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SymCom 520CS-115 Three-Phase Current Monitor

Price: Discontinued
+ -
Discontinued or no longer available.
SKU: MSR520CS115


Shipping Weight:
3.0 LBS
Shipping Dimensions
Length: 6 In
Width: 6 In
Height: 10 In
WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.gov

SymCom your electronic and control & protection specialists

SymCom 520CS-115 Voltage Monitor Product Description

SymCom’s Model 520CS-115 is a fully programmable, microcontroller-based, current sensing device designed to monitor 3-phase pumps or systems with ramp up times of up to 50 seconds. Applications include submersible pumps, booster pumps, reverse osmosis systems, centrifugal pumps, vertical turbine pumps, oil well pumps, chemical pumps or other similar systems.

Three external current transformers must be utilized in conjunction with the Model 520CS. The following 7 set points can be set and viewed from the 3-digit alphanumeric LED: overcurrent trip point, undercurrent trip point, current unbalance trip point, trip delay, rapid cycle timer (RD1), overload restart delay (RD2), underload restart delay (RD3), number of restarts after a fault, and motor acceleration time. Last fault diagnostics is also viewable. When a harmful condition is detected, the 520CS’s output relay is deactivated after the specified trip delay. The output relay reactivates after the appropriate RD2 or RD3 timer has expired. If the pump is started on a single-phase or a reverse-phase condition, the Model 520CS deactivates its output relay in 0.5 seconds.

SymCom 520CS-115 Voltage Monitor Typical Applications

  • Fans
  • Compressors
  • HVAC
  • Heat Pumps
  • Well Pumps
  • Sump Pumps
  • Small Conveyor Motors
  • Oil Rigs

SymCom 520CS-115 Voltage Monitor Features

  • Protects Three-Phase Motors From:
    • Overcurrent
    • Undercurrent
    • Current Unbalance
    • Rapid Cycling
    • Single Phasing
    • Phase Reversal
  • 3-Digit LED Diagnostic Display
  • Last Fault Diagnostics
  • Automatic or Manual Reset
  • Remote Reset Capability
  • UL Listed
  • CSA Approved
  • 5-Year Warranty
  • Made in USA

SymCom 520CS-115 Voltage Monitor Specifications

Three-Phase Line Voltage . . . . . . . . . . . . 100-130 VAC

Frequency . . . . . . . . . . . . . . . . . . . . . 50*/60Hz

Maximum Full Scale Current . . . . . . . . . . . . 5 Amps (max.)

Fixed Operating Point; Reverse & Single-Phase

  • Trip Delay . . . . . . . . . . . . . . . . . . . . . . . 0.5 second
  • Trip Point Accuracy . . . . . . . . . . . . . . . . ±2%
  • Timing Accuracy . . . . . . . . . . . . . . . . ±25%, ±1 second

Output Contact Rating

  • (SPDT) 520CP115, 520CP230, 520CS115 . . . . . . . . . 480VA @ 240VAC Pilot Duty
  • . . . . . . . . . . . . . . . . . . . . . . . . . . . . or 10A General Purpose
  • 520CP460. . . . . . . . . . . . . .470VA @ 600VAC Pilot Duty

Temperature Range . . . . . . . . . . . . . . . . . . . . . 0° to 70°C (32° to 158°F)

Power Consumption . . . . . . . . . . . . . 5 Watts (Max.)

Transient Protection (Internal) . . . . . . . . . . . . . 2500V for 10 ms

Safety Marks

  • UL . . . . . . UL508 (File #E68520)
  • CE . . . . . . . . . . .C22.2 (File #46510)

Weight . . . . . . . . . . . . . . . . . . . . . . . . 35.2 oz.

Mounting Method . . . . . . . . . . . Four #10 or #12 screws (3/4”-1” in length)

Options (additional cost) . . . . . . . . . . . DPDT Relay Contacts

*Note: 50Hz will increase all delay timers by 20%

Requires external current transformers (sold separately).


WARNING Cancer and Reproductive Harm - www.P65Warnings.ca.govWARNING: 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.

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