RTBS0100B050Z00

RTBS0100 Precision DC Ammeter Shunt Precision Shunt, Rated Current 100A, Standard Tolerance 0.1% Low Thermal EMF, TCR ±20ppm/℃, Bakelite Based Shunt works at very high current, so the temperature of surface rises sharply which will cause the change of resistance. For precision measurement, we must choose shunts which are with low TCR, low PCR and low Thermal EMF. Resi launched the precision shunt series which can reach 0.1% 10% to 100% of rated current. The maximum TCR is ±20ppm/℃ in the range of -20℃ to +120℃. Besides, the shunt has extreme stability with low PCR and low Thermal EMF. Dimensions（mm） 150±0.5 130±0.5 99.3±1 80.6±0.5 21±0.5 100A /50mV 230101001 30±0.5 12±0.5 19.5±0.5 46.3±0.5 6 2-M3 13 2-M8 Model Resistance Tolerance TCR Output Voltage Rated Current Max. Current Weight RTBS0100B050Z00 500μΩ ±0.1% ±20ppm/℃ 50mV 100A 120A 263±10g 150±0.5 130±0.5 99.3±1 80.6±0.5 21±0.5 100A /75mV 230101001 30±0.5 12±0.5 19.5±0.5 46.3±0.5 6 2-M3 13 2-M8 Model Resistance RTBS0100B075Z00 750μΩ Tolerance TCR ±0.1% ±20ppm/℃ Output Voltage Rated Current 75mV 100A Max. Current Weight 120A 259±10g Performance Test Test Method Standard Optimum Surface Temperature Measured at the center of metal strip +30℃~+90℃ - 40℃~+140℃ Operating Temperature Range Measured at the center of metal strip Maximum Surface Temperature Measured at the center of metal strip +140℃ Thermal EMF When reach heat balance, disconnect the circuit and test EMF ＜0.05 μV/℃ TCR Measured temperature range of -25℃ to +120℃, +25℃ Ref. ≤±20ppm/℃ Current Coefficient 10%-100% Rated Current Test ≤±5ppm/A Short Time Overload 2.25 rated voltage for 5 seconds △R≤±0.05% Long Time Overload 1.2 rated voltage for 2 hours, +25°C △R≤±0.1% Thermal Equilibrium Time Measured at the center of metal strip when resistance won‘ t change ＜5min C&B Electronics Shenzhen Co.,Ltd
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Version: V4 Date: 2022/12/26 RTBS0100 Precision DC Ammeter Shunt Custom Service for Your Application (CTS Service) Each shunt requires precise trimming of value. The main challenge in the trimming process is to reach tight tolerance both at 10% of rated current and 100% rated current. It is known that the temperature curve of Manganin material is not linear, so to adjust the surface temperature of metal strip to the optimum surface temperature is the only way to achieve tight tolerance . CTS is a free customized trimming service. It will estimate customer's working condition and the average surface temperature of the shunt, and then provides the best resistance for precision measurement. CTS can significantly improve the tolerance. Each CTS product will be assigned with a unique identification code. We will provide test reports for every CTS product for free. If you are interested in CTS service, please contact our sales engineers with below required information. Minimum Operating Current Minimum Ambient Temperature Maximum Operating Current Maximum Ambient Temperature Working Current Curve Ambient Temperature Curve Final Product Installation Method Final Product Working Condition Heat Dissipation Condition Design Lifetime Installation Notes or Picture Note Reverse Installation Advice (1) During the installation of the shunt, it shall be ensured that the copper head is in close contact with the bus bar, and the contact area between the copper head and the bus bar shall be as large as possible. If conditions permit, the size of the bus bar shall be as large as possible and the bus bar shall be clean. Reverse Installation Example 电压采样接入口 Voltage Terminal 电流接入口 Current (2) According to the IEEE standards, the operating current should not be higher than 2/3 of the rated current under the normal conditions. (3) Derating is required when the ambient temperature is higher than 40 °C to avoid damaging the shunt. (4) Air cooling, water cooling, increased physical size, and installation of heat sinks can be used to reduce operating temperature. (5) It is recommended to wear gloves when installing the shunt to prevent oil contamination. (6) The surface of the copper bar used for installing the shunt shall be smooth and clean. It is recommended that the surface be plated with nickel or tin to reduce the contact resistance. (7) Recommended Installation Torque No. Bolt Size Recommended Torque (N.m) 1 M3 0.4~0.8 2 M8 10~15 C&B Electronics Shenzhen Co.,Ltd
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Version: V4 Date: 2022/12/26 RTBS0100 Precision DC Ammeter Shunt Storage Instructions (1) The shunt shall be stored at a temperature of 5 to 35 ° C, humidity