■ Contact Ratings
Relay
Single contact
Inductive load Resistive load
Bifurcated contacts
2-pole
1-pole
2-, 3- or 4-pole
Load
Resistive load
(cosφ = 1)
Inductive load
(cosφ=0.4,
L/R=7 ms)
Resistive load
(cosφ = 1)
Inductive load
(cosφ=0.4,
L/R=7 ms)
(cosφ=0.4,
(cosφ = 1)
L/R=7 ms)
Rated load
110 VAC 15 A
24 VDC 15 A
110 VAC 10 A
24 VDC 7 A
110 VAC 10 A
24 VDC 10 A
110 VAC 7.5 A
24 VDC 5 A
110 VAC 5A
24 VDC 5 A
110 VAC 4 A
24 VDC 4A
Rated carry
current
15 A
10 A
7 A
Max.
switching
voltage
250 VAC
125 VDC
250 VAC
125 VDC
250 VAC
125 VDC
Max.
15 A
10 A
7 A
switching
current
Max.
switching
power
1,700 VA
360 W
1,100 VA
170 W
1,100 VA
240 W
825 VA
120 W
550 VA
120 W
440 VA
100 W
Failure rate
(reference
value)*
100 mA, 5 VDC
100 mA, 5 VDC
10 mA, 5 VDC
*Note: P level: λ60 = 0.1 x 10-6/operation, reference value
■ Characteristics
Item
All except Relays with bifurcated contacts
50 mΩ max.
Relays with bifurcated contacts
Contact resistance
Operate time
25 ms max.
Release time
25 ms max.
Max. operating frequency
Mechanical: 18,000 operations/hr
Electrical:
1,800 operations/hr (under rated load)
Insulation resistance
Dielectric strength
100 MΩ min. (at 500 VDC)
1,000 VAC, 50/60 Hz for 1 min between contacts of same polarity
2,000 VAC, 50/60 Hz for 1 min between contacts of different polarity
Vibration resistance
Shock resistance
Destruction: 10 to 55 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)
Malfunction: 10 to 55 to 10 Hz, 0.5 mm single amplitude (1.0 mm double amplitude)
Destruction: 1,000 m/s2
Malfunction: 200 m/s2
Endurance
Mechanical: AC: 50,000,000 operations min. (at 18,000 operations/hr)
DC: 1,00,000,000 operations min. (at 18,000 operations/hr)
Electrical:
Single-, three-, and four-pole: 200,000 operations min. (at 1,800 operations/hr
under rated load)
Double-pole: 500,000 operations min. (at 1,800 operations/hr under rated load)
Ambient temperature*
Operating:
Single- and double-pole standard, bifurcated-contact Relays: –25°C to 55°C (with no icing)
(–25°C to 70°C if carry current is 4 A or less)
All other Relays: –25°C to 40°C (with no icing) (–25°C to 55°C if carry current is 4 A or less)
Ambient humidity
Weight
Operating:
5% to 85%
Single- and double-pole: approx. 40 g, three-pole: approx. 50 g, four-pole: approx. 70 g
Note: 1. The values given above are initial values.
2. The upper limit of 40°C for some Relays is because of the relationship between diode junction temperature and the element used.
General-purpose Relay LY
81