Overview
The Burndy AYPO compression pin adapter is a Type AYPO offset-design connector engineered for secure termination of aluminum and copper conductors rated 250–350 kcmil. These adapters are ideal for use in molded case circuit breakers, panel board equipment, meter sockets, and other electrical distribution applications requiring robust, corrosion-resistant connections. The all-aluminum electro-tin plated construction eliminates bi-metallic corrosion while providing shortest-possible connector length for equipment with limited working space.
Key Features
- All-aluminum electro-tin plated design resists corrosion and eliminates bi-metallic corrosion
- Offset plug design maximizes use of limited space without conductor or equipment interference
- Factory pre-filled with PENETROX oxide inhibiting compound for air-tight, permanent connections
- Solid plug with equivalent cross-sectional area as copper wire, allows use of larger aluminum conductors
- Simple cable preparation and permanent, inspectable termination
- UL 486A and CSA certified to 600 V; suitable for applications up to 35 kV
Technical Specifications
- Conductor Sizes: 250 kcmil, 300 kcmil, 350 kcmil
- Material: Aluminum, electro-tin plated
- Rated Voltage: 600 V (UL/CSA); up to 35 kV with proper application
- Applicable Die Code: 299 (standard compression die)
- Color Code: Brown
- AYPO250 Pin Dimensions: 0.47″ diameter × 1.22″ length
- AYPO300 Pin Dimensions: 0.53″ diameter × 1.34″ length
- AYPO350 Pin Dimensions: 0.57″ diameter × 1.34″ length
- Certifications: UL 486A, CSA certified
- Joint Compound: PENETROX pre-filled
Typical Applications
AYPO compression pin adapters are widely used in:
- Molded case circuit breaker (MCCB) connections
- Panel board main lugs and feeder terminations
- Meter socket conductor terminations
- Switchgear and control equipment with aluminum/copper mixing requirements
- Industrial distribution systems requiring offset connector geometry
Compatibility & Replacements
Compatible With
- Aluminum and copper conductors rated 250–350 kcmil
- Standard compression tools with U31ART dies (AYPO250/AYPO300) and U34ART dies (AYPO350)
- Hyplug® compression pin adapter system
- UL 486A listed electrical distribution equipment
Replaces / Drop-In Replacement For
Verify compatibility with your electrical equipment manufacturer’s specifications before ordering. Offset design AYPO adapters are direct upgrades to non-offset AYP models of equivalent kcmil rating.
Works With
- Burndy compression dies: U31ART (AYPO250/AYPO300) and U34ART (AYPO350)
- Standard hydraulic and hand-operated compression tools compatible with Burndy die codes 299 and 300
- Any electrical distribution system requiring aluminum/copper conductor termination per UL/CSA standards
