Comprehensive Technical Overview of Brass Connector Blocks
We are one of the leading manufacturers and exporters of Brass Connector Blocks, Electrical Terminal Blocks, and Connection Systems from India. We have been supplying high-quality Brass Terminal Blocks, Barrier Terminal Blocks, PCB Terminal Blocks, DIN Rail Terminal Blocks, Electrical Connector Blocks, Custom Connector Blocks, and Special Application Brass Terminal Blocks to the world market for many decades. Our state-of-the-art manufacturing facility specializes in producing premium Brass Connector Block Systems using advanced copper alloy formulation, precision stamping, injection molding, CNC machining, heat treatment processes, electroplating, automated assembly, electrical testing, and comprehensive quality assurance systems. With over three decades of global experience in Brass Connector Block manufacturing, we serve diverse industries including electrical power distribution, industrial automation, control panel manufacturing, railway signaling, renewable energy systems, telecommunications, and building automation. Our expertise encompasses working with various brass alloys including Free Cutting Brass (C36000), High Conductivity Brass (C26000), Naval Brass (C46400), and DZR Brass (CW602N). We manufacture Brass Connector Blocks in current ratings from 10A to 300A, voltage ratings up to 1000V, wire sizes from 0.5mm² to 120mm², maintaining excellent electrical conductivity, superior corrosion resistance, compliance with IEC 60947, UL 1059, CSA C22.2, VDE 0611 standards, and reliable performance in various electrical connection applications.
Types of Brass Connector Blocks
Barrier Type Brass Terminal Blocks
General Purpose Terminal Blocks with screw clamp connections, featuring brass conducting parts and robust barrier design. Available in single and multi-level configurations with current ratings from 15A to 100A. These Universal Terminal Blocks provide reliable connections for control panels, electrical enclosures, power distribution, and industrial applications where secure wire termination is required.
PCB Mount Brass Terminal Blocks
Printed Circuit Board Terminal Blocks with solder or screw termination, featuring brass pins and insulated housings. Current ratings from 10A to 30A with various pin configurations. These Board-Level Connectors are essential for electronic equipment, power supplies, control boards, and PCB applications where space-efficient connections are critical.
DIN Rail Mount Brass Terminal Blocks
Standardized Rail Mounting Blocks with universal DIN rail compatibility, featuring brass conducting elements and modular design. These Rail-Mounted Connectors provide organized wiring for industrial control systems, automation panels, electrical cabinets, and modular installations where systematic wiring management is required.
Feed-Through Brass Terminal Blocks
Straight-Through Connection Blocks with input and output connections, featuring continuous brass conducting path. These Pass-Through Connectors are designed for wire distribution, circuit branching, test points, and applications requiring continuous current paths without interruption.
Fused Brass Terminal Blocks
Integrated Fuse Connection Blocks with fuse holder functionality, featuring brass contacts and fuse protection. These Protected Connectors are crucial for circuit protection, equipment safety, overcurrent protection, and applications requiring integrated fuse protection.
Material Specifications & Properties
Brass Alloy Composition & Electrical Properties
| Alloy Type | Composition | Conductivity (% IACS) | Tensile Strength (MPa) | Rockwell Hardness | Temperature Rating |
|---|---|---|---|---|---|
| Free Cutting Brass C36000 | 61.5% Cu, 35.5% Zn, 3% Pb | 26% | 340-420 | B78-B85 | -40°C to 120°C |
| High Conductivity Brass C26000 | 70% Cu, 30% Zn | 32% | 325-410 | B75-B82 | -40°C to 130°C |
| Naval Brass C46400 | 60% Cu, 39.25% Zn, 0.75% Sn | 28% | 380-480 | B75-B85 | -40°C to 150°C |
| DZR Brass CW602N | 58-60% Cu, 36-38% Zn, 1.6-2.5% Pb | 25% | 400-500 | B80-B90 | -40°C to 120°C |
Insulation Material Properties
| Material Type | UL Rating | CTI | Tracking Resistance | Flammability Rating |
|---|---|---|---|---|
| Polyamide 6.6 | 94V-0 | 600V | CTI 600 | V-0 |
| Polycarbonate | 94V-2 | 250V | CTI 250 | V-2 |
| Thermoplastic | 94V-0 | 400V | CTI 400 | V-0 |
| Ceramic | – | 600V | CTI 600 | Non-Combustible |
Manufacturing Excellence
Advanced Manufacturing Process
Precision Stamping: High-speed progressive die stamping for brass components
Injection Molding: Automated molding for insulated housings
CNC Machining: Precision machining for complex brass parts
Heat Treatment: Stress relief for optimal mechanical properties
Electroplating: Tin, silver, or nickel plating for enhanced performance
Automated Assembly: Robotic assembly for consistent quality
Quality Testing: 100% electrical and mechanical testing
Quality Assurance Protocols
Raw Material Testing: Spectrochemical analysis for alloy verification
Dimensional Control: Optical inspection with statistical process control
Electrical Testing: Contact resistance, dielectric strength, and insulation testing
Mechanical Testing: Torque, pull-out force, and vibration testing
Performance Validation: Thermal cycling, humidity testing, and accelerated aging
Certification Compliance: UL, CSA, VDE, and IEC standard testing
Technical Specifications & Performance Data
Electrical Performance Specifications
| Current Rating | Voltage Rating | Wire Size Range | Contact Resistance | Clamping Force | Screw Torque |
|---|---|---|---|---|---|
| 10A | 300V | 0.5-2.5mm² | <1.0mΩ | 50-80N | 0.4-0.6Nm |
| 20A | 600V | 1.5-4.0mm² | <0.8mΩ | 80-120N | 0.5-0.8Nm |
| 32A | 600V | 2.5-6.0mm² | <0.6mΩ | 120-180N | 0.6-1.0Nm |
| 63A | 1000V | 6.0-16mm² | <0.4mΩ | 180-250N | 1.2-1.8Nm |
| 100A | 1000V | 16-35mm² | <0.3mΩ | 250-350N | 2.0-3.0Nm |
| 150A | 1000V | 35-70mm² | <0.2mΩ | 350-500N | 3.0-4.5Nm |
Temperature Rise & Current Carrying Capacity
| Terminal Size | Rated Current | Temperature Rise | Maximum Current | Test Standard |
|---|---|---|---|---|
| 10A | 10A | 45°C | 15A | IEC 60947-1 |
| 20A | 20A | 50°C | 30A | IEC 60947-1 |
| 32A | 32A | 55°C | 48A | IEC 60947-1 |
| 63A | 63A | 60°C | 95A | IEC 60947-1 |
| 100A | 100A | 65°C | 150A | IEC 60947-1 |
International Standards & Certifications
Global Compliance & Approvals
*IEC 60947-7-1*: Low-voltage switchgear – Terminal blocks
UL 1059: Standard for terminal blocks
CSA C22.2: Canadian electrical equipment standards
VDE 0611: German terminal block standards
RoHS Compliance: Restriction of hazardous substances
REACH Compliance: European chemicals regulation
Testing & Certification Standards
Dielectric Strength: 2500V AC for 1 minute per IEC 60947
Temperature Rise: Current carrying capacity testing
Mechanical Strength: Torque and pull-out force testing
Environmental Testing: Humidity, thermal shock, and corrosion testing
Industry Applications
Industrial Automation
PLC Systems: Input/output connections in programmable controllers
Motor Control Centers: Power and control circuit connections
Sensor Networks: Signal and power connections for sensors
Control Panels: Organized wiring in industrial control systems
Power Distribution
Distribution Boards: Circuit branching and connection points
Switchgear: Control and power circuit connections
Power Supplies: Output connections and distribution
Transformer Connections: Primary and secondary circuit terminations
Building Automation
HVAC Controls: Temperature and control signal connections
Lighting Control: Power and control circuit connections
Security Systems: Alarm and sensor circuit connections
Energy Management: Monitoring and control connections
Installation Guidelines & Maintenance
Professional Installation Procedure
-
Wire Preparation: Strip insulation to recommended length
-
Terminal Selection: Choose appropriate block for current and wire size
-
Connection Preparation: Loosen screw and insert wire fully
-
Torque Application: Use calibrated screwdriver with specified torque
-
Tug Test: Verify wire security with gentle pulling
-
Final Inspection: Check for proper seating and insulation
Maintenance Best Practices
Regular Inspection: Visual check for corrosion, damage, or overheating
Torque Verification: Periodic torque check for critical connections
Contact Cleaning: Clean contacts if oxidation is observed
Thermal Monitoring: Infrared inspection for hot spots
Replacement Schedule: 20+ year service life with proper installation
Frequently Asked Questions
Q1: What are the advantages of brass terminal blocks over other materials?
Brass terminal blocks offer excellent electrical conductivity, superior corrosion resistance, good mechanical strength, reliable clamping force maintenance, and cost-effectiveness compared to other materials like steel or aluminum.
Q2: Can your terminal blocks be used in outdoor applications?
Yes, we offer brass terminal blocks with UV-resistant housings and weatherproof designs suitable for outdoor applications. Our marine-grade brass blocks with DZR brass provide enhanced corrosion resistance for harsh environments.
Q3: What is the maximum operating temperature for your terminal blocks?
Our standard brass terminal blocks are rated for continuous operation from -40°C to 120°C. Special high-temperature versions are available for applications up to 150°C with appropriate insulation materials.
Q4: Do you provide custom marking and labeling on terminal blocks?
Yes, we offer custom marking, color coding, and numbering on terminal blocks to meet specific project requirements. Laser marking and custom labeling are available for identification and traceability.
Q5: What is the expected service life of your brass terminal blocks?
Our brass terminal blocks have a service life expectancy of 20+ years in standard applications and 15+ years in harsh environments when properly installed and maintained, with proven reliability in industrial applications.
Q6: What testing do you perform on finished terminal blocks?
We perform 100% electrical testing, dimensional verification, mechanical strength testing, and sample environmental testing. Additionally, we conduct certification testing to UL, CSA, VDE, and IEC standards for quality assurance.
Contact Us Today – Request Quote for Brass Connector Blocks
Ready to discuss your Brass Connector Block requirements for electrical control systems, industrial automation, power distribution, or custom connection solutions?
Request a Quote: Send your specifications including current rating, voltage rating, wire size, mounting type, quantity, and application details to sales@jambrass.com for a detailed quotation within 24 hours.
Technical Support: Email your application requirements or technical drawings for connector block selection guidance, material recommendation, and certification assistance.
Call Us: +91-22-43449300 / +91-22-43449323 (Monday-Friday, 9:00 AM – 6:00 PM IST)
Office Address: 1406, 14th Floor, Dalamal Tower, Nariman Point, Mumbai – 400021, Maharashtra, INDIA
Factory Address: Plot 10B, GIDC Industrial Estate, Shanker Tekari, Udyognagar, Jamnagar, Gujarat, India – 361004
Contact Person: Mr. Mehul Vora
Email: sales@jambrass.com
