Installation Guide Current Monitoring Z202265-0B Page 1 of 3 ©2013 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com 09133 Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries. Other companies’ trademarks are hereby acknowledged to belong to their respective owners. TM HAZARD OF ELECTRIC SHOCK, EXPLOSION, OR ARC FLASH • Follow safe electrical work practices. See NFPA 70E in the USA, or applicable local codes. • This equipment must only be installed and serviced by qualified electrical personnel. • Read, understand and follow the instructions before installing this product. • Turn off all power supplying equipment before working on or inside the equipment. • Use a properly rated voltage sensing device to confirm power is off. DO NOT DEPEND ON THIS PRODUCT FOR VOLTAGE INDICATION • Only install this product on insulated conductors. Failure to follow these instructions will result in death or serious injury. A qualied person is one who has skills and knowledge related to the construction and operation of this electrical equipment and the installation, and has received safety training to recognize and avoid the hazards involved. NEC2011 Article 100 No responsibility is assumed by Veris Industries for any consequences arising out of the use of this material. DANGER NOTICE • This product is not intended for life or safety applications. • Do not install this product in hazardous or classified locations. • The installer is responsible for conformance to all applicable codes. • Mount this product inside a suitable fire and electrical enclosure. Product Overview The H952 is a current-sensitive device that monitors current (amperage) in any of three field-selectable ranges; 0-30, 0-60, or 0-120 amperes. These ranges represent the maximum current that can be applied to the monitored conductor. The H952 transforms the monitored current into a 0-5 VDC output suitable for connection to building controllers or other appropriate data acquisition equipment. It is also equipped with a command relay. The H952 housing offers unprecedented mounting flexibility. The mounting bracket can be attached in three different places. Additionally, the bracket is compatible with the Veris AH01 DIN Rail clip, allowing DIN mounting. H952 Split-Core Current Transducer with Relay, 0-5 VDC Output TM Specifications Sensor PowerInduced from monitored conductor Amperage Range0 to 30/60/120 A (selectable) Insulation Class 600VAC RMS Relay SPST, N.O., 12VDC Frequency Range50/60 Hz Temperature Range-15° to 60°C (5° to 140°F) Humidity Range 10 - 90% RH, non-condensing Accuracy ±2% full scale from 10% to 100% (selected range) Response Time2 sec. Terminal Block Wire Size24-14 AWG (0.2 to 2.1 mm 2 ) Terminal Block Torque 3.5 to 4.4 in-lbs (0.4 to 0.5 N-m) Agency ApprovalsUL 508 open device listing Dimensions Removable Mounting Bracket 1.0” (25 mm) 0.8” (21 mm) 1.1” (26 mm) 3.1” (79 mm) Self-gripping Iris 2.8” (70 mm) Ø 0.3” (8 mm) 1.4” (36 mm) 2.5” (64 mm) 3.0” Bracket can be mounted on three sides for added installation exibility. Use DIN Rail Mounting clip (Veris part number AH01) to mount on standard DIN rail.Z202265-0B Page 2 of 3 ©2013 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com 09133 Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries. Other companies’ trademarks are hereby acknowledged to belong to their respective owners. Installation Guide Current Monitoring H952 TM Disconnect and lock out power to the enclosure containing the conductor to be monitored. 1. Locate a mounting surface for the removable mounting bracket that will allow the monitored conductor to pass through the center window when it is installed and that will keep the product at least ½” (13 mm) from any uninsulated conductors. Determine cable routing for the controller connection, allowing wiring to reach the mounting location. 2. Drill holes to mount the bracket to the chosen surface using the included screws. 3. Set the desired amperage range (30, 60, or 120 Amps). 4. Wire the output connections between the sensor and the controller (0-5 VDC). 5. Snap the sensor over the wire to be monitored and clip the assembly to the mounting bracket. 6. Scale the controller software to match the sensor’s output. 7. Secure the enclosure and reconnect power. Installation Notes For load currents greater than sensor maximum rating: Use a 5 Amp (H68xx series) current transformer (CT) as shown. This technique can be combined with wrapping (see below) to add range for a low current load on a high current source. DANGER: 5A CTs can present hazardous voltages. Install CTs in accordance with manufacturer's instructions. Terminate the CT secondary before applying current. CAUTION RISK OF EQUIPMENT DAMAGE • Derate the product’s maximum current for the number of turns through the sensing window using the following formula. Rated Max. Amps ÷ Number of Turns = Max. monitored Amps e.g. : 100A ÷ 4 Turns = 25 Amps max. in monitored conductor • Failure to follow these instructions can result in overheating and permanent equipment damage. 4x 1A H68xx-5A CT 240A 300A: 5A 4A >120 A (sensor max.) < 1.5 A (Sensor Min.) For load currents less than sensor minimum rating: Wrap the monitored conductor through the center window and around the sensor body to produce multiple turns. This increases the current measured by the transducer. Program the controller to account for the extra turns (e.g., if four turns pass through the sensor (as shown), divide the normal reading by 4). Fan or Pump CONTROLLER Motor CONTACTOR AI (0-5VDC) DO (Relay Coil) CONTROL POWERZ202265-0B Page 3 of 3 ©2013 Veris Industries USA 800.354.8556 or +1.503.598.4564 / support@veris.com 09133 Alta Labs, Enercept, Enspector, Hawkeye, Trustat, Aerospond, Veris, and the Veris ‘V’ logo are trademarks or registered trademarks of Veris Industries, L.L.C. in the USA and/or other countries. Other companies’ trademarks are hereby acknowledged to belong to their respective owners. Installation Guide Current Monitoring H952 TM Wiring Scaling SENSED AMPS 30/60/120A* 0V 0A 5V SENSOR OUTPUT *Factory calibrated ranges selected with the amperage range switch (Comm) - Automation Panel + 0-5 VDC Input Amperage Range + 120 60 30 Output 0-5 VDC N.O. Command Relay Output 9-12 VDC To Energize Relay - + Relay Information AC DC 24...................................................... .................................................................... 15mA 20mA 15mA 12 TYPICAL COIL PERFORMANCE Resistive ........ 5A@240 5A@30 VAC Inductive ........ 2A@240 2A@30 VAC VDC VDC CONTACT RATINGS (N.O.) RELAY Voltage Pull In Voltage 12VDC .............................................................. 8.4VDC Drop Out Voltage 12VDC .............................................................. 3.0VDCNext >