LST SWITCHGEA. Motor Starters. Type MN. . Direct-On-Line Starters. Star-Delta Starters LARSEN & TOUBRO LIMITED. Its all about Imagineering TM

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1 LST SWITCHGEA Motor Starters Type MN. Direct-On-Line Starters. Star-Delta Starters LARSEN & TOUBRO LIMITED Its all about Imagineering TM

2 Larsen & Toubro Limited, India's largest manufacturer of low voltage switchgear products introduces the new MN range of starters. These starters are available in Direct-On-Line (DOL) and Star-Delta versions. This range represents the culmination of intensive R&D and extensive field trials. MN starters, comprising MN contactors and MN relays, provide Overload and Single phasing protection to your motors. MN starter family conforms to IS , IEC Starter Range

Sal ;en* Features. Conform to IS 13947 (Part 4) & IEC 60947-4. Built-in single phasing protection. In Star Delta Starters, Star contactor has same rating as Hold-on & Delta.

3 Sal ;en* Features. Conform to IS (Part 4) & IEC Built-in single phasing protection. In Star Delta Starters, Star contactor has same rating as Hold-on & Delta. Suitable for Industrial & Rural applications. Terminal block for ease of termination. Starter enclosure with IP 54 of protection Ap"lications MN starters are available in following versions: Direct-On-Line starter Semi automatic Star-Delta, starter (SASD). Fully automatic Star-Delta, starter () All MN DOL & Star-Delta starters are suitable for 3-Phase Squirrel Cage motors. MN DOL starters are available in following ratings: MN 16 DOL-upto 10 HP (7.5kW). MN 25 DOL-upto 15 HP (11 kw). MN 32 DOL-upto 20 HP (15kW). MN 45 DOL-upto 30 HP (22.5kW). MN 65 DOL-upto 45 HP (33.5kW) MN Star-Delta starters are available in following ratings:. MN 16 Star-Delta-upto 15 HP (11 kw). MN 25 Star-Delta-upto 25 HP (18.5kW). MN 32 Star-Delta-upto 35 HP (26kW). MN 45 Star-Delta-upto 50 HP (37.5kW). MN 65 Star-Delta-upto 75 HP (55kW). MN 80 Star-Delta-upto 90 HP (67.5kW). MN 110 Star-Delta-upto 125 HP (90kW). MN 140 Star-Delta-upto 175 HP (130kW) MN 45, MN 65, MN 80, MN 110 & MN 140 Star-Delta starters are available only in version. Construction MN starters consist of MNX contactors & MN relays. The relay is directly mounted on the contactor. The colour of the sheet steel enclosure is two-toned. The box is powder coated and gray in colour. The cover is powder coated with ivory colour. The push button is flush mounted in an enclosure cover, which has been given an altogether `new look'. Operational Details Relay Setting A screwdriver is used to set the relay indicator (which is on the dial) to the full load current setting. This ensures optimum protection under Overload and Single Phasing of the motor. In case of Star-Delta Starters, the relay must be set at the values In /j (0.58 In) as given in the selection table, since the connected relay carries only the phase current in Motors having Delta connected winding. MN DOL starters. MN 16, 25, 32, 45, 65 DOL starters incorporate type MNX contactors. MN 16, 25, 32 DOL starters incorporate MN 2 relays. MN 45, 65 DOL starters incorporate MN 5 relays. MN Star-Delta Starters MN Star-Delta starters are available in semi automatic and fully automatic versions. MN 16, 25, 32, 45, 65, 80, 110, 140 Star-Delta starters incorporate type MNX contactors. MN 16, 25, 32, Star-Delta starters incorporate MN 2 relays. MN 45, 65, 80, 110, Star-Delta starters incorporate MN 5 relays. MN 140 Star-Delta starters incorporate MN 12L relays. In case of SASD Starters, the motor gets connected in Star connection when the green button is pressed, after releasing the green button motor gets connected in Delta connection. The button must be released only when the motor reaches its normal speed. In case of Starter, motor gets connected in Star connection, when the green button is pressed. An electronic timer automatically performs the changeover function from Star to Delta. 1

Different sized holes with grommets at top & bottom for various cable sizes IP54 Protection class of enclosure makes it suitable for industrial and rural applications.

4 Different sized holes with grommets at top & bottom for various cable sizes IP54 Protection class of enclosure makes it suitable for industrial and rural applications. Earthing screw with proper marking Two-tone colour combinations with box in steel gray & cover in ivory Better corrosion resistance through powder coated enclosure Flush-mounted push buttons. Single Phasing Protection MN relays having phase failure sensitive tripping mechanism provides reliable protection against Single Phasing & Overload conditions. MN relays are compensated for variation in ambient temperature from -5 C to 55 C. IP 54 degree of protection Corrosion resistant powder coated enclosure with IP/54 protection class makes MN starters most suitable for chemical factories, polluted industrial and dusty agricultural environment. Terminal Block MN Star-Delta starters are provided with terminal block with proper terminal marking for ease of wiring. Terminal block can accommodate both aluminium & copper cables. Features & Benefits Base Plate Mounting MN Star-Delta starters are mounted on base plate that can absorb vibrations and it makes MN starters maintenance friendly. Electronic Timer MN Fully Automatic Star-Delta starters are provided with Electronic Timer for high repeat accuracy. Trip Test Facility This facility enables the user to manually check the operation of the trip mechanism. Move the trip slide in the direction shown on the relay. The relay trips with an audible 'Click' sound, indicating that the trip mechanism is in good working order. Off / Reset Push-Button The relay will trip in case of overloads or single phasing conditions. Simultaneously 'Alarm Contact' (97-98) will close. The motor cannot be restarted until the relay has been reset. To reset the relay, allow the bimetals to cool down sufficiently & push this button to reset the trip contact (95-96). If the relay is in reset condition, pressing this push-button will open 'Trip Contact'. But now the alarm contact will not close. This indicates healthy operation of the relay mechanism. The trip contact will again close when this button is released. Auto-Manual Reset Switch There are two modes of reset available : Manual and Auto. By default the relay is in the Manual reset mode and can be converted to Auto reset mode by moving the switch to Auto position marked on the label. 2

5 Type Maximum Motor Rating at 415V, 3 50Hz Chart for MN DOL starers Approx. Full Load Current In HP KW (A) Relay Range ( A) Relay Contactor Recommended Back-up HRC Fuse Type Rating (A) Switch Disconnector Fuse Unit HF 16 FN HF 16 FN HF 16 FN32 MN HF 20 FN 32 MN 2 MNX 18 DOL HF 20 FN HF 25 FN HF 32 FN HF 32 FN HF 32 FN 32 MN HF 32 FN32 MN 2 MNX 25 DOL HF 50 FN 63 MN 32 DOL HF 63 FN HF 63 FN MN 2 MNX 32 HF 63 FN HN/ FN 100 MN HN/ FN 100 MN 5 MNX 45 DOL HN/ FN HN/ FN 100 MN HN/ FN 100 MN 5 MNX 70 DOL HN/ FN 100 Selection Chart for MN DOL Starters Type HN/ FN 100 Maximum Motor Rating at 415V, 3 O 50Hz Approx. Full Load Current In HP KW ( A) Chart for Star-Delta starters p hase Relay Recommended Switch Current Range Relay Contactor Back-up HRC Fuse Disconnector n i /,u (A) Fuse Unit Type Rating (A) MN HF 20 FN 32 SASD/ MN 2 MNX 18 HF 32 FN HF 32 FN32 MN HF 40 FN 63 MN 2 MNX 25 SASD/ HF 50 FN 63 MN HF 63 FN 63 SASD/ MN 2 MNX HN/00 63 FN 100 MN HN/00 63 FN MN 5 MNX 45 HN/00 80 FN HN/00 80 FN HN/ FN 100 MN HN/ FN 100 MN 5 MNX HN/ FN HN/ FN 125 MN MN 5 MNX 80 HN/0 160 Fn 200 MN HN/0 160 FN 200 MN 5 MNX HN/0 200 FN 200 MN HN/1 250 FN 250 MN 12L MNX HN/1 250 FN 250 Selection Chart for MN Star-Delta Starters 3

6 Ordering Information - MN DOL Starter* Example: MN 16 DOL - 240V with relay range 9-15 A Ordering Information - SS94015BOBO Srarter Type Version MN 16 MN 25 MN 32 MN 45 MN 65 Cat. No. SS94351 SS94352 SS94353 SS94017 SS94018 Rated control Relay Range voltage (Us) V c BOBO BODO BOEO COSO COUO COVO COBO COBO CODO COED DOSO DOUG DOVO DOBO DOBO DODO DOEO DOGO DOJO Ordering Information - MN Star- Delta Starter* Example: MN 16 SASD - 360V with relay range 9-15 A Ordering Information - SS94019COBO Srarter Type Version MN 16 MN 25 MN 32 MN 45 MN 65 MN 80 MN 110 MN 140 Cat. No. Rated control voltage (Us) VA, SASD SS94361 SS94363 SS SS94362 SS94364 SS94366 SS94021 SS94022 SS94705 SS94706 SS94707 Relay Range COVO COBO CODO COED DOVO DOBO DODO DOEO DOGO DOJO DOJO DOKO DOMO * Note: These are the stnadard combinations of relay and contactor. Any other combinations can be supplied on request. 4

7 Overall Dimensions 4 MOUNTING HOLES 0 6 -Ol to $l e m I 139 DOL Starters MN 16, MN 25, MN 32 O11 S 200 J IOlmI e 352 I MOUNTING HOLES08.5 Alk 026 Starters MN 45, MN MOUNTING HOLES 011 Starters MN 80F, MN 110F, MN 140F 5

For selection and product demonstration, please contact any of our branch offices listed below: REGISTERED OFFICE AND L&T House A28,lndira Nagar HEAD OFFICE Group MIG - 5 Faizabad Road L&T House,

8 For selection and product demonstration, please contact any of our branch offices listed below: REGISTERED OFFICE AND L&T House A28,lndira Nagar HEAD OFFICE Group MIG - 5 Faizabad Road L&T House, Ballard Estate Padmanabhpur Lucknow P. O. Box 278 Durg Uttar Pradesh Mumbai Tel: , Tel: / 902 / 903 Tel: Fax: Fax: Fax: esp-lko@lntebg.com Website: Al Astronauts Avenue Bidhan Nagar Plot No. 518 ELECTRICAL STANDARD PRODUCTS (ESP) Durgapur th Main Road 501, Sakar Complex Tel: / 952 K.K. Nagar Opp. Gandhigram Rly. Station Fax: Madurai Ashram Road esp-dgp@lntebg.com Tel: /303 Ahmedabad Fax: Tel: , /1 (Faridabad Switchgear Works) esp-mdu@lntebg.com Fax: /4, Delhi-Mathura Road esp-ahm@lntebg.com Faridabad North Wing, Level II, Tel: , Gate 7, Powai 38, Cubbon Road, Post Box 5098 Fax: Mumbai Bangalore esp-fbd@lntebg.com Tel: / 2661 / 2737 Tel: / 325 Fax: Fax: Milanpur Road, Bamuni Maidan esp-bom@lntebg.com esp-blr@lntebg.com Guwahati Tel: B, Farmland, Ramdaspeth 131/1, Zone II Fax: Behind Hotel Radhika Maharana Pratap Nagar esp-gau@lntebg.com Nagpur Bhopal Tel: / 24 Tel: / 8 / , Fatah Maidan Road Fax: Fax: R. O. Box 12 esp-ngp@lntebg.com esp-bho@lntebg.com Hyderabad Tel: , Shivaji Marg, P.O. Box 6223 Plot No. 559, Annapurna Complex Fax: New Delhi Lewis Road esp-hyd@lntebg.com Tel: / 1, Bhubaneswar Fax: Tel: , D-24, Prithvi Raj Road esp-del@lntebg.com Fax: C-Scheme esp-bbi@lntebg.com Jaipur L&T House, P.O. Box 119 Tel: / /1, Dhole Patil Road SCO 32, Sector 26-D Fax: Puna Madhya Marg, P. O. Box 14 esp-jai@lntebg.com Tel: , Chandigarh Fax: , Tel: / 151 Akashdeep Plaza, 2nd Floor esp-pnq@lntebg.com Fax: P. O. Golmuri esp-chd@lntebg.com Jamshedpur rd Floor, Vishwakarma Chambers Jharkhand Majura Gate, Ring Road 10, Club House Road Tel: Surat Chennai Fax: Tel: Tel: / 4 esp-jam@lntebg.com Fax: Fax: esp-sur@lntebg.com esp-maa@lntebg.com Skybright Bldg. M.G. Road Radhadaya Complex 67, Appuswamy Road Ravipuram Junction Old Padra Road Post Bag 7156 Emakulam Near Charotar Society Opp. Nirmala College Kochi Vadodara Coimbatore Tel: , Tel: /11/12 Tel: , Fax: Fax: Fax: esp-cok@lntebg.com esp-bar@lntebg.com esp-cbe@lntebg.com 3-B, Shakespeare Sarani , Dwarakanagar Kolkata Visakhapatnam Tel: /2/3/4/5, Tel: , Fax: Fax: esp-ccu@lntebg.com esp-viz@lntebg.com Product improvement is a continuous process. For the latest information and special applications, please contact any of our offices listed here. L&T SWITCH kllir Electrical Standard Products Larsen & Toubro Limited Powai Campus, Mumbai Tel: Fax: / esp@lntebg.com Website: LARSEN & TOUBRO LIMITED Its all about Imagineering' SP R 10407

HRC Fuse-links Bolted Type HG 2 A - 32 A HQ 2 A A

HRC Fuse-links Bolted Type HG 2 A - 2 A - 630 A HRC Fuse-links Bolted Type Larsen & Toubro Limited, India s largest manufacturer of low tension switchgear, offers FN range of SDFs suitable for Bolted Type