Allen-Bradley 1756-TBS6H ControlLogix 36-Pin Spring Terminal Block

Allen-Bradley 1756-TBS6H ControlLogix Spring Terminal Block

The Allen-Bradley 1756-TBS6H is a high-performance 36-pin spring terminal block engineered for ControlLogix I/O systems, delivering tool-free wire termination with superior vibration resistance in demanding industrial environments.

Technical Specifications

• Model: 1756-TBS6H
• Series: ControlLogix 1756
• Terminal Type: Spring clamp connection
• Pin Configuration: 36-pin removable terminal block
• Wire Gauge: 14-26 AWG (0.25-1.5 mm²)
• Voltage Rating: 30V DC maximum
• Current Rating: 2A per terminal
• Operating Temperature: 0°C to 60°C (32°F to 140°F)
• Mounting: DIN rail compatible
• Compliance: UL, CE, RoHS certified

Key Features & Benefits

Tool-Free Installation: Spring-loaded terminals eliminate the need for screwdrivers, reducing installation time by up to 40% while ensuring consistent connection quality across all terminals.

Vibration-Resistant Design: Spring clamp technology maintains secure electrical contact even in high-vibration applications such as packaging machinery, automotive assembly lines, and material handling systems.

Hot-Swappable Capability: Removable terminal block design allows field wiring to remain in place during module replacement, minimizing downtime during maintenance operations.

Application Solutions

Process Control: Ideal for connecting analog sensors, transmitters, and actuators in chemical processing, water treatment, and pharmaceutical manufacturing where reliable signal integrity is critical.

Machine Automation: Perfect for discrete I/O wiring in packaging equipment, CNC machines, and robotic cells requiring frequent reconfiguration or troubleshooting access.

Building Management: Supports HVAC control, lighting systems, and access control integration within ControlLogix-based building automation architectures.

Compatible ControlLogix Modules

This terminal block is designed for use with 36-pin ControlLogix I/O modules including analog input/output modules, specialty modules, and communication interfaces. Verify module compatibility before ordering.

Installation Guidelines

1. Verify module power is OFF before connecting terminal block
2. Strip wire insulation 7-8mm (0.28-0.31 inches)
3. Press release button and insert wire fully into terminal opening
4. Release button to engage spring clamp mechanism
5. Verify secure connection with gentle pull test
6. Label all wiring per facility standards before energizing

Frequently Asked Questions

Q: Can I use stranded wire with this terminal block?
A: Yes, the 1756-TBS6H accepts both solid and stranded wire from 14-26 AWG. For stranded wire, use ferrules for optimal connection reliability.

Q: What is the maximum wire length recommended?
A: For analog signals, limit wire runs to 100 meters (328 feet) using shielded twisted-pair cable. Digital signals can extend up to 300 meters with appropriate cable selection.

Q: Is this terminal block compatible with older 1756 modules?
A: The 1756-TBS6H is compatible with all 36-pin ControlLogix I/O modules across firmware revisions. Always verify pin-out documentation for your specific module.

Q: How do I remove a wire from the spring terminal?
A: Press the orange release button above the terminal while gently pulling the wire. Do not force removal without pressing the release mechanism.

Warranty & Support

This product includes a 12-month manufacturer warranty covering defects in materials and workmanship. Technical support and replacement parts are available through authorized distributors and the manufacturer's global support network.

For system integration assistance, consult with certified ControlLogix system integrators or contact our technical team for application-specific guidance.

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