Average Reviews:
(More customer reviews)We have used LC-1800s since the early 1990's and have only one complaint: if one of the mechanical relays that maintain the 110-120 VAC output fails, the associated indicator light on the front of the unit will still function as usual, and the user will thus not be aware of the failure. The result is that the equipment connected to the LC-1800 will be subjected to brown-out or over-voltage conditions.
The only way we have found to monitor the proper operation of the relays is to periodically plug our LC-1800s into a 140 VAC autotransformer, attach a VOM to one of the output duplexes, and slowly turn the autotransformer voltage down from 140 to 87, watching the VOM to see that the relays engage the various secondaries on the LC-1800's transformer and thus keep the output voltage in the 110-120 VAC range.
Before we began this monitoring, the main power switch on two different LC-1800s failed due to overheating. On each unit, one of the internal relays had failed, allowing low input voltage to flow through to the load and create an over-amperage draw that exceeded the rating on the power switches.
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Ideal for brownout conditions, our line regulators automatically adjust low or high voltage to nominal AC voltage (117V AC) without a battery. All models include built-in spike and noise filtering. Our LC models feature premium ISOBAR surge suppression and multi-colored input voltage LEDs.
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