Furman CN-1800S SmartSequencing Power Conditioner and Surge Protector
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Description
Furman CN-1800S SmartSequencing™ Power Conditioner and Surge Protector
The Furman CN-1800S is an advanced 15A power management solution designed for professional audio and video installations. Engineered with Furman’s innovative SmartSequencing™ technology, this unit provides seamless power control and protection across multiple zones, ensuring synchronized sequencing for sensitive equipment. Whether used in live venues, studios, or corporate environments, the CN-1800S offers exceptional reliability and flexibility for critical power management applications.
This power conditioner boasts state-of-the-art surge protection with Series Multi-Stage Protection (SMP) and Linear Filtration Technology (LiFT) to safeguard connected devices against electrical spikes and reduce AC noise. The Extreme Voltage Shutdown (EVS) feature prevents damage caused by hazardous overvoltages. A user-friendly front panel includes diagnostic LEDs, a key-switch, and hidden controls for secure and customized operation.
With RS-232 compatibility, remote control functionality, and multiple outlets for varied configurations, the CN-1800S is a versatile and indispensable addition to any professional A/V setup. Designed to handle demanding environments, this power conditioner ensures optimal performance and peace of mind for mission-critical applications.
Key Features
- SmartSequencing™ for synchronized power management across zones.
- Advanced SMP surge protection and EVS overvoltage shutdown.
- LiFT technology for superior noise filtration.
- RS-232 compatibility for remote control and diagnostics.
- Secure front panel with diagnostic LEDs and hidden controls.
Technical Specifications
Family: Contractor Series
Line Voltage: 120 Volts
AC Receptacles: Rear Panel: 2 Unswitched NEMA 5-15R (1 duplex), 6 Sequenced NEMA 5-15R (3 duplex)
Front Panel: 1 NEMA 5-15R Convenience Outlet, Unswitched
AC Surge Protection: SMP
Spike Protection Mode: Line to neutral, zero ground leakage
Spike Clamping Voltage: 188VAC peak @ 6,000 volts/3,000 amps
Response Time: 1 nanosecond
Maximum Surge Current: 6,500 Amps
AC Undervoltage Protection: EVS, 77VAC +/-3VAC
AC Overvoltage Protection: EVS, 145VAC +/-5VAC
AC Overvoltage Reset Modes: Manual and Auto-reset (configurable)
AC Filtering: LiFT
Noise Attenuation: Linear, 10dB @10KHz, 40dB@100KHz, 50dB@500KHz
Operating Temperature Range: 40°F to 105°F
Humidity Range: <90% Relative Humidity
Key-switch: Front panel, 3-position key-switch (On, Off, Remote), keys included (1 pair)
Push-button Switch: Front panel, hidden by security cover
Circuit Breaker: Front panel, push-button, 15A Thermal Breaker
Front Panel Diagnostic Indicators: Primary link, Secondary link, Ethernet, Remote off, Delay 1, Delay 2, Delay 3, Power, Protection OK, Extreme Voltage
Front Panel DIP Switches: Hidden by security cover: 1 Minute Delay, 2 Minute Delay, 4 Minute Delay, Force Off NO/NC, 12V Mode On/Off BND Mode On, Momentary/Maintained, Primary/Secondary, EVS Reset Auto/Manual
Potentiometer: Front panel, hidden by security cover, fine tune delay adjust
Control/Status/Triggering (Rear Panel): Remote Terminal +5-30VDC In, 12VDC (12mA) Out
SmartSequencing: Phoenix 4-Pin Connector, Screw Terminals, Primary & Secondary Links (Current Loop – 1,000' nominal)
Remote Terminal: Phoenix 4-Pin Connector With Screw Terminals; +12V, STAT, REM, GND (Class 2 Wiring)
RS-232 Compatible: Yes, DB-9 Connector
Voltmeter: Available with RS-232, ± 2VAC accuracy
Ammeter: Available with RS-232, ±1A accuracy
Power Consumption (No Load): 10 Watts
Safety Agency: NRTL-C, RoHS Compliant
Installation / Use Cases
- Use the 15A power conditioner for coordinated power management in professional audio and video systems installed in studios, live venues, and corporate AV environments.
- Sequence connected equipment across multiple zones with SmartSequencing to manage startup and shutdown order in compatible systems.
- Use SMP surge protection, LiFT filtering, and EVS protection to help protect connected equipment from electrical surges, AC-line noise, and hazardous voltage conditions.
- Integrate the unit into compatible remotely controlled installations using RS-232 and rear-panel control connections.
Package Contents
- Furman CN-1800S Power Conditioner
- Front panel key-switch with 1 pair of keys
- Owner’s manual

Frequently Asked Questions
What is SmartSequencing on the Furman CN-1800S?
SmartSequencing allows compatible power systems to coordinate startup and shutdown across multiple zones.
How many AC outlets does the CN-1800S provide?
The rear panel has six sequenced NEMA 5-15R outlets and two unswitched NEMA 5-15R outlets, while the front panel provides one unswitched convenience outlet.
What surge and voltage protection does the CN-1800S use?
It uses Furman SMP surge protection along with EVS undervoltage and overvoltage protection.
Does the CN-1800S filter AC-line noise?
Yes. It uses Furman LiFT linear filtering technology for AC noise attenuation.
Can the Furman CN-1800S be remotely controlled?
Yes. The unit includes RS-232 compatibility and rear-panel remote control and triggering connections.
What line voltage and circuit protection does the CN-1800S use?
It is specified for 120V operation and includes a front-panel 15A thermal circuit breaker.


