CCS WattNode WNA-1P-240-FT10, User Manual

Page: 35 / 40

Specifications 35
6 Specifications
6.1 Models
Model VAC phase to
neutral
VAC phase to
phase
Phases Wires Neutral
Present
WNA-1P-240-xxx 120 240 1 2 or 3 Yes
WNA-3Y-208-xxx 120 208,240 3 4 Yes
WNA-3Y-400-xxx 240 400 3 4 Yes
WNA-3Y-480-xxx 277 480 3 4 Yes
WNA-3Y-600-xxx 347 600 3 4 Yes
WNA-3D-208-xxx N/A 208 3 3 No
WNA-3D-480-xxx N/A 480 3 3 No
WNA-4WD-240-xxx 120/208 240 3 4 Yes
Table 6.1: WattNode Models
The transceiver suffixes (-xxx) are -TP78 or -FT10.
6.2 Current Transformers
The WattNode uses CTs with integral burden resistors generating 0.333 VAC at rated current. The
maximum allowable current is dependent only on the physical size of the CT, not the rated current.
Exceeding the maximum allowable current may damage CTs.
The accuracy of the toroidal CTs is rated as 1% from 10% to 130% of rated current. The following toroidal
(solid core) CTs are available.
Model I.D. Rated Amps Max. Amps
CTT-0300-yyy 0.30" 5, 15, 20, 30 40
CTT-0500-yyy 0.50" 15, 20, 30, 50, 60 80
CTT-0750-yyy 0.75" 30, 50, 70, 100 130
CTT-1000-yyy 1.00" 50, 70, 100, 150, 200 260
CTT-1250-yyy 1.25" 70, 100, 150, 200, 250, 300, 400 520
Table 6.2: Toroidal CTs
The accuracy of the split-core CTs is rated as 1% from 10% to 130% of rated current. The following split-
core (opening) CTs are available.
Model I.D. Rated Amps Max. Amps
CTS-0750-yyy 0.75" 5, 15, 20, 30, 50, 70, 100, 150 200
CTS-1250-yyy 1.25" 70, 100, 150, 200, 250, 300, 400, 600 800
CTS-2000-yyy 2.00" 600, 800, 1000, 1200, 1500 2000
Table 6.3: Split-core CTs
The CT suffix (-yyy) is the rated current.