Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
S2-10R-T Panduit Corporation	CONN RING FLAT 1-2AWG #10 CRIMP	199
P6-10RHT6-T Panduit Corporation	CONN RING D-SHAPE 6AWG #10 CRIMP	395
PNF10-56R-2K Panduit Corporation	CONN RING CIRC 10-12AWG #5/16	400014000
PV6-10RX-X Panduit Corporation	CONN RING FLAT 6AWG #10 CRIMP	1290
PV22-10R-CY Panduit Corporation	CONN RING CIRC 22-26AWG #10	1031600
A4/0-12R-C Panduit Corporation	BATTERY CABLE LUG, 4/0 AWG, 1/2"	141200
P6-38RHT6-E Panduit Corporation	CONN RING D-SHAPE 6AWG #3/8	310
P6-12RHT6-E Panduit Corporation	CONN RING D-SHAPE 6AWG #1/2	85
P2-12RHT6-X Panduit Corporation	CONN RING D-SHAPE 2AWG #1/2	0
PV12-14HDRB-2K Panduit Corporation	CONN RING CIRC 12-16AWG #1/4	0
PV14-6R-E Panduit Corporation	CONN RING CIRC 14-16AWG #6 CRIMP	299
S4-10R-T Panduit Corporation	CONN RING FLAT 4AWG #10 CRIMP	80
PV14-4RB-3K Panduit Corporation	CONN RING CIRC 14-16AWG #4 CRIMP	3000
PV18-8R-E Panduit Corporation	CONN RING CIRC 18-22AWG #8 CRIMP	300
PV22-2R-MYY Panduit Corporation	CONN RING CIRC 22-26AWG #2 CRIMP	0
PV18-4RX-CY Panduit Corporation	CONN RING CIRC 18-22AWG #4 CRIMP	140
PV4-10RX-E Panduit Corporation	CONN RING FLAT 4AWG #10 CRIMP	30
PV18-4RX-MY Panduit Corporation	CONN RING CIRC 18-22AWG #4 CRIMP	446
PV12-56HDRB-2K Panduit Corporation	CONN RING CIRC 12-16AWG #5/16	846
PV22-6R-MYY Panduit Corporation	CONN RING CIRC 22-26AWG #6 CRIMP	0

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)