Emerson 420 Technical Specifications
x
1
x
2x)
400 Series
420 Surge Protective Device
Submittal Specification
Maximum Continuous Operating Voltage 120VAC 150%, all others 115%
Short Circuit Current Rating (SCCR) 200kAIC
Maximum Surge Current Rating 50kA per Mode/50kA per Phase
Operating Frequency Range 47-63Hz
Location Type Type 1 / Type 2
Nominal Discharge Current (In) 20kA
Status Indication Green/Red LED, Relay Alarm Contacts
Certifications ANSI/UL 1449 Third Edition Type 1 or Type 2; cUL
Standard Enclosure NEMA Type 4X
Weights 1.2 lbs (.54 kg)
Warranty 5 Year Replacement
Configuration
ANSI/UL 1449 Third Edition, Type 1 VPR’s
Source
SA, YA 700V 1200V 1200V 700V
YC 1200V 2500V 2500V 1200V
YD 1500V 3000V 2500V 1500V
DB N/A N/A 1200V N/A
DF N/A N/A 2500V N/A
DG N/A N/A 2500V N/A
General Specifications
(ROHS Compliant)
L-N L-G L-L N-G
Model Number
420SA05BWRJ1S
420YA05BWRJ1S
420YC05BWRJ1S
420YD05BWRJ2S
420DB05EWRJ1S
420DF05EWRJ1S
420DG05EWRJ2S
For applications requiring CUL approval, change the SPD model number from a UL Type 1 (420xxxxxxx
Top View
Surge
Rating
50kA Mode
50kA Phase
(Consult Factory for additional source configuratio ns)
“SA” - 120/240VAC, 120/208VAC, Single Split Phase, 3W+G L-N, N-G Type 1
“YA” - 120/208VAC, 127/220VAC, Three Phase WYE, 4W+G L-N, N-G Type 1
“YC” - 277/480VAC, 254/440VAC, Three Phase WYE, 4W+G L-N, N-G Type 1
“YD” - 346/600VAC, Three Phase WYE, 4W+G L-N, N-G Type 2
“DB” - 240VAC, Three Phase DELTA, 3W+G L-L Type 1
“DF” - 480VAC, Three Phase DELTA, 3W+G L-L Type 1
“DG” - 600VAC, Three Phase DELTA, 3W+G L-L Type 2
Source Configuration
Dimensions:
Modes Of
Protection
x) to a UL Type 2 (420xxxxxxx
Side View
UL Location Type
100 Emerson Parkway
Binghamton, NY 13905
P (607) 721 8840
P (800) 288 6169
F (607) 722 8713
E contactsurge@emerson.com
SS-70104 Rev 1 8-14
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