ABB E 90 Catalog

E 90 range of fuse disconnectors
and fuseholders

Uncompromising performance

Designing simplicity

ABB competence serving the most
demanding customers

Suitability for disconnection and switching, effective heat
dissipation and certified compliance with several international
standards are mandatory requirements to meet the needs of the
most demanding customers. ABB has dedicated its designers’
passion, competence and creativity to the development of E 90
range of disconnectors and fuseholders, of E 90 50/125 series
designed to ensure isolation and protection of circuits in big
industrial plants, E 90 CC and E 90 J series specifically designed for
the NAM markets. The result is the first AC-22B fuse disconnector,
certified up to 32 A by the most outstanding marks and approvals
all over the world.

2 | E 90 range of fuse disconnectors and fuseholders

The new ABB standard

Certified according to the most important
international marks

A passport to the world.

International quality marks, naval type-approvals and UL certification
make E 90 the ideal range for designers and manufacturers of
switchboards and installations “without frontiers”.

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E 90 range

Designed by ABB for the most demanding
customers

Industrial automation

E 90 fuse switch
disconnectors

– One module per pole
– Versions 1, 1N, 2, 3, 3N, 4
– AC-22B according to IEC 60947-3
– Rated current 20 A and 32 A
– Rated voltage 400 V AC-22B and 690 V AC-20B
– Can be equipped with 8.5 x 31.5 mm and 10.3 x 38 mm

aM and gG fuses

– Designed for isolation and switching under load and for

protection of secondary circuits of industrial plants
– All the versions are available with optical blown fuse indicator
– Compatible with ABB busbars of S 200 series and Unifix

plug-in system
– cURus certification

Distribution switchboards

E 90h fuseholders

– One pole plus neutral in one module
– Versions 1N, 3N
– Certified according to IEC 60269-3
– Rated current 20 A and 32 A
– Rated voltage 400 V AC
– Can be equipped with 8.5 x 31.5 mm and 10.3 x 38 mm

aM and gG fuses

– Designed for instruments and auxiliaries protection

in switchboards and consumer units
– All the versions are available with optical blown fuse indicator
– Compatible with ABB busbars of SN 201 series and Unifix

plug-in system

4 | E 90 range of fuse disconnectors and fuseholders

Photovoltaic installations

Industrial circuit protection

E 90 PV fuse disconnectors

– One module per pole
– 1 and 2-pole versions
– DC-20B according to IEC 60947-3
– Rated current 32 A
– Rated voltage 1000 V DC
– Can be equipped with 10.3 x 38 mm gPV fuses
– Designed for isolation and protection of circuits in
photovoltaic installations up to 1000 V DC
– All the versions are available with optical blown
fuse indicator
– Certified according to UL 4248-18

E 90 50/125
fuse-disconnector/fuseholder

– Versions 1, 1N, 2, 3, 3N
– AC-20B according to IEC 60947-3
– Rated current 50 and 125 A
– Rated voltage 690 V AC
– Can be equipped with any type of cylindrical fuses 14x51
(E 90/50) and 22x58 mm (E 90/125)
– Specifically designed for industrial circuit protection
– All the versions are also available with optical blown
fuse indicator
– Certified according to UL 4248-1

E 90 range of fuse disconnectors and fuseholders | 5

E 90 range

Designed by ABB for the most demanding
customers

For the American market

E 90 CC fuseholders

– One module per pole
– Versions 1, 1N, 2, 3, 3N, 4 poles
– Rated current 30 A
– Rated voltage 600 V AC/DC
– Can be equipped with Class CC fuses
– All the versions are available with optical blown
fuse indicator
– Certified according to UL 4248-4
– Rejection member feature according to UL 4248-4

Industrial installation
in the NAM market

E 90 30/60 J fuseholders

– 1, 2 and 3 poles versions
– Rated current 30 and 60 A
– Rated voltage 600V AC
– Can be equipped with Class J fuses
– All the versions are also available with
optical blown fuse indicator
– UL listed according to UL 4248-8

6 | E 90 range of fuse disconnectors and fuseholders

Choosing the best

ABB experience sets a new leading-edge
performance standard

Tip-top
performance

E 90 fuseholders with rated
current up to 32 A can be used
in any applications where
you need to ensure electrical
protection, isolation and
switching under load of
inductive or resistive loads in
compliance with IEC 60947-3
Standard. Utilization category of
this series is AC-22B up to
400V. The technology
solutions applied to reduce
power dissipation help to
minimize module heating.

Completeness

The fuse tripping can be easily
displayed, thanks to the special

blown fuse indicator light.

Reliability

Venting grooves and cooling
chambers improve heat

dissipation even in multiple-pole
configurations. The reduced
operating temperature inside
fuseholders ensures durability and
reliability of the devices over time.

Compactness

The compact dimensions enable
to close the switchboard door
even when the fuseholder is open,
thus ensuring total safety during
maintenance.

1P+N versions in one module
only and 3P+N in three
modules only are available.

Ease of installation.

E 90 fuseholders are fully compatible
with the Unifix-L wiring system

Universal use

Screw holes have increased

diameter to accommodate

insulated screwdrivers and electric
screwdrivers. In addition, with the

Pozidrive PZ2 screws tightening

can be performed by exerting less
torque than conventional screws,
and the same electric screwdriver
can be used for all terminals.
Moreover, the PS connection
busbars facilitate the connecting
operations, making the wiring both
simple and safe and providing
complete integration with S 200 and
SN 201 System pro M compact
circuit-breakers.

E 90 range of fuse disconnectors and fuseholders | 7

®

E 90 safe and smart range is designed for quick, flexible and
error-proof installation, to ease the everyday use of devices.
Thanks to its unique features, E 90 series sets a new safety
standard.

Reliable connections

Wide terminals allow the use of cables with

section up to 25 mm

knurling on the terminal cages ensures safe and

reliable connections.

2

, whereas the antivibration

Ease of use

Fuseholder profile has been
designed for maximum ease
of use: the 90° flip hinge with

ergonomic knob, makes the

replacement of fuses easier
even in small spaces or when
wearing protective gloves.

Safety

To ensure protection and safety
during maintenance operations
and avoid any accidental switching,
fuseholders can be sealed in
closed position, and padlocked
in open position. The protection
degree is IP20 when the unit is
installed behind the switchboard
slotting.

Environmental protection.

The fuseholders are compliant with RoHS (Restriction of Hazardous Substances)
European directive, which prohibits the use of hazardous substances in the
manufacture of electrical and electronic equipment.

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Smart protection for installations
with E 90s

The whole E 90 series is available with optical blown fuse
indicator light. In particular E 90s PV is the first fuse disconnector
for photovoltaic installations with optical blown fuse indicator,
which efficiently monitors DC installations up to 1000 V.

Flexible

E 90: 24 to 690 V operation in
AC networks. Can be powered
from both the load side and
the supply side.

E 90 PV: 24 to 1000 V
operation in DC networks with
upstream supply.

Simple

No need for auxiliary supply
or specific wiring.

Effective

Local fuse tripping signal.

Allows the faulty phase
to be immediately detected.

E 90 range of fuse disconnectors and fuseholders | 9

Results you can trust

High performance of E 90
fuse disconnectors

10 | E 90 range of fuse disconnectors and fuseholders

E 90 protection and control

A range developed for automation
and industry

Applications

- Automation switchboards

- On-board switchboards

- OEM

Main functions:

- Protection of terminal circuits

- Switching of loads, even
inductive

- Selectivity

E 90 fuse disconnectors are designed for switching
under load, ensuring isolation and protection against
short circuit and overload, in compliance with the
IEC 60947-3 Standard.

E 90 range is designed to comply with the strictest requirements
of OEMs and panel builders. They are ideally installed in
industrial automation switchboards to protect secondary circuits,
primary and secondary of transformers, motors and other
resistive or inductive loads. Due to the AC-22B utilization
category up to 400 V, according to the IEC 60947-3 Standard,
E 90 fuse disconnectors are convenient, simple and reliable
devices for loads switching and protection.
Fuse disconnectors ensure selectivity, if equipped with
appropriate fuses. Since they are uURus type-approved, they
can be installed in UL-certified machines designed for the
American market.

Application example

Here you can find a typical industrial control application. According to
IEC60364-1 Standard, the secondary winding of a control transformer must
be protected against short circuits and overload. The transformer provides
dedicated 230VAC power supply to a battery of industrial contactors.

E 90 range of fuse disconnectors and fuseholders | 11

Industrial distribution

E 90h fuseholders:
ideal for distribution switchboards

12 | E 90 range of fuse disconnectors and fuseholders

E 90h fuseholders

Compact protection of electric auxiliaries
in distribution switchboards

Applications

- Distribution switchboards

- Consumer units

Terminal protection of:

- Electric auxiliaries

- Switchboard instrumentation

- Surge arresters

E 90 Fuseholders – 1P+N in one module and 3P+N in
three modules, respectively – are very compact in size
and are the most suitable solution for protection of
circuits and devices inside switchboards.

E 90h range is designed for protecting electrical devices both
in single phase and in three-phase networks with neutral.
They are particularly suitable inside switchboards and
consumer units for protecting lighting circuits, modular sockets
and electrical devices for monitoring, measuring and signalling.

Application example

Here you can find a typical application inside a secondary distribution
switchboard. Following the manufacturer’s instruction, the voltmetric
inputs of the multimeter are protected with fuses.

E 90 range of fuse disconnectors and fuseholders | 13

E 90 PV fuse disconnectors
for photovoltaic applications

Designed for industry professionals

Features

- For 10.3 x 38 mm fuses

- Rated voltage 1000 V DC

- Rated current 32 A

- DC-20B Utilization category

- Reference standards:
IEC 60947-3 UL 4248-18

E 90 PV fuse disconnectors have been specifically
designed for photovoltaic applications. Thanks to their
rated voltage up to 1000VDC they are the ideal solution
for protecting cells, inverters or surge arresters. In case of
maintenance, they ensure isolation of circuits and strings
up to 1000V in direct current, in total safety.

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Isolation and protection
of strings up to 1000 V

Application examples

String protection

To prevent damage to the equipment in the direct current
lines of photovoltaic installations and ensure that it remains

isolated when maintenance work is performed, E 90 PV fuse

disconnectors can be installed downstream of the inverter so
as to protect each string. The fuses must be selected to suit
the rated current of the line.

Surge arrester back-up

When the Icc short-circuit current at the installation point
exceeds 100 A DC, OVR PV surge arresters require back-up
protection with a specific gR-type fuse.

DC side of the inverter

In small photovoltaic installations, E 90 PV fuse disconnectors
can be used to protect the direct current side of the inverter.
Fuse cartridges should be selected according to the inverter
rated current.

E 90 range of fuse disconnectors and fuseholders | 15

E 90 50/125 fuse disconnectors

Protection for industrial circuits

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