VMKP120A MACROMATIC CONTROLS, VMKP120A Datasheet - Page 2

• Manufacturer Part Number: VMKP120A
• Description: VOLTAGE MONITORING RELAY, DPDT, 120VAC
• Manufacturer: MACROMATIC CONTROLS
• Series: VMr

Specifications of VMKP120A

• Contact Configuration: DPDT
• Power Consumption: 3VA
• Supply Voltage Max: 120VAC
• Relay Mounting: Plug In
• Control Voltage Type: AC
• Relay Terminals: 8 Pin Octal
• Control Voltage: 120VAC
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Operating Modes
These relays can be used as either overvoltage or undervoltage relays, depending on the output contact used:
Overvoltage Relay
Provides protection to equipment that cannot handle excess
voltages. Uses a normally closed contact (N.C.). As long as the
monitored voltage remains below the maximum voltage the
equipment can withstand (Pick-Up Setting), the relay remains de-
energized and the N.C. contact remains closed, keeping the load
energized. If the operating voltage increases beyond the maxi-
mum rating of the equipment, the relay energizes and the N.C.
contact opens, turning off the load. When the voltage falls below
the Drop-Out Setting (hysteresis), the relay de-energizes and the
N.C. contact re-closes, turning on the load.
Application Data
Voltage Tolerance:
+25%/-50% of nominal voltage; AC voltages are 50-60Hz;
No separate supply (input) voltage is required.
Load (Burden): Less than 3VA
Voltage Settings:
Pick-up:
Drop-out: Fixed at 95% of the pick-up setting
Temperature:
-28
Output Contacts:
10A @ 240V AC/30V DC, 1/2HP @ 120/240V AC (N.O.),
1/3HP @ 120/240V AC (N.C.)
Life:
Mechanical: 10,000,000 operations
Full Load: 100,000 operations
Dimensions
1/09
o
to 55
2.4 (60)
o
Adjustable from 85-115% of nominal voltage
C (-20
o
to 131
o
F)
1.7 (43)
VOLTAGE MONITOR RELAYS
Inches (Millimeters)
All Dimensions in
Response Times:
Operate: 500ms
Release: Fixed 500 ms
Indicator LED: Red Steady when Relay is energized; Green
when Relay is Off.
Transient Protection:
10,000 volts for 20 microseconds
Reset: Automatic. Contact Macromatic for information on
units with Manual Reset.
Approvals:
VM Series Over/Undervoltage
2.9 (74)
Undervoltage Relay
Provides protection to equipment that is required to
operate above a certain minimum voltage. Uses a
normally open contact (N.O.). As long as the monitored
voltage is above the minimum value required (Pick-Up
Setting), the relay will energize and the N.O. contact
closes, turning on the load. If the voltage drops below
the Drop-out Setting (the minimum voltage required
minus the hysteresis), the relay will de-energize and the
N.O. contact will re-open, turning off the load.
Low Voltage & EMC Directives
3.5 (89)
EN60947-1, EN60947-5-1
File #E109466
Application Data & Dimensions
Fixed Time Delay on Drop-Out
File #E109466
with
appropriate
socket
12-120V Plug-in
VMKP Only
29