WHRS22NSF12, WHRS22NSF14, WHRS22NSF16 Automatic Voltage Regulators

Applications Rural and remote homes with poor power quality and frequent brownouts Broadcasting: Transmitters, Receiving Stations, Studios, Mobile Production Vehicles Electronic Equipment: Computers, Telecommunications, Radar Industrial: Distribution Equipment, Motors, Resistance Heating, Magnetic Solenoids & Clutches, Plating, Welders, Machine Tools, Battery Chargers, Test Stands Lighting: Incandescent, Fluorescent, High-Intensity Discharge, Infrared Marine: Shore Power, Private & Commercial Vessels Medical: X-Ray Machines, CAT Scanners, MRI Equipment

Standard Features Included Single phase 120/240V 50/60Hz standard Voltage Input Range -20% to +10% Excellent Accuracy Holds Output Voltage Within ±1% Single Hot Leg Voltage Sensing Control Input range can be shifted to provide greater low voltage protection All Buck or Boost (lower/raise) Capability High Energy Transient Suppression Efficiency 99 % Typical at full load No Waveform Distortion - less than 1% added Low Impedance Fast Response Time No Power Factor Restrictions Good Ambient Temperature Rating - maximum of 40C (104F) and the average temperature over any 24 hour period does not exceed 30C (86F). Extended Temperature Limits - average temperature for any 24 hour period may be increased to 40C (104F) and the maximum temperature may be increased to 50C (122F) if the load does not exceed 90% of the unit’s rating. Standard Ratings apply to operation in altitudes up to 6,600 Ft. (2,000 meters). High Overload Capability - 100% rated continuous, 200% rated 60 seconds, 400% rated 3 seconds 2 Year Warranty Designed for UL & CSA Approvals	Additional Options Available (request quote) Three Phase Models ZIG-ZAG on input to derive neutral when it connection is not easily available for 3 phase units All Voltages up to 660 Volts Expanded Wide Input Voltage Range -30% to +15% Individual Phase Control Full Range of Power Ratings 19" Rack Mount Versions Tropicalization Treatment - for operation in a high humidity environment. Prevents insulation moisture absorption/degradation, fungus growth, corrosion of metal Input Circuit Breaker Shunt or Undervoltage Trip for abnormal frequency, phase loss/reversal Bypass Switch Ammeters Frequency Trip Meter Input Voltage Range Alarm Contacts Phase Loss - Reversal Alarm Contacts Manual Raise - Lower Switches Delayed Output - prevents equipment damage when power company restoration is erratic, and allows time for the power to stabilize before energizing the load Soft Start - reduced initial turn-on voltage in order to limit inrush currents, mechanical shock, thermal shock, etc. to loads Casters for floor mount models


cabinet configurations	system block diagram	control module	power module	outline dimensions (single phase)	technical brochure
click thumbnail image above to enlarge

Parameter	WHRS22NSF12	WHRS22NSF14	WHRS22NSF16
Rated Output	19 kVA	38 kVA	57 kVA
Regulation Input Voltage Range¹ and frequency	-20% to +10% of nominal, 50-60 Hz
Maximum Input at 240V - 20%	100A	200A	300A
Recommended Input Circuit Breaker²	100A 2-pole	200A 2-pole	300A 2-pole
Rated Output at 240V	80A	160A	240A
Recommended Output Circuit Breaker	80A 2-pole	175A 2-pole	250A 2-pole
Heat Generated at Full Load	665 BTU/hr (195 Watts)	1,330 BTU/hr (390 Watts)	1,995 BTU/hr (585 Watts)
Warranty	2 years	2 years	2 years
Dimensions - inches W x D x H (encl designation)³	26 x 18 x 34 (C)	26 x 18 x 56 (E)	26 x 18 x 74 (F)
Weight (net/shipping)	362 lbs / 412 lbs	580 lbs / 675 lbs	781 lbs / 831 lbs


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