Modular Connectors - Wiring Blocks

Part Number	Description / PDF	Quantity
P110CB5-CY Panduit Corporation	CONN WRG BLOCK 5 PAIR	60
P110CB4-XY Panduit Corporation	CONN WRG BLOCK 4 PAIR	33650
GPB24-X Panduit Corporation	24 PORT PUNCHDOWN BASE, CAT 6	0
P110KB1004Y Panduit Corporation	CONN WRG BLOCK 100PR W/LEGS	9262
P110B100R4BY Panduit Corporation	19 PUNCHDOWN RACK MOUNT PANEL, 4	2
GPKBW72Y Panduit Corporation	72 PAIR STANDARD DENSITY PUNCHDO	4
GPBW432-X Panduit Corporation	432 PAIR PUNCHDOWN BASE WITH LEG	0
GPKT724Y Panduit Corporation	STANDARD DENSITY PUNCHDOWN TOWER	0
GPBW24-X Panduit Corporation	24 PORT PUNCHDOWN BASE WITH LEGS	0
T110WB100 HellermannTyton	CONN WRG BLOCK 100 PAIR	0
N237-001 Tripp Lite	CONN WRG BLOCK SCREW HOLES	1200
T110WBL300 HellermannTyton	CONN WRG BLOCK 300PR W/LEGS	0
T110WBL100 HellermannTyton	CONN WRG BLOCK 100PR W/LEGS	0
T110KIT3005 HellermannTyton	CONN WRG BLOCK 300 PAIR	0
N237-001-SH Tripp Lite	CONN WRG BLOCK SCREW HOLES	25175
GPKBW24Y Panduit Corporation	96 PAIR STANDARD DENSITY PUNCHDO	4
P110B100R4WJY Panduit Corporation	CONN WRG BLOCK 100PR SCREW HOLES	0
T110RM96-4CT HellermannTyton	CONN WRG BLOCK 96 PAIR	0
P110PC2-XY Panduit Corporation	CONN WRG BLOCK 2 PAIR	0
P110KT3005Y Panduit Corporation	CONN WRG BLOCK 300 PAIR	0

Modular Connectors - Wiring Blocks

1. Overview

Modular connectors and wiring blocks are standardized electro-mechanical interfaces used for rapid connection/disconnection of electrical circuits. They serve as critical components in telecommunications, power distribution, and signal control systems. Their interchangeability and scalability make them indispensable in modern infrastructure, enabling efficient maintenance and system expansion.

2. Major Types & Functional Classification

Type	Functional Characteristics	Application Examples
RJ45	8-position, 8-contact (8P8C) modular jack for Ethernet	LAN networks, VoIP phones
USB Type-A/B/C	Differential signaling for data/power transmission	Computers, charging stations
DIN Rail Terminal Blocks	Plug-in design for industrial control circuits	PLC systems, factory automation
Fiber Optic LC/MPO	High-density optical signal transmission	Data centers, 5G base stations
M12	Threaded circular connectors for harsh environments	Industrial sensors, robotics

3. Structure & Components

Typical construction includes:

Contact elements: Phosphor bronze or beryllium copper with gold plating
Insulation housing: High-temperature resistant thermoplastics (e.g., PBT)
Retention mechanism: Latch systems or screw terminals
Shielding: EMI protection via metal shells or conductive coatings

Technical composition integrates mechanical stress relief, polarization keys, and environmental sealing features.

4. Key Technical Specifications

Parameter	Importance
Current Rating (A)	Determines power transmission capacity
Contact Resistance (m )	Impacts signal integrity and power loss
Dielectric Withstanding Voltage (V)	Safety isolation between circuits
Operating Temperature (-40 C to +125 C)	Environmental durability
IP Rating (IP20-IP68)	Protection against dust/water ingress
Mating Cycles (>500)	Product lifecycle prediction

5. Application Fields

Telecommunications: Network switches, DSL modems
Industrial Automation: CNC machines, sensor arrays
Energy Systems: Solar inverters, battery management systems
Consumer Electronics: Smartphones, VR headsets
Transportation: Automotive wiring harnesses, rail signaling
Building Infrastructure: HVAC control systems, security panels

6. Leading Manufacturers & Products

Manufacturer	Representative Product
TE Connectivity	MultiGig RJ45 for 10GBASE-T networks
Phoenix Contact	COMBICON PCB terminal blocks
Molex	PicoBlade 0.8mm wire-to-board connectors
Amphenol	T series circular military-spec connectors
Weidm ller	OMNIMATE signal relay blocks

7. Selection Recommendations

Key considerations:

Match contact configuration to circuit requirements (e.g., 8P8C for PoE)
Evaluate environmental factors (temperature, vibration)
Select appropriate termination method (solder, crimp, insulation displacement)
Verify compliance with industry standards (IEC 60603, UL 1977)
Balance cost vs. longevity in high-cycle applications

Case Study: For industrial IoT deployments, M12 connectors with IP67 rating ensure reliable data acquisition in dusty factory environments.

8. Industry Trends

Current developments include:

Miniaturization: 0.4mm pitch connectors for wearable devices
High-speed capability: 400Gbps optical interfaces
Smart integration: Connectors with built-in current/voltage sensors
Eco-materials: Halogen-free thermoplastics adoption
Hybrid designs: Combined power/data transmission in single modules