Lowell SEQR-4 Power Sequencer 4 Channel 1U Rack Mount

Product Description

The LOWELL SEQR-4 is a 4-channel power sequencer designed for 1U rack installation in professional audio, AV, and systems integration applications. It controls the power-on and power-off order of connected equipment, preventing inrush current spikes and protecting downstream devices from startup transients. A front-panel rocker switch provides direct manual control. The sequenced switching design reduces stress on amplifiers, signal processors, and other rack-mounted gear by staggering their power cycles rather than energizing all loads simultaneously. Installation is handled by AV systems integrators, electricians, or qualified rack technicians.

The SEQR-4 is suited for 1U rack enclosures in both permanent and touring installations. It fits standard 19-inch rack rails and is appropriate for use in control rooms, equipment rooms, houses of worship, corporate AV systems, and similar fixed installations where multiple rack-mounted devices require controlled sequencing on power-up and power-down. The 4-channel configuration supports small to mid-size equipment racks.

Key Features

• 4-channel sequenced power output staggers device power cycling to limit inrush current
• 1U rack-mount form factor fits standard 19-inch rack enclosures
• Front-panel rocker switch for direct manual on/off control
• Reduces risk of amplifier and equipment damage caused by simultaneous startup loads
• Sold as a single unit (each)

Compatibility

Designed as an OEM-style rack power sequencer for 1U rack installations requiring multi-channel sequenced power control for AV and systems integration equipment.

Installation Notes

Installation should be performed by a qualified AV integrator or licensed electrician familiar with rack power distribution equipment. De-energize the rack and disconnect power to the system before mounting or wiring this unit. Secure the unit to standard 19-inch rack rails using appropriate rack screws before connecting load circuits. Verify that the total connected load does not exceed the unit's rated capacity before energizing.