ABB Sace Emax UL Listed, Инструкции по установке, обслуживанию и техническому обслуживанию

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L2275
Emax UL
25/132
Doc. N°
Mod.
RH0109002
Apparatus
Scale
Page N°
Mechanical locks
a) Lock in open position
Different mechanisms are available which allow the power circuit breaker to be locked in the open position.
These devices can be controlled by:
– A key: a special circular lock with different keys (for a single power circuit breaker) or with the same keys (for several power circuit breakers).
In the latter case, up to four different key numberings are available.
– Padlocks: up to 3 padlocks (not supplied): Ø 4 mm.
b) Power circuit breaker lock in connected - TEST ISOLATED - disconnected position
This device can be controlled by a special circular lock with different keys (for a single power circuit breaker) or with the same keys
(for several power circuit breakers (up to four different key numberings are available) and by padlocks (up to 3 padlocks, not supplied - Ø 4 mm).
Only available for power circuit breaker in draw out version to be installed on the moving part.
c ) Accessories for lock in TEST ISOLATED - disconnected position
In addition to the power circuit breaker lock in the connected - TEST ISOLATED – disconnected position, this allows locking only in the disconnected
or TEST ISOLATED positions. Only available for power circuit breaker in draw out version to be installed on the moving part.
d) Accessories for shutter padlocks
Allow the shutters to be padlocked (installed on the cradle) in the closed position. Only available for power circuit breaker in draw out version to
be installed on the cradle.
e ) Mechanical lock on compartment door
Does not allow the compartment door to be opened with the power circuit breaker closed (and power circuit breaker connected for draw out power
circuit breakers) and locks power circuit breaker closing with the compartment door open.
f) Key lock in open position with Kirk lock (internal or front door)
Allows the power circuit breaker to be locked in the open position by means of a lock with Kirk key (not supplied). For uses on fixed power circuit
breakers, the accessory must be requested in combination with the interlock plate for fixed power circuit breaker.
g) Fail Safe device (against racking-out with the springs charged)
Prevents the moving part of the power circuit breaker in the draw out version being racked out of the cradle if the closing springs are charged.
The accessory is supplied as standard for each draw out version power circuit breaker. Only available for draw out version power circuit breaker
to be installed on the moving part.
CAUTION:
Incompatible with the undervoltage release (YU)
Transparent protection covers
a ) Protection covers for opening and closing pushbuttons
These protection covers, applied over the opening and closing pushbuttons, prevent the relative power circuit breaker operations except by using
a special tool.
b) IP54 door protection (NEMA 3/3S/13)
This is carried out by means of a transparent plastic escutcheon plate which fully protects the front of the power circuit breaker and allows IP54
degree of protection to be obtained. Mounted on hinges, it is fitted with a key lock.
Interlock between power circuit breakers
This mechanism makes the mechanical interlock between two or three power circuit breakers (even of different sizes and in any fixed/draw out
version) by means of a flexible cable. The electrical circuit diagram for the electrical changeover by means of a trip unit (to be provided by the
customer) is supplied with the mechanical interlock. The power circuit breakers can be installed vertically or horizontally.
4 types of interlocks are available:
type A: between 2 power circuit breakers (power emergency group)
type B: between 3 power circuit breakers (of 2 power su emergency group)
type C: between 3 power circuit breakers (2 power su bus-tie group)
type D: between 3 power circuit breakers (3 power supplies / a single closed power circuit breaker group)
10.3 Spare parts
– Shields and front escutcheon plate
– Opening solenoid for the PR111-A / PR112-A / PR113-A trip unit
– Arcing chamber
– Closing springs
– Jaw-type isolating contact for cradle of the draw out power circuit breaker
– Sliding ground contact
– Cradle shutters
– Complete pole
– Operating mechanism
– Connection cables between trip units and current transformers
10.2 Mechanical accessories
Mechanical operation counter
This is connected to the operating mechanism by means of a simple lever mechanism. It signals the number of power circuit breaker mechanical
operations. The indication is visible on the front of the power circuit breaker from the outside.
Courtesy of NationalSwitchgear.com