ABB WA4-14 Quick Start Manual

PRODUCT-DETAILS
WA4-14
WA4-14 250-500V50/60HZ-DC Mechanical
Latching Unit
Ogólne informacje
Extended Product Type
ID Produktu
Numer EAN
Opis katalogowy
Opis
Charakterystyka zamówienia
Numer EAN
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
The WA4 block contains a mechanical latching device with electromagnetic impulse
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.
• electrically by an impulse (AC or DC) on the WA4 block coil (the coil is not designed to be
• manually by pressing the pushbutton on the front face of the WA4 block.
The WA4 block is clipped onto the front face of the 1-stack contactor where it takes up two
The two other slots may accept CA4 single pole auxiliary contacts (1 block on each side of
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
WA4-14 250-500V50/60HZ-DC Mechanical Latching Unit
unlatching (AC or DC) or manual unlatching.
Contactor opening can be controlled:
slots in central position (see fig. below).
details part of each contactor type.
WA4-14
1SBN040100R1014
3471523131095
contactors.
Operation
permanently energized)
Mounting
the mechanical latch).
3471523131095