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3 Installation Instructions

10

3.4 

Variations and Installation of Current Transformers

 

 

WARNING: Always open or disconnect the circuit from the power distribution system of a 
building before installing or servicing current transformers to reduce risk of electric shock.

 

 WARNING: 

In accordance with NEC, CTs may not be installed in any panel board where they 

exceed 75% of the wiring space of any cross-sectional area.

General Requirements:

• 

Splices on the CT leads must be within the meter enclosure, not inside the conduit. Leviton 
provided CT leads are 48 inches minimum. Wire insulation should be stripped so that the bare 
conductor length that connects to the meter terminal block does not exceed 0.300 inches.

• 

CTs should be securely fastened such that they will not slide down to live terminals.

• 

Wires should be tightened so that they are held snuggly in place, but do not to over-tighten, as this 
may compress and weaken the conductor. Maximum rated torque for CT terminal blocks is 
4.4 in-lb.

• 

Current and voltage inputs must be installed  in phase‘ (e.g. CT1 on Line 1, CT2 on Line 2, CT3 on 
Line 3) and oriented correctly as shown in Hookup Diagrams in Figures 8 and 9.

Figure 5: CT Terminal Block

CT Terminal Block in Place

CT Terminal Block Removed

WEB 

VERSION

Содержание 3300 series

Страница 1: ...727 10 00 0A Series 3300 Multi Function Meter with RS485 Communications Series 3500 Multi Function Meter with Ethernet Communications Cat No 3KUMT 3NUMT 3OUMT 3RUMT Installation and User s Manual WEB VERSION ...

Страница 2: ...WEB VERSION ...

Страница 3: ...ures and Functionality 15 4 1 Display 15 4 2 Display Sequence and Screen Numbers 16 4 3 Power on Sequence 16 4 4 Descriptions of Displayed Information 17 4 5 Manually Setting the Real Time Clock 19 5 Real Time Clock RTC Battery Replacement 20 6 Communications Series 3300 RS485 Communication Models 21 6 1 Modbus RTU Quick Start Guide 21 6 2 BACnet MS TP Quick Start Guide 24 7 Communications Series ...

Страница 4: ...d period of time Percentage Error The difference between percentage registration and 100 Percentage Registration The ratio of the actual registration to the true value expressed as a percent Power Active The instantaneous power measured in Watts W Power Apparent The product of rms current and voltage measured in Volt Amperes VA Registration The amount of electric energy or other quantity recorded ...

Страница 5: ...ces of power have been disconnected before servicing Do not depend on this product for voltage indication Only install this product on insulated conductors If the meter appears damaged or defective first disconnect all power to the meter Then call or email technical support for assistance Bonding is not automatic for metal conduit connections separate bonding is to be provided see note 1 Installati...

Страница 6: ... the model number and electrical specifications of the device being installed to confirm they are appropriate for the intended electrical service see Section 2 2 Consult local codes for any possible permits or inspections required before beginning electrical work 3 Outdoor applications Ensure the conduit for the installation is flexible and non metallic Conduit and conduit fittings must be rated UL Ty...

Страница 7: ...he following additional requirements apply for Recognized board versions of the VerifEye meter For use only with Listed Energy monitoring Current Transformers Associated leads of the current transformers shall be maintained within the same overall enclosure Unless the current transformers and its leads have been evaluated for REINFORCED INSULATION the leads must be segregated or insulated from dif...

Страница 8: ...uracy energy data with solid core CTs or easy to install split core CTs Wide operating temperature range Built in LCD display Battery backed up real time clock RTC for TOU meter readings Low voltage detection CT reverse energy direction indicator arrow Voltage current and power consumption per phase Power Factor Communication Options RS485 Options Series 3300 Modbus RTU BACnet MS TP Ethernet Optio...

Страница 9: ...00A Split Core 04 400A Split Core 08 800A Split Core 16 1600A Split Core 30 3000A Split Core 50 5000A Split Core Kit Type K Indoor Steel O Outdoor Plastic NEMA 4X Kit Type K Indoor Steel O Outdoor Plastic NEMA 4X Voltage Rating U Universal 208 480VAC Voltage Rating U Universal 208 480VAC Communication Protocol MR Modbus RTU 3300 BM BACnet MS TP 3300 MT Modbus TCP or BACnet IP 3500 Communication Pr...

Страница 10: ... serial number are converted to a hexadecimal number For instance meter C3591 is stored as 0x005C27 Figure 1 Series 3300 3500 Serial Number Format YYDDDA0000 Input Configurations Delta No Neutral Configurations 3PH 3W 208VAC 3PH 3W 480VAC WYE With Neutral Configurations 3PH 4W 120 208VAC 3PH 4W 277 480VAC Supply Voltage Range Line 1 to Line 2 177 552 VAC Maximum Input Power 10 2 VA Max Maximum Rated ...

Страница 11: ... RS485 outputs 14 18 AWG 4 4 in lb of torque maximum Environment Pollution Degree 2 Normally only non conductive pollution occurs Occasionally however a temporary conductivity caused by condensation must be expected Table 1 Series 3300 3500 electrical specifications 2 4 I O Connections and User Display Voltage Inputs Description L1 Voltage Input Line 1 L2 Voltage Input Line 2 L3 Voltage Input Line ...

Страница 12: ...y delivered pulse output collector connection of an NPN opto isolated transistor 10 Watthour Wh pulse rate 5 watthours on 5 watthours off VCE 70VDC ICE 50mA max COM Terminal 2 Common connection emitters for 10 Wh and 1 kWh Isolated Pulse Outputs 1k Terminal 3 Real Energy kWh consumption energy delivered pulse output plus connection collector of an NPN opto isolated transistor 10 Watthour Wh pulse ...

Страница 13: ... is designed for use with Leviton CTs see Section 3 7 for details Conduit and fittings see note 5 in Section 3 3 3 2 Mounting the Enclosure 3 2 1 Mounting Location Series 3300 3500 meters require a switch or circuit breaker as part of the building installation The switch or circuit breaker must be marked as the disconnecting device for the meter It is recommended that the enclosure be mounted near ...

Страница 14: ...te to fittings and large enough to fit all voltage and CT wiring Keep drill bit away from components inside the enclosure Remove shavings from enclosure after drilling conduit holes 3 2 3 Mounting Procedure and Conduit Installation 1 Fasten the enclosure to the selected surface using the mounting holes and appropriate screws There are mounting holes on both top and bottom of each enclosure See Figur...

Страница 15: ...3 Installation Instructions 8 8 205 9 656 2 500 9 052 1 110 8 242 4 993 Figure 3 Series 3300 3500 Indoor Steel Enclosure Dimensions in Inches WEB VERSION ...

Страница 16: ...e terminal block The rated torque for these terminal blocks is 12 in lb and can be used with 14 AWG solid or stranded copper wires 2 Connect 600 V min insulated wiring for Line voltages and Neutral to the appropriate locations in the breaker panel in accordance with all national and local electrical codes see Hookup Diagrams in Figures 8 and 9 below for correct wiring information 3 Route wires thr...

Страница 17: ... provided CT leads are 48 inches minimum Wire insulation should be stripped so that the bare conductor length that connects to the meter terminal block does not exceed 0 300 inches CTs should be securely fastened such that they will not slide down to live terminals Wires should be tightened so that they are held snuggly in place but do not to over tighten as this may compress and weaken the conduc...

Страница 18: ... connects to the appropriate X1 terminal Leviton split core CTs Figure 6 right photo The side with the white dot white label or H1 must face the incoming LINE White wire connects to X2 terminal black wire connects to X1 terminal The hash marks on the two pieces of a split core CT must align as shown in figure 7 Figure 6 Leviton solid core and Split Core CTs Figure 7 Hash Marks on Split Core CT Thum...

Страница 19: ...and remove section from CT With power to the conductors turned off place the 3 sided section of the CT around the appropriate conductor while ensuring that white label white dot or H1 faces Line source Reassemble the CT while ensuring that the white hash marks align figure 5 and reinstall thumb nuts Repeat for remaining conductors for two or three phase applications as shown in Figures 8 and 9 6 Fo...

Страница 20: ...ter will go through a power up sequence as described in Section 4 3 It is strongly advised that users of this product read Section 4 below for a complete description of meter functionality and displayed values 2 Several diagnostic tools built into the Series 3300 3500 meter that should be utilized to ensure the meter and CTs are installed correctly and functioning properly a Energy Flow arrow Indi...

Страница 21: ...ackwards or incorrectly connected at the meter or voltage connections at the meter could be cross phased If PF is lower than 0 6 recheck CT placements and orientations and CT and voltage connections at the meter against the appropriate Hookup Diagram shown in Figures 8 and 9 3 The Series 3300 3500 meter indicates reverse energy direction with the Energy Flow arrow and blinking Amperage and phase i...

Страница 22: ... numerical display Low Voltage Low voltage below minimum rated voltage with respect to neutral on a phase is shown by a blinking of the V Parameter Indicator in conjunction with corresponding Phase Indicator For example if low voltage is detected on phase A the V Parameter Indicator and the A phase indicator will blink simultaneously Energy Flow Indicator On all Amps and kW screens the Energy Flow...

Страница 23: ...ge V Phase A 06 Voltage V Phase B 07 Voltage V Phase C 08 Voltage V Line A to B 09 Voltage V Line B to C 10 Voltage V Line A to C 11 Phase A Amps A 12 Phase B Amps A 13 Phase C Amps A 14 Real Power kW Phase A 15 Real Power kW Phase B 16 Real Power kW Phase C 17 Real Power SUM kW A B C 18 Power Factor PF Phase A 19 Power Factor PF Phase B 20 Power Factor PF Phase C 21 Frequency HZ 4 3 Power on Sequ...

Страница 24: ...ndicated by the TEST icon and the words Pass X where X is the test run number Once the startup sequence has completed the display defaults to Screen 01 Real Energy kWh delivered consumed 4 4 Descriptions of Displayed Information Push and release the scroll button to cycle through the display screens Each button press moves to the next screen in the sequence shown in table 4 After 5 minutes of inac...

Страница 25: ...me are saved to EEPROM Modbus Address 0060 Max Demand is displayed in kW Max Demand Reset All series 3300 3500 meters have the capability to reset maximum demand When maximum demand is reset the maximum block demand and all current sub interval demands are set to zero An internal register is also incremented upon demand reset to keep a total of the times this action was taken The register is a sin...

Страница 26: ...right into the RESET ON position within 3 seconds and then release it Date will be displayed and Year will flash 3 Press SCROLL to advance the Year you may also hold it down to advance automatically The Year will cycle from 12 through 99 then back to 12 for 2012 through 2099 4 When the Year is set rotate the KEYSWITCH to ON again and release The Month will now flash 5 Set the Month 1 to 12 6 Repeat ...

Страница 27: ...atteries do not need replaced over the lifetime of the meter If a situation occurs in which the meter will be powered off for a prolonged period battery life will be significantly reduced In the event that the battery needs to be replaced while the meter is still in operation please contact Meter Support WARNING TO AVOID FIRE SHOCK OR DEATH turn off all power supplying equipment before working on o...

Страница 28: ...ore working on or inside the equipment Use a properly rated voltage sensing device to confirm power is off 1 Install meter as outlined in Section 3 2 Modbus cable shall enter at the TOP side of the enclosure as shown in Figure 12 Use shielded twisted pair cable to prevent interference Replace plastic cap 33 with webbed bushing provided 3 Connect Inverting Non Inverting and Signal Common C wires usi...

Страница 29: ...a valid Modbus address The address 255 all switches on is generally reserved and not recommended The table below shows how to set the switches for each address 5 Select Modbus baud rate using the switches 1 and 2 in the lower bank of DIP switches labeled BAUD as shown in Figure 14 Switches 3 8 are reserved for future use and must be set to the OFF position Baud rate options are shown in Table 6 6 ...

Страница 30: ...ion Models 23 8 Before energizing the meter close and secure the enclosure door Table 6 Modbus RTU Baud Rate Switch Settings Figure 14 Modbus RTU Switches Switch Baud Rate 1 2 Off Off Default 9600 On Off 19200 Off On 38400 On On 76800 WEB VERSION ...

Страница 31: ...s using the 3 pin removable terminal block shown in Figure 15 Do not over tighten the terminal screws BACnet output is electrically isolated from input power 4 Select the 8 bit MS TP MAC address using DIP switches A1 A8 Figure 16 Switch A1 corresponds to the low order bit of the address and setting a switch ON selects a bit value of 1 For example set switches 1 and 2 on to select MAC address 3 bin...

Страница 32: ...6 Communications Series 3300 RS485 Communication Models 25 Figure 15 BACnet MS TP Connections Figure 16 BACnet MS TP Switches Inverting Non Inverting Signal Common C Baud Rate MAC Address WEB VERSION ...

Страница 33: ...oltage sensing device to confirm power is off 1 Install meter as outlined in Section 3 2 Ethernet cable CAT 5e shall enter at the TOP side of the enclosure as shown in Figure 12 Replace plastic cap with webbed bushing provided 3 Plug Ethernet connector into the RJ 45 jack as shown in Figure 17 4 Before energizing the meter close and secure the enclosure door Note For detail information refer to Fie...

Страница 34: ...he equipment Use a properly rated voltage sensing device to confirm power is off 1 Install meter as outlined in Section 3 2 Change the JP1 and JP2 jumper settings as shown in Figure 18 3 Use shielded twisted pair cable to prevent interference Connect Inverting Non Inverting and Signal Common C wires using the 6 pin removable terminal block shown in Figure 18 Do not over tighten the terminal screws ...

Страница 35: ...torical data Any other value acts as a filter for the data retrieved from memory The date value specifies the oldest data to be retrieved For instance setting the historical data year to 0x08 will filter out any meter readings prior to 2008 Each part of the historical date is treated as an independent filter Some examples are provided below in Table 8 to further illustrate The historical data access d...

Страница 36: ... extracted first make the 16 bit value into a 32 bit float by appending 0x7FFF and then multiply by the multiplier VAh and kWh are stored as 32 bit floating point numbers and do not need a multiplier As an example of using the multiplier assume the phase A voltage reading is 276 7 V This value is divided by the multiplier 100 to become 2 767 0x40311687 and is stored in the data profile as 0x4031 When ...

Страница 37: ... chronological order the most recent frame is transmitted first and the oldest frame is transmitted last Time of use Second 1 1 Phase A Voltage 2 100 Phase B Voltage 2 100 Phase C Voltage 2 100 Phase A Current 2 100 Phase B Current 2 100 Phase C Current 2 100 Phase A Watts 2 100 Phase B Watts 2 100 Phase C Watts 2 100 Total kWh 4 1 Total kWh 4 1 Total kVA 4 1 Total kVA 4 1 Maximum Demand 2 100 CRC ...

Страница 38: ...provide 10 watt hour and 1 kWh pulse rates Pulses at these terminals are positive with respect to the shared common COM terminal and represent energy delivered from grid Do not over tighten the terminal screws Both pulse outputs are electrically isolated from input power and can be used independent of one another or simultaneously 4 Before energizing the meter close and secure the enclosure door F...

Страница 39: ...wards Recheck wiring and CT orientations against the appropriate Hookup Diagram shown in Figures 8 and 9 10 2 Frequently Asked Questions Q Can I use the Series 3300 3500 meter on a single phase 3 wire system A The meter should not be used in this configuration The per phase energy power voltage and amperage values in this configuration will be correct however the Line to Line voltage will be calcula...

Страница 40: ...rgy management or billing software solutions Various software solutions manage and display data in user friendly formats See Sections 6 and 7 or go to Leviton com for more information Q Why are solid core current transformers color coded Black white red white and blue white A Industry convention for color coding in 3 Phase 208V electrical systems assigns the color black to phase A red to phase B B...

Страница 41: ... Rules and ISED License exempt RSS standard s Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 This device must accept any interference received including interference that may cause undesired operation Changes or modifications not expressly approved by Leviton could void the user s authority to operate the equipment These limits are design...

Страница 42: ...Power Factor N A FLOAT32 R AI 8 0016 0010 40017 2 Phase A Voltage L N V FLOAT32 R AI 9 0018 0012 40019 2 Phase B Voltage L N V FLOAT32 R AI 10 0020 0014 40021 2 Phase C Voltage L N V FLOAT32 R AI 11 0022 0016 40023 2 Phase A Current A FLOAT32 R AI 12 0024 0018 40025 2 Phase B Current A FLOAT32 R AI 13 0026 001A 40027 2 Phase C Current A FLOAT32 R AI 14 0028 001C 40029 2 Phase A Real Power kW FLOAT...

Страница 43: ...Year Month Two UINT8 R AI 32 33 0063 003F 40064 1 Maximum Demand Timestamp Day Hour Day Hour Two UINT8 R AI 34 35 0064 0040 40065 1 Maximum Demand Timestamp Minute Second Min Sec Two UINT8 R AI 36 37 0065 0041 40066 1 Power Loss Timestamp Year Month Year Month Two UINT8 R AI 38 39 0066 0042 40067 1 Power Loss Timestamp Day Hour Day Hour Two UINT8 R AI 40 41 0067 0043 40068 1 Power Loss Timestamp M...

Страница 44: ... and 8 bit integer R AI 58 59 5005 138D 45006 1 Max Demand Sub interval Calc EEPROM Save Interval N A 8 bit enumerated in LSB 5 R W AV 60 0500 01F4 40501 1 Maximum Demand Reset N A Write 0x00AA to initiate reset W AV 53 1 To maintain cohesiveness of date time and day of week it is recommended that the four RTC registers be updated as a group 2 Day of the week 0x01 to 0x07 0x01 Sunday 3 Each 8 bit ...

Страница 45: ...ly every second 0 5 minute sub interval 15 minute Max Demand interval 1 10 min sub interval 30 minutes Max Demand interval Other values return an error History interval LSB defines the interval for saving history data in EEPROM 1 5 minute interval 3 15 minute interval 6 30 minute interval 12 60 minute interval Other values return an error When this register is read the demand calculation interval a...

Страница 46: ...Off On Off On Off Off 41 On Off Off On Off On Off Off 42 Off On Off On Off On Off Off 43 On On Off On Off On Off Off Modbus Address Dip Switch Number 1 2 3 4 5 6 7 8 44 Off Off On On Off On Off Off 45 On Off On On Off On Off Off 46 Off On On On Off On Off Off 47 On On On On Off On Off Off 48 Off Off Off Off On On Off Off 49 On Off Off Off On On Off Off 50 Off On Off Off On On Off Off 51 On On Off ...

Страница 47: ... On On Off 128 Off Off Off Off Off Off Off On 129 On Off Off Off Off Off Off On Modbus Address Dip Switch Number 1 2 3 4 5 6 7 8 130 Off On Off Off Off Off Off On 131 On On Off Off Off Off Off On 132 Off Off On Off Off Off Off On 133 On Off On Off Off Off Off On 134 Off On On Off Off Off Off On 135 On On On Off Off Off Off On 136 Off Off Off On Off Off Off On 137 On Off Off On Off Off Off On 138 O...

Страница 48: ...ff On Off Off On Off On On 211 On On Off Off On Off On On 212 Off Off On Off On Off On On 213 On Off On Off On Off On On Modbus Address Dip Switch Number 1 2 3 4 5 6 7 8 214 Off On On Off On Off On On 215 On On On Off On Off On On 216 Off Off Off On On Off On On 217 On Off Off On On Off On On 218 Off On Off On On Off On On 219 On On Off On On Off On On 220 Off Off On On On Off On On 221 On Off On ...

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