procurement of 63a welding receptacles for boiler and turbine area of unit 3 and 4 under emiph-ii procurement of 63a welding receptacles for boiler and turbine area of unit 3 and 4 under emiph-ii. , procurement of 63a welding receptacles for boiler & turbine area of u#3&4 under emiph-ii. , receptacle,welding,63a,5pin,w/ rccb/elcb single outlet, wall mounting with decontactors (3p+n+e), cable gland entry i. one ms box with suitable paint & ip 65 protection ii. one abb /siemens make 63a rccb sensitive to 30 ma leakage current (make: abb/siemens/schneider). measurement: 600(h)*400(l)*200(b) mm & thickness- 20 swg/0.711mm. iii. one 5 pin (3 p+n+e) welding plug & socket set as per the existing (installed) one for sample purpose. abb/jaibalaji make preferable with ip 67 protection iv. two 4p ,440v, 100a power terminal block suitable for 3.5c*95 sqmm cable connection with loop in loop out facility. v. all internal wiring should be done by suitable colour for ryb phases & neutral (black ) & earth (green. 63a. connections as follows: a. rccb: 16sqmm cu wire required for phase and neutral 10sqmm. cu wire b. 63a socket: 16sq.mm cu wire required for phase and neutral 10sqmm cu wire