TE Connectivity Ltd. 4000-20A19BB835 Transformer

TE Connectivity's Potter & Brumfield 4000-20A19BB835 transformer is a compact 120 V primary to 24 V secondary power transformer rated at 10 VA, designed for 50/60 Hz operation in control and relay circuits. It provides a low-voltage 24 V supply suitable for energizing relays, sensors, and logic circuits in industrial equipment, test benches, and other electronics that require a safe step-down from mains. Key specifications include a 120 VAC primary, 24 VAC secondary, a 10 VA rating, and compatibility with both 50 Hz and 60 Hz mains. As part of TE Connectivity's Potter & Brumfield power transformer lineup, the 4000-20A19BB835 is a purpose-built solution for compact control-power needs where consistent voltage, reliable operation, and a small form factor are important.