DL-20CE series current relayDetailed product description：

The DL-20CE series current relay (hereinafter referred to as the relay) is used in overload and short-circuit protection circuits of generators, transformers, and transmission lines.

2. Main technical parameters

model

Maximum setting value/A

Maximum setting range/A

Rated current/A

Coil series connection

Parallel connection of coils

Power consumption/VA

return coefficient

Action current/A

Thermal stability current A

Action current/A

Thermal stability current A

series connection

association

long-term

Is

long-term

Is

DL-21CE DL-22CE DL-23CE DL-24CE

zero point zero zero eight

0.002-0.008

zero point zero one

zero point zero two

0.002-0.004

zero point zero one

zero point one

0.004-0.008

zero point zero two

zero point two

When connected in series at the rated value, the measurement should not exceed 7

Not less than 0.8

zero point zero two

0.005-0.02

zero point zero three

zero point zero six

0.005-0.01

zero point zero three

zero point three

0.01-0.02

zero point zero six

zero point six

zero point zero six

0.015-0.06

zero point one

zero point two

0.015-0.1

zero point one

one

0.03-0.06

zero point two

two

zero point two

0.05-0.2

zero point three

zero point six

0.15-0.3

zero point three

three

0.1-0.2

zero point six

six

zero point six

0.15-0.6

one

two

0.05-0.1

one

ten

0.3-0.6

two

twenty

two

0.5-2

three

six

0.5-1

four

thirty

1-2

eight

sixty

When the current is 5A and the coil is connected in parallel, the measurement should not exceed 3.5

six

1.5-6

ten

twenty

1.5-3

ten

one hundred

3-6

twenty

two hundred

ten

2.5-10

ten

twenty

2.5-5

ten

one hundred

5-10

twenty

two hundred

fifteen

3.75-15

ten

twenty

3.75-7.5

fifteen

one hundred

7.5-15

thirty

two hundred

twenty

5-20

ten

twenty

5-10

fifteen

one hundred

10-20

thirty

two hundred

fifty

12.5-50

fifteen

thirty

12.5-25

twenty

one hundred and fifty

25-50

forty

three hundred

one hundred

25-100

fifteen

thirty

25-50

twenty

one hundred and fifty

50-100

forty

three hundred

two hundred

50-200

fifteen

thirty

50-100

twenty

one hundred and fifty

100-200

forty

three hundred

Not less than 0.7

Action error: not greater than 6%.  
Action time: not more than 0.12s when 1.1 times the measured action value; not more than 0.04s when 2 times the measured action value
Action consistency: not greater than 5%.  
Contact capacity: In a DC inductive load circuit with a voltage not exceeding 250V, a current not exceeding 5A, and a time constant of 5 ± 0.75ms, the output contact of the product has a breaking capacity of 50W. Under the specified load conditions, the output contact of the product can reliably operate and return 5 × 104 times. The long-term allowable current for the output contact is 5A.
Dielectric strength: The conductive terminals of the product are connected together and can withstand an AC voltage of 2000V (effective value) 50Hz for 1 minute between exposed non charged metal parts or shells without insulation breakdown or flashover.  

3. Internal wiring

DL-20CE series current relay


4. Appearance and opening size



DL-20CE series current relay