943 Series Relay
FEATURES
● Subminiature ”sugar cube” relay with universal terminal footprint
● Tracking resistance: CTI>250 available
● Surge voltage 4,500V
● UL & TUV safety approval.
● TV-5 rated available.
● UL Class F (155℃) coil insulation type available.
● Nominal power 360 mw.
● Operating power 200 mw
● Heavy current up to 15 Amps.
● Dielectric Strength (coil contact) 3KV available.
UL FILE NO: E162117
TUV FILE NO: R50048093
CQC FILE NO: CQC02001001785
VDE : In Process
CONTACT RATINGS
●Contact Arrangement .......... 1 Form A (SPST-NO)
........... 1 Form C (SPDT)
●Max. Switching Power........ 1750VA 210W
●Max. Switching Voltage...... 250VAC 30VDC
●Max. Switching Current...... 15A
●Contact Resistance .............. ≤100mΩ(initial value)
●Resistive Load
1 Form A........................15A/125VAC 12A/125VAC
7A/250VAC/30VDC(UL Rated)
1 Form C……………… 12A/125VAC
……7A/250VAC /30VDC(UL Rated)
…… 6A/250VAC/30VDC
●Pilot Duty Load…………1.5A Break 5.4A Inrush/277VAC
●Horse Power Load...........FLA 5.8A / LRA 34.8A 240VAC
●TV Rating ........................TV-5 (SPST- NO ONLY)
●Contact Material ..............Ag Alloy
CHARACTERISTICS
●Electrical Life………….…….1×105 (6A250VAC/30VDC)
●Mechanical Life……………...1×107
●Contact Resistance (Initial)….≤100mΩ
●Operate Time………………...≤10ms
●Release Time…………..….…≤5ms
●Insulation Resistance………...Min. 1,000MΩ 500VDC
●Dielectric Strength
............................... 50/60Hz 750VAC 1 min. (between open contacts)
……………………50/60Hz 1500VAC 1 min. (between contacts and coil)
●Surge Strength......................... 4,500V(1.2X50μs)between contact and coil
●Vibration Resistance………… Malfunction: 10 to 55Hz at Double Amplitude of 1.5mm
…………Destructive: 10 to 55Hz at Double Amplitude of 1.5mm
●Shock Resistance….……….... Malfunction: 10G (11ms) / Destructive: 100G (6ms)
●Ambient Temperature….…….-35℃~+85℃
●Relative Humidity…………….85% at 40℃
●Unit Weight…………………...Approx. 10g
27
ORDERING INFORMATION
943 1
1A
2
-12
3
D
4
S
5
Enclosure………………..….. S = Sealed Type
Coil Type………………..…...D: DC
Coil Voltage………………….3~48V
Contact Arrangement………..1A = 1 Form A (SPST-NO)
..………..1C = 1 Form C (SPDT)
Model Number ……………...943
COIL RATINGS (at 20℃)
COIL
TYPE
DC
Standard Coils
Coil Nominal
Voltage (V)
Coil
Resistance
(Ω±10%)
Pick-Up
Voltage (V)
≤
Drop-Out
Voltage (V)
≥
Nominal
Current
(mA)
3
25
2.25
0.3
120
5
70
3.75
0.5
71
6
100
4.5
0.6
60
9
225
6.75
0.9
40
12
400
9
1.2
30
18
900
13.5
1.8
20
24
1600
18
2.4
15
48
6400
36
4.8
7.5
* Max Continuous Voltage at 20℃: 130% of Coil Nominal Voltage.
OUTLINE DIMENSIONS
Dimensions
Internal Connections
(Bottom View)
REMARK: Tolerance of outline dimensions: ±0.3(.012).
UNIT:mm (inch)
28
Drilling Plan
(Bottom View)
943 Referential Data
Coil Temperature Rise
Timing
80
Temperature Rise(℃)
8
Operate
6
4
Release
60
40
20
10
2
0
0.1
0.1 0.2 0.3 0.4 0.5 0.6 0.8 1.0 1.2 1.4
0.2
Coil Power(W)
0.3
0.4
0.5
0.6
Coil Power(W)
Maximum Switching Power
Life Curve
100
10
Operation(x10,000)
AC
Resistive
15
Contact Current(A)
Time(ms)
10
DC
Resistive
5
3
0
10
20
30 4050
100 200
50
120VAC Resistive
30
240VAC Resistive
10
5
300
0
Contact Voltage(V)
2
4
6
8
10 12 14 16 18 20
Contact Current(A)
29
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