Schneider Electric Acti9 iDD40K Differential Circuit Breaker Instructions

Schneider Electric Acti9 iDD40K Differential Circuit Breaker

Product Information

• Specifications
  • Brand: Schneider Electric
  • Trademark: Schneider Electric SE and its subsidiaries
  • Property: Schneider Electric SE or its subsidiaries
  • Copyright: Protected under applicable copyright laws
  • License: Non-exclusive and personal license to consult
  • Maintenance: Must be carried out by a qualified electrician

Product Usage Instructions

• How to Ensure Maintenance of Installation
  • To ensure the maintenance of the installation, follow these steps:
  • Refer to local regulations or guidelines on electrical installation inspection and maintenance.
  • Carry out routine operating checks of residual current devices.
• Routine Operating Checks of Residual Current Devices
  • To perform routine operating checks of residual current devices, follow these steps:
  • Locate the test button on the front panel of the device (marked T).
  • Press the test button to check if the RCD can trip in the presence of an earth leakage current.
  • If the device doesn’t trip, it must be examined to determine if it is out of service.
• Test Frequency
  • The test frequency for residual current devices depends on the environmental conditions and voltage independence. Follow these recommendations:
• Voltage Independent RCDs:
  • After the initial connection and any subsequent reconnection.
  • Every six months for devices installed in AF1* environmental conditions (no dust, corrosion, high humidity, etc.).
  • Every month for devices installed in AF2 to AF4 environmental conditions or highly exposed to voltage surges.
• FAQ
  • Q: Who should carry out the installation, maintenance, and replacement of Schneider Electric products?
  • A: The installation, maintenance, and eventual replacement of Schneider Electric products and equipment must only be carried out by a qualified electrician.
  • Q: What should I do if the residual current device doesn’t trip during the test?
  • A: If the residual current device doesn’t trip during the test, it must be examined to determine if it is out of service.
  • Q: How often should I test residual current devices?
  • A: The test frequency for residual current devices depends on local regulations or guidelines. In the absence of any local regulations or guidelines, Schneider Electric recommends testing as mentioned in the “Test Frequency” section above.

Legal information

• The Schneider Electric brand and any trademarks of Schneider Electric SE and its subsidiaries referred to in this guide are the property of Schneider Electric SE or its subsidiaries.
• All other brands may be trademarks of their respective owners.
• This guide and its content are protected under applicable copyright laws and furnished for informational use only.
• No part of this guide may be reproduced or transmitted in any form or by any means (electronic, mechanical, photocopying, recording, or otherwise), for any purpose, without the prior written permission of Schneider Electric.
• Schneider Electric does not grant any right or license for commercial use of the guide or its content, except for a non-exclusive and personal license to consult it on an “as is” basis.
• The installation, maintenance, and eventual replacement of Schneider Electric products and equipment must only be carried out by a qualified electrician.
• As standards, specifications, and designs change from time to time, the information contained in this guide may be subject to change without notice.
• To the extent permitted by applicable law, no responsibility or liability is assumed by Schneider Electric and its subsidiaries for any errors or omissions in the informational content of this material or consequences arising out of or resulting from the use of the information contained herein.
• As part of a group of responsible, inclusive companies, we are updating our communications that contain non-inclusive terminology.
• Until we complete this process, however, our content may still contain standardized industry terms that may be deemed inappropriate by our customers.

Maintenance of Installation

How to ensure maintenance of the installation

Routine operating checks of residual current devices: local test and loop test

Residual current devices are designed to protect against hazardous earth fault currents.
That is why:

• the electrical installation operation and maintenance standards require these protection devices to be tested at regular intervals
• the IEC 61008 and IEC 61009 series of product standards require such devices to be fitted with a test button (marked “T”) on the front panel.

The user can therefore check and be certain that the device is working correctly. The test button allows the user to check if the RCD can trip in the presence of an earth leakage current. If the device doesn’t trip, it must be examined to determine if the device is out of service.

Test frequency

Residual current devices must be tested as required by local regulations or guidelines on electrical installation inspection and maintenance. In the absence of any local regulations or guidelines, Schneider Electric recommends that the test is carried out:
For Voltage independent RCDs:

• after the initial connection and any subsequent reconnection
• every six months, for devices installed in AF1* environmental conditions (no dust, corrosion, high humidity, etc.)
• every month, for devices installed in AF2 to AF4 environmental conditions or highly exposed to voltage surges.
• Refer to tables on page 5 for the definition of classes of environmental conditions.

For Voltage-dependent RCDs:

• after the initial connection and any subsequent reconnection
• every month, whatever the environmental conditions or exposition to voltage surges.

Procedure

If the RCD doesn’t trip during the test

• This event is mainly due to a cause that is external to the residual current device.
• The table below shows the possible causes, the additional checks and tests to be carried out and the corrective actions to be taken, depending on the results.
• After a corrective action has been performed, repeat the test.

If the RCD doesn’t trip after all the additional actions, it must be tested with an external RCD tester. Some tertiary and industrial installation maintenance regulations require residual current devices to be checked with a specific device

Checking with a RCD tester

If the RCD doesn’t trip after all the additional actions, it must be tested with an external RCD tester. If it is confirmed that it is out of service, it must be replaced immediately. For the tests performed to be valid, these devices must comply with IEC/EN 61557-6.
These devices are used to check:

• the operating voltage
• the tripping threshold (according to the sensitivity IΔn) of the residual current device
• the tripping times (IΔn, 2 x IΔn, 5 x IΔn, etc.).

Procedure

• Disconnect the fixed and portable loads (if the residual current device protects the power outlets).
• Connect the test device to the downstream terminals of the residual current device or to a downstream power outlet.
• the residual current device (RCD) should trip.
• In case of TN method of earthing with RCD short-circuit current, Ik calculated by some testers can be wrong if the measurement is done downstream of the RCD, especially if RCD is 30 mA.
• Measurement shall be done upstream RCD to obtain correct values of Ik.
• The protection provided by the RCD is independent from the value of Ik.

Classification for External

Table 1: classification for external influences in the presence of corrosive or polluting substances and required protective measures (IEC 60364-5-51)

Class as per IEC 60364-5-51| External influence| Characteristics| Applications and examples| Recommendations for equipment characteristics and protective measures
---|---|---|---|---
AF1| Negligible| Negligible quantity or nature of corrosive or polluting agents| –| Normal
AF2| Atmospheric| Presence of corrosive or polluting atmospheric agents| Installations situated by the sea or near industrial zones producing serious atmospheric pollution, such as chemical works, cement works; this type of pollution arises especially in the production of abrasive, insulating or conductive dusts| According to the nature of the substances (compliance to salt mist test according to NF C 20-702: test Ka)
AF3| Intermittent or accidental| Intermittent or accidental action of certain common chemicals| Locations where some chemical products are handled in small quantities and where these products may come only accidentally into contact with electrical equipment; such conditions are found in factory laboratories, other laboratories or in locations where hydrocarbons are used| b Protection against corrosion according to

equipment specification

b Cabinet made of unprotected ferrous materials or natural rubber are unsuitable

b Plastic cabinets are generally suitable

AF4| Continuous| Permanent action of corrosive or polluting chemicals| b Chemical works

b Farms (piggery or dairies)

b Technical room of swimming pool

| Equipment specifically designed according to the nature of substances. It is necessary to specify the nature of the chemical agent to allow the manufacturer to define the type of protection of the equipment. Protection is provided by special paints, appropriate coatings or surface treatments or by choice of material.

Example: a technical local of swimming pool must be considered as AF4 because it is subject to the permanent presence of corrosive chlorinated derivatives. The materials must be specially studied according to the nature of the agents: reinforced A-SI type of Acti9 offer and cabinet in overpressure.

Table 2: choice of residual current device

Product function| Product range| Class as per IEC 60364-5-51
---|---|---
| | AF1| AF2| AF3| AF4
RCCB| Acti9 iID, Acti9 iID K, Acti9 iID bico, RCCB-ID A-SI 125 A| b| A-SI| A-SI and sealed cabinet, class IP65 or higher| A-SI and IP65 electrical cabinet + ventilated room with clean outdoor air
RCCB-ID 125 A, REDs, REDtest| Sealed cabinet,

class IP65 or higher

| Sealed cabinet,

class IP65 or higher

| IP65 electrical cabinet + ventilated room with clean outdoor air
RCD Vigi add-on| Vigi iC40, Vigi iC60, Vigi C120, Vigi NG125| A-SI| A-SI and sealed cabinet, class IP65 or higher| A-SI and IP65 electrical cabinet + ventilated room with clean outdoor air
RCBO| iDPN Vigi, iCV40, DPN Vigi, iSPN Vigi,

Acti9 iC60 RCBO

• Version: 1.0 – 11/05/2023
• www.se.com.

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