Terminal Blocks - Interface Modules

Image Part Number Description / PDF Quantity Rfq
8155630000

8155630000

Weidmuller

INTERFACE MOD DSUB FMALE 37POS

2

1480780000

1480780000

Weidmuller

RS ELCOF 56/56RM S

0

0224861001

0224861001

Weidmuller

RS F26 LP 2N 5/26 INTERFACE

0

9800510000

9800510000

Weidmuller

INTERFACE MOD HDR ELCO 38POS

0

944025

944025

Weidmuller

INTERFACE MOD HDR 34POS 16-26AWG

0

8216480000

8216480000

Weidmuller

INTERFACE MOD D-SUB FEMALE 9POS

0

7940021585

7940021585

Weidmuller

TBY-C3-RI32-AKB ADV151 24VDC

0

8537370000

8537370000

Weidmuller

INTERFACE MOD DSUB MALE 25POS

0

8155600000

8155600000

Weidmuller

INTERFACE MODULE HDR 20POS

0

8537390000

8537390000

Weidmuller

INTERFACE MOD DSUB MALE 15POS

0

1371470000

1371470000

Weidmuller

TBY-C3-AI0-2KS-S

0

8224191001

8224191001

Weidmuller

RS F40 16 RS OUT ERW 24VDC

0

8537200000

8537200000

Weidmuller

INTERFACE MOD HDR 14POS 16-26AWG

0

7940033063

7940033063

Weidmuller

TBY-C3-RI32 ADV 151/161 24VDC

0

8012930000

8012930000

Weidmuller

INTERFACE MOD HDR 34POS 16-26AWG

1

7940033062

7940033062

Weidmuller

TBY-C3-RO32 AKB ADV 551/561

0

8258980000

8258980000

Weidmuller

INTERFACE MODULE HDR 14POS

0

8012850000

8012850000

Weidmuller

INTERFACE MOD HDR 10POS 16-26AWG

0

8019940000

8019940000

Weidmuller

INTERFACE MOD DSUB MALE 15POS

0

0224261001

0224261001

Weidmuller

RS F20 LP 2N 5/20 INTERFACE

0

Terminal Blocks - Interface Modules

1. Overview

Terminal Blocks and Interface Modules are essential components in electrical and electronic systems, providing secure connections between wires and devices. Terminal Blocks are modular housing units that protect and organize electrical connections, while Interface Modules act as intermediaries between different system components, converting signals or power. These components are critical in industrial automation, energy distribution, and control systems, ensuring reliability, scalability, and maintenance efficiency.

2. Major Types and Functional Classification

TypeFunctional CharacteristicsApplication Examples
Screw Terminal BlocksUse screws for wire clamping; high current capacityIndustrial control panels, HVAC systems
Spring Clamp Terminal BlocksTool-free wire insertion; vibration-resistantAutomotive electronics, robotics
PCB Terminal BlocksDirect PCB mounting; compact designConsumer electronics, instrumentation
DIN Rail Interface ModulesStandardized rail mounting; modular expansionFactory automation, process control
Signal Conversion ModulesConvert analog/digital signals; galvanic isolationPLC systems, IoT devices

3. Structure and Components

Typical terminal blocks consist of: - Conductive Elements: Brass/copper alloys with gold/silver plating for low resistance - Insulation Housing: Thermoplastic (PA66, PBT) with UL94 V-0 flammability rating - Clamping Mechanism: Screw/spring systems with mechanical stops - Marking Systems: Laser-etched labels for wire identification Interface modules add integrated circuits, optical isolators, or signal conditioning components.

4. Key Technical Specifications

ParameterTypical RangeImportance
Voltage Rating50-1000V AC/DCDetermines insulation requirements
Current Capacity1-250ADictates conductor size selection
Temperature Range-40 C to +120 CEnvironmental durability indicator
Contact Resistance<10m Impacts power efficiency
IP RatingIP20-IP68Defines protection against dust/water

5. Application Fields

  • Industrial Automation: PLC cabinets, motor control centers
  • Energy Systems: Solar inverters, wind turbine junction boxes
  • Transportation: Rail vehicle control systems, EV charging stations
  • Building Technology: Smart HVAC systems, lighting controls
  • Process Industry: Petrochemical plant instrumentation

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
Phoenix ContactPT 10-2,5/2-H-SCSpring clamp, 24A/400V, push-in wiring
TE ConnectivityMiniQ88High-density PCB terminals, 8.8mm pitch
Weidm llerOMNIMATE PCB Terminal BlocksMulti-level stacking, automated test systems
WAGO753-613 Interface RelayPlug-in module, 10A switching capacity

7. Selection Recommendations

Key considerations: - Environmental factors (temperature, vibration, chemical exposure) - Electrical parameters (voltage/current harmonics) - Installation constraints (space limitations, DIN rail compatibility) - Maintenance requirements (tool-free vs. screw-based solutions) - Future expandability (modular vs. fixed designs)

8. Industry Trends

Emerging trends include: - Miniaturization for space-constrained applications - Integrated diagnostics (IoT-enabled terminals) - Increased use of surface-mount technology (SMT) - Development of eco-friendly materials (halogen-free polymers) - Standardization of modular interface systems (e.g., IEC 61557-12) - Enhanced cybersecurity features in industrial communication modules

Application Case: In a smart factory automation system, Phoenix Contact's modular terminal blocks with built-in signal conditioning reduced wiring time by 40% while enabling real-time monitoring through integrated IoT interfaces.

RFQ BOM Call Skype Email
Top