A-48
General-purpose Relay
MK-I/-S
■
Contact Ratings
■
Characteristics
Note:
The data shown are initial values.
Load
Resistive load
(cos
φ
= 1)
Inductive load
(cos
φ
= 0.4)
Contact mechanism
Single
Contact material
Ag
Rated load
10 A at 250 VAC
10A at 28 VDC
7 A at 250 VAC
Rated carry current
10 A
Max. switching voltage
250 VAC, 250 VDC
Max. switching current
10 A
Max. switching power
2,500 VA, 280 W
1,750 VA
Contact resistance
50 m
Ω
max.
Operate time
AC: 20 ms max. DC: 30 ms max.
Release time
20 ms max.
Max. operating frequency
Mechanical:18,000 operations/hr
Electrical:1,800 operations/hr (under rated load)
Insulation resistance
100 M
Ω
min. (at 500 VDC)
Dielectric strength
2,500 VAC, 50/60 Hz for 1 min between coil and contacts;
1,000 VAC, 50/60 Hz for 1 min between contacts of same polarity, terminals of the same polarity;
2,500 VAC, 50/60 Hz fro 1 min between current-carrying parts, non-current-carrying parts, and termi-
nals of opposite polarity
Vibration resistance
Destruction:10 to 55 to 10 Hz, 0.75-mm single amplitude (1.5-mm double amplitude)
Malfunction:10 to 55 to 10 Hz, 0.5-mm single amplitude (1.0-mm double amplitude)
Shock resistance
Destruction:1,000 m/s
2
(approx. 100G)
Malfunction:100 m/s
2
(approx. 10G);
Endurance
Mechanical:10,000,000 operations min. (at operating frequency of 18,000 operations/hour)
Electrical:Refer to
Engineering Data
.
Error rate (reference value)
10 mA at 1 VDC
Ambient temperature
Operating:–10
°
C to 40
°
C (with no icing or condensation)
Ambient humidity
Operating: 5% to 85%
Weight
Approx. 85 g
