Cole Hersee 12V 85A Continuous Duty Solenoid - Normally Open (24059BX)

The Cole Hersee 24059BX Continuous Duty Solenoid is a dependable 12V, 85-amp normally open relay designed for heavy-duty electrical systems in automotive, marine, industrial and auxiliary power applications. Built to handle long periods of operation without overheating, this solenoid delivers consistent performance for systems requiring reliable switching under sustained load.

Featuring a normally open, single-circuit configuration with copper stud terminals, insulated coil terminals and a robust plated steel housing, it’s engineered for long service life and strong electrical conductivity. The insulated return design ensures safer, more stable wiring layouts, especially in dual-battery, auxiliary charging and continuous-run applications.

Trusted worldwide for durability and reliability, Cole Hersee components are built to withstand demanding conditions and are ideal for installers, repairers and 4WD, caravan and marine electrical setups. This solenoid includes nuts and washers and is backed by a one-year warranty.

Key Features

• Heavy-duty 12V continuous duty solenoid rated at 85A.
• Normally open single-circuit design suitable for on/off power control.
• Copper stud terminals (5/16-24) for high conductivity and strong load capability.
• Insulated coil terminals (10-32) for secure, protected electrical connections.
• Plated steel housing with included nuts and washers for easy installation.
• Copper contacts for long-lasting reliability and consistent switching.
• Ideal for automotive, marine, industrial, auxiliary battery and power management systems.
• Backed by a 1-year warranty for peace of mind.

Specifications