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DW Relays

Coil data

  • Operating characteristics such as 'Operate voltage' and 'Release voltage' are influenced by mounting conditions, 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.

1.1 coil latching type

Rated coil
voltage
Set voltage*
(at 20°C)
Reset voltage*
(at 20°C)
Rated operating
current
(±10%, at 20°C)
Coil resistance
(±10%, at 20°C)
Rated operating
power
Max. applied
voltage
(at 20°C)
3 V DC Max. 80% V
of rated coil
voltage
(Initial)
Max. 80% V
of rated coil
voltage
(Initial)
66.7 mA 45 Ω 200 mW 110% V of
rated coil voltage
5 V DC 40 mA 125 Ω
6 V DC 33.3 mA 180 Ω
9 V DC 22.2 mA 405 Ω
12 V DC 16.7 mA 720 Ω
24 V DC 8.3 mA 2,880 Ω
*square, pulse drive

2.2 coil latching type

Rated coil voltage Set voltage*
(at 20°C)
Reset voltage*
(at 20°C)
Rated operating
current
(±10%, at 20°C)
Coil resistance
(±10%, at 20°C)
Rated operating
power
Max. applied
voltage
(at 20°C)
Set
coil
Reset
coil
Set
coil
Reset
coil
Set
coil
Reset
coil
3 V DC Max. 80% V of rated coil voltage (Initial) Max. 80% V of rated coil voltage (Initial) 133.3 mA 133.3 mA 22.5 Ω 22.5 Ω 400 mW 400 mW 110% V of rated coil voltage
5 V DC 80 mA 80 mA 62.5 Ω 62.5 Ω
6 V DC 66.7 mA 66.7 mA 90 Ω 90 Ω
9 V DC 44.4 mA 44.4 mA 202.5 Ω 202.5 Ω
12 V DC 33.3 mA 33.3 mA 360 Ω 360 Ω
24 V DC 16.7 mA 16.7mA 1,440 Ω 1,440 Ω
*square, pulse drive

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Specifications

Item Specifications
Standard type (8 A) Inrush type (16 A)
Contact data Contact arrangement 1 Form A
Contact resistance (initial) Max. 100 mΩ (by voltage drop 6 V DC 1 A)
Contact material AgSnO2 type
Contact rating
(resistive)
8 A 250 V AC 16 A 277 V AC
Max. switching power (resistive) 2,000 VA 4,432 VA
Max. switching voltage 250 V AC 277 V AC
Max. switching current 8 A (AC) 16 A (AC)
Min. switching load
(reference value) *1
100 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 contacts
1,000 Vrms for 1 min. (Detection current: 10 mA)
Between
contact and coil
5,000 Vrms for 1 min. (Detection current: 10 mA)
Surge withstand voltage (initial)*2 Between
contact and coil
12,000 V
Time
characteristics
(initial)
Set time Max. 15 ms at rated coil voltage (at 20°C, without bounce)
Reset time Max. 15 ms at rated coil voltage (at 20°C, without bounce)
Shock
resistance
Functional 100 m/s2 (half-sine shock pulse: 11 ms, detection time: 10 μs)
Destructive 1,000 m/s2 (half-sine shock pulse: 6 ms)
Vibration resistance Functional 10 to 55 Hz (at double amplitude of 2 mm, detection time: 10 μs)
Destructive 10 to 55 Hz (at double amplitude of 3 mm)
Expected life Mechanical life Min. 106 ope. (switching frequency: at 180 times/min)
Conditions Conditions for usage,
transport and storage
*3
Ambient temperature: -40 to +85°C
(-40 to +70°C at our standard
packing condition)
Humidity: 5 to 85% RH
(Avoid icing and condensation)
Ambient temperature: -40 to +70°C
(Over 8 A to 16 A)
(-40 to +70°C at our standard
packing condition),
-40 to +85°C (Max. 8 A)
Humidity: 5 to 85% RH
(Avoid icing and condensation)
Unit weight Approx. 8 g (Low profile type: Approx. 7.5 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
*3For ambient temperature, please read "GUIDELINES FOR RELAY USAGE".

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Expected electrical life

Conditions: Switching frequency at 20 times/min

Type Switching capacity Number of operations
Standard type
(8 A)
Resistive load: Type 8 A 250 V AC Min. 50 x 103 ope.
Resistive load:
IEC60335-1 compliant type
5 A 250 V AC Min. 100 x 103 ope.
Inrush type
(16 A)
Resistive load 8 A 250 V AC Min. 50 x 103 ope.
16 A 277 V AC Min. 20 x 103 ope.
(switching frequency ON : OFF = 1 s : 5 s)
Tungsten load Inrush current 100 A 600 W 120 V AC Min. 25 x 103 ope.
(switching frequency ON : OFF = 1 s : 59 s)

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