DH161UWKN EATON CUTLER HAMMER, DH161UWKN Datasheet - Page 4

• Manufacturer Part Number: DH161UWKN
• Description: Solar Disconnect Switch
• Manufacturer: EATON CUTLER HAMMER

Specifications of DH161UWKN

• No. Of Poles: 1
• Current Rating: 30A
• Switch Features: Non-Fusible
• Approval Categories: NEMA 4X
• Voltage Rating: 600VDC

Non-Fusible 600 Vdc
Wiring Diagram
Non-Fused Construction
Fusible 600 Vdc (Class R Fuse Clips—one fuse required per switch)
Wiring Diagram
Fused Construction

B
600 Vdc Solar Switches Features and Benefits
Grounded
Conductor
Junction Block
Grounded
Conductor
Junction Block
UL 98 limits the conductor current sizing to 75°C. 90°C wire may be terminated per Article 110.14(C); however, the maximum current capacity is limited to NEC Table 310.16, 75°C column.
The NEC Rated ISC is calculated by applying two 25% derating factors per NEC 690.8. Thus, a 30A disconnect has an ISC Rating of 19.2A because: 30 / 1.25 / 1.25 = 19.2. The first 25% derating
is due to the fact that PV output circuits can deliver output currents higher than the rated short circuit current for more than 3 hours near solar noon. The second derating—690.9(B)(1) for the circuit
conductors—is because PV system currents are considered to be continuous.
Line
Line

Load
Load
Ampere
Rating
30
60
100
200
400
600
Ampere
Rating
30
60
100
200
400
600
NEMA 3R
DH161URKN
DH162URKN
DH163URKN
DH164URKN
DH165URKN
DH166URKN
NEMA 3R
DH161NRK
DH162NRK
DH163NRK
DH164NRK
DH165NRK
DH166NRK

NEMA 12
DH161UDKN
DH162UDKN
DH163UDKN
DH164UDKN
DH165UDKN
DH166UDKN
NEMA 12
DH161NDK
DH162NDK
DH163NDK
DH164NDK
DH165NDK
DH166NDK
NEMA 4X
DH161UWKN
DH162UWKN
DH163UWKN
DH164UWKN
DH165UWKN
DH166UWKN
NEMA 4X
DH161NWK
DH162NWK
DH163NWK
DH164NWK
DH165NWK
DH166NWK
F
F
B
E
Lug Capacity
Main and Neutral
(Isolated Ground)
#2 – #14 Cu/Al
#2 – #14 Cu/Al
1/0 – #14 Cu/Al
250 kcmil—#6 Cu/Al
(1) 750 kcmil—1/0 or
(2) 300 kcmil—1/0 Cu/Al
(1) 750 kcmil—1/0 and
(1) 600 kcmil—#2 Cu/Al
Lug Capacity
Main and Neutral
(Isolated Ground)
#2 – #14 Cu/Al
#2 – #14 Cu/Al
1/0 – #14 Cu/Al
250 kcmil—#6 Cu/Al
(1) 750 kcmil—1/0 or
(2) 300 kcmil—1/0 Cu/Al
(1) 750 kcmil—1/0 and
(1) 600 kcmil—#2 Cu/Al
B
D
C


Ground Lug
#4 – #14 Cu/Al
#4 – #14 Cu/Al
#4 – #14 Cu/Al
#2 – #14 Cu/Al
250 kcmil—#6 Cu/Al
250 kcmil—#6 Cu/Al
Ground Lug
#4 – #14 Cu/Al
#4 – #14 Cu/Al
#4 – #14 Cu/Al
#2 – #14 Cu/Al
250 kcmil—#6 Cu/Al
250 kcmil—#6 Cu/Al

B
C
D
E
F
EATON CORPORATION
NEC Required Labeling
Factory-Installed
Jumpers
Standard K-Switch
Mechanism
Clear Deadfront Shield
Covering all potentially
live parts
Fused Center Pole
Isolates fuse clips from
potential back feed—
only one fuse required
per switch
Factory Installed
Isolated ground and
equipment ground lug
NEC
Rated
Short
Circuit
Current
(ISC)
19.2A
38.4A
64.0A
128.0A
256.0A
384.0A
Rated
ISC
19.2A
38.4A
64.0A
128.0A
256.0A
384.0A
B
B
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