2 of 3
Surge Protective Devices
SPDN-B Series
Littelfuse.com/SPDN
©2023 Littelfuse, Inc.
Specifications are subject to change without notice.
Revised: 04/25/2023
Specifications
Maximum Surge Current Rating Up to 130 kA per phase
I-nominal Rating 20 kA
UL1449 Short Circuit Current Rating 200 kA
Direct Modes of Protection L-N, L-G, N-G
UL Type Type 1
Audible Alarm Standard
Protective Elements Stacked High Energy MOV
Response Time (L-N / N-PE tA) < 25 ns
Mechanical & Environmental
Operating Temperature Range (Ta) -35 °C to +85 °C (-31 °F to +185 °F)
Operating Frequency 50–60 Hz
Typical Connection 18” #12 AWG (pre-wired pig tails)
Permissible Operating Humidity (RH) 0 % to 95 % non-condensing
Altitude (max) 4,000 m (13,123 ft)
Degree of Protection IP20 (built-in)
Housing Material Polycarbonate NEMA 4X – Lid ultrasonically sealed
Thermal Protection Yes
Operating State/Fault Indication 1 Green LED (for each phase)
Remote Contact Switching Capacity Ac: 240 V/2 A, 125 V/1 A
Product Dimensions H 3.25”; W 5.02”; D 2.93”
Product Weight 1.0 lb
Package Dimensions 4-3/8 x 3-1/2 x 9-1/2”
Package Weight 1.3 lb
Certification & Compliance
cULus UL 1449, 5th Edition; E320116
RoHS RoHS 2 Directive 2011/65/EU; Directive (EU) 2015/863
REACH Regulation (EC) No 1907/2006
Part Numbering System
Nominal System Voltage
SPDN-B VVV-PC
Phase ConfigurationSeries
1P = Single Phase 2S = Split Phase
3Y = 3 Phase WYE 3D = 3 Phase Delta
Ordering Information
ORDERING
NUMBER
NOMINAL SYSTEM
VOLTAGE
PHASE
CONFIGURATION
MAXIMUM CONTINUOUS
AC OPERATING VOLTAGE
(MCOV)
VOLTAGE PROTECTION RATING (VPR)
L-N L-G N-G L-L
SPDN-B120-1P 120 Single Phase 180 700 700 600
SPDN-B120-2S 120/240 Split Phase 180 700 700 600 1200
SPDN-B120-3Y 208/120 3 Phase WYE 150 600 700 500 1000
SPDN-B240-1P 240 Single Phase 350 1200 1000 1000
SPDN-B240-3D 240 3 Phase Delta 275 1000 1200
SPDN-B277-3Y 480/277 3 Phase WYE 350 1200 1000 1000 2000
SPDN-B480-3D 480 3 Phase Delta 550 1800 1800