Specialist manufacturer and exporter of 11kV–33kV Gang Operated Air Break (GOAB) Switches, Isolators & Disconnectors (200A to 1250A) in Porcelain & Polymer configurations. Manufactured with electrolytic copper contacts and hot-dip galvanized mounting channels for SEBs, DISCOMs, and turnkey EPC projects across India and international markets.
Voltage Class
Current Capacity
Response Rate
Substations Fitted
11kV/33kV GOAB Switch
SMC Distribution Box
Disc Insulator Hardware
Standard engineering data sheet covering all ratings, insulator configurations, and hardware parameters.
| Technical Parameter | 11kV AB Switch (200A / 400A) | 11kV AB Switch (630A / 800A) | 33kV AB Switch (400A / 800A) | 33kV Substation Isolator (1250A) |
|---|---|---|---|---|
| Rated Nominal Voltage | 11 kV (Highest: 12 kV) | 11 kV (Highest: 12 kV) | 33 kV (Highest: 36 kV) | 33 kV (Highest: 36 kV) |
| Rated Continuous Current | 200 Amp / 400 Amp | 630 Amp / 800 Amp | 400 Amp / 800 Amp | 1250 Amp Heavy Duty |
| Insulator Material Type | Brown Glazed Porcelain or Silicon Polymer | Glazed Porcelain / Polymer Composite | Heavy Glazed Porcelain (3-Post) | Solid Core Porcelain Post Type |
| Switch Operation Mechanism | 2-Post Tilting / 3-Post Rotating | 3-Post Centre Post Rotating | 3-Post Rocking / Horizontal Break | Horizontal Centre Break / Pantograph |
| Impulse Withstand (BIL) | 75 kV Peak | 75 kV Peak | 170 kV Peak | 170 kV to 200 kV Peak |
| Main Contact Blades | Electrolytic Copper with Silver Plating | High-conductivity Copper Finger Blades | Self-aligning Spring-loaded Copper | Silver-plated Double Finger Copper |
| Base Frame Channel | 75x40 mm / 100x50 mm Hot-Dip GI | 100x50 mm Hot-Dip Galvanized MS | 125x65 mm Hot-Dip Galvanized MS | 150x75 mm Heavy GI Channel |
| Standard Specification | IS 9921 (Part 1-5) / IS 1818 | IS 9921 / IS 1818 | IS 9921 / IEC 60129 | IS 9921 / IEC 62271-102 |
CEO & Founder
JK Allied Industries
"Our mission is simple — deliver reliable, certified electrical line hardware that powers India's infrastructure. Every product we manufacture carries our commitment to quality, integrity, and progress."
Naved Khan is the visionary CEO and Founder of JK Allied Industries, established in Bankra, Howrah. With deep expertise in the electrical hardware and transmission line industry, he has led the company to become a trusted ISO 9001:2015 certified manufacturer and exporter supplying State Electricity Boards and DISCOMs across India.
Under his leadership, JK Allied Industries has built a reputation for excellence in HT & LT equipment manufacturing — from Gang AB Switches (200A to 1250A) and Porcelain Isolators to Hardware Fittings and Distribution Boxes — serving 1000+ electrical projects pan-India and globally.
JK Allied Industries, founded by Naved Khan, is an ISO 9001:2015 certified manufacturer, exporter and stockist based in Bankra, Howrah, West Bengal (711403). We manufacture complete HT & LT transmission line hardware including Gang AB Switches (200A to 1250A), DO Fuse Sets, Horn Gap Switches, Metal Castings, Pole Fittings, Stay Set accessories, and Overhead Line Materials.
Our firm supplies complete transmission accessories to various State Electricity Boards (SEBs) and DISCOMs across India strictly as per their tender specifications.
Click a category to explore specifications, dimensions, and drawing references.
Gang AB Switches (200A–1250A), 11kV–33kV Porcelain/Polymer Isolators, DO Fuses, Disc Insulators
12 ProductsHT/LT Clamps, PG Clamps, Dead End Clamps, SMC/RDSS Distribution Boxes, Metal Castings
10 ProductsStrain Hardware, Stay Sets, GI Pins, GI Earthing Pipes, Disc Hardware Fittings, Stay Wire
14 ProductsBrowse all 244 HT & LT line hardware products across 42 categories — searchable & filterable
244 ProductsFrom certified HT equipment to fast bulk delivery — here's why power engineers and EPC contractors trust JK Allied Industries.
Our 11kV–33kV equipment meets Indian Power Sector standards, trusted by utilities and EPC contractors.
Reliable logistics network ensures on-time delivery across all Indian states and export destinations.
Direct manufacturer rates without middleman margins for contractors and project tenders.
Complete compliance with tax invoices, routine test certificates, and dispatch documentation.
Dedicated technical sales desk answering questions and RFQs within hours.
One-stop source for complete transmission line hardware, clamps, isolators, and earthing.
Trusted by contractors, engineers and procurement teams across West Bengal and India.
"Excellent quality 11kV Gang AB switches and clamps at very competitive rates. Delivery was prompt and team was highly responsive."
"Ordered SMC distribution boxes in bulk for a substation project — everything met spec and arrived on schedule. Highly recommended."
"The 33kV isolators and pole clamps are heavy-duty and hot-dip galvanized properly. Honest pricing and prompt dispatch."
"Reliable source for overhead line fittings, stay sets, and DO fuses. Matched WBSEDCL specifications perfectly."
For transmission hardware RFQs, tender quotes, or custom line drawings — we typically respond within hours.
Dag 3275/3945, Mishra Para, Bankra Bazar Jora Mandir, Bankra, Howrah, West Bengal – 711403
Naved Khan
