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LF 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.
Rated coil voltage Operate voltage*
(at 20°C)
Release voltage*
(at 20°C)
Rated operating
current
(±10%, at 20°C)
Coil resistance
(±10%, at 20°C)
Rated operating
power
Max. allowable
voltage
(at 60°C)
5 V DC Max. 70% V
of rated
coil voltage
(Initial)
Min. 10% V
of rated
coil voltage
(Initial)
180 mA 27.8 Ω 900 mW 110% V
of rated coil
voltage
6 V DC 150 mA 40 Ω
9 V DC 100 mA 90 Ω
12 V DC 75 mA 160 Ω
18 V DC 50 mA 360 Ω
24 V DC 37.5 mA 640 Ω

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Specifications

Item Specifications
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)
20 A 250 V AC
Max. switching power
(resistive)
6,250 VA
Max. switching voltage 250 V AC
Max. switching current 25 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
10,000 V
Time
characteristics
(initial)
Operate time Max. 20 ms at rated coil voltage (at 20°C, without bounce)
Release time Max. 15 ms at rated coil voltage (at 20°C, without bounce, with diode)
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 1.5 mm, detection time: 10 μs)
Destructive 10 to 55 Hz (at double amplitude of 1.5 mm)
Expected life Mechanical life Min. 2 x 106 ope. (switching frequency: at 180 times/min)
Conditions Conditions for usage,
transport and storage
*3
Ambient temperature: -40 to +60°C
Humidity: 5 to 85% RH (Avoid icing and condensation)
Unit weight Approx. 23 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: at 20°C

Type Load Switching capacity Number of operations
1 Form A Resistive load 20 A 250 V AC (cosφ = 1) Min. 100 x 103 ope.
(switching frequency at 20 times/min)
25 A 250 V AC (cosφ = 1) Min. 10 x 103 ope.
(switching frequency at 20 times/min)
Compressor load Inrush 70 A (cosφ = 0.7), Steady 20 A (cosφ = 0.9)
250 V AC
Min. 100 x 103 ope.
(switching frequency at 20 times/min)
Inverter load Inrush 200 A, Steady 20 A
100 V AC
Min. 30 x 103 ope.
(switching frequency at 10 times/min)
Inrush 100 A, Steady 10 A
200 V AC
Min. 30 x 103 ope.
(switching frequency at 10 times/min)

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