203
K-RELAYS
UNIQUELY DESIGNED RELAY
mm inch
30
1.181
19
.748
a
a
K2EB 23.6 0.929
K4EB 29.4 1.157
K6EB 34.8 1.370
FEATURES
• 100 times more reliable than similar designs
• Extra long life — Mechanical: more than 10
8
operations
Electrical (1 A 30 V): more than 10
6
operations
• Versatile range for all applications
Sealed construction Gold-clad bifurcated contacts
Low and stable contact resistance
Low level current switching possible
Plastic header
Epoxy sealing resin
Amber
plastic cover
Nickel silver
contact arm
Silver
Silver
Gold-clad
movable contact
Gold-clad stationary
contact
Highly reliable
bifurcated contacts
SPECIFICATIONS
Contacts Characteristics (at 20°C 68°F, 50% R.H.)
*
1
Excluding contact bounce time
*
2
Total temperature (temperature rise in coil plus ambient temperature) should be
kept less than max. 115°C 221°F
Arrangement 2, 4, 6 Form C
Rating
(resistive
load)
Max. switching
power
50 W, 100 VA
Max. switching
voltage
220 V AC DC
Max. switching
current
2A
Expected
life (min.
operations)
Mechanical 10
8
Electrical
(1 A 100 V AC)
10
6
Contact
material
(Bifurcated
contacts)
Movable contact Gold-clad silver
Stationary contact Gold-clad silver
Initial contact resistance, max.
(By voltage drop 6 V DC 1 A)
50 m Ω
Capacitance
Contact/Contact 3 pF
Contact/Ground 5 pF
Max. operating speed 50 cps.
Initial insulation resistance Min. 1,000 M Ω at 500 V DC
Initial
breakdown
voltage
Between open contacts,
contact sets
750 Vrms
Between live parts and
ground
750 Vrms
Between contacts and
coil
750 Vrms
Operate time*
1
(at nominal voltage)
Approx. 15 ms
Release time*
1
(at nominal voltage)
Approx. 5 ms
Vibration resistance
98 m/s
2
{10 G}, 10 to 55 Hz at
double amplitude of 1.6 mm
Shock resistance 98 m/s
2
{10 G}
Conditions for
operation, transport and storage
(Not freezing and
condensing at low
temperature)
Ambient
temperature*
2
2C, 4C: –40°C to +60°C –40°F to +140°F
6C: –40°C to +40°C –40°F to +104°F
Humidity 5 to 85% R.H.
Ambient pressure
101, 325 Pa ±20%
{1,013 mb ±20%}
Unit weight (approx.)
K2EB: 23 g .81 oz, K4EB: 27 g .95 oz,
K6EB: 30 g 1.06 oz