RSB-250 [RIEDON]
Precision Current / DC Current Shunts;
| 型号： | RSB-250 |
| 厂家： | 
RIEDON POWERTRON |
| 描述： | Precision Current / DC Current Shunts |
| 文件： | 总4页 (文件大小：585K) |
| 中文： | 中文翻译 | 下载： | 下载PDF数据表文档文件 |
RS Series
Precision Current / DC Current Shunts
• Base Mounted Shunt
• Current Rating 5 to 1200 Amps
• 50mV, 100mV, or Custom Output
• Standard Tolerance ±0.25%
• UL Listed
• Manganin Resistive Element
• Common Applications:
Solar Generators, Wind Power,
Heavy Industry, Electroplating,
Battery Chargers, Mining
SPECIFICATIONS
Rated
Current (A)
Operating
Current (A)
Resistance (mΩ) Resistance (mΩ)
Drawing
Type
50mV Output
100mV Output
RSA-5
RSA-10
5
10
3.33
6.67
10
10.00
5.00
20.00
10.00
RSA-15
15
3.333
6.667
RSA-20
20
13.3
20
2.500
5.000
RSA-30
30
1.667
3.333
RSA-50
50
33.3
50
1.000
2.000
RSA
RSA-75
75
0.667
1.333
RSA-80
80
53.3
56.7
66.7
100
113
133
166
200
267
300
333
400
533
666
800
0.625
1.250
RSA-85
85
0.588
1.176
RSA-100
RSA-150
RSB-170
RSB-200
RSB-250
RSB-300
RSB-400
RSB-450
RSB-500
RSB-600
RSC-800
RSC-1000
RSC-1200
100
150
170
200
250
300
400
450
500
600
800
1000
1200
0.500
1.000
0.3333
0.2941
0.2500
0.2000
0.1667
0.1250
0.1111
0.1000
0.0833
0.0625
0.0500
0.0417
0.6667
0.5882
0.5000
0.4000
0.3333
0.2500
0.2222
0.2000
0.1667
0.1250
0.1000
0.0833
RSB
RSC
Riedon Inc.
08/16
300 Cypress Avenue
Alhambra CA 91801
www.riedon.com
(626) 284-9901
(626) 284-1704
RS Series
Precision Current / DC Current Shunts
SPECIFICATIONS
Rated Output
50mV, 100mV, Custom
±0.25% Standard
±0.1% Available ( Contact Factory)
Voltage Tolerance
Operating Temp.
Storage Temp.
-40°C to +60°C
-55°C to 80°C
Dielectric Strength
750VDC ( Terminal Block to Base)
Resistance Element: Manganin
Terminal Block RSA & RSB: Brass
Terminal Block RSC: Copper
Hardware: Brass
Materials
Solder: Lead Free Standard, Lead on Request
Built to A-A-55524, Commercial Version of MIL-S-61B
Calibrated on Certified N.I.S.T Equipment
Military Spec
Manganin Temperature Coe"cient of Resistance 15 ꢀꢀM/C
+0.04
+0.02
0
-0.02
-0.04
-0.06
-0.08
-0.10
-0.12
10
20
30
40
50
60
70
80
90
100
Temperature °C
Ordering Information
Part Description: Part Type - Voltage Output (mV)
Example: RSA-100-50
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
08/16
www.riedon.com
RS Series
Precision Current / DC Current Shunts
Dimensions
RSA
2X
.205 5.2
1/4-28 NUT
1.25 31.8
.88 22.4
TYPE
Fastener Torque
Weight
0.1 Kg
0.3 Kg
0.9 Kg
X
E
H
RSA
RSB
RSC
3-3.33 ft-lbs (4.1-4.5 Nm)
14-15 ft-lbs (19-20 Nm)
32-35 ft-lbs (35-48 Nm)
1.00 25.4
1.50 38.1
1.67 42.3
8-32 Screw
1.04 26.4
.56 14.2
8-32
Output
14-15 in-lbs (1.6-1.7 Nm)
0 0
1.00 25.4
2.00 50.8
RSB
RSC
1/2-13 x 7/8
2X
.205 5.21
2X
.205 5.2
2.000 50.8
1.75 44.5
1.25 31.8
2.500 63.5
X
E
H
1
.
3
9
.
1
4
1
0
5
3
6
7
1.63 41.3
.
5
.
2.250 57.2
2.50 63.5
1.50 38.1
3.66 93
2.16 54.9
2.10 53.3
1.52 38.6
1.65 41.9
1.25 31.8
8-32 Screw
8-32 Screw
.55 14
0 0
.58 14.7
0 0
3.25 82.6
4.50 114.3
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
08/16
www.riedon.com
RS Series
Precision Current / DC Current Shunts
TECHNICAL NOTES
Mounting: Shunts should be mounted with manganin resistive blades in a vertical position in order to
promote the free convectional flow of air. If vertical mounting is not practical, forced air cooling or adding
heat sinks to the blocks can reduce the operating temperature. The manganin blades must never exceed
+145°C, otherwise permanent resistance change may occur.
When current of 100A or greater is passing through the shunt, the major portion of heat generated is dis-
sipated by conduction through the shunt terminal blocks into the connecting buss bar or cable. Therefore
it is necessary to insure that good contact is made between the shunt terminal blocks and the conductor
terminals and that the conductors have adequate cross section to keep the temperature of the shunt from
exceeding 145°C ( 125°C recommended ).
If the shunt is mounted in an enclosure, care must be taken to ensure adequate cooling. If the power density
is greater than 1/4 watt per square inch of the enclosure surface for all enclosed devices, additional cooling
must be supplied in the form of air vents or fans.
Shunts also must be installed in a way that protects them from thermal expansion forces produced from
buss bar or short-circuit forces. Flexible wiring may be required in high pulse current, high vibration, or high
temperature applications.
Where possible, all shunts should be mounted on the ground side of the circuit. For circuits above 750VDC,
RS shunts must be mounted on the ground side due to the dielectric strength of the shunt base.
Mounting Orientation
UP
Current
Current
Output Voltage
Operating Current Derating: For continuous operation, it is recommended that shunts are not run at more
than two thirds (2/3) the rated current under normal conditions per IEEE standards for DC instrument shunts.
At ambient temperatures above 40°C, the current must be further derated to prevent damage.
Pulse Operation: Shunts that do not need continuous operation and are only exposed to intermittent pulses
can be operated at levels above their rated current for short periods of times. Pulses are limited to the
maximum temperature of the blades not exceeding 145°C ( 125°C recommended ). Many variables such as
ambient temperature, cross section of the current carrying conductors, and pulse duration make calculating
exact values difficult. Shunt size will need to be validated by customer for pulse current and duty cycle on a
case by case basis.
Riedon Inc.
300 Cypress Avenue
Alhambra CA 91801
(626) 284-9901
(626) 284-1704
08/16
www.riedon.com
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