Littlefuse 201-575-AU Voltage Monitor Product Description
The 201A-AU is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50/60Hz motors regardless of size. Has user adjustable 1-30 second trip delay, manual or 1-500 second restart delay, and 2-8% voltage unbalance trip point. The product also provides a user selectable nominal voltage setpoint and the voltage monitor automatically selects between the 200V and 400V range. The Model 201A-AU includes advanced single LED diagnostics, where five different light patterns distinguish between faults and normal conditions.
This unique microcontroller-based voltage and phase-sensing device constantly monitors the 3-phase voltages to detect harmful power line conditions. When a harmful condition is detected, the 201A-AU's output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to acceptable levels.
Littlefuse 201-575-AU Voltage Monitor Typical Applications
- Fans
- Compressors
- Air Conditioners
- Heat Pumps
- Well Pumps
- Sump Pumps
- Small Conveyor Motors
Littlefuse 201-575-AU Voltage Monitor Features
- Protects 3-Phase Motors from:
- Loss of any Phase
- Low Voltage
- High Voltage
- Voltage Unbalance
- Phase Reversal
- Rapid Cycling
- Four Adjustment Pots Provide Versatility for Numerous Applications.
- Universal Range From 190-480VAC, 50/60Hz Provides Versatility to Handle
Global Applications.
- Bi-Color LED Indicates Trip Status and Provides Simple Troubleshooting.
- Microcontroller-Based Circuitry Provides Better Accuracy and Higher
Reliability Than Analog Designs.
- Transient Protection Meets
- IEEE and IEC Standards and Permits Operation Under Tough Conditions.
- Single-Phase Conditions are Detected Regardless of Regenerated
Voltages.
SymCom 201-575-AU Voltage Monitor Specifications
3-Phase Line Voltage . . . . . . . . . . . . 475-600 VAC
Frequency
. . . . . . . . . . . . . . . . . . . . . 50 or 60 Hz
Low Voltage (% of set point)
- Trip . . . . . . . . . . . . . . . . . . . . . . . . . . 90% ±1%
- Reset . . . . . . . . . . . . . . . . . . . . . . . . . 93% ±1%
High Voltage (% of set point)
- Trip . . . . . . . . . . . . . . . . . . . . . . . . . . 110% ±1%
- Reset . . . . . . . . . . . . . . . . . . . . . . . . .107% ±1%
Voltage Unbalance
- Trip . . . . . . . . . . . . . . . . . . . . . . . . . .2-8% adjustable
- Reset
- . . . . . . . . . . .Trip Setting Minus 1% (5-8%)
- . . . . . . . . . . .Trip Setting Minus 0.5% (2-4%)
Trip Delay Time
- High, Low and Unbalanced Voltage . . . . . . . . . . . . . . . . 1-30 seconds adjustable
- Singe Phasing Faults . . . . . . .1 second fixed
Restart Delay Time
- After a Fault . . . . . . . . . . . . . . . . . Manual, 1-500 seconds adj
- After a Complete Power Loss. . . . . . . Manual, 1-500 seconds adj.
Output Contact Rating (1-Form C)
- Pilot Duty. . . . . . . . . . . . . . . . . . . . . . . . 480 VA @ 240
VAC, B300
- General Purpose . . . . . . . . . . . . . . . . . . . . . . . . 10A @240
VAC
Ambient Temperature Range
- Operating . . . . . . . . . . . . . . . . . . . . . . . . -40° to 70°C (-40° to 158°F)
- Storage . . . . . . . . . . . . . . . . . . . . . . . . . . -40° to 80°C (-40° to 176°F)
Trip & Reset Accuracy . . . . . . . . . . . . . ±1%
Maximum Input Power . . . . . . . . . . . . . 5 Watts
Relative Humidity . . . . . . . . . . . . . 10-95%, non-condensing per IEC 68-2-3
Terminal Torque . . . . . . . . . . . . . 12 in.-lbs. (for OT08-PC socket)
Wire Gauge . . . . . . . . . . . . . 12-22 AWG solid or stranded
Electrostatic Discharge(ESD) . . . . . . IEC 61000-4-2, Level 3, 6kV Contact, 8kV Air
Radio Frequency
- Immunity, Radiated . . . . . . . . . . . .150MHz, 10V/m
- Fast Transient Burst. . . . . . IEC 61000-4-4, Level 3, 3.5kV Input Power and Controls
Surge
- IEC . . . . . . . . . . . .IEC 61000-4-5, Level 3, 4kV line-to-line; Level 4, 4kV line-to-ground
- ANSI/IEEE . . . . . .C62.41 Surge and Ring Wave Compliance to a level of 6kV line-to-line
- Hi-Potential Test . . . . . .Meets UL508 (2 x rated V +1000V for 1 min.)
Safety Marks
- UL (OT08PC Octal Socket Required) . .UL508 (File #E68520)
- CE . . . . . . . . . . . IEC 60947-6-2
Enclosure . . . . . . . . . . . . . . . . . . . . . . . . Polycarbonate
Weight . . . . . . . . . . . . . . . . . . . . . . . . 11.2 oz.
Mounting Method
. . . . . . . . . . . DIN Rail or Surface Mount (plug in to OT08PC socket)
Socket Available
. . . . . . . . . . . Model OT08PC (UL Rated 600V)
The 600V socket can be surface mounted or installed on DIN Rail.
Must use Model OT08PC socket for UL Rating!
*Note: Manufacturer’s recommended screw terminal torque for the OT Series Octal Sockets is 12 in.-lbs.
WARNING:
Cancer and Reproductive Harm - www.P65Warnings.ca.gov
SymCom Warranty
SymCom Limited Warranty
Terms and Conditions of Sale
Effective January 1, 2009 General Remarks: These Terms and Conditions of Sale apply to all sales and deliveries effected by SymCom. Any terms or conditions on the part of the purchaser that are contrary to these shall not be binding on SymCom, even if they form the basis of the order. Prices: Subject to change without notice. Minimum order is one hundred-fifty dollars ($150.00), excluding shipping charges. Terms: Net 30 days from ship date with approved credit. New customers requesting trade credit must submit a credit application prior, and receive approval prior to an order being placed in production. Handling Fee: A $5.00 handling fee will be assessed on each order. Delivery: Buyer's delivery schedule will be met to the best of SymCom's ability. SymCom reserves the right to make partial shipments on any order. SymCom is not responsible for shipping errors on behalf of the carrier. Freight: All sales are F.O.B., SymCom, Inc., Rapid City, SD. Shipments will be made by the transportation method selected by the Buyer whenever practical. Warranty: SymCom warrants its standard products against defects in material or workmanship for a period of five (5) years from the date of manufacture. All third-party products are warranted by their manufacturer and are handled as a pass-through warranty by SymCom. All custom and private labeled products are warranted for eighteen (18) months unless otherwise stated in writing. The liability of SymCom is limited, at its option, to replace, repair, or credit at the purchase price, for any devices which are returned during the warranty period and which prove to be defective. This warranty constitutes SymCom's sole liability here under and is in lieu of any other warranty expressed, implied or statutory, written or oral, including without limitation, any implied warranties of merchantability or fitness for a particular purpose and supersedes any representations made by any person which are inconsistent with or expand the terms set forth in this document. No person is authorized to modify this warranty in any way whatsoever. Limits of Liability: IN NO EVENT, REGARDLESS OF CAUSE, SHALL SYMCOM BE LIABLE FOR (1) PENALTIES OR PENALTY CAUSES OF ANY DESCRIPTION OR (2) FOR CERTIFICATION NOT OTHERWISE SPECIFICALLY PROVIDED HEREIN AND/OR INDEMNIFICATION OF BUYER TO OTHERS FOR COSTS, DAMAGES OR EXPENSES, EACH ARISING OUT OF OR RELATED TO THE PRODUCT OR SERVICES OF ANY ORDER OR (3) FOR ANY DAMAGES, WHETHER GENERAL, SPECIAL, OR FOR NEGLIGENCE, AND EXPRESSLY EXCLUDES DAMAGES RESULTING FROM LOSS OF PROFITS, USE OF PRODUCTS, ANY INCIDENTAL, OR INDIRECT CONSEQUENTIAL DAMAGES EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGES. SYMCOM'S OBLIGATION TO REPAIR, REPLACE OR CREDIT THE PURCHASE PRICE SHALL BE THE LIMIT OF ITS LIABILITY UNDER THIS WARRANTY. Returns: All returns must be authorized by SymCom and must have a Return Material Authorization (RMA) number. Issuance of a RMA number does not acknowledge goods as defective or under warranty by the seller. Unauthorized returns will be refused. Authorized returns must be shipped freight prepaid and are subject to inspection and/or testing prior to disposition. Product built to Buyer's specifications cannot be returned for credit or exchanged under any circumstances. For SymCom’s complete RMA terms, please visit our website. Cancellation of Custom or Non-Preferred Products: Buyer may cancel an order upon written notice to SymCom's customer service department and upon payment of cancellation charges, which shall include all costs, both direct and indirect, incurred and/or committed. SymCom agrees to divert completed work and work in progress from a cancelled order to other orders whenever possible. Cancellation of Preferred Products: Full refund if returned within 30 days of purchase. Unit must be in original packaging and in new condition. An RMA must be issued for any return.