ST9120U1011 | Honeywell Universal Electronic Fan Timer Control Board for Gas Furnace Blower and Fan Sequencing Interface Panel The E3JM-R4M4-US delivers precise and

The E3JM-R4M4-US delivers precise and reliable performance in demanding industrial settings

3 mΩ at Ith 350 A / 50 Hz Power Dissipation per Pole 37 W (AC-1) Maximum Operating Rate 2400 cycles/hour at 55°C Operating Temperature –5…55°C Storage Temperature –60…80°C Permissible Ambient Temperature –40…70°C Operating Altitude Up to 3000 m Protective Treatment TH Compatibility Code LC1F Coil Not included (ordered separately)

Stable power regulation: Maintains consistent output for sensitive equipment

000 ft) Baud Rates 57

ST9120U1011 | Honeywell Universal Electronic Fan Timer Control Board for Gas Furnace Blower and Fan Sequencing Interface Panel The E3JM-R4M4-US delivers precise andDescription The Honeywell ST9120U1011 is a universal electronic fan timer control board designed to manage combustion blower and circulating fan operation in gas warm air furnace systems. This module provides timed control for heating and cooling fan delays while supporting optional humidifier and electronic air cleaner connections. The ST9120U1011 ensures stable sequencing performance and compatibility across multiple furnace platforms. Technical