voltage monitor relays | plug-in
Monitors AC single phase and
DC voltages
Provides voltage band
(window) protection
Wide range of user-adjustable
Over Voltage and Under
Voltage settings
Fixed or adjustable time delay
on drop-out
LED indicates output relay
status
Compact plug-in case utilizing
industry standard 8 pin octal
socket
10A DPDT output contacts
(with appropriate socket)
VOLTAGE BAND (WINDOW)
12-120V | VW Series
Voltage Band Relays provide protection to equipment that is required to operate
within an upper and lower voltage limit. As long as the operating voltage remains
within an OVER and UNDER voltage range, the internal relay stays energized. If
the operating voltage falls outside this range, the relay will drop-out.
When nominal operating
voltage with a value between
the UPPER and LOWER
setting is applied, the internal
relay will energize (Pick-up).
If the operating voltage falls
outside the preset OVER trip
point (adjustable 100-125% of
nominal) or UNDER trip point (adjustable 75-100% of nominal) for a period longer
than the drop-out time delay (t), the relay will de-energize (Drop-out). When the
voltage returns to normal (within the preset OVER and UNDER trip points), the unit
automatically resets and the relay energizes. Choose between a unit with fi xed
drop-out time of 500ms or one with an adjustable 0.5-10 second drop-out time.
Fixed Drop-Out Time Delay (500ms)
OVER UNDER
MONITORED VOLTAGE VOLTAGE PRODUCT WIRING/
VOLTAGE RANGE RANGE NUMBER SOCKET
\ 24V AC 24-30V AC 18-24V AC VWP024A 8 Pin Octal
120V AC 120-150V AC 90-120V AC VWP120A 70169-D
12V DC 12-15V DC 9-12V DC VWP012D
24V DC 24-30V DC 18-24V DC VWP024D
48V DC 48-60V DC 36-48V DC VWP048D
110V DC 110-137V DC 83-110V DC VWP110D DIAGRAM 20
Adjustable Drop-Out Time Delay 0.5 - 10 Seconds
OVER UNDER
MONITORED VOLTAGE VOLTAGE PRODUCT WIRING/
VOLTAGE RANGE RANGE NUMBER SOCKET
24V AC 24-30V AC 18-24V AC VWKP024A 8 Pin Octal
120V AC 120-150V AC 90-120V AC VWKP120A 70169-D
12V DC 12-15V DC 9-12V DC VWKP012D
24V DC 24-30V DC 18-24V DC VWKP024D
48V DC 48-60V DC 36-48V DC VWKP048D
110V DC 110-137V DC 83-110V DC VWKP110D DIAGRAM 20
Sockets & Accessories available
800.238.7474
www.macromatic.com
sales@macromatic.com
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