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Approvals & Standards

  • UL Recognized component guide IZLT2, File E52283
  • CSA Certified class 6225, File 32169

Key features & benefits

Mersen Semiconductor fuse blocks feature open face styles. Each version is rated 750 volts and accommodates 14 x 51mm or 22 x 58mm IEC Cylindrical fuses. 703, U705 and U710 fuseholders feature Mersen's unique adder-block design which can be assembled onto 1, 2, or 3-pole fuseholders to form multi-pole segmented holders of as many poles as desired. A choice of box, screw, or pressure plate connectors is offered to fit a wide range of standard or solid copper wire. All versions have verified dielectric strength in excess of 2500V. A patented built-in DIN-rail adapter on the U710 blocks adds further design versatility. All fuse clips are made of high conductivity tin-plated copper with spring reinforced clips.

More specifications

Applications

  • All circuits up to 750 volts using semiconductor fuses for protection of small inverters, UPS systems, motor drives, etc.

Product Specifications

Frequency (Hz)

50/60   Hz

Ampere range

0 to 30 A  

Short Circuit Current Rating (SCCR)

200   kA

Flammability rating

94 V-0  

UL file number

File E52283  

UL Category Code

IZLT2  

CSA File number

Class 6225, File 032169_0_000  

REACH Compliant

Yes  

Max Operating Temp.

80   °C

Max Storage Temp.

80   °C

Min Storage Temp.

-25   °C

Harmonized System

853690  

References in this serie  (24)

Item number - Catalog No.

Ampere rating

Fuse size

Fuse Type/Class

Number of poles

Indication System

Product weight

70305

30   A

-

-

Adder  

-

0.0454   kg

70306

30   A

-

-

1-pole  

-

0.0544   kg

70307

30   A

-

Semiconductor  

2-pole  

-

0.1043   kg

70308

30   A

-

Semiconductor  

3-pole  

-

0.1724   kg

70315

30   A

-

Semiconductor  

Adder  

-

0.0454   kg

70316

30   A

-

Semiconductor  

1-pole  

-

0.0544   kg

70317

30   A

-

Semiconductor  

2-pole  

-

0.1043   kg

70318

30   A

-

Semiconductor  

3-pole  

-

0.1724   kg

70325

30   A

-

Semiconductor  

Adder  

-

0.0454   kg

70326

30   A

-

Semiconductor  

1-pole  

-

0.0544   kg

70327

30   A

-

Semiconductor  

2-pole  

-

0.1043   kg

70328

30   A

-

Semiconductor  

3-pole  

-

0.1724   kg

70355

30   A

-

Semiconductor  

Adder  

-

0.0454   kg

70356

30   A

-

Semiconductor  

1-pole  

-

0.0544   kg

70357

30   A

-

Semiconductor  

2-pole  

-

0.1043   kg