Sierra Power Cord Adapter (MPN: AC12500)

Connect 30 Amp Dockside Power to 50 Amp Boatside Inlet

The Sierra Power Cord Adapter is designed to facilitate the connection between a 30 Amp dockside power outlet and a 50 Amp boatside inlet. This pigtail adapter features a 30 Amp/125 Volt male plug (NEMA L5-30P) and a 50 Amp/250 Volt female connector (NEMA SS2-50R), allowing for versatile power configurations on marine vessels. Constructed with a durable PVC cord jacket and molded nylon plugs, this adapter ensures reliable performance in marine environments.

With nickel-plated brass contacts, the Sierra adapter provides excellent conductivity and corrosion resistance, enhancing the longevity of the connection. The twist-locking design of both ends ensures a secure fit, preventing accidental disconnections during use. This adapter is suitable for various marine applications, making it an essential accessory for boat owners who require flexible power solutions.

The 10 gauge wire and three conductors support high power demands, ensuring that your electrical systems operate efficiently. The bright yellow color of the cord enhances visibility, reducing the risk of tripping hazards on the dock. Overall, the Sierra Power Cord Adapter is a practical solution for connecting different power configurations safely and effectively.

Features

• Use To Connect 30 Amp Male Dockside Connector To 50 Amp Boatside Female Inlet
• Industry Standard NMEA Connections
• Nickel Plated Brass Contacts
• Easy To Use

Specifications

• Manufacturer: Sierra Marine
• Manufacturer Part Number: AC12500
• Type: Adapter Cord
• NEMA Standard 1: L5-30P
• NEMA Standard 2: SS2-50R
• End Type 1: Twist Locking
• End Type 2: Twist Locking
• End Rating 1: 30 Amp
• End Rating 2: 50 Amp
• Color: Yellow
• Material: PVC
• With Locking Ring: Yes
• With Plug Head Handle: No
• Marine: Yes

Technical Documents

• Sierra30A50ACordset_INM_4445103977_A4_AMER3_2025-06-27.pdf