Description
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.
Application
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-A1U | Single phase under current |
| M200-A1O | Single phase over current |
| M200-A1C | Single phase combined current |
| M200-A3U | 3 phase under current |
| M200-A3O | 3 phase over current |
Typical Applications
The M200 AC current relays provide current monitoring and protection in both single and 3 phase systems. Used in applications such as motor protection, load detection and generator control. Under, over and combined under/over units are available. The relay operates when the adjustable trip point is reached. An externally adjustable time delay is provided to prevent nuisance tripping. As is common with all the M200 relays, on over relays the unit energises when the input signal exceeds the trip point. On under units the relay de-energises when the input signal goes beyond the trip point. A red LED indicates the condition of the power supply.
Technical Specifications
| INPUT | |
| Rated value In | 1A or 5A from C.T. 0.2 to 10 Amp direct connected |
| Frequency | 50/60/400Hz |
| Burden | <0.5VA per phase |
| Overload | 2 x In continuous 10 x In for 3 seconds |
| SETPOINT | |
| Range Over | Adjustable 40% to 120% In |
| Range Under | Adjustable 0% to 80% In |
| Repeatability | Better than 0.5% of span |
| Differential | Fixed 5% |
| Time Delay | Adjustable 200mS to 10 seconds |
| AUXILIARY | |
| AC Voltage | 115 / 230 / 400V |
| (±25%/45-65Hz/<2VA) | |
| DC Voltage | 24 volt(±20% / galvanically isolated)<3 watt |
| WEIGHT&CASE | |
| Single Units | Approx 0.4kg 55mm case |
| Combined Units | Approx 0.6kg 100mm case |
Ordering Information
| Product Code | Input | Freq | Aux |
| M200-A30 | 5A | 50Hz | 230V |
Options
| 1 | Adjustable time delay max 30 seconds |
| 2 | AC Auxiliary in range 57.7 to 480 volts |
| 3 | Calibration at nominal Hz |
| 4 | Calibration at temperature other than 23ºC. |
Connection Diagrams
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