40 to +55°C
(When applied coil hold voltage is 35 to 110 % V of rated coil voltage.)

Ambient temperature: -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)
Approx. 180g
[switching frequency ON : OFF = 1 s : 9 s]
Min. 50x103 ope. 63 A 277 V AC
Min. 30x103 ope. 70 A 277 V AC
Min. 10x103 ope. 80 A 277 V AC
AHER1281
Single side stable
12 V DC
2 Form A
Flux-resistant
PC board terminal
Carton
10
50
Max. 75% V of rated coil voltage (Initial)
Min. 5% V of rated coil voltage (Initial)
333 mA
36.0 Ω
4,000 mW
Holding: 490 mW
(at 55°C)
110% V of rated coil voltage
Max. 10 mΩ (by voltage drop 6 V DC 20 A after 3 min.)
Max. 3 mΩ (by voltage drop 6 V DC 80 A, reference value)
AgNi type
80 A 277 V AC
22,160 VA
277 V AC
80 A
100 mA 24 V DC
Min. 1,000 MΩ (at 500 V DC, Measured portion is the same as the case of dielectric strength)
5,000 Vrms for 1min (detection current: 10 mA)
10,000 V (Between Form A contact and coil)
35 to 110% V (at -40 to +55°C, Form A contact: 80 A)
35 to 50% V (at -40 to +85°C, Form A contact: 70 A to 80 A)
Max. 50 ms at rated coil voltage (without bounce)
Max. 30 ms at rated coil voltage (without bounce, without diode)
25 m/s2 (half-sine shock pulse: 11 ms, detection time: 10 µs)
980 m/s2 (half-sine shock pulse: 6 ms)
10 to 55 Hz (at double amplitude of 0.3 mm, detection time: 10 µs)
10 to 55 Hz (at double amplitude of 1.5 mm)
Min. 100x103 ope. (switching frequency: at 180 times/min)
Ambient temperature: -40 to +55°C
(When applied coil hold voltage is 35 to 110 % V of rated coil voltage.)

Ambient temperature: -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)
Approx. 180g
[switching frequency ON : OFF = 1 s : 9 s]
Min. 50x103 ope. 63 A 277 V AC
Min. 30x103 ope. 70 A 277 V AC
Min. 10x103 ope. 80 A 277 V AC
AHER2281
Single side stable
12 V DC
2 Form A 1 Form B
Flux-resistant
PC board terminal
Carton
10
50
Max. 75% V of rated coil voltage (Initial)
Min. 5% V of rated coil voltage (Initial)
333 mA
36.0 Ω
4,000 mW
Holding: 490 mW
(at 55°C)
110% V of rated coil voltage
Form A contact:
Max. 10 mΩ (by voltage drop 6 V DC 80 A after 3 min.)
Max. 3 mΩ (by voltage drop 6 V DC 50 A, reference value)
Form B contact: Max. 100 mΩ (by voltage drop 6 V DC 1 A)
Form A contact: AgNi type
Form B contact: Au planted AgNi type
Form A contact: 80 A 277 V AC
Form B contact: 1 A 277 V AC, 0.5 A 30 V DC
Form A contact: 22,160 VA
Form B contact: 277 VA, 15 W
Form A contact: 277 V AC
Form B contact: 277 V AC, 30 V DC
Form A contact: 80 A
Form B contact: 1 A
Form A contact: 100 mA 24 V DC
Form B contact: 10 mA 5 V DC
Min. 1,000 MΩ (at 500 V DC, Measured portion is the same as the case of dielectric strength)
5,000 Vrms for 1min (detection current: 10 mA)
10,000 V (Between Form A contact and coil)
2,500 V (Between Form B contact and coil)
35 to 110% V (at -40 to +55°C, Form A contact: 80 A)
35 to 50% V (at -40 to +85°C, Form A contact: 70 A to 80 A)
Max. 50 ms at rated coil voltage (without bounce)
Max. 30 ms at rated coil voltage (without bounce, without diode)
25 m/s2 (half-sine shock pulse: 11 ms, detection time: 10 µs)
980 m/s2 (half-sine shock pulse: 6 ms)
10 to 55 Hz (at double amplitude of 0.3 mm, detection time: 10 µs)
10 to 55 Hz (at double amplitude of 1.5 mm)
Min. 100x103 ope. (switching frequency: at 180 times/min)
Ambient temperature: -40 to +55°C
(When applied coil hold voltage is 35 to 110 % V of rated coil voltage.)

Ambient temperature: -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)
Approx. 180g
[switching frequency ON : OFF = 1 s : 9 s]
Form A contact:
Min. 50x103 ope. 63 A 277 V AC
Min. 30x103 ope. 70 A 277 V AC
Min. 10x103 ope. 80 A 277 V AC
Form B contact:
Min. 100x103 ope. 0.5 A 30 V DC
Min. 100x103 ope. 1 A 277 V AC
AHER3192
Single side stable
24 V DC
4 Form A
Flux-resistant
PC board terminal
Carton
10
50
Max. 75% V of rated coil voltage (Initial)
Min. 5% V of rated coil voltage (Initial)
167 mA
144.0 Ω
4,000 mW
Holding: 490 mW
(at 55°C)
110% V of rated coil voltage
Max. 10 mΩ (by voltage drop 6 V DC 20 A after 3 min.)
Max. 3 mΩ (by voltage drop 6 V DC 50 A, reference value)
AgSnO2 type
40 A 480 V AC
19,200 VA
480 V AC
50 A
100 mA 24 V DC
Min. 1,000 MΩ (at 500 V DC, Measured portion is the same as the case of dielectric strength)
5,000 Vrms for 1min (detection current: 10 mA)
10,000 V (Between Form A contact and coil)
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)
Max. 50 ms at rated coil voltage (without bounce)
Max. 30 ms at rated coil voltage (without bounce, without diode)
25 m/s2 (half-sine shock pulse: 11 ms, detection time: 10 µs)
980 m/s2 (half-sine shock pulse: 6 ms)
10 to 55 Hz (at double amplitude of 0.3 mm, detection time: 10 µs)
10 to 55 Hz (at double amplitude of 1.5 mm)
Min. 100x103 ope. (switching frequency: at 180 times/min)
Ambient temperature: -40 to +55°C
(When applied coil hold voltage is 35 to 110 % V of rated coil voltage.)

Ambient temperature: -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)
Approx. 180g
[switching frequency ON : OFF = 1 s : 9 s]
Min. 30x103 ope. 40 A 480 V AC
Min. 50x103 ope. 32 A 277 V AC
AHER4191
Single side stable
12 V DC
4 Form A 1 Form B
Flux-resistant
PC board terminal
Carton
10
50
Max. 75% V of rated coil voltage (Initial)
Min. 5% V of rated coil voltage (Initial)
333 mA
36.0 Ω
4,000 mW
Holding: 490 mW
(at 55°C)
110% V of rated coil voltage
Form A contact:
Max. 10 mΩ (by voltage drop 6 V DC 20 A after 3 min.)
Max. 3 mΩ (by voltage drop 6 V DC 50 A, reference value)
Form B contact: Max. 100 mΩ (by voltage drop 6 V DC 1 A)
Form A contact: AgSnO2 type
Form B contact: Au planted AgNi type
Form A contact: 40 A 480 V AC
Form B contact: 1 A 277 V AC, 0.5 A 30 V DC
Form A contact: 19,200 VA
Form B contact: 277 VA, 15 W
Form A contact: 480 V AC
Form B contact: 277 V AC, 30 V DC
Form A contact: 50 A
Form B contact: 1 A
Form A contact: 100 mA 24 V DC
Form B contact: 10 mA 5 V DC
Min. 1,000 MΩ (at 500 V DC, Measured portion is the same as the case of dielectric strength)
5,000 Vrms for 1min (detection current: 10 mA)
10,000 V (Between Form A contact and coil)
2,500 V (Between Form B contact and coil)
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)
Max. 50 ms at rated coil voltage (without bounce)
Max. 30 ms at rated coil voltage (without bounce, without diode)
25 m/s2 (half-sine shock pulse: 11 ms, detection time: 10 µs)
980 m/s2 (half-sine shock pulse: 6 ms)
10 to 55 Hz (at double amplitude of 0.3 mm, detection time: 10 µs)
10 to 55 Hz (at double amplitude of 1.5 mm)
Min. 100x103 ope. (switching frequency: at 180 times/min)
Ambient temperature: -40 to +55°C
(When applied coil hold voltage is 35 to 110 % V of rated coil voltage.)

Ambient temperature: -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)
Approx. 180g
[switching frequency ON : OFF = 1 s : 9 s]
Form A contact:
Min. 30x103 ope. 40 A 480 V AC
Min. 50x103 ope. 32 A 277 V AC
Form B contact:
Min. 100x103 ope. 1 A 277 V AC
Min. 100x103 ope. 0.5 A 30 V DC

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