No.: E18015













Version: V4

Date: 2022/12/26

C&B Electronics Shenzhen Co.,Ltd
|

| resi@cbeureka.com | Tel:0755-83981080/83981010

www.resistor.today

Custom Service for Your Application (CTS Service)

Reverse Installation Advice

Minimum Operating Current

Maximum Operating Current

Working Current Curve

Final Product

Final Product Working Condition

Design Lifetime

Note

Minimum Ambient Temperature

Maximum Ambient Temperature

Ambient Temperature Curve

Installation Method

Heat Dissipation Condition

Installation Notes or Picture

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.

电压采样接入口

电流接入口

Reverse Installation Example

Current

(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.

Voltage Terminal

(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 inst-

alling 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

Precision DC Ammeter Shunt

RTBS0200