Specifications

36 Distribution Products Catalog CA08101001E—October 2010 www.eaton.com
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16.3
Tr a n s f er Switches
Breaker-Based Designs
Standards and Certifications
They are listed under
Underwriters Laboratories UL
1008 Standard for transfer
switch equipment and are
optionally available as suitable
for emergency and standby
systems as defined in NFPA
99 for health care facilities.
●
UL 1008 listed
●
CSA
®
C22.2 No. 178
certified
Catalog Number Selection
Molded Case Transfer Switch
Notes

HFD = 200 and 225A, HLD = 600A, HMD = 800A for 240/120 Vac single-phase, three-wire and 208Y/120 Vac three-phase, four-wire systems only.

The contactor-based transfer switch is currently available in 100, 200, 320, 400 and 600A only. Contact the factory for availability on the 800, 1000 and 1200A switch.

Four-pole 600A will use an NB breaker.

MCB = Molded Case Breaker, MCS = Molded Case Switch.

NEMA 4 and NEMA 4X requires an ATC-600 controller.
AT V 3 KD A 3 0400 X S U
Type
AT = Automatic
BI = Bypass isolation
Orientation
H = Horizontal
V = Vertical
C = Contactor
Logic
1 = ATC-100
3 = ATC-300
I = ATC-600
Switch

A = S1 (MCS) S2 (MCS)
B = S1 (MCB) S2 (MCB)
C = S1 (MCB) S2 (MCS)
D = S1 (MCS) S2 (MCB)
X = Fix mounted contactor
Number of Poles
2 = Two-pole
3 = Three-pole
4 = Four-pole

Enclosure
K = Open
S = NEMA 1
J = NEMA 12
R = NEMA 3R
L = NEMA 4

D = NEMA 4X

Certification
U = UL listed
R = UL recognized
X = No listing
Amperes

0030 = 30A
0070 = 70A
0100 = 100A
0150 = 150A
0200 = 200A
0225 = 225A
0300 = 300A
0320 = 320A
0400 = 400A
0600 = 600A

0800 = 800A
1000 = 1000A
1200 = 1200A
Frame Size (Amperes)
Molded case device

FD = 30–150
KD = 225–300
LD = 400
MD = 600 (three-pole only)
NB = 800–1000

Voltage
A = 120V, 60 Hz
B = 208V, 60 Hz
E = 600V, 60 Hz
G = 220V, 50/60 Hz
H = 380V, 50 Hz
K = 600V, 50 Hz
M = 230V, 50 Hz
N = 401V, 50 Hz
O = 415V, 50 Hz
W = 240V, 60 Hz
X = 480V, 60 Hz
Z = 365V, 50 Hz