Overview
The Burndy AYP4 compression pin adapter is an aluminum-based termination connector designed for secure, long-lasting connections in electrical distribution equipment. Type AYP adapters are engineered to reliably terminate both aluminum and copper conductors in mechanical connectors found in circuit breakers, switchgear, and panel board applications. Each unit features electro-tin plating to resist corrosion and is factory pre-filled with PENETROX oxide-inhibiting compound for superior conductivity and air-tight sealing.
Key Features
- All-aluminum electro-tin plated construction — eliminates bi-metallic corrosion between dissimilar metals.
- Factory pre-filled with PENETROX compound — oxide-inhibiting formula with conductive particles that penetrates aluminum oxide, ensuring air-tight connections and reducing field preparation time.
- UL 486A and CSA certified — listed to 600 V with proper tool and die combination; suitable for applications up to 35 kV.
- Shortest connector length design — compact profile simplifies installation in equipment with limited working space.
- EPDM rubber cover included — rated for 600 VAC, eliminates need for additional taping and improves safety.
- Color-coded die index — clearly marked with catalog number and wire size for quick identification and reduced installation errors.
Technical Specifications
- Conductor Size: 4 AWG (aluminum or copper)
- Pin Diameter: 0.23 inches
- Pin Length: 0.68 inches
- Barrel Length: 1 inch
- Overall Length: 1.85 inches
- Material: Aluminum, electro-tin plated
- Voltage Rating: 600–35,000 VAC
- Die Code: 296 Element A
- Type Designation: Type AYP
- Wire Strip Length: 1-1/16 inch
- Temperature Rating: 194 °F (90 °C)
- Color Code: Tan
- Certifications: UL 486A, CSA 600 V
- Packaging: Box of 25 connectors with integrated EPDM covers
Typical Applications
- Mechanical connectors in molded case circuit breakers
- Panel board and switchgear equipment
- Meter sockets and service entrance installations
- High-voltage utility and industrial electrical systems (up to 35 kV)
- Aluminum-to-copper conductor terminations where corrosion resistance is critical
Compatibility & Replacements
Compatible With
- 4 AWG aluminum and copper conductors
- Mechanical pin-type connectors in electrical equipment
- Molded case circuit breaker terminal lugs
- Panel board connector systems
- Meter socket assemblies
- Die set code 296 Element A compression tools
Replaces / Drop-In Replacement For
- Earlier aluminum compression adapters without factory-filled PENETROX compound
- Verify compatibility with your equipment specifications and die set before ordering.
Works With
- Compression tools equipped with die set 296 Element A
- PENETROX compound (pre-filled; no additional application required)
- EPDM rubber covers (supplied with each connector)
- UL 486A–compliant termination practices
