CRDCS-050

Direct Current Sensing Relay The CR5395 Series, Direct Current Sensing Relay provides a precision and cost effective method for monitoring Direct Current. Magnetic Modulator Technology is utilized for the current sensing to provide a stable and highly repeatable current trip. The current-carrying wire is routed through the opening extending through the top of the case. When current reaches the level set by the trip point adjustment, the relay trips and starts the adjustable timer. After the timer cycles the electromechanical relay energizes. CR5395 Series Applications OUTPUT OPTIONS The Relay is available with three different output configurations, electromechanical relay, optoisolated NPN transistor or ZeroCrossing optoisolated triac. Specify desired selection in part number. RELAY (-ELR) Relays, Switches, & Sensors D Arrangement: 1 Form C (SPDT) Contact Material: Silver-cadmium oxide Terminals: 31/4” Male QC Mechanical Life: 10 million operations, typ.@ rated load Electrical Life: 100,000 operations, typ. @ rated load Initial Contact Resistance: 50 milliohms max. @ 500 mA, 12 VDC Contact Rating: UL508/873 & CSA DC SWITCHING (-NPN) Vce (full off): 30 VDC max. Isink (full on): 120 mADC max.@ rated full-on Vce (full on): 1.5 VDC @ 120 mADC Isink Off state leakage current: 5ua @ 30 VDC (typical) Terminals: 21/4” Male QC AC SWITCHING (-TRC) DC motor drives Battery Chargers Power Supply Management Uninterruptible Power Systems Motor Application Features Variable Trip Point and Time Delay Bi-polar Monitors Currents from 1.0 ADC to 100 ADC Electrical Isolation Between Circuits Output Relay Rated up to 20 Amps LED Trip Status Indicator Dead Band Prevents Relay Chatter Calibrated Dial External Current Transformers Available Specifications Mounting: 3/16” dia. clearance holes on 115/16”by 215/16”centers Environmental: Operating Temperature: -30° C to +70° C Storage Temperature: -55° C to +85° 0-95% RH, Non-condensing Input Supply Power: Typical 80mA Max 100mA Sensed Current: Max. Continuous: 200% Full Scale Altitude: 2000 meters max. (Contact factory for High Altitude applications) Weight 0.5 LBS. Regulatory Agencies Off state voltage: 240 VAC RMS max. Minimum switch voltage: 24 VAC RMS On state current: 500 mA RMS max. continuous Switching mode: Zero Crossing Off state leakage: 60 ua @ 240 VAC max. Terminals: 2 @ 1/4” Male QC The Professional Energy Monitoring Company M N TI ISO 9001:2008 Quality Management System E234389 VOLTAGE 240 VAC 240 VAC 125 VAC 28 VDC LOAD TYPE Resistive Motor Motor Resistive N.O. CONTACT 20A 2HP 1HP 20A N.C. CONTACT 10A 1/2 HP 3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119 Web: http://www.crmagnetics.com 64 E-mail: sales@crmagnetics.com 1/4 HP 10A Direct Current Sensing Relay CR5395 Series OUTLINE DRAWING A CRDCS B C D -100 2.88 1.60 12 0.79 73.16 40.58 304.8 20.07 -200 3.25 1.75 12 0.82 82.55 44.45 304.8 20.83 A D C B Top view of Current Sensing Relay Shown with Remote Current Transformer Option (-R) Remote Current Transformers CRDCS - Series PART NUMBER - TRIP POINT DIAL CD - Calibrated Dial FP - Fixed Trip Point TRIP RANGE 110 - 1.0 to 10 ADC 330 - 3.0 to 30 ADC 660 - 6.0 to 60 ADC 101 - 10 to 100 ADC I - INTERNAL TRANSFORMER R1 - REMOTE TRANSFORMER w/ CRDCS-100 (1.60” window diameter) R2 - REMOTE TRANSFORMER w/ CRDCS-200 (1.75” window diameter) The trip ranges shown are for one wire pass through the window opening. The trip range may be proportionally lowered with additional wire passes through the window. 30 25 (Specify value of fixed trippoint with order) 3 All supply voltage tolerances are ± 10 % - 20 ACV - 85 to 265 VAC/VDC 24D - 24 VDC - 15 SUPPLY VOLTAGE - D CURRENT TRIP - No adjustment dial provided with the fixed set point option - CD - FP -3.30 trip range shown OUTPUT OPTIONS TRIP ON DELAY A - .5 to 6 Sec. B - 2 to 25 Sec. C - .1 to 1 Sec. X - none NC NO COM + + - Time-on delay is the time from when the relay trips to when the output energizes. The ranges are guaranteed minimum, actual range may be slightly greater. ELR Electromechanical Relay NPN Optoisolated NPN Transistor Example Part Numbers: CR5395-EH-ACV-110-CD-ELR-I (Relay with CT on board) CR5395-EL-24D-330-CD-NPN-R1 (Relay with external CRDCS-100) The Professional Energy Monitoring Company M N TI ISO 9001:2008 Quality Management System 3500 Scarlet Oak Blvd. St. Louis MO USA 63122 V: 636-343-8518 F: 636-343-5119 Web: http://www.crmagnetics.com 65 E-mail: sales@crmagnetics.com TRC Optoisolated Triac, Zero Crossing D Relays, Switches, & Sensors TRIP STATUS EH - Energized on High, trips when sense current is above trip point and returns to non-trip status when sense current is below the trip point. EL - Energized on Low, trips when sense current is below trip point and returns to non-trip status when sense current is above the trip point. LH - Latch on High, trips when sense current is above trip point and remains tripped until supply power is removed. LL - Latch on Low, trips when sense current is below trip point and remains tripped until supply power is removed. - 5 - 10 CR5395