7274-4-4 [TI]
4 A, 120 V(AC), 28 V(DC), PANEL MOUNT, THERMAL CIRCUIT BREAKER;
| 型号： | 7274-4-4 |
| 厂家： | 
TEXAS INSTRUMENTS |
| 描述： | 4 A, 120 V(AC), 28 V(DC), PANEL MOUNT, THERMAL CIRCUIT BREAKER 电路保护 |
| 文件： | 总2页 (文件大小：431K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
7274 Series Circuit Breakers
Low Amperage, High Performance
Features
• Uses minimum space
• Light weight
• Ratings: 1/2 – 20 amperes
• Military approved
7274-4
7274-11 and 7274-69
7274-2
Overview
Sensata Number
MS Number
Sensata Number
MS Number
1
1
1
1
7274-2- ⁄
2
MS 26574- ⁄
2
7274-4- ⁄
2
MS 26574- ⁄
2A
The 7274 series are small, light
weight, low amperage devices that
are speciꢀcally designed to
protect aircraft / aerospace cable
such as ꢁat ribbon, fused
multi-conductor tape and printed
circuit conductors now being used
in lighter weight power
3
3
3
3
7274-2- ⁄
4
MS 26574- ⁄
4
7274-4- ⁄
4
MS 26574- ⁄
4
A
7274-2-1
MS 26574-1
7274-4-1
MS 26574-1A
1
1
1
1
7274-2-1 ⁄
2
MS 26574-1 ⁄
2
7274-4-1 ⁄
2
MS 26574-1 ⁄
2A
7274-2-2
MS 26574-2
7274-4-2
MS 26574-2A
1
1
1
1
7274-2-2 ⁄
2
MS 26574-2 ⁄
2
7274-4-2 ⁄
2
MS 26574-2 ⁄
2A
7274-2-3
7274-2-4
7274-2-5
MS 26574-3
MS 26574-4
MS 26574-5
7274-4-3
7274-4-4
7274-4-5
MS 26574-3A
MS 26574-4A
distribution systems and compo-
nents in airborne vehicles and
equipment.
MS 26574-5A
1
1
1
1
7274-2-7 ⁄
2
MS 26574-7 ⁄
2
7274-4-7 ⁄
2
MS 26574-7 ⁄
2A
7274-2-10
7274-2-15
7274-2-20
The 7274 series features a trip-
free indicating-type reset button.
Also, a “wiping action” contact
design assures low voltage drop,
faster trip time and high reliability
in low voltage applications. They
are available in standard ratings
from 1/2 – 20 amps.
MS 26574-10
N/A
7274-4-10
7274-4-15
7274-4-20
MS 26574-10A
N/A
N/A
N/A
Sensata Number
MS Number
Sensata Number
MS Number
1
1
1
1
7274-11- ⁄
2
MS 22073- ⁄
2
7274-69- ⁄
2
MS 22073- ⁄
2
V
V
3
3
3
3
7274-11- ⁄
4
MS 22073- ⁄
4
7274-69- ⁄
4
MS 22073- ⁄
4
7274-11-1
MS 22073-1
7274-69-1
MS 22073-1V
A water resistant panel seal*
designed to ꢀt over the push
button actuator is available for
applications that require this type
of protection.
1
1
1
1
7274-11-1 ⁄
2
MS 22073-1 ⁄
2
7274-69-1 ⁄
2
MS 22073-1 ⁄
2
V
7274-11-2
MS 22073-2
7274-69-2
MS 22073-2V
1
1
1
1
7274-11-2 ⁄
2
MS 22073-2 ⁄
2
7274-69-2 ⁄
2
MS 22073-2 ⁄
2
V
7274-11-3
7274-11-4
7274-11-5
MS 22073-3
MS 22073-4
MS 22073-5
7274-69-3
7274-69-4
7274-69-5
MS 22073-3V
MS 22073-4V
Options
MS 22073-5V
Long push buttons
Auxiliary switch
1
1
1
1
7274-11-7 ⁄
2
MS 22073-7 ⁄
2
7274-69-7 ⁄
2
MS 22073-7 ⁄
2
V
7274-11-10
7274-11-15
7274-11-20
MS 22073-10
N/A
7274-69-10
7274-69-15
7274-69-20
MS 22073-10V
Waterproof panel seal
High vibration
N/A
N/A
N/A
* Part number 14500-1 fits 7274-11 and other types
with 15/32” mounting bushing.
7274-70 Qualified to MS 26547L for ratings 1/2 amp to 10 amp.
14500-5 fits 7274-2 (7/16”).
7274
Characteristics
7274-11 and 7274-69
7274-2 and 7274-4
Panel Mounting
.125 .005 Dia.
Panel Mounting
.125 .005 Dia.
3 AMP RATING SHOWN
.718
.472
3 AMP RATING SHOWN
.744
.388
.032
.750
.203
.750
.562
.390
.093
.485
.005 Dia.
.375
.005
.445
.005 Dia.
.375
.005
.562
.562
.445
.032
.110
.078
.078
.419
KEYWAY WASHER DETAIL
.410
DIA.
PUSH PULL BUTTON POSITION WITH
CIRCUIT BREAKER TRIPPED (OFF)
KEYWAY WASHER DETAIL
PUSH PULL BUTTON POSITION WITH
CIRCUIT BREAKER TRIPPED (OFF)
.100
.480
7/16-32NS-2 THREAD
MOUNTING NUT
.100
.255
.250
15/32-32NS-2 THREAD
.440
MOUNTING NUT
LOCK WASHER
.213
.359
LOCK WASHER
KEYWAY WASHER
BACK-UP NUT
.191
.277 MAX.
.191
1.707
1.302
KEYWAY WASHER
1.450
LOCK WASHER
1.115
PHILLIPS RECESS
PAN HEAD SCREW
PHILLIPS RECESS
PAN HEAD SCREW
LOCK WASHER
.050 DIA
HOLE
o
o
45
AUXILIARY TERMINAL 7274-4 ONLY
45
.703
.593
#8–32 UNC SCREWS
#6–32 UNC SCREWS
Calibration: 1/2–20 amps
10 G’s minimum, 50-500 Hz
35 G’s
Vibration* .....................................
Mechanical Shock ........................
Acceleration .................................
Weight ..........................................
Trip Time – Seconds
Min ULT
Trip
Temp
Max ULT
Trip
10 G’s minimum
o
C
200%
2-20
–
1000%
.046-.8
–
–
500%
.16-1.2
–
–
7274-2: 28 gm max.
7274-4: 28 gm max.
7274-11: 33 gm max.
7274-69: 33 gm max.
115%
135%
90%
+25
-55
+71
150%
180%
130%
–
Interrupt Current
1/2 - 5 amps: unlimited at 28 VDC
1
7 ⁄
2
- 15 amps: 2000 amps at 28 VDC
1
Voltage Drop
(Max.)**
1/2 - 1 ⁄
2
amps: 800 amps at 120 VAC, 400 Hz
Sensata Number
2 - 5 amps: 800 amps at 120 VAC, 400 Hz
1
7 ⁄
2
- 20 amps: 500 amps at 120 VAC, 400 Hz
1
2.00
1.45
1.10
0.75
0.75
0.70
0.55
0.45
0.35
0.30
0.28
0.25
0.25
7274-XX- ⁄
2
3
7274-XX- ⁄
4
Endurance
7274-XX-1
1
2500 cycles ................................. 120 VAC, 400 Hz Inductive
5000 cycles ................................. 120 VAC, 400 Hz Resistive
2500 cycles ................................. 30 VDC, Inductive
5000 cycles ................................. 30 VDC, Resistive
5000 cycles ................................. Mechanical, no load
7274-XX-1 ⁄
2
7274-XX-2
1
7274-XX-2 ⁄
2
7274-XX-3
7274-XX-4
7274-XX-5
* Other vibration levels available. Contact factory for details.
1
7274-XX-7 ⁄
2
7274-XX-10
7274-XX-15
7274-XX-20
**Max voltage drop at nominal rated current.
Approximate Time-Current Curves 7274 Circuit Breakers
1000
100
10
o
UPPER LIMIT AT -55 C
180%
150%
115%
90%
o
LOWER LIMIT AT 71 C
0.01
0.1
1
10
100
1000
Trip Time in Seconds
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