M401

Electronic Current Burden (5A)

Electronic Current Burden M401 is used as a load in the secondary circuits of Current Transformers with secondary current 5 A during their verification and calibration

FEATURES AND BENEFITS

  • Rated current – 5 A
  • Rated power range:
    0,5 to 50 V·A, cosφ = 0,8 at 50 Hz
    0; 0,5 to 50 V·A, cosφ = 1 at 50 Hz
  • Cable, contact and internal test set (Comparator) resistances are compensated by four-conductor connection
  • Non-breaking measuring circuit during switching of the burden
  • Possibility of using with automated CT calibration systems
  • Small size and low weight

APPLICATIONS

M401 is used by:

  • Manufacturers of Current Transformers
  • On-site testing of Current Transformers
  • Calibration Laboratories
  • Metrology Institutes

Name

Value

Rated current

5 A

Current range

1 … 150 %

Rated power for cosφ = 0,8

0,5; 0,75; 1; 1,25; 1,5; 1,75; 1,875; 2; 2,5; 3; 3,75; 4; 5; 6,25; 7,5; 10; 11,25; 12,5; 15; 20; 25; 30; 40; 45*; 50* V·A

Rated power for cosφ = 1

0; 0,5; 0,75; 0,8; 1; 1,25; 1,5; 1,875; 2; 2,5; 3,75; 4; 5; 6; 7,5; 10; 12,5; 15; 30; 50* V·A

Active and reactive power errors

 

± 0,03·S**  for 0,8 V·A < S < 50 V·A

± 0,04·S**  for S = 0,75 V·A

± 0,06·S**  for S = 0,5 V·A

± 0,05 V·A for S = 0 V·A

* Burden power values are possible for 1 to 120 % of rated current
** Set burden power value

Power mains:
Rated voltage

Rated freguency

220/230 V

50 Hz

Operating Temperature 0 … 40 °С
Relative Humidity up to 80 % non-condensing
Size 230 × 130 × 300 mm
Weight 5 kg
Standards

Safety

EMC

 

EN 61010-1:2010

EN 61326-1:2013

Calibration Interval 2 years recommended

RELATED PRODUCTS

S100

Automatic Сurrent  Source

M400

Electronic Current Burden (1A)

M402

Electronic Current Burden (1; 2; 5 A)

M500

Programmable Standard Current Transformer

M100

Comparator