High Quality Transformer Spade Terminals, Bronze Transformer Spades, Transformer Spade Connectors
Price: US$ 11.40/Kilogram
Transformer Spade Connectors, Bronze Transformer Spades, Bronze Transformer conenctors are specialized electrical connectors widely used in transformers and power distribution systems to connect conductors or components. They offer a reliable and secure method for establishing electrical connections between wires, terminals, and other conductive elements. Our Bronze casting foundry in Jamnagar specialises in Bronze spades, Bronze Spade terminals and Bronze Transformer spades- spade connectors.
| Code | ROW TYPE | NO. OF HOLES | STUD SIZE | APPROXIMATE DIMENSIONS | |||
|---|---|---|---|---|---|---|---|
| D | L | W | T | ||||
| BNL58-2 | SINGLE ROW | 2 | 5/8- 11 | 0.88 | 5.06 | 1.37 | 0.31 |
| BNL1014-2 | SINGLE ROW | 2 | 1-14 | 1.38 | 5.12 | 1.93 | 0.34 |
| BNL5811-4 | SINGLE ROW | 4 | 5/8- 11 | 0.88 | 8.50 | 1.37 | 0.31 |
| BNL101-4 | SINGLE ROW | 4 | 1-14 | 1.38 | 8.56 | 1.93 | 0.34 |
| BNL58-2 | DOUBLE ROW | 2 | 5/8- 11 | 0.88 | 4 | 3.5 | 0.25 |
| BNL10-2 | DOUBLE ROW | 2 | 1-14 | 1.38 | 4 | 3.5 | 0.37 |
| BNL58-4 | DOUBLE ROW | 4 | 5/8- 11 | 0.88 | 5.37 | 3.5 | 0.25 |
| BNL10-4 | DOUBLE ROW | 4 | 1-14 | 1.38 | 5.87 | 3.5 | 0.37 |
| BNL58-6 | DOUBLE ROW | 6 | 5/8- 11 | 0.88 | 6.62 | 3.5 | 0.37 |
| BNL10-6 | DOUBLE ROW | 6 | 1-14 | 1.38 | 6.70 | 3.5 | 0.37 |
| BNL58-8 | DOUBLE ROW | 8 | 5/8- 11 | 0.88 | 8.37 | 3.50 | 0.37 |
| BNL10-8 | DOUBLE ROW | 8 | 1-14 | 1.38 | 8.75 | 3.50 | 0.37 |
- Terminal lug and stud mounting holes are 9/16” diameter with 1-3/4” standard NEMA spacing
- Can be supplied with studs bonded to terminal by adding suffix “-SB” to catalog number
- Can be Tin plated or Hot dipped as needed
Transformer Spades, Transformer Spade Connectors, Transformer Spade Terminals, Bronze NEMA Spaced Spade Terminals
We are one of the leading manufacturers and exporters of Transformer Spade Connectors and Terminals from India. We have been supplying high-precision, performance-engineered Transformer Spade Terminals to the global power distribution and transformer manufacturing industry for many decades. These components serve as a critical interface between transformer bushings and external electrical circuits. Designed to meet international dimensional standards and torque specifications, our Bronze and Copper spades ensure high-conductivity and corrosion resistance. We specialize in customized geometry, NEMA hole spacing, and conductor size compatibility, with a focus on fast turnaround, consistent quality, and excellent global support.
Transformer Spades Transformer Spades are flat, heavy-duty conductive plates with one or more holes used to establish mechanical and electrical connections between the transformer bushing and the cable lugs. Manufactured primarily from Aluminium Bronze (C95400/C95800) or High-Conductivity Copper, they are engineered to sustain high fault currents, mechanical loads, and outdoor environmental conditions.
Transformer Spade Connectors These are mechanically robust, threaded and holed components designed for bolting directly to transformer bushings. The spade connectors ensure easy assembly, repeatable fastening, and long-term conductivity. Often custom designed to accommodate hole spacings like NEMA 2-hole or 4-hole patterns, they are widely used in switchgear, transformers, and busbar systems.
Transformer Spade Terminals Spade Terminals are often supplied with machined threads, chamfered bolt holes, and are sometimes plated with Tin or Silver to improve contact performance. These terminals are designed to match dimensional and material guidelines under standards like ASTM B124, DIN 43673, and IEC 60071.
Bronze NEMA Spaced Spade Terminals These terminals are manufactured from Aluminium Bronze C95800 or Silicon Bronze, known for their strength, conductivity, and corrosion resistance. Designed specifically for NEMA standard hole spacing, they are used in pad-mounted, pole-mounted, and power transformer applications. The design ensures interchangeability and compatibility with industry-standard hardware.
Manufacturing Process The process includes billet cutting, forging or hot stamping, precision CNC machining, drilling, threading, deburring, and surface finishing. In-house die-making ensures dimensional repeatability and production flexibility.
Machinery Used
- Hydraulic and friction forging presses
- CNC vertical machining centers
- Multi-axis drilling and tapping machines
- Coordinate measuring machines (CMMs)
- Abrasive and vibratory deburring systems
Material Grades Used
| Material Type | Standard | Usage |
|---|---|---|
| C95800 Aluminium Bronze | ASTM B148 | High strength, corrosion-resistant connectors |
| C95400 Bronze, C95500 Aluminum Bronze | ASTM B148 | High mechanical load applications |
| C11000 Copper, C83600 Red Brass, Leaded Bronze | ASTM B187 | High conductivity terminals |
Material Properties
| Property | C95800 Bronze | C95400 Bronze | C11000 Copper |
| Tensile Strength (MPa) | 620 | 500 | 210 |
| Electrical Conductivity | 14% IACS | 22% IACS | 100% IACS |
| Corrosion Resistance | Excellent | Excellent | Good |
| Operating Temp (°C) | up to 300°C | up to 250°C | up to 150°C |
Finish Options
- Mill Finish
- Electro Tin Plated (RoHS compliant)
- Silver Plated (optional for high-current)
- Shot Blasted and Passivated (on request)
Tolerances
- Dimensional: ±0.2 mm
- Thread Class: ISO Metric or UNC (as per drawing)
- Flatness: 0.05 mm/100 mm
Packaging and Shipping Parts are individually wrapped or foam-padded and packed in labeled corrugated cartons. Export packaging includes moisture barriers, shrink wrap, and palletized loading. Each shipment is accompanied by dimensional reports and heat lot traceability.
Industries Using Transformer Spades
- Power Transformer Manufacturers Pole Mounted transformers, Pad mounted Transformers
- Electrical Utilities
- EPC Contractors
- Switchgear OEMs
- Renewable Energy Farms (Wind/Solar)
Turnaround Time Production turnaround is generally 4–6 weeks, depending on complexity and batch size. Urgent schedules can be accommodated on request.
Performance Metrics
- Max Current Rating: Up to 2000 Amps (size-dependent)
- Torque Strength: 35–50 ft-lbs (threaded models)
- Salt Spray Life: >1000 hours (tin plated)
- Thermal Cycle Stability: Passes 100 cycles -40°C to +120°C
Why Choose Us?
- 30+ years of global manufacturing and export experience
- Rapid prototyping and short lead times
- Customization on geometry, threading, hole patterns
- In-house design, die, and machining capabilities
- Flexible MOQ with global logistics support
- Customer-centric communication and engineering services
Typical Questions and Answers
- Do you supply NEMA standard parts? Yes, we manufacture to NEMA spacing standards.
- Can we get custom thread types or lengths? Absolutely, we offer full customization.
- Are torque test reports available? Yes, with each production lot.
- Do you offer silver plating? Yes, for high-current applications.
- Are spades UL or CE approved? Certification support is available on request.
- Do you maintain drawings confidentially? Yes, all files are securely managed.
- Can you ship to job sites directly? Yes, through our logistics partners.
- Are your Bronze materials certified? Yes, with full heat lot traceability.
- What is the maximum conductor size supported? Up to 1000 MCM or per design.
- Do you support barcoding and laser marking? Yes, as per customer requirements.
Customer Testimonial “Their Bronze Transformer Spades met all our NEMA mounting specs and withstood salt fog testing in coastal installations. Fast response and easy coordination made them our go-to partner.” — Lisa Montgomery, Memphis, USA
Glossary of Terms
- NEMA Spacing: Standardized bolt spacing set by National Electrical Manufacturers Association.
- Spade Terminal: A flat terminal with one or more bolt holes.
- Aluminium Bronze: A strong, corrosion-resistant alloy of Copper and Aluminium.
- Threaded Spade: Spade connector with internal or external threads for bolt-on attachment.
Related Search Terms Bronze transformer terminals, high current spade connectors, NEMA spade plates, Aluminium Bronze transformer parts, Silver plated transformer lugs, heavy-duty busbar connectors, transformer bushing adapters
Contact us today for a detailed quote, customized drawings, or product samples. Reach out by email, phone, or WhatsApp for technical support and pricing.
