CDS Current Transformer

About the CDS Current Transformer

The CDS Current Transformer is part of the ELEHPD Current Transformer range. CDS Current Transformers CDS Series: Primary current: Secondary approval: Standard current: Maximum voltage: Frequency: Rated load: Class: Short-time thermal current: Rated security coefficient: -High fire retardancy and security -Wide range of sizes to accommodate all the existing installations Specification: Model Primary / secondary (A) CDS-40 100/5, 150/5, 200/5, 250/5, 300/5, 400/5, 500/5, 60 ELEHPD manufactures and exports low voltage electrical products from Yueqing, Zhejiang, China, supplying distributors, panel builders, M&E contractors and OEM buyers worldwide.

Typical applications

Industrial control panels and PLC power rails
LED drivers, signage and display power
Battery charging and DC backup systems
Motor drives, welding sets and rectifier assemblies
Instrumentation and test equipment

How to specify the right Current Transformer

Size the output current with at least 20-30 % headroom over the load
Check the input range covers the local supply, including brown-outs
Confirm the enclosure and cooling method for the panel temperature
Verify the protection set: over-current, over-voltage, thermal and short circuit

Specifications

CDS Current Transformers

CDS Series:

Primary current:
Secondary approval:
Standard current:
Maximum voltage:
Frequency:
Rated load:
Class:
Short-time thermal current:
Rated security coefficient:
-High fire retardancy and security
-Wide range of sizes to accommodate all the existing installations

Specification:

Model	Primary / secondary (A)
CDS-40	100/5, 150/5, 200/5, 250/5, 300/5, 400/5, 500/5, 600/5A
CDS-60	300/5, 400/5, 500/5, 600/5, 750/5, 800/5, 1000/5, 1200/5A
CDS-80	500/5, 600/5, 750/5, 800/5, 1000/5, 1200/5, 1500/5, 1600/5A
CDS-100	600/5, 750/5, 800/5, 1000/5, 1200/5, 1500/5, 1600/5, 2000/5A, 2500/5, 3000/5A
CDS-120	1000/5, 1200/5, 1500/5, 1600/5, 2000/5, 2500/5, 3000/5, 4000/5A, 5000/5

Dimension of case (mm):

Model	Dimensions	Busbar hole dimension	Installation dimension
W	H	D	A	E	M
DS-40	75	105	45	42	32	45
DS-60	98	116	45	62	32	42
DS-80	118	120	45	82	32	60
DS-100	140	130	49	102	32	80
DS-120	165	152	49	122	53	80

outline drawing:

Frequently asked questions about the CDS Current Transformer

How much headroom should I leave on the power rating?

For continuous industrial duty plan on 20-30 % headroom above the measured load. For loads with high inrush, such as motors or capacitive input, allow more and check the surge rating rather than only the average current.

Do these units accept 110 V and 230 V mains?

Input ranges are model-specific and shown in the specification table. Where a wide-range input is available it is stated; otherwise send your mains voltage and we will match the model.

What protection features are built in?

Typical protection covers short circuit, over-current, over-voltage and thermal shutdown. The exact set is listed per model in the specification table above.

Can you supply matching DIN-rail or enclosed versions?

Open-frame, enclosed and DIN-rail variants exist across this family. Send the model you are working from and we will confirm the equivalent mounting option.