SMB350 User’s Manual
Page 10
SMB350-4
Ordering
Code
Compatible
CT
Max.
Current
CT Type
Remark
SMB350-4-A
CT-5D3
5A
Solid-Core
Use with 5A output regular CTs
CT ratio depends on specs of regular CTs
CT-5S
5A
Split-Core
Use with 5A output regular CTs
SMB350-4-B
CT-50D3
50A
Solid-Core
CT-100D3
100A
CT-200D3
200A
CT-400D6
400A
CT ratio = 2
CT-600D9
600A
CT ratio = 3
CT-50S/SB
50A
Split-Core
CT-100S/SB
100A
CT-200S/SB
200A
CT-400S
400A
CT ratio = 2
CT-600S
600A
CT ratio = 3
Note : CT ratio = 1 when using 50A~200A CTs.
CT ratio = 2 when using 400A CTs, CT ratio = 3 when using 600A CTs.
Please see Section 2.10 when using with 5A regular output CTs.
(2) Current Sensor Requirement
Configuration
CT required
1-Phase, 2 Wire
1 CT
3-Phase, 3 Wire
3 CTs
3-Phase, 4 Wire
3 CTs
(3) Dedicated Current Sensors
Solid-Core Dedicated CT
Split-Core Dedicated CT