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
Pending
UL CSA VDE
Pending Pending
K
204
ORDERING INFORMATION
2EBP
24V
1KEx.
Contact arrangement Type classigication Terminal Coil (DC) Sensitivity
2: 2 Form C
4: 4 Form C
6: 6 Form C
EB: Amber sealed type
Nil: Plug-in, solder
terminal
P: PC board
terminal
3 to 110 V
Nil: High sensitivity relays
1: Ordinary sensitive
relays
(Notes) 1. Other coil and contact specifications are available on request for orders of more than 1,000 pcs.
(Notes) 1. Please state: Required coil resistance Gold clad/Gold clad contacts
(Notes) 2. For UL/CSA or VDE recognized types, and suffix UL/CSA or VDE.
(Notes) 3. Standard packing Carton: 20 pcs. Case: 200 pcs.
TYPICAL APPLICATIONS
Typical applications include:
Systems and equipment requiring higher reliability, Severe environmental uses, Alarm devices, Office machines, Telecommunication equipment, Pollution control equipment
TYPES AND COIL DATA
* Less than 1,000 Ω : ±10% More than 1,000 Ω : ±15%
Part No. Coil voltage (V)
Coil
resistance*
( Ω at 20°C)
Nominal
coil power
(mW)
Inductance (H)
Plug-in and Solder For PC board
Nominal
(DC)
Pick-up
(max. at
20°C)
Drop-out
(min. at
20°C)
Max.
allowable
voltage,
(at 40°C)
Armature
Closed Open
2 Form C
K2EB-3V-1 K2EBP-3V-1 3 1.8 0.27 6.7 28 320 0.52 0.26
K2EB-6V-1 K2EBP-6V-1 6 3.9 0.58 12.0 110 330 2.1 1.1
K2EB-12V-1 K2EBP-12V-1 12 8.0 1.2 30.0 530 270 11 5.6
K2EB-24V-1 K2EBP-24V-1 24 16.5 2.5 47.0 1,700 340 35 18
K2EB-42V-1 K2EBP-42V-1 42 30.0 4.5 72.0 5,300 333 95 48
K2EB-48V-1 K2EBP-48V-1 48 39.0 5.9 100.0 7,600 300 120 62
K2EB-110V-1 K2EBP-110V-1 110 60.0 9.0 180.0 16,000 760 270 138
4 Form C
K4EB-3V-1 K4EBP-3V-1 3 2.3 0.35 5.0 18 500 0.36 0.18
K4EB-6V-1 K4EBP-6V-1 6 4.2 0.63 9.0 58 620 1.0 0.5
K4EB-12V-1 K4EBP-12V-1 12 8.7 1.3 18.5 250 580 5.2 2.6
K4EB-24V-1 K4EBP-24V-1 24 18.0 2.7 35.0 890 650 15 7.5
K4EB-28V-1 K4EBP-28V-1 28 19.0 2.85 33.0 1,100 713 20 11
K4EB-48V-1 K4EBP-48V-1 48 36.0 5.4 64.0 3,200 720 54 28
K4EB-110V-1 K4EBP-110V-1 110 85.0 12.8 160.0 16,000 760 270 138
6 Form C
K6EB-6V 6 4.2 0.63 6.6 28 1,286 0.52 0.26
K6EB-12V 12 8.4 1.26 13.2 110 1,309 2.1 1.1
K6EB-24V 24 16.8 2.52 26.4 440 1,309 8.3 4.2
K6EB-48V 48 33.6 5.04 52.8 1,700 1,355 35 18
K6EB-60V 60 42.0 6.3 66.0 2,800 1,286 44 23
K6EB-110V 110 77.0 11.55 121.0 10,000 1,210 164 84
REFERENCE DATA
1. Life curve 2. Coil temperature rise (resistance method) 3. H
2
S gas test (1,000 ppm)
1,000
100
10
2,000
30 V DC
12345
Current, A
No. of operations ×10
4
L
R
= 7 ms
L
R
= 0
60
40
20
80
0.5 1.0 1.5 2.0
Operating power, W
Coil temperature rise, °C
20
30
40
50
100
200
300
400
801624324048
Exposure time, hrs.
Contact resistance, mΩ
Sealed KE relay (Au/Ag contact)
K
205
DIMENSIONS
mm inch
2 Form C
4 Form C
6 Form C
Plug-in terminal
(K2EB)
PC board terminal
(K2EBP)
Plug-in terminal
(K4EB)
PC board terminal
(K4EBP)
Plug-in terminal
(K6EB)
(N.O.)
(N.C.)
30
1.181
6
.236
4
.157
GROUND STUD
(3-48 NC-2A)
11.6
.457
10.5
.413
3.5
.138
13.7
.539
9
.354
19
.748
5.2
.205
2.7
.106
23.6
.929
Tolerance:
±0.3 ±.012
(N.O.)
(N.C.)
30
1.181
4
.157
12.5
.492
10
.394
2.5
.098
2
.079
19
.748
2.5
.098
23.6
.929
PC board pattern
(Copper-side view)
2.5
.098
2.5
.098
For
grounding
1.3 DIA.
.051 DIA.
(N.O.)
(N.C.)
(N.O.)
(N.C.)
30
1.181
6
.236
4
.157
11.6
.457
10.5
.413
3.5
.138
13.7
.539
9
.354
19
.748
5.2
.205
2.7
.106
29.4
1.157
GROUND STUD
(3-48 NC-2A)
Tolerance:
±0.3 ±.012
(N.O.)
(N.C.)
(N.O.)
(N.C.)
30
1.181
4
.157
12.5
.492
10
.394
2.5
.098
2
.079
19
.748
2.5
.098
2.5
.098
29.4
1.157
PC board pattern
(Copper-side view)
2.5
.098
2.5
.098
For
grounding
1.3 DIA.
.051 DIA.
General tolerance: ±0.5 ±.020
(N.O.)
(N.C.)
(N.O.)
(N.C.)
(N.O.)
(N.C.)
30
1.181
6
.236
4
.157
11.6
.457
10.5
.413
3.5
.138
13.7
.539
9
.354
19
.748
5.2
.205
2.7
.106
34.8
1.370
GROUND STUD
(3-48 NC-2A)
K
206
ACCESSORIES
mm inch
Solder terminal sockets (with hold-down clip)
mm inch
K2-SS
2 Form C
(for K2EB)
K4-SS
4 Form C
(for K4EB)
K6-SS
6 Form C
(for K6EB)
9
.354
1
.039
1
.039
24.2
.953
10.8
.425
15
.591
6.4
.252
10
.394
19
.748
23.6
.929
35
1.378
31
1.220
0.8
.031 DIA.
13
.512
9
.354
1
.039
1
.039
30
1.181
10.8
.425
19
.748
15
.591
6.4
.252
10
.394
29.4
1.157
35
1.378
31
1.220
0.8
.031 DIA.
13
.512
9
.354
1
.039
1
.039
35.4
1.394
10.8
.425
19
.748
15
.591
6.4
.252
10
.394
13
.512
34.8
1.370
35
1.378
31
1.220
0.8
.031 DIA.
PC board terminal sockets (with hold-down clip)
General tolerance: ±1 ±.039
K2-PS
2 Form C
(for K2EB)
K4-PS
4 Form C
(for K4EB)
K6-PS
6 Form C
(for K6EB)
1
.039
1
.039
24.2
.953
10
.394
19
.748
13.5
.531
8.5
.335
9.5
.374
23.6
.929
35
1.378
31
1.220
0.8
.031 DIA.
13
.512
PC BOARD PATTERN
(Copper-side view)
2.5
.098
2.5
.098
For
grounding
1.3 DIA.
.051 DIA.
1
.039
1
.039
30
1.181
10
.394
19
.748
13.5
.531
8.5
.335
9.5
.374
29.4
1.157
35
1.378
31
1.220
0.8
.031 DIA.
13
.512
PC BOARD PATTERN
(Copper-side view)
2.5
.098
2.5
.098
For
grounding
1.3 DIA.
.051 DIA.
1
.039
1
.039
35.4
1.394
10
.394
19
.748
13.5
.531
8.5
.335
9.5
.374
13
.512
34.8
1.370
35
1.378
31
1.220
0.8
.031 DIA.
PC BOARD PATTERN
(Copper-side view)
2.5
.098
2.5
.098
For
grounding
1.3 DIA.
.051 DIA.
K
207
MOUNTING DIMENSIONS
mm inch
Plug-in socket mounting
General tolerance: ±0.5 ±.020 Tolerance: ±0.1 ±.004
30
1.181
3.6
.142
5
.197
6.4
.252
38.8±1
1.528
20
.787
17
.669
9
.354
7
.275
3.7
.146
7.2
.283
(b)
(a)
(a)
K2: 8.5 .335
K4: 14 .551
K6: 19.5 .768
(b)
K2: 26 1.024 MIN.
K4: 31.8 1.252 MIN.
K6: 37.2 1.465 MIN.
MIN.
FLAT WASHER
MOUNTING SCREW
(2.3mm × 10 or
3-48NC-2A)
MOUNTING PANEL
SOCKET FOR K RELAY
MAX. THICKNESS
IS TO BE KEPT LESS THAN
K RELAY (2. 4. 6C)
HOLD-DOWN CLIP
LOCK WASHER
3mm.
19
.748
2-3 HOLE
2-.118 DIA.
For Cautions for Use, see Relay Technical Information (Page 48 to 76).
9/1/2000 All Rights Reserved, © Copyright Matsushita Electric Works, Ltd.
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