supply of various coil under o and m betul circle , computer items : , 30 volt dc tripping coil with assembly suitable for 11 kv stelmec make vcb :- length of coil 36 mm, i.d. 19.8 mm., o.d. 39 mm., resistance 3.6 ohm tolarance + 0.1 ohm., weightcoil 140 gram, total weight with assembly 400 gram. overall length 80 mm. , 30 volt closing coil with assembly suitable for 11 kv stelmec make-vcb :- length of coil 37 mm, i.d. 14 mm., o.d. 31 mm., resistance 3.3 ohm tolarance + 0.1 ohm., weightcoil 120 gram, total weight with assembly 265 gram. overall length 88 mm. , 30 volt tripping coil suitable for 11 kv shreemmake vcb :- length of coil 49 mm, i.d. 24.6 mm., o.d. 53 mm., resistance 2.2 ohm tolarance + 0.1 ohm., weightcoil 360 gram. , 30 volt dc tripping coil suitable for 11 kv essun make- vcb :- length of coil 40 mm, i.d. 26 mm., o.d. 50 mm., resistance 3.3 ohm tolarance + 0.1 ohm., weightcoil 290 gram. , 30 volt dc tripping coil with assembly suitable for 11 kv bhel make vcb :- length of coil 93 mm,(with brass tube of 95 mm.) i.d. 16 mm., o.d. 41 mm., resistance 4.2 ohm tolarance + 0.1 ohm., weight of coil 505 gram, overall length with plunger 141 mm., total weight of coil with assembly 965 gram.(tolarance + 2%) , 30 volt dc tripping coil suitable for 11 kv megawin make-vcb :- length of coil 93 mm, (with brass tube of 95 mm.)i.d. 16 mm., o.d. 41 mm., resistance 4.2 ohm tolarance + 0.1 ohm., weightcoil 505 gram, overall length with plunger 141 mm.