MeK-Tronics Control Transformer 5814-0003-002

Rated at 480V primary to 24V secondary with a 40VA capacity, this MeK-Tronics control transformer carries part number 5814-0003-002 and is widely cataloged in the US market under Marley Engineered Products, Berko, and QMark branding. Internal markings also include MKT-04E0ZZ03-147 and date code T1 1624. The unit operates on 50/60 Hz input and uses Class 130 (B) insulation. UL recognition is indicated by the cULus mark with file number E528105, with Class 2 dry / Class 3 wet ratings noted on the nameplate.

The primary winding terminates in two black leads marked COM and 480V, while the secondary winding terminates in two yellow leads marked 24V. Construction is open frame with a laminated steel core, plastic bobbin, and integrated foot bracket for mounting. Pre-stripped flying leads are supplied for field termination, and red insulated quick-connect terminals are crimped onto the secondary leads.

Common applications include HVAC control circuits, electric heater controls, thermostats, relays, and other low voltage components fed from a 480V branch. This part is referenced as a service replacement across Berko, Marley, and QMark electric heater lines, and is cross referenced to Hartland Controls HCT-04E0K03201. Country of origin marked on the nameplate is Vietnam.

Stock # 0526-02261