Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
PV18-56RX-LY Panduit Corporation	CONN RING CIRC 18-22AWG #5/16	100
PM6-3R-X Panduit Corporation	CONN RING CIRC 10-12AWG M3 CRIMP	0
PV10-6R-E Panduit Corporation	CONN RING CIRC 10-12AWG #6 CRIMP	0
PM2-5R-C Panduit Corporation	CONN RING CIRC 14-16AWG #5 CRIMP	23714900
PV14-14R-E Panduit Corporation	CONN RING CIRC 14-16AWG #1/4	100
S4/0-76R-C Panduit Corporation	CONN RING FLAT 4/0AWG #7/16	84
S3/0-76R-5 Panduit Corporation	CONN RING FLAT 3/0AWG #7/16	0
PV6-12R-T Panduit Corporation	CONN RING FLAT 6AWG #1/2 CRIMP	400
S3/0-12R-C Panduit Corporation	CONN RING FLAT 3/0AWG #1/2 CRIMP	91
PV22-2R-MY Panduit Corporation	CONN RING CIRC 22-26AWG #2 CRIMP	325
P4-12RHT6-E Panduit Corporation	CONN RING D-SHAPE 4AWG #1/2	57
PV12-38HDRB-2K Panduit Corporation	CONN RING CIRC 12-16AWG #3/8	0
PV2-12R-TY Panduit Corporation	CONN RING D-SHAPE 2AWG #1/2	400
PV14-8R-E Panduit Corporation	CONN RING CIRC 14-16AWG #8 CRIMP	153
PV12-56HDR-D Panduit Corporation	CONN RING CIRC 12-16AWG #5/16	820
PV22-4R-MYY Panduit Corporation	CONN RING CIRC 22-26AWG #4 CRIMP	0
S4/0-56R-C Panduit Corporation	CONN RING FLAT 4/0AWG #5/16	2553000
P14-14R-E Panduit Corporation	CONN RING CIRC 14-18AWG #1/4	200
PV10-38R-E Panduit Corporation	CONN RING CIRC 10-12AWG #3/8	120
PV10-56R-E Panduit Corporation	CONN RING CIRC 10-12AWG #5/16	40

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)