BUREAU OF INDIAN STANDARDS

Type/Size/Grade/Variety and Brand Name for CML No.       4100253977

Date : 05-07-2025


Brand Name :

Type/Size/Grade/Variety :

Name of the product: Low-Voltage Switchgear and Controlgear Part 2 Circuit-Breakers Model No. Legrand (Model : DX3 80A to 125A) Rated Voltages (Cl.4.3.2) Rated operational voltage (Ue) -240V and 415V AC Rated insulation voltage (Ui)- 500V AC Rated impulse withstand voltage (Uimp)- 6 kV peak Rated Currents Conventional free-air thermal current (Ith) -80A to 125A (Cl. 4.3.3) Conventional enclosed thermal current (Ithe) Not Applicable Rated current (In)- 80A to 125A Current rating for circuit-breakers (Ics, Icu)- (Icu)- Legrand (16kA at 240Vac, 16kA at 415Vac) (Ics)- Legrand (16kA at 240Vac, 16kA at 415Vac) Rated Frequency (Cl. 4.3.4) 50/60 Hz Rated duty (Cl. 4.3.5) uninterrupted duty- ‘Iu’ 80A to 125A Selectivity (Cl. 4.4) Category type, A Interrupting Medium (Cl. 3.2) Air-break Method of installation (Cl. 3.7) Fixed Method of controlling the operating mechanism (Operation) (Cl. 3.4) Dependent manual Design / Construction Type (Cl. 3.3) Moulded case Suitability for isolation (Cl. 3.5) Suitable for isolation Provision for maintenance (Cl. 3.6) Non-Maintainable. Type of Releases (Cl. 4.7) 1) shunt release;- - 2) over-current release: Instantaneous, inverse time delay - dependent on previous load: Yes 3) undervoltage release (for opening);- - Type of Supply (ac / dc) (Cl. 4.2) One Phase and Three Phase AC type Number of Pole (Cl. 4.2) One pole (1P), Two poles (2P), Three Poles (3P), Four poles (4P) Pollution Degree (Cl. 6) Pollution Degree 3 Control Circuits (Cl. 4.5) Not Applicable Auxiliary circuits (Cl. 4.6) Not Applicable Integral fuses (Cl. 4.8) Not applicable Degree of Protection IP20 Protection Name of the product: Low-Voltage Switchgear and Controlgear Part 2 Circuit-Breakers Model No. Indoasian (Model: Optipro 80A to 125A), Rated Voltages (Cl.4.3.2) Rated operational voltage (Ue) -240V and 415V AC Rated insulation voltage (Ui)- 500V AC Rated impulse withstand voltage (Uimp)- 6 kV peak Rated Currents Conventional free-air thermal current (Ith) -80A to 125A (Cl. 4.3.3) Conventional enclosed thermal current (Ithe) Not Applicable Rated current (In)- 80A to 125A Current rating for circuit-breakers (Ics, Icu)- (Icu)- Optipro (10kA at 240Vac, 10kA at 415Vac), (Ics)- Optipro (10kA at 240Vac, 10kA at 415Vac), Rated Frequency (Cl. 4.3.4) 50/60 Hz Rated duty (Cl. 4.3.5) uninterrupted duty- ‘Iu’ 80A to 125A Selectivity (Cl. 4.4) Category type, A Interrupting Medium (Cl. 3.2) Air-break Method of installation (Cl. 3.7) Fixed Method of controlling the operating mechanism (Operation) (Cl. 3.4) Dependent manual Design / Construction Type (Cl. 3.3) Moulded case Suitability for isolation (Cl. 3.5) Suitable for isolation Provision for maintenance (Cl. 3.6) Non-Maintainable. Type of Releases (Cl. 4.7) 1) shunt release;- - 2) over-current release: Instantaneous, inverse time delay - dependent on previous load: Yes 3) undervoltage release (for opening);- - Type of Supply (ac / dc) (Cl. 4.2) One Phase and Three Phase AC type Number of Pole (Cl. 4.2) One pole (1P), Two poles (2P), Three Poles (3P), Four poles (4P) Pollution Degree (Cl. 6) Pollution Degree 3 Control Circuits (Cl. 4.5) Not Applicable Auxiliary circuits (Cl. 4.6) Not Applicable Integral fuses (Cl. 4.8) Not applicable Degree of Protection IP20 Protection