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The Furman PS-8R Power Sequencer is needed whenever various kinds of equipment must be powered up or down in groups, rather than all simultaneously.
In audio systems, sequenced powering is often necessary to allow turn-on transients from low level amplifiers and processors to settle down before any power amps are turned on, because simultaneous powering would result in a loud, annoying, and potentially destructive damage reaching the speakers. And in any large system whose components present an inductive load to the AC line (including electric motors, power supplies, and power amplifiers of all kinds), sequenced powering can avoid excessive inrush currents that cause circuit breakers to trip even though the steady-state currents are not excessive. Using the PS-8R is a simple and inexpensive way to apply and remove power in a controlled, repeatable, foolproof 3-step sequence. It is ideal when large installations must be switched by inexperienced personnel. The PS-8R offers all basic power conditioning features besides its sequencing capability. It provides varistor spike and surge protection across all three modes, as well as a sophisticated EMI/RFI filter for blocking radio frequency line noise. Clean, filtered power is provided at all 9 outlets, even the unswitched ones. The PS-8R also assists in analyzing any faults that may occur in the AC mains wiring. Two green and one red neon indicators light in a specific pattern for normal wiring and in different patterns for various faults. When the AC wiring is correct, both green indicators will be lit. If a fault is present, a chart next to the indicators will identify its exact nature. FEATURES:• Power-up in three delayed outlet groups • Power-down reverses sequence • Triple-mode varistor spike and surge suppression • RFI filtering with multi-stage EMI/RFI filter • Power Status LED'''s indicate which outlets have power • Mains Wiring indicators monitor wiring integrity, show Normal and five kinds of faults • Remote option (model PS-8R) allows turn-on/turn-off at a distance simply by connecting a switch (and LED if desired) • Multiple units may be daisy-chained using PS-REL relay • Three unswitched outlets (one front, two rear) • 15 amp rating with circuit breaker • Three Year limited warranty SPECIFICATIONS:• Current rating: 15 amps • Operating Voltage: 85 to 135 VAC • Mains Wiring Analyzer: Detects 1 normal mode and 5 fault modes • Delay Interval: 5 seconds (adjustable with internal trimpot)/td> • Remote Switch: Momentary or maintained action. Screw terminals, 3 for switch, 1 additional for optional LED (22 ga. wiring minimum). • Spike Protection Modes: Line to neutral, neutral to ground, line to ground • Response time: 1 nanosecond • Maximum surge current: 6,500 amps • Maximum Spike Energy: 80 joules per mode, 240 joules protection • Noise attenuation: Transverse and Common Modes• 20 dB at 200 kHz, rising to > 40 dB, 1 to 100 MHz • Dimensions: 1.75" H x 19" W x 8" D. • Weight: 6 lbs. (2.7 kg.) • Construction: Steel chassis, .125" brushed and black anodized aluminum front panel; glass epoxy printed circuit boards • Power consumption: Off: 6 wattsOn: 8.5 watts • Safety Agency Listings: NRTL-C TUV
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Furman PS-8R Power Sequencer Reviews