DC Volt Trip



DIN rail mounting protection relays for use in single and three phase systems. Available in 55mm x 112mm or 100 x 112mm DIN rail cases


For over protection, under protection and combined under & over protection available in AC current AC voltage & frequency versions. Millivolt trip, DC voltage trip, Reverse Power, Phase sequence & Phase balance relays also available in our extensive range of protection relays..

Selection Guide

M200-TVU DC volts under trip
M200-TVO DC volts over trip
M200-TVC DC volts combined trip

Typical Applications

The M200 DC voltage trip are commonly used for monitoring battery voltage conditions, but can be used in any application where dc voltage level is critical. The user is provided with an adjustable set point of 0-80% on under units and 40 to 120% on over units.

The differential is internally set at 5%, no time delay is provided. As is common with all M200 relays, on over units the relay de-energises when the input signal goes below the trip point. A red LED indicates the state of the relay whilst a green LED indicates the state of the power supply

Technical Specification

Rated value Un 1 < 50 volt
Impedance 10k Ohm / Volt
Overload 1.5 x Un continuous 2 x Un for 3 seconds
Range Over Adjustable 40% to 120%
Range Under Adjustable 0% to 80%
Repeatability Better Than 0.5% of full span
Differential Fixed 5%
AC Voltage 115/230/400V ± 25% / 45-65Hz / 2VA
DC Voltage 24 volt (±20% / galvanically isolated)<3
Single units Approx 0.4kg. 55mm case
Combined Unit Approx 0.6kg. 100mm case


Product Code Input Vn Aux Freq Options
M200-TVU 24V 110V 50Hz


1 AC Auxiliary in range 57.7 to 480 volts
2 Calibration at nominal Hz 35…400Hz
3 Calibration at temperature other than 23ºC

Connection Diagrams