Terminals - Ring Connectors

Part Number	Description / PDF	Quantity
PMN2-5R-3K Panduit Corporation	CONN RING CIRC 14-16AWG M5 CRIMP	0
S3/0-56R-C Panduit Corporation	CONN RING FLAT 3/0AWG #5/16	4100
PMNF2-6R-L Panduit Corporation	CONN RING CIRC 14-16AWG M6 CRIMP	0
PV22-6R-MY Panduit Corporation	CONN RING CIRC 22-26AWG #6 CRIMP	0
PK2-10R-T Panduit Corporation	CONN RING CIRC 2AWG #10 CRIMP	0
PK10-6R-X Panduit Corporation	CONN RING CIRC 10-12AWG #6 CRIMP	0
PN10-610R-L Panduit Corporation	CONN RING MULT STUD 10-12AWG	0
PN22-4R-M Panduit Corporation	CONN RING CIRC 22-26AWG #4 CRIMP	0
PMN6-3R-2K Panduit Corporation	CONN RING CIRC 10-12AWG M3 CRIMP	0
PK14-56R-X Panduit Corporation	CONN RING CIRC 14-18AWG #5/16	0
PK14-38R-X Panduit Corporation	CONN RING CIRC 14-18AWG #3/8	0
PMNF1-4R-C Panduit Corporation	CONN RING CIRC 18-22AWG M4 CRIMP	0
PN22-2R-M Panduit Corporation	CONN RING CIRC 22-26AWG #2 CRIMP	0
PV22-4R-MY Panduit Corporation	CONN RING CIRC 22-26AWG #4 CRIMP	0
PMN6-5R-2K Panduit Corporation	CONN RING CIRC 10-12AWG M5 CRIMP	0
PN22-8R-M Panduit Corporation	CONN RING CIRC 22-26AWG #8 CRIMP	0
P18-6RN-C Panduit Corporation	CONN RING CIRC 18-22AWG #6 CRIMP	0
PK10-38R-L Panduit Corporation	CONN RING CIRC 10-12AWG #3/8	0
S2-56R-T Panduit Corporation	CONN RING FLAT 1-2AWG #5/16	2400
PK14-10R-E Panduit Corporation	CONN RING CIRC 14-18AWG #10	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)