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fspDb series

finger-safe power Distribution blocks

achieve a new level of ease and safety
Mersen FSPDBs introduce a new level of safety and ease for installing power distribution
blocks. An IP20 level of finger-safe protection is achieved using FSPDBs, eliminating the need
for special covers or custom Plexiglass sheets to protect your panels. FSPDBs (sizes 1 to
4) simply snap onto 35mm DIN-rail to provide the quickest installation. Modular design also
allows for multi pole applications by use of assembly pins. FSPDBs provide a safe, convenient
way of collecting PV string circuits.
Catalog numbers & Descriptions

Catalog Number Ampere Rating Line Load
Aluminum Copper (Based on NEC Table Wire Range Wire Range Short Circuit
Current
310-16 for 75° C Cu wire Openings
(Connector rated for (Connector rated for only) Per Pole Rating
90° C Cu/AL wire) 75° C Cu wire only) AWG/ mm2 Openings AWG/ kcmil mm2
FSPDB1A FSPDB1C 175 2/0-#14 70-2.5 1 2/0-#14 70-2.5 1 100kA•
FSPDB2A FSPDB2C 175 2/0-#14 70-2.5 1 #2-#14 35-2.5 4 100kA•
350-#6 185-16
FSPDB3A FSPDB3C 310 1 #8-#14 8-2.5 8 100kA•
2/0-#14 70-2.5
FSPDB4A FSPDB4C 335 400-#6 185-16 1 400-#6 185-16 1 100kA•
FSPDB5A FSPDB5C 840 600-#4 300-25 2 600-#4 300-25 2 100kA•

• Contact Mersen Technical Services at [email protected] for fuse type and maximum ampere required.

Multiple Wire Ratings (Same Size & Type Wires Only) H
2/0 Openings #2 Openings Figure 1 K
(2) #4 AWG (2) #10 AWG (2) #6 AWG (2-4) #12 AWG
(2) #6 AWG (2) #12 AWG (2) #8 AWG (2-4) #14 AWG
G
(2) #8 AWG (2) #14 AWG (2-4) #10 AWG
B
F
Dimensions
E J
FSPDB1A FSPDB2A FSPDB3A FSPDB4A FSPDB5A D A
FSPDB1C FSPDB2C FSPDB3C FSPDB4C FSPDB5C C
Dimension
Figure 1 Figure 1 Figure 2 Figure 1 Figure 2 H I
mm in mm in mm in mm in mm in Figure 2 K
A 25.4 1.00 28.4 1.12 46.9 1.85 39 1.54 72 2.84
B 43.3 1.70 57.8 2.28 64.3 2.53 108 4.25 91 3.58
G
C 49.5 1.95 56.0 2.21 64.3 2.53 80 3.15 80 3.15
B
D 45.1 1.78 51.6 2.03 59.8 2.36 75.5 2.97 - -
E 39.4 1.55 39.4 1.55 51.5 2.03 50.1 1.97 50.1 1.97 F
F 72.6 2.86 87.7 3.45 100.8 3.97 145.5 5.73 145 5.71 E J
D
G 59.6 2.35 74.6 2.94 82.4 3.24 120.6 4.75 127.5 5.02 C A
H 5.3 0.21 5.1 0.20 6.5 0.26 7 0.28 3 0.12
I - - - - 31.5 1.24 - - 52 2.04
J 5.3 0.21 6.4 0.25 6.5 0.26 6.5 0.26 6.5 0.26
K 10 0.40 11.7 0.46 8.9 0.35 16 0.63 8.5 0.34
ratings: approvals:
Volts : 1000VDC • UL Recognized Component Guide XCFR2, File E73571
Amps: : 175 to 840A • CSA Certified: Class 6228, File 69363

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