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Industrial Technical Report – 1756-TBSH ControlLogix Spring Clamp Removable Terminal Block
Product Overview
The 1756-TBSH is a removable spring clamp terminal block designed for ControlLogix I/O systems. It provides a secure and efficient interface between field wiring and industrial I/O modules, ensuring reliable electrical connections in demanding automation environments.
This terminal block uses spring clamp technology to simplify wire installation while maintaining strong vibration-resistant electrical contact. It is widely used in industrial control cabinets where high-density wiring, maintenance efficiency, and long-term operational reliability are required.
The removable structure allows maintenance personnel to disconnect field-side wiring from the module quickly, reducing downtime during troubleshooting, upgrades, or module replacement.
Brand Information
The product belongs to a globally recognized industrial automation ecosystem specializing in programmable logic controllers, distributed I/O architectures, industrial networking systems, and process automation technologies.
It is commonly used in:
- Industrial automation systems
- Manufacturing production lines
- Process control applications
- Infrastructure automation systems
- Energy and utility projects
Key characteristics include:
- Spring clamp terminal technology
- Modular removable wiring structure
- High-density wiring support
- Fast installation capability
- Industrial-grade durability
Product Series
ControlLogix Wiring & Terminal Accessories Series
The 1756-TBSH belongs to the ControlLogix removable terminal block family developed for modular PLC-based automation systems.
Key system features include:
- Spring clamp wiring connection
- Removable terminal block architecture
- Compact high-density terminal arrangement
- Fast wiring and maintenance capability
- Industrial vibration-resistant connection structure
Compatible module categories include:
- Digital input modules
- Digital output modules
- Analog input modules
- Analog output modules
- Specialty communication modules
The terminal block is engineered for industrial control panel installations requiring reliable field wiring organization.
Technical Parameters
Detailed Specification Table
| Parameter | Specification |
|---|---|
| Model | 1756-TBSH |
| Product Type | Spring Clamp Removable Terminal Block |
| Series | ControlLogix Wiring Accessories |
| Terminal Type | Spring clamp connection |
| Terminal Positions | 36 positions |
| Wiring Method | Spring clamp insertion |
| Compatible Wire Size | 0.33–2.1 mm² |
| Compatible AWG | 14–22 AWG |
| Mounting Method | Direct module attachment |
| Connection Orientation | Front-access terminal design |
| Retention Method | Locking latch mechanism |
| Conductor Compatibility | Copper industrial wire |
| Housing Material | Industrial thermoplastic |
| Insulation Rating | Industrial-grade insulation |
| Wiring Density | High-density terminal layout |
| Replaceable Under Maintenance | Yes |
| Installation Method | Tool-assisted spring clamp |
| Vibration Resistance | High mechanical stability |
| Electrical Contact Reliability | Industrial-grade |
| Operating Temperature | 0°C to 60°C |
| Storage Temperature | -40°C to 85°C |
| Humidity Range | 5%–95% non-condensing |
| Shock Resistance | Industrial rated |
| Flame Rating | UL94-V0 |
| EMC Compatibility | Industrial environment compliant |
| Dimensions | 13.6 × 11.0 × 5.0 cm |
| Weight kg（ ） | ~0.18 kg |
Product Description
The 1756-TBSH is designed to provide fast, organized, and reliable field wiring connectivity for ControlLogix systems. The spring clamp mechanism simplifies installation by allowing wires to be inserted quickly while maintaining stable electrical contact even in vibration-heavy industrial environments.
Its removable design improves maintenance efficiency because field wiring does not need to be disconnected during module replacement. This significantly reduces downtime and minimizes wiring errors during service operations.
The compact structure supports high-density industrial cabinet installations while ensuring proper cable organization and safe signal transmission.
Product Applications
Industrial Automation Systems
Used in:
- PLC control cabinets
- Conveyor automation systems
- Machine control systems
- Packaging production lines
Manufacturing Industry
Applied in:
- Automotive production equipment
- Robotics control systems
- CNC machine installations
- Assembly line automation
Process Industries
Used in:
- Chemical processing systems
- Pharmaceutical production facilities
- Food and beverage automation
- Water treatment plants
Energy & Utility Systems
Used in:
- Power generation facilities
- Renewable energy systems
- Utility monitoring systems
- Electrical distribution equipment
Infrastructure Automation
Used in:
- Transportation systems
- Building automation
- Industrial facility monitoring
- Public utility management systems
Product Advantages
1. Fast Wiring Installation
Spring clamp terminals reduce wiring time significantly.
2. Strong Vibration Resistance
Maintains stable electrical contact in harsh environments.
3. Simplified Maintenance
Supports rapid module replacement without rewiring.
4. Compact High-Density Design
Optimizes control cabinet space utilization.
5. Reliable Electrical Connection
Provides long-term signal stability and secure contact.
6. Industrial Durability
Designed for continuous industrial operation.
Recommended Models (Same Series or Related)
ControlLogix Wiring Accessories & Related Modules
| Model | Type | Function | Key Feature | Dimensions | Weight kg（ ） |
|---|---|---|---|---|---|
| 1756-TBSH | Spring Clamp Terminal Block | Field wiring interface | Removable spring clamp design | 13.6×11.0×5.0 cm | 0.18 kg |
| 1756-TBS6H | Spring Clamp Terminal Block | High-density wiring | Compact terminal structure | 13.5×11.0×5.0 cm | 0.17 kg |
| 1756-TBCH | Terminal Block Housing | Cage clamp wiring | Fast removable connection | 13.8×11.2×5.2 cm | 0.18 kg |
| 1756-TBNH | Terminal Block Housing | Screw terminal wiring | Strong wire retention | 13.8×11.2×5.2 cm | 0.19 kg |
| 1756-IF16 | Analog Input Module | Analog acquisition | 16-channel AI module | 14.8×14.2×3.8 cm | 0.32 kg |
| 1756-OB16E | Digital Output Module | Output control | 16-point electronic output | 14×13.5×3.5 cm | 0.26 kg |
Recommended Popular Models (Same Platform Ecosystem)
Widely Used ControlLogix Modules
| Model | Function | Network | Role | Dimensions | Weight kg（ ） |
|---|---|---|---|---|---|
| 1756-L85E | PLC Controller | EtherNet/IP | Main processor unit | 15×14×13 cm | 0.65 kg |
| 1756-EN2TR | Ethernet Module | EtherNet/IP | Industrial communication | 13×14×12 cm | 0.48 kg |
| 5069-L320ER | Advanced PLC | EtherNet/IP | High-performance automation | 13×10×9 cm | 0.54 kg |
| 1734-AENTR | I/O Adapter | EtherNet/IP | Remote I/O gateway | 7×7×7 cm | 0.20 kg |
| 1769-L36ERM | Compact PLC | Ethernet | Mid-range controller | 15×11×10 cm | 0.75 kg |
Installation Notes
Correct installation ensures reliable operation and long-term electrical stability.
Key requirements:
- Use compatible industrial wire sizes
- Ensure proper spring clamp insertion depth
- Avoid excessive cable tension
- Confirm latch locking after installation
- Organize field wiring for easier maintenance access
Maintenance Characteristics
- Minimal maintenance requirement
- Fast removable structure
- Reliable long-term electrical contact
- High mechanical durability
- Simplified troubleshooting and servicing
Final Summary
The 1756-TBSH is a removable spring clamp terminal block designed for ControlLogix systems, providing efficient and reliable field wiring connections for industrial automation applications.
Its main strengths include fast installation capability, vibration-resistant electrical contact, simplified maintenance procedures, and compact high-density wiring support, making it highly suitable for modern industrial control cabinets requiring dependable and maintenance-friendly wiring infrastructure.