ABB WA4-14, Быстрый старт

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WA4-14 250-500V50/60HZ-DC Mechanical
Latching Unit
WA4-14
Extended Product Type WA4-14
ID Produktu 1SBN040100R1014
Numer EAN 3471523131095
Opis katalogowy WA4-14 250-500V50/60HZ-DC Mechanical Latching Unit
Opis
The WA4 mechanical latching unit for AF09 ... AF96 contactors and NF contactor relays
ensures that the contactor or contactor relay remains switched on even if there is a lack or a
failure of voltage. Standard contactors can be easily converted into compact latched
contactors.
The WA4 block contains a mechanical latching device with electromagnetic impulse
unlatching (AC or DC) or manual unlatching.
Operation
After closing, the contactor continues to be held in the closed position by the latching
mechanism should the supply voltage fail at the contactor coil terminals.
Contactor opening can be controlled:
• electrically by an impulse (AC or DC) on the WA4 block coil (the coil is not designed to be
permanently energized)
• manually by pressing the pushbutton on the front face of the WA4 block.
Mounting
The WA4 block is clipped onto the front face of the 1-stack contactor where it takes up two
slots in central position (see fig. below).
The two other slots may accept CA4 single pole auxiliary contacts (1 block on each side of
the mechanical latch).
Additional CAL4 can be fitted on the side of the contactor in respect to the total number of
built-in or additional N.O. and N.C. auxiliary contacts as described in the accessory fitting
details part of each contactor type.
Ogólne informacje
PRODUCT-DETAILS
Charakterystyka zamówienia
3471523131095 Numer EAN