Brass Electrical & Switchgear Components
Brass terminals, pins, contacts, neutral links, earth bars and custom switchgear parts. Tin, silver and nickel plating. Made in Jamnagar.
Brass for energy grids and panels
Brass electrical terminals, pins and contacts
Precision turned brass pins, socket connectors, terminal blocks and male / female contacts for use in energy grids, control panels, switchboards and industrial sockets.
- ✓ Material: free-cutting brass CuZn39Pb3, C36000
- ✓ Forms: pins, sockets, terminal blocks and contacts
- ✓ Plating: tin, silver or nickel
- ✓ Terminal blocks: designed to IEC 60947-7-1
Terminal types
| Terminal type | Wire capacity | Plating thickness | Voltage rating |
|---|---|---|---|
| Solid male and female plug pins | 1.5 to 35 mm² wire | 3 to 10 µm (nickel / tin) | 250 V AC / 415 V AC |
| Panel board screw terminals | Up to 120 mm² cable | 5 µm silver / electro-tin | 600 V to 1000 V |
| Current transformer (CT) pins | M3 to M12 threaded studs | Passivated / tin plated | High-voltage isolator systems |
Brass Grade Table
| Grade | Standard | Copper (%) | Lead (%) | Typical use |
|---|---|---|---|---|
| IS 319 Grade 1 | IS 319, free-cutting brass | 56.0 to 59.0 | 2.0 to 3.5 | General turned parts, nuts, fittings |
| IS 319 Grade 2 | IS 319, free-cutting brass | 60.0 to 63.0 | 2.5 to 3.7 | Fast turning of fine detail |
| CW614N (CuZn39Pb3) | EN 12164 | 57.0 to 59.0 | 2.5 to 3.5 | Cable glands, inserts, fittings |
| CW617N (CuZn40Pb2) | EN 12164 | 57.0 to 59.0 | 1.6 to 2.5 | Parts that are forged then machined |
| C36000 (CW603N, CuZn36Pb3) | ASTM B16 | 60.0 to 63.0 | 2.5 to 3.7 | Terminals, pins, precision turned parts |
Plating options
| Plating | Corrosion and oxidation resistance | Electrical performance | Max working temperature |
|---|---|---|---|
| Electro-tin | Excellent anti-oxidation | High contact rate | Up to +150 °C |
| Silver | Superior, low-resistance contact | Maximum power transmission | Up to +200 °C |
| Nickel | High mechanical wear resistance | Standard power transmission | Up to +180 °C |
Primary Applications
Power distribution
Heavy-duty male and female plug pins for energy metering and sub-station panels.
Switchboards and control gear
Screw terminal blocks and interconnect pins for motor control centers.
Industrial plug sockets
Multi-pin brass contacts for IP67 weatherproof power sockets.
Standard metric and custom multi-hole bars
Neutral links and earth bars
Brass neutral bars, earthing strips and busbars for distribution boards, circuit breakers and control panels, giving a safe neutral and earth connection.
- ✓ Length: 4 ways up to 1 metre (100+ ways custom)
- ✓ Screws: brass or zinc-plated steel
- ✓ Mounting: DIN rail, base mount, stand-off
- ✓ Cross section: 6 × 9 mm, 8 × 12 mm, 10 × 15 mm, custom
Standard configurations
| Product | Hole count | Screw thread | Bar section (W × H) |
|---|---|---|---|
| Standard metric neutral bars | 4, 6, 8, 10, 12, 14, 18, 24 holes | M4, M5, M6 | 6 × 9 mm / 8 × 12 mm |
| Heavy-duty earth bars | 1 metre strip, cut to length | M6, M8, M10 | 10 × 15 mm / 12 × 20 mm |
| Disconnecting neutral links | 2 to 8 holes, disconnecting type | M6 / M8 with copper link | 10 × 12 mm custom profile |
Brass Grade Table
| Grade | Standard | Copper (%) | Lead (%) | Typical use |
|---|---|---|---|---|
| IS 319 Grade 1 | IS 319, free-cutting brass | 56.0 to 59.0 | 2.0 to 3.5 | General turned parts, nuts, fittings |
| IS 319 Grade 2 | IS 319, free-cutting brass | 60.0 to 63.0 | 2.5 to 3.7 | Fast turning of fine detail |
| CW614N (CuZn39Pb3) | EN 12164 | 57.0 to 59.0 | 2.5 to 3.5 | Cable glands, inserts, fittings |
| CW617N (CuZn40Pb2) | EN 12164 | 57.0 to 59.0 | 1.6 to 2.5 | Parts that are forged then machined |
| C36000 (CW603N, CuZn36Pb3) | ASTM B16 | 60.0 to 63.0 | 2.5 to 3.7 | Terminals, pins, precision turned parts |
Bases and mounting
| Base | Material | Properties | Mounting |
|---|---|---|---|
| DIN rail base | High-grade nylon 66 / polycarbonate | 11 kV/mm, flame retardant (UL 94 V-0) | 35 mm DIN rail |
| Phenolic resin / FRP base | Bakelite / glass-reinforced polymer | High heat resistance (+180 °C) | Base mount |
| Direct panel stand-off | Threaded brass hex stand-off on an insulating base | High mechanical shear strength | M5 / M6 screws |
Primary Applications
Distribution boards
Main neutral bars for residential and commercial consumer units.
Earthing panels
Central earth bonding bars for high-voltage panel boards and telecom racks.
Switchgear wiring
Multi-way terminal strips for neat control cabinet wiring.
Precision mechanical switch parts
Custom switchgear hardware
Precision brass parts, inside and outside the switch, for MCB, MCCB, ACB, isolators and high-voltage power switches. Made accurately for arc resistance and long mechanical life.
- ✓ Parts: moving contacts, hinge assemblies, bus terminals
- ✓ Tolerance: ±0.008 to ±0.02 mm depending on part (see table)
- ✓ Operations: milling, threading, slotting, silver brazing
- ✓ Design: built for high arc and high temperature
Components
| Component | Process | Accuracy | Key feature |
|---|---|---|---|
| MCB / MCCB terminal clamps | Forging + CNC milling and tapping | ± 0.015 mm | High-torque screw clamping strength |
| Switch actuator shafts and pins | Swiss CNC lathe turning | ± 0.008 mm | Smooth, wear-resistant friction joint |
| Moving and fixed brass hinges | Stamping + precision machining | ± 0.02 mm | High thermal endurance in the arc chamber |
Brass Grade Table
| Grade | Standard | Copper (%) | Lead (%) | Typical use |
|---|---|---|---|---|
| IS 319 Grade 1 | IS 319, free-cutting brass | 56.0 to 59.0 | 2.0 to 3.5 | General turned parts, nuts, fittings |
| IS 319 Grade 2 | IS 319, free-cutting brass | 60.0 to 63.0 | 2.5 to 3.7 | Fast turning of fine detail |
| CW614N (CuZn39Pb3) | EN 12164 | 57.0 to 59.0 | 2.5 to 3.5 | Cable glands, inserts, fittings |
| CW617N (CuZn40Pb2) | EN 12164 | 57.0 to 59.0 | 1.6 to 2.5 | Parts that are forged then machined |
| C36000 (CW603N, CuZn36Pb3) | ASTM B16 | 60.0 to 63.0 | 2.5 to 3.7 | Terminals, pins, precision turned parts |
Materials and finishes
| Material | Grades | Hardness | Finish |
|---|---|---|---|
| Brass alloys | CuZn37, CuZn39Pb3, C37700 (forging grade) | HB 90 to 140 | Silver plating, lead-free tin plating |
| Special bronze alloys | Phosphor bronze (C51000), aluminium bronze | HB 150 to 200 | Natural passivated, anti-flash plating |
Primary Applications
Circuit breakers (MCB / MCCB / ACB)
Terminal clamps and arc chute mechanical housings.
Changeover and load-break switches
Heavy-duty brass moving contacts, rotary switch shafts and detent pins.
High-voltage isolators
Weather-sealed hinge assemblies and earthing terminals.