Home » Books & Guides » Veris H663SM-42 Modbus Split-Core Branch Circuit Monitor - 42 CTs
Veris H663SM-42 Modbus Split-Core Branch Circuit Monitor - 42 CTs




The H663 uses multiple split-core mini-CTs to monitor the individual circuits in a panelboard. Accumulated information can be transmitted across an RS-485 network to a Modbus host and/or viewed on an optional local display (H8936). Data updates occur about once per second to provide timely maintenance information. As a circuit approaches capacity, warning and alarm levels trigger to warn of the need for intervention to prevent unexpected breaker trips and costly downtime.
APPLICATIONS
- Retrofit panel boards
- Load based cost allocation
- Overload protection
- Load management
- Load balancing
- Lighting circuit
The Bad:
The Bottom Line:
Full Review
- The H663 reports current consumed on each circuit in the panel board...one product covers multiple points
- Provides Modbus registers for current limit warnings and alarms...prevents breaker trips
- Integrates with available network display for local indication
- Up to 63 H663s can be networked on one Modbus RS-485 drop...simplified wiring
- Split-core CTs are perfect for quick installation on critical load applications that can’t be powered down

Technical Specifications :
|
General: Operating Temp. Range |
0 to 60°C
(<95%RH, non-condensing) |
|
Storage Temp. Range |
-40°C to
70°C |
|
Power Source |
120VAC (+10/-25%) line-to-neutral,
50/60Hz. |
|
Measured
Current Inputs: Number of Channels |
|
|
Frequency |
50/60Hz. |
|
Sample Frequency |
1280Hz. |
|
Update Rate |
1.2 sec |
|
Accuracy |
±5% of reading from 5A to 50A |
|
Overload Capability |
≤50A 10kAIC breaker curve |
|
Connection to Conductor |
Solid-core toroid |
|
Network
Communications: Type |
|
|
Connection |
DIP-switch
selectable 2-wire or 4-wire |
|
Address |
DIP-switch
selectable address 1 to 247 |
|
Baud Rate |
DIP-switch
selectable 2400, 4800, 9600, 19200 |
|
Parity |
DIP-switch selectable NONE, ODD,
EVEN |
|
Communication Format |
8
data-bits, 1 start-bit, 1 stop-bit |
|
Termination |
5-position
pluggable connector; ( |
|
Defaults: Warning Register |
60% of
current sensor rating (confi gurable) |
|
Alarm Register |
70% of
current sensor rating (confi gurable) |
|
Current Setting |
20 Amp |
|
Dimensions Cir. Board Only: |
|
|
Split-Core CTs (6 ft. leads) |
1.04" (27mm) x 1.04"
(27mm) x 1.58" (41mm) |
|
Mainboard…(L x W) |
7.25" (185mm) x 5.75"
(196mm |
|
Mainboard
Bracket…(LxWxH) |
11.37" (289mm) x 5.75"
(146mm) x 1.12" (29mm) |



