Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
PN12-14HDR-D Panduit Corporation	CONN RING CIRC 12-16AWG #1/4	2063500
P4-14R-E Panduit Corporation	CONN RING CIRC 4AWG #1/4 CRIMP	2552640
PNF18-10R-3K Panduit Corporation	CONN RING CIRC 18-22AWG #10	3989
PV14-38R-L Panduit Corporation	CONN RING CIRC 14-16AWG #3/8	140150
PV14-14RX-M Panduit Corporation	CONN RING CIRC 14-16AWG #1/4	16205000
P12-56HDR-L Panduit Corporation	CONN RING CIRC 12-16AWG #5/16	129
PK6-38R-T Panduit Corporation	CONN RING CIRC 6AWG #3/8 CRIMP	0
P18-56R-C Panduit Corporation	CONN RING CIRC 18-22AWG #5/16	8961600
PN18-10R-3K Panduit Corporation	CONN RING CIRC 18-22AWG #10	3088
PV2-38RX-XY Panduit Corporation	CONN RING D-SHAPE 2AWG #3/8	10
PN10-56RX-L Panduit Corporation	CONN RING CIRC 10-12AWG #5/16	6922100
PV14-6RX-C Panduit Corporation	CONN RING CIRC 14-16AWG #6 CRIMP	4825900
S1/0-12R-C Panduit Corporation	CONN RING FLAT 1/0AWG #1/2 CRIMP	78700
PV12-8HDR-D Panduit Corporation	CONN RING CIRC 12-16AWG #8 CRIMP	20
PNF14-8R-C Panduit Corporation	CONN RING CIRC 14-16AWG #8 CRIMP	17133500
PV6-8R-E Panduit Corporation	CONN RING FLAT 6AWG #8 CRIMP	0
A2-38R-C Panduit Corporation	BATTERY CABLE LUG, 2 AWG, 3/8" S	36282900
PV14-56RX-L Panduit Corporation	CONN RING CIRC 14-16AWG #5/16	3006050
EV14-38RB-Q Panduit Corporation	STRONGHOLD RING TERMINAL, VINYL	338616600
PN10-8R-L Panduit Corporation	CONN RING CIRC 10-12AWG #8 CRIMP	3396550

Terminals - Ring Connectors

1. Overview

Ring connectors are cylindrical metallic terminals with a closed loop at one end, designed to establish secure electrical connections between wires and screw-type terminals. They prevent wire fraying and ensure stable contact in high-vibration environments. Critical for power transmission and signal integrity in industrial and automotive systems.

2. Main Types & Functional Classification

Type	Functional Features	Application Examples
Open Barrel Ring	Split design for easy wire insertion	Battery terminals, control panels
Closed Barrel Ring	360 compression for maximum conductivity	High-vibration machinery
Insulated Ring	Polymer coating for short-circuit prevention	Automotive electronics

3. Structure & Composition

Typical construction includes:

Copper alloy body (C11000/C14500) with tin/nickel plating
Insulation sleeve (PVC/nylon, 105 C rating)
Barrel section with 2-3 crimping zones for wire retention
Loop diameter tolerance 0.1mm for screw compatibility

4. Key Technical Specifications

Parameter	Typical Range	Importance
Ampacity	10-150A	Current carrying capacity
Contact Resistance	0.5-5m	Power loss prevention
Dielectric Strength	1kV-5kV	Insulation reliability
Vibration Resistance	15G @ 10Hz-2kHz	Automotive compliance

5. Application Fields

Primary industries:

Automotive (battery cables, alternator connections)
Industrial automation (PLC terminals, motor drives)
Renewable energy (solar charge controllers)
Aerospace (avionics grounding systems)

6. Leading Manufacturers & Products

Manufacturer	Product Series	Key Features
TE Connectivity	DT Ring Terminals	Corrosion-resistant alloy, 125A rating
Phoenix Contact	RTME Series	Push-in wire connection, 600V compliance
Sumitomo Electric	HR4H-S-DC5V	Automotive-grade tin-plated copper

7. Selection Guidelines

Key considerations:

Current/voltage requirements
Wire gauge compatibility (AWG 22-4/0)
Environmental factors (temperature, humidity, vibration)
UL/CSA certification for safety compliance
Color-coded insulation for circuit identification

8. Industry Trends

Emerging developments include:

Miniaturization for EV battery management systems
Graphene-enhanced plating for corrosion resistance
Smart connectors with integrated current sensing
Lead-free manufacturing processes (RoHS compliance)