Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
PV2-38R-TY Panduit Corporation	CONN RING D-SHAPE 2AWG #3/8	200
P10-14R-E Panduit Corporation	CONN RING CIRC 10-14AWG #1/4	45
PV22-10R-MYY Panduit Corporation	CONN RING CIRC 22-26AWG #10	0
PV12-6HDR-L Panduit Corporation	CONN RING CIRC 12-16AWG #6 CRIMP	5
S3/0-14R-C Panduit Corporation	CONN RING FLAT 3/0AWG #1/4 CRIMP	0
PV6-12RX-T Panduit Corporation	CONN RING FLAT 6AWG #1/2 CRIMP	400
P4-56RHT6-E Panduit Corporation	CONN RING D-SHAPE 4AWG #5/16	0
P8-38RHT6-Q Panduit Corporation	CONN RING D-SHAPE 8AWG #3/8	100
S250-76R-5 Panduit Corporation	CONN RING FLAT 250MCM #7/16	0
PV4-12RX-E Panduit Corporation	CONN RING FLAT 4AWG #1/2 CRIMP	0
P4-10RHT6-E Panduit Corporation	CONN RING D-SHAPE 4AWG #10 CRIMP	0
PV2-56RX-XY Panduit Corporation	CONN RING D-SHAPE 2AWG #5/16	201290
P8-8RHT6-Q Panduit Corporation	CONN RING D-SHAPE 8AWG #8 CRIMP	100
P14-10R-E Panduit Corporation	CONN RING CIRC 14-18AWG #10	0
PV14-8RX-M Panduit Corporation	CONN RING CIRC 14-16AWG #8 CRIMP	2575
PM1-5R-C Panduit Corporation	CONN RING CIRC 18-22AWG M5 CRIMP	9
PV22-8R-MYY Panduit Corporation	CONN RING CIRC 22-26AWG #8 CRIMP	4000
PM1-5R-X Panduit Corporation	CONN RING CIRC 18-22AWG M5 CRIMP	0
PV8-12R-TY Panduit Corporation	CONN RING CIRC 8AWG #1/2 CRIMP	600
PNF10-38R-2K Panduit Corporation	CONN RING CIRC 10-12AWG #3/8	2000

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)