About us Larsen & Toubro is a technologydriven USD 8.5 billion company that infuses engineering with imagination. The Company offers a wide range of advanced solutions in the field of Engineering, Construction, Electrical & Electronics, Machinery and Information Technology. L&T Switchgear, which forms part of the Electrical & Automation business, is India's largest manufacturer of low voltage switchgear, with the scale, sophistication and range to meet global benchmarks. With over four decades of experience in this field, the Company today enjoys a leadership position in the Indian market with growing presence in international markets. It offers a complete range of products including controlgear, powergear, motor starters, energy meters, wires and host of other accessories. Most of our product lines conform to international standards, carry CE markings and are certified. Switchgear Factory, Mumbai
Range of MNX Contactors & Relays L&T now introduces the MNX range of Contactors and Relays. The most rugged and user friendly Contactors and Relays available today. Three Pole Power Contactors Type MNX Range from 9 AC Conformance to IEC 0971 / IS 1971 Thermal Overload Relays Type MNX R Direct Mounting on MNX Contactor Builtin single phasing protection
Pole Power Contactors Catalogue No. Conformance to standards Power Contacts No. of poles Rated insulation voltage, Ui Rated impulse withstand voltage, U i Rated making capacity Amp Rated breaking capacity Amp Conventional thermal current, Ith Utilization category AC1 0 At 55 C Utilization category AC Motor duty : Ø, 15V, 50Hz Utilization category AC Utilization category AC Operational current / e for AC Utilization category at 15V,Ø, 5OHz for,00,000 operating cycles Capacitor switching delta connected: 15V, 50Hz *** Max. Permissible peak inrush current, / p for capacitor switching DC 1 V DC 1 0V DC ratings (with poles in series) DC V and AC coil operation DC 0V DC 5 V DC 5 0V Mechanical life, No. of operating cycles Max. frequency of operations: Operating cycles/hr Service Temperature * With 1NC Auxiliary Contacts ** Data Available on request *** For Capacitor Switching, please connect inductor in series # Add On block can be ordered separately 0Hz & 50/0HZ Coils available on request. Mechanical Utilization Category AC1 Utilization Category AC Utilization Category AC Utilization Category AC Lug (mm ) Link (mm ) Main terminal capacity Solid Conductors (mm ) Multi strand conductors (mm ) Auxiliary Contacts No. of builtin auxiliary contacts 0 Conventional thermal current, / th at 55 C AC15 rating at 15V, 50Hz Terminal capacity (Solid or multi strand conductors (mm ) Coil Voltage available for 50 Hz Uc V Pickup Holdon Limits of operation VA CosØ VA Watts Pickup (%Uc) Dropoff(%Uc) MNX 9 CS 9 / 7* 90V 50 00 kw / 5.5hp / kw / 5.5hp / 5.5A kvar 570A A 15x 700 000 00 0 C to +55 C 1 x x 1NO or 1NC 8 5 5 5 MNX 1 CS 98 / 9* 90V 50 50 0A 1 5.5kW / 7.5hp / 1 5.5kW / 7.5hp / 1 7.1A 7.5 kvar 1 1 1 1 1 7.5A 15x 700 000 00 0 C to +55 C 1 x x 1NO or 1NC 8 5 5 5 MNX 18 CS 90 / 1* 90V 50 50 0A 9.kW / 1.5hp / 9.kW / 1.5hp / 8A 9 kvar A 15x 700 000 00 0 C to +55 C 1 x x 1NO or 1NC 8 5 5 5 MNX CS 9980 / 81* 90V 8kV 50 50 kw / 15hp / kw / 15hp / 8.5A 9 kvar A 15x 700 000 00 0 C to +55 C 1 x x NO or NC,,, 0/0,15,55 8 5 5 5 MNX 5 CS 9 90V 80 00 kw / 15hp / kw / 15hp / 1.5A 15 kvar 0A 1 700 000 00 0 C to +55 C 1x x x # 8 5 5 5
Technical Data MNX CS 91 MNX0 CS 9190 MNX 5 ST 19000 MNX 50 ST 19001 MNX 70 ST 1900 IEC 0971, BSEN 0971 & IS 1971 MNX 80 ST 1900 MNX 95 CS 91 MNX CS 917 90V 550 500 55A 17kW /.5hp / 17kW /.5hp / 1A 90V 550 500 55A 0A.5kW / 0hp / 0A.5kW / 0hp / 0A 0A 90V 900 85A 5kW / hp / 5kW / hp / 90V 900 85A kw /5 hp / kw / 5hp / 90V 900 0A 70A 7kW / 50 hp / 70A 0kW / 0hp / A 8.5A 90V 900 0A 0kW / 5 hp / 7kW / 50hp / 70A 180 0 A 5kW / 0 hp / 5kW / 0hp / 5A 180 0 A 1 55kW / 75 hp / 1 55kW / 75hp / 1 58A 0 kvar 000A 0A 700 000 00 0 C to +55 C 1x x x 0 kvar 000A 0A 0A 0A 0A 0A 00 000 00 0 C to +55 C 1x x x 0 kvar 00 000 00 0 C to +55 C 1x5 1 x 1.5mm x mm 0 kvar 00 000 00 0 C to +55 C 1x5 1 x 1.5mm x mm 5 kvar A A A A A 00 000 00 0 C to +55 C 1x5 1 x 1.5mm x mm 0 kvar 000A A 00 000 00 0 C to +55 C 1x5 x 1.5mm x mm 5kVAR 500A 00 000 00 0 C to +55 C 1x x 5mm x mm 5kVAR 500A 1 1 1 1 1 1 00 000 00 0 C to +55 C 1x x 5mm x mm # # 8 5 5 5 8 80 5 5 190 0.77 1 5.5 80 5 5 190 0.77 1 5.5 80 5 5 190 0.77 1 5.5 80 5 5 190 0.77 1 5.5 80 5 5 550 0. 80 5 5 550 0. 80 5 5
Technical Data MNX CS 918 MNX 185 CS 919 MNX 5 CS 9 MNX 5 CS 91 MNX 5 CS 91 MNX 00 CS 91 MNX 550 CS 915 MNX 50 CS 97 1800 0 A A 75kW / 0 hp / A 75kW / 0hp / A A 0 1850 90kW / hp / 90kW / hp / A 90A 00 000 00A kw / hp / 0kW / 1hp / 00A 0A 000 00 500 000 00A 500 000 00A 17kW / 19 hp / 180kW / 5 hp hp / / 00kW / 70 hp / 00A kw / 175hp / kw // 190hp / / kw / 00hp / 75A A A 1 5500 500 5 15kW / 5hp / 5 18kW / 5hp / 00A 1 500A 500A 8 55kW / 75hp / 00kW / 7hp / 00A ** 70kVAR 000A 1 1 1 1 1 1 00 000 00 0 C to +55 C 1x x 5mm x mm 0kVAR 500A 00 000 50 0 C to +55 C 1x185 x 0mm x 5mm 15kVAR 500A 00 000 0 C to +55 C 1x185 x 0mm x 5mm kvar 0A 00 000 0 C to +55 C x0 / 1x00 x 50mm x 5mm 175kVAR 7000A 00 000 0 C to to +55 C x0 / / 1x00 x x 50mm x x 5mm 175kVAR 7000A 00A 00A 00A 00A 00A 00A 00 000 0 C to +55 C x0 / 1x00 x 50mm x 5mm 50 kvar ** 5 5 5 5 5 5 0 0 C to + 55 C x 50mm x 5mm x 50mm x 5mm 00 kvar ** 0 0 C to + 55 C x 0mm x 5mm 550 0. 80 5 5 0, 15, 55 90 0. 5 1 80 5 5 0, 15, 55 90 0. 5 1 80 5 5 0, 15, 55 0 0.1 95 5 80 5 5 0, 15, 55 0 0.1 95 5 80 5 5 0, 15, 55 0 0.1 95 5 80 5 5 0, 15 00 5 80 5 5 0, 15 00 5 80 5 5
Technical Data Thermal Overload Relay MNX R MNX R MNX R5 MNX R5L Catalogue Nos. CS909 CS9 CS98 CS90 CS9 CS97 CS99 CS9 CS9 CS91 Range 0. 0. 9 15 9 9 0. 0.5 1 0 0 0 0 0.5 0.75 0 90 90 0. 1 0 50 15 5 15 5 0.9 1.5 5 75 180 00 180 00 1.. 70 50 0 570..0 5.5 7.5.0 9.0 15 1 0 0 Mounting Direct Direct Separate Separate Separate Separate Suitable for Contactors MNX 9, 1,18 MNX 5, 50, 70 MNX 185, 5, 5, 5,, 0 80, 95,, 5, 00, 550 Rated Insulation Voltage Ui 90V 90V 90V 90V Rated Impulse Voltage Uimp kv kv kv kv Service Temp. o 5 C TO 55 C o 5 C TO 55 C o 5 C TO 55 C o 5 C TO 55 C Start / Off / Reset 1 Start & Off / Reset Builtin Contacts NO + 1 NC NO + 1 NC NO + 1 NC NO + 1 NC Rated Operational V A A A A Current for V 5A 5A 5A 5A AC15 utilisation 0 V A A A A Category at 50Hz 80 / 15V 500 V Trip Class 0 Max. frequency of operations Cycles / hr. 0 0 0 0 Main Terminal Capacity Lug (mm ) 50 0 0 Aux. Terminal Capacity Wires (mm ) Note All relays are Ambient Temperature Compensated
Overall Dimensions FrameIII FrameIV Terminal Screws M5 for MNX 5 / 50 M for MNX 70 / 80 Note: Dimensions of Contactors Not Suitable for Din Rail Mounting Screw M8 x 5 0V A.5 Contactors MNX 5/50 MNX 70/80 Dia A 8 8.5 18 1.5 15 1 0V 1 Holes Ø For Mounting 175 175 Mounting Holes for M5 Screws 1L1 L 5L 85 Mounting MNX 5 T1 T T 0 0 0 Mounting 89, ( NO + NC), ( NO + NC) Mounting Holes for M5 Screws 9 9 MNX5/50 MNX70/80 5 5 0V 1L1 L A1 5L 5 15 T1 A T T 0V 17 () (NO + NC) Printed text of Addon Blocks & Top Cover should be Upright when Oblong Mounting Holes On Rear Housing are at Botto, MNX95 MNX MNX FrameV 1coil Terminal Level 0No Level 7No Level 08. 1 18. 1 8 71 7 8 1 1 1 FrameI.8.8.8 FrameII 1.5 1.5 88.5 8.1.1 5.75 88 9..95 95.75 81 8 70 5 0 5 5 81 8.8 70 5 0 5 5 8 M.5 x 9 Cross Screws Mounting Holes to Suit M Screws MNX9 MNX1 MNX18 M x.5 Screws M.5 x 9 Screws Mounting Holes to Suit M Screws MNX5 MNX MNX0 FrameVI M x 0 0V Screw M1 x 0 7 1 0 181 0 5 55 08 15 Mounting Holes for M8 Screws 5 0V 1L1 L 5L 5 1 5 L T L 0V 9 9 15 Mounting 17 (for ) 171(for NO=NC) MNX185 MNX5 175.5.5 170 1 00() 5(NO + NC) MNX5 MNX5 MNX00 MNX550 MNX50 15 Mounting Mounting Holes for M Screw 75 * All dimensions are in mm # Dimension for din rail mounting type available on request.
Overall Dimensions MNX R Relay MNX R Relay MNX R5 / 5L Relay 99.5 9 5.5 9 1 1 8 1.5 1.5 8 * All Dimensions are in mm
Accessories & Spares Contactor Type Aux. Add on Block Mechanical Interlock Kit Surge Suppressor Spare Coil Spare kit Frame 1 NO CS9 MNX 9 MNX 1 MNX 18 Frame MNX 5 MNX MNX 0 NO + 1 NC NO + NC 1 NO + NC NC NO 1 NO + 1 NC NC 1 NO CS9 CS9 CS95 CS9 CS97 CS98 CS99 CS9 CS91 CS91 CS95 MNX 9 MNX 1 MNX 18 MNX 5 MNX MNX 0 CS91 CS91 CS915 CS917 CS918 CS917 1 NC CS911 Frame MNX 5 MNX 50 MNX 70 MNX 80 First Left First Right Second Left Second Right CS901 CS90 CS90 CS90 CS9197 CS91 CS919 MNX 5 MNX 50 MNX 70 MNX 80 CS919 CS9 CS9151 CS915 Frame MNX 95 MNX 95 CS915 MNX CS9198 CS91 CS919 MNX CS915 MNX CS905 MNX CS9155 CS90 Frame 5 MNX 185 MNX 5 First Left First Right Second Left CS907 CS908 CS9199 CS91 CS919 MNX 185 MNX 5 CS915 CS9157 Second Right Frame MNX 5 MNX 5 CS9159 MNX 5 CS900 CS915 CS9195 MNX 5 CS9 MNX 00 MNX 00 CS9 MNX 550 Builtin CS919 MNX 550 CS91 MNX 50 MNX 50 CS9 Electrical Standard Products Larsen & Toubro Limited Powai Campus, Mumbai 07 Customer Interaction Center (CIC) BSNL / MTNL (toll free) : 1800 5858 Reliance (toll free) : 1800 00 5858 Tel : 0 77 5858 Fax : 0 77 5859 Email : cic@lntebg.com Website : www.lntebg.com SP5079 R 009