The Macromatic VMP110D is a voltage monitor relay. This 8 Pin plug-in relay has a nominal voltage of 110V DC. It checks for over or under voltage errors and has an output of 10A DPDT. The VMP110D has adjustable pick-up voltage, a fixed drop-out time delay and a fixed drop-out voltage. The LED indicator on the VMP110D is red to show when the relay is energized or green when it is not. It uses an 8 Pin 70169-D octal socket and features true RMS voltage measurement for more precise monitoring. Note: Image is an approximation. Actual part may differ.

Specifications

Relay Function- Over/Undervoltage
Nominal Voltage- 110V DC
Output- 10A DPDT
Pick-up Voltage Range- 83-138V DC
Drop-out Voltage Range- 62-130V DC (95% of Pick-Up)
Setting Accuracy- Max Setting (Adjustable): +5%, -0%
Min Setting (Adjustable): +0%, -50%
Fixed Voltage Setting: +/- 2%
Repeatability- <1%
Load- <2VA
Sensing Accuracy- Constant conditions within specifications: +/-2%
Variable conditions within specifications: +/- 5%
Operating Temperature- -28 C to 65 C (-18 F to 149 F)
Storage Temperature- -40 C to 85 C (-40 F to 185 F)
Voltage Tolerance- +/-50% of Nominal Voltage
Output Contacts- 10A @ 240V AC, 7A @ 30V DC, 1/4HP @ 120/240V AC, C300
Life- Mechanical: 10,000,000 Operations, Full Load: 100,000 Operations
Response Time- Pick-up: 0.5 sec, Drop-out: 0.5 sec
Reset- Automatic
Transient Protection- 2000V for IEC 61000-4-5 Level 3 (+/-2kV)
Dimensions- 2.4" Height x 1.7" Width x 3.5" Depth
Approvals- UL and CUL recognized, CE, UL & CUL listed (with Socket)

When the voltage stays above the preset pick-up voltage (83-138V DC) for a longer period than the pick-up time delay, then the unit is energized. If the voltage goes below the drop-out for a longer duration than the drop-out time delay, then it de-energizes. The drop-out time delay is fixed at 0.5 seconds. Whether the VMP110D monitors for undervoltage or overvoltage situations is based on the type of output contacts being used.

Overvoltage
Overvoltage protection utilizes a normally closed contact. The voltage has to stay below the max setting for the load to be energized while the relay itself remains de-energized. If the voltage goes above this level, the load de-energizes and the relay energizes until voltage goes back down.

Undervoltage
Undervoltage monitoring requires a normally open contact. The load stays on and the relay is energized so long as the voltage stays above the minimum setting. Voltage going below the minimum de-energizes both the load and the relay.

Macromatic VMP Series Relay Installation Instructions

Macromatic VMP110D Voltage Monitor Relay

Macromatic 110V DC Over/Undervoltage Monitor Relay, Fixed Time Delay

Macromatic VMP110D Voltage Monitor Relay