CROUZET CONTROL
3 phase over/under voltage relay M3US
Control relay for monitoring 3-phase networks without neutral. Adjustable switch at the front for adjustment of correct voltage in 3-phase networks. The switch's position is not registered until the operating voltage is switched on. If the switch position is changed during operation, all LEDs (LED indications) begin to flash but the unit will continue to function normally with the voltage that was set at the most recent power connection. Monitors under-voltage between the phases that can be set between -2 % and -20 % of Un (measurement voltage) and over-voltage that can be set between 2 % and 20 % of Un. Time delay Tt prevents relay change-over in the event of temporary disturbances and is adjustable between 0.3-30 s. Green LED (Un) indicates supply voltage OK. Yellow LED (R) indicates active relay output.
Over-/under-voltage |
|
1: Over-voltage |
2: Hysteresis |
3: Under-voltage |
4: L1, L2, L3 |
5: Relay |
6: Limit value with time delay for over-/under-voltage |
- Phase control of line voltage
- Wide range input voltage
- 17.5 mm cabinet with DIN rail
- LED indication
Selected variant
Technical data
| Approvals | CE, CSA, RoHS, UL |
|---|---|
| Breaking capacity | 5A, 250V AC/DC |
| Function | Under/Overvoltage |
| IP class connection | IP20 |
| IP class housing | IP30 |
| Lower limit | -2 - -20% |
| Mounting | 35 mm DIN-Rail |
| Output | 2x Relay |
| Selection of rated voltage | 208, 220, 380, 400, 415, 440, 480V |
| Storage temperature max | 70 °C |
| Storage temperature min | -40 °C |
|---|---|
| Supply voltage | 3 x 208-480V AC |
| Temperature operational max | 50 °C |
| Temperature operational min | -20 °C |
| Time delay startup | 0,5 s |
| Time delay when exceeding the limit value | 0,3-30s |
| Upper limit | 2 - 20% |
| Weight | 80 g |
Downloads
Product description
Control relay for monitoring 3-phase networks without neutral. Adjustable switch at the front for adjustment of correct voltage in 3-phase networks. The switch's position is not registered until the operating voltage is switched on. If the switch position is changed during operation, all LEDs (LED indications) begin to flash but the unit will continue to function normally with the voltage that was set at the most recent power connection. Monitors under-voltage between the phases that can be set between -2 % and -20 % of Un (measurement voltage) and over-voltage that can be set between 2 % and 20 % of Un. Time delay Tt prevents relay change-over in the event of temporary disturbances and is adjustable between 0.3-30 s. Green LED (Un) indicates supply voltage OK. Yellow LED (R) indicates active relay output.
Over-/under-voltage |
|
1: Over-voltage |
2: Hysteresis |
3: Under-voltage |
4: L1, L2, L3 |
5: Relay |
6: Limit value with time delay for over-/under-voltage |
Related
OEM introduces IATECH - The Industrial Automation Technology Expo
We are thrilled to announce the launch of IATECH, THe Industrial Automation Technology expo at Leicester Marriott Hotel on 23rd October. The ultimate platform for showcasing our extensive product range and broad business areas, featuring over 50 leading suppliers under one roof!
Automation Components for Specialist Vehicles
The specialist vehicle industry can include automotive and EV, heavy vehicles such as agriculture and rail, and marine. This email takes you through some of the various products we offer for specialist vehicle applications.
Modern Power Distribution
This blog post delves into the key components, current trends, and best practices in power distribution, illustrating the significant impact these systems have on our daily operations and long-term energy strategies.
Lightning and surge protection to safeguard equipment
We shine a spotlight on surge protection devices (SPDs), a crucial yet often overlooked component in industrial settings. Every surge of electricity, every fluctuation in voltage, poses a potential threat to your machinery and systems.
Efficient crimping, punching and stripping
Renowned for high-quality cable cutting and crimping tools, Klauke serves electrical contractors, cable jointers, and linemen across a spectrum of sectors
Case Study - Electro Pneumatic Control Box
At OEM Automatic, we can supply a series of components for your one project. All under one roof. This case study discusses how we supplied several components for our customer's new electro-pneumatic control box.
