SSD Series – Riedon™ Digital Current Sensor with RS485/MODBUS Interface by Bourns

Features

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24-bit isolated shunt current sensor with

RS485/MODBUS interface

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100 A (2 kA peak), 250 A (5 kA peak), or

500 A (10 kA peak)

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Dielectric withstand: 1500 VDC

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Reinforced insulation according to IEC

60664

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16-bit +150 °C microcontroller

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24-bit ADC with buffered analog inputs

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ECC flash memory with autocorrect

single bit errors

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Internal and external CRC data error

detection

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Advanced non-linear temperature

compensation

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RoHS compliant*

*RoHS Directive 2015/863, Mar 31, 2015 and Annex.

Specifications are subject to change without notice. Users should verify actual device performance in their specific

applications. The products described herein and this document are subject to specific legal disclaimers as set forth on the last

page of this document, and at www.bourns.com/docs/legal/disclaimer.pdf.

WARNING Cancer

and Reproductive Harm

www.P65Warnings.ca.gov

Specifications

Characteristic

SSD-100A

SSD-250A

SSD-500A

Nominal Current (A)

±100

±250

±500

Peak Current (No Clipping)

+2 kA / -1 kA

+5 kA / -2.5 kA

+10 kA / -5 kA

Shunt Resistance (µΩ)

Excluding primary termination resistance

300

120

60

Initial Accuracy

< ±0.1 %

Linearity Over Current Range

< ±0.1 % + 5 mA

< ±0.1 % + 13 mA

< ±0.1 % + 25 mA

Bandwidth

5 kHz

ADC Resolution

24 bits

Speed (readings per second)

up to 1100 rps (0.9 - 3300 ms per reading)

Supply Voltage (5 - 60 VDC)

@ 5.0 V, 55 mA typical

@ 24 V, 15 mA typical

DC Bus Voltage Measurement

±1200 VDC max. (10 M input impedance)

Linearity Over Voltage Range

< ±0.1 % + 25 mV

RS-485 Interface (default)

Speeds: 4800, 9600, 14400, 19200 (default), 28800, 38400, 57600, 115200, 230400, 460800, 921600

8 bits, no parity, 1 stop

Long Term Stability

< ±0.1 % 1000 hours 60 °C terminal temperature

< ±0.3 % 1000 hours 115 °C terminal temperature

Galvanic Isolation

1500 VDC 1000 VAC RMS (maximum continuous working voltage)

Dielectric Strength

3500 VAC RMS 1 minute

Operating Temperature

-40 °C to +115 °C ambient

-40 °C to +125 °C primary conductor (see derating curve on page 2)

Storage Temperature

-55 °C to +125 °C

Additional Information

Click these links for more information:

PRODUCT TECHNICAL

LIBRARY

INVENTORY SAMPLES

CONTACT

Materials (RoHS Compliant)

Resistance Element....................CuMnNi

Current Terminal1....Nickel-plated copper

Electronics Housing..............94-V0 rated

Note:

1 Suitable for copper, copper-clad aluminum or

aluminum conductors

Product Safety Notice

The SSD Series Digital Current Sensor

must be used in a manner specified by

this data sheet, otherwise the protection

provided by the equipment may be

impaired. The SSD Series should

not be treated as a structural part of

the installation and must be properly

supported on both ends.

How to Order

SSD - 100A - R - T

Model

Amps

100A = 100 A

250A = 250 A

500A = 500 A

Interface

R = RS-485, MODBUS

Option

Blank = Standard

-T = Internal 120 Ω Termination Resistor