LEGRAND DMX3 Maintenance Manual

to ease the planning and scheduling of periodical maintenance of the product. Maintenance and periodical checks are intended to be performed by training and qualified people. Use only original and authorized spare parts and accessories. Before to start, please follow the safety recommendations listed below: - Disconnect device from its supply. Any device part has to be on voltage (power or auxiliary circuitry); please verify insulation. - Breaker must be in OPEN status, with its spring discharged (OFF- DISCHARGED). - Be sure that the breaker has no residual heating to avoid injuries. For correct device handling, please refer to device instruction sheets. Injuries and serious damages to devices could arise if previous indications will not be followed. During maintenance activities described in this manual, people in charge of the work must ensure the safety for people and devices, using every tool and procedure needed for that. Before to start, please verify that: - All connections are tightened with the right torque. - All protective covers are mounted in the right way. - The breaker is in OFF-DISCHARGED status. It’ s recommended to use the original maintenance kit. It’ s recommended to save and store every maintenance action done on every device. In any circumstance, Legrand will never be considered responsible on device damages if periodical maintenance actions will be done not following indications contained in this manual.

different by IEC standards, it’ s recommended to plan and schedule a periodical maintenance (according to this manual), in order to: - Verify product goodness. - Identify damaged parts and/or accessories. - Organize preventive actions to avoid emergencies. It’ s recommended to save and store every maintenance action done on every device. In the following tables it will be possible to find all Level 1 and Level 2 maintenance action and suggested frequency. In particular, Level 1 actions (completely explained in this manual) can be performed by trained technicians. For Level 2 actions, please contact Legrand Service support. Level 1 maintenance This maintenance level is intended to be performed by trained and qualified technicians, confident with safety standard requirements for circuit breakers on distribution systems. All these procedures are explained in this manual.

08/01/18 14:48 LE10707AA 35-68 51 LE10707AA LE10707AA LE10707AA LE10707AA LE10707AA LE10707AA LE10707AA