Protech megaMAX Manuel d'utilisateur télécharger pdf (Page 21)

MNS Light F, MNS Light SR, Catalogue 1TSC 2210-EN, ed. 2, March 1999

Design

The cubicle is designed for withdrawable or fixed mounted

circuit-breakers (MCCB) in sizes from 630 to 1600 A, 3 and 4-

pole versions.

The cubicle has three doors:

- the upper door has space for measurement instruments that

are available as an option.

- the middle door covers the circuit-breaker and terminal

blocks.

- the lower door covers the cable connections for the cubicle

with cables from below.

Connection options

The following connection options are available:

Cable from below (A)

above (E)

. The cubicle is equipped

with cable connector and anchor rail.

Busbar from above (B).

The cubicle has busbar terminals

above the roof panel.

Sectioning (C)

. Available for supply from the right and left.

Busbar trunking system (D).

The cubicle must be

supplemented with terminal unit connector. Busbars above

the circuit-breaker supplied with the terminal unit.

Circuit-breaker

The circuit-breaker is a MCCB of type ABB SACE Isomax and

has the following functions:

- short-circuit protection in the form of a direct magnetic

overcurrent release, individually settable on each phase

- adjustable thermal overload release

- two change-over auxiliary contacts

- a shunt release

- a signal contact

Earth switch (option)

Protective earthing can be made to both the upper and lower

part of the circuit-breaker using an integrated earthing switch

type Strömberg OETL.

Data for circuit-breaker cubicle MCCB at 35 °C

ambient temperature

Standard SS EN 60 947-2

Size 630 800 1250 1600

Rated current

IP 21, IP31, IP 41 630 A 800 A 1250 A 1600 A

IP 43, IP54 500 A 630 A 1000 A 1250 A

Circuit-breaker cubicle MCCB

Dimensions

500

13 M

2129

13 M

20 450

1 2 ... 16 17 18 19 20 21 22 23 24 25 26 ... 67 68

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Protech megaMAX Manuel d'utilisateur Page 21

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