hager EU400 NA-protection

Questions and Answers

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thomasnicholasAug 14, 2025
What to do if 8Err78 appears on my hager Relays display?
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  Donna MooreAug 14, 2025
  If '8Err78' appears on the display of your hager Relays, even after two automatic restart attempts and the LEDs K1 and/or K2 are flashing, it indicates an issue with the feedback contacts or switches. Here's what to check: * If feedback contacts are not connected, set 'rel' and 'trel' to 'oFF'. * If feedback contacts are connected, verify the connection. * Adjust the turn-on time under 'rel' and 'trel' to be greater than the switch-on time of the switcher. * Perform a reset by pressing the Set/Reset button for more than 2 seconds.
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christinahernandezAug 17, 2025
Why does 8EEEE8 or 8-EEE8 appear on my hager EU400 NA-protection display?
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  David KnightAug 17, 2025
  If you see '8EEEE8' or '8-EEE8' on the display of your hager Relays, it means the measured voltage, frequency, or vector surge is either too high or too low. Ensure that your measurements are within the specified range.
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stephanie62Aug 20, 2025
What to do if 8Err88 appears on the display of my hager EU400 NA-protection Relays?
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  John RamosAug 21, 2025
  If '8Err88' is displayed on your hager Relays, it indicates a hysteresis error. To resolve this, make sure the upper threshold value is set higher than the lower threshold value. Check and adjust the threshold values accordingly.
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Kevin JohnsonAug 23, 2025
What to do if 8noY18 or 8noY28 appears on my hager Relays display?
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  Michael RobertsAug 25, 2025
  If '8noY18' or '8noY28' is displayed on your hager Relays, it indicates that the feedback contact is either not connected or the switch isn't working. Check the connection and the functionality of the switch. Note that '8noY28' is normal in Pr2 at Test 2.
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David BryantAug 27, 2025
What does 8Al 8 and LED Q3 (f>) on my hager EU400 NA-protection mean?
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  Anne RiosAug 27, 2025
  If '8Al 8' is displayed and LED Q3 (f>) is on, even when the reading is within a good range, it indicates an incorrect hysteresis setting for 'F'. Check the hysteresis setting for the reset point, ensuring it is set above 50 Hz.
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latoya99Aug 30, 2025
What does 8StbY8 on my hager EU400 NA-protection display mean?
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  Jordan LewisAug 30, 2025
  If '8StbY8' appears on the display of your hager Relays, it indicates that the device is in standby mode because E1-E2 is closed. Verify the parameter 'uSr'.
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ulyonsSep 3, 2025
Why does 8Err48 appear on my hager Relays display?
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  gloverashleySep 3, 2025
  If '8Err48' is displayed on your hager Relays, it indicates a tolerance error due to an internal measurement value deviation between both channels. You can attempt to resolve this by performing a reset of the interrupt control voltage for more than 5 seconds.
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Connor HuffSep 6, 2025
What to do if 8Err98 appears on the display of my hager EU400 NA-protection?
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  Mrs. Lindsey LewisSep 6, 2025
  If '8Err98' appears on the display of your hager Relays, it indicates a parameter error. You should reset the device to its factory settings.
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Johnny WalkerSep 9, 2025
Why are the voltage values implausible on my hager EU400 NA-protection?
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  Joe AllenSep 9, 2025
  If you are getting implausible voltage values on your hager Relays, it could be because 'Pr' is selected with 'N', but 'N' is not connected. Either select 'Pr' without 'N' or connect 'N'.