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Approvals & Standards

IEC 60282-1

  • IEC 60644
  • DIN 43625

Key features & benefits

Mersen HV fuse-links have been used for reliable protection in high-voltage switchgear and controlgear and high-voltage systems for decades.
Mersen HV fuse link for motor protection is specially designed to protect HV motors against the effect of short circuit current and support repeated peak currents due motor starting.
Mersen uses the best materials : fuse elements are in pure silver, caps are in silver-plated brass and body is in melamine fiber glass.
As defined in the IEC 60644 the coefficient K is 0.51.

More specifications


HV motor protection

  • HV motor pump protection
  • For indoor use
  • Operating temperature -25°C to +40°C

Product Specifications

Item Number


Catalogue No.


Item Description (ERP)

729P CPASJD 45/50,8.442 160  

Short Description

DIN 43625 fuse for HV motor, IEC 60644, 442mm, 45mm, striker 50N, 7,2kV, 160A  



Rated voltage AC IEC

7.2   kV

Ampere Rating

160   A

Fuse Size

d=50,8mm L=442mm  



Clearing I2t At Rated Voltage

290   kA²s

AC Max I.R./Breaking Capacity: I1

50   kA

Min Interrupting Rating (MBC)

880   A

Power Dissipation at Intermediate Current Value

41 W @ 0.7 In  

Indication System


Indication System Type


Connection/Terminal Material

Silver-Plated Brass  

Connection/Terminal Type


Body/Insulating Material

Melamine fiber glass  

Product Weight

4.85   lb

Product Diameter

2   in

Product Length

20   in

Sell Pack Quantity

3   EACH

Sell Pack Weight

14.55   lb

Sell Pack Width

10.63   in

Sell Pack Length

24.02   in

Sell Pack Height

3.94   in