Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
PV2-56R-XY Panduit Corporation	CONN RING D-SHAPE 2AWG #5/16	1283600
PV14-12R-L Panduit Corporation	CONN RING CIRC 14-16AWG #1/2	150
EV18-56RB-L Panduit Corporation	STRONGHOLD RING TERMINAL, VINYL	4555350
PV18-6RX-CY Panduit Corporation	CONN RING CIRC 18-22AWG #6 CRIMP	161
P8-38R-Q Panduit Corporation	CONN RING CIRC 8AWG #3/8 CRIMP	134
PN12-56HDR-L Panduit Corporation	CONN RING CIRC 12-16AWG #5/16	15511250
S3/0-56R-5 Panduit Corporation	CONN RING FLAT 3/0AWG #5/16	55
PV10-38R-L Panduit Corporation	CONN RING CIRC 10-12AWG #3/8	262150
P8-8RN-T Panduit Corporation	CONN RING CIRC 8AWG #8 CRIMP	18521600
PV14-10R-E Panduit Corporation	CONN RING CIRC 14-16AWG #10	239
EV6-10R-Q Panduit Corporation	STRONGHOLD RING TERMINAL, VINYL	46209600
S4-14R-E Panduit Corporation	CONN RING FLAT 4AWG #1/4 CRIMP	609
PN10-10RN-D Panduit Corporation	RING TERMINAL, NARROW TONGUE, NY	5004500
PN12-10HDR-D Panduit Corporation	CONN RING CIRC 12-16AWG #10	11908500
PV4-38R-T Panduit Corporation	CONN RING FLAT 4AWG #3/8 CRIMP	187
S8-38R-T Panduit Corporation	CONN RING FLAT 8AWG #3/8 CRIMP	585600
PV18-14RX-CY Panduit Corporation	CONN RING CIRC 18-22AWG #1/4	353
S4/0-38R-C Panduit Corporation	CONN RING FLAT 4/0AWG #3/8 CRIMP	13600
PN10-38R-D Panduit Corporation	CONN RING CIRC 10-12AWG #3/8	142500
PV14-10R-M Panduit Corporation	CONN RING CIRC 14-16AWG #10	1333910000

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)