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Specifications

BT P60 TT ... RM
 
Product Description:
For installation at LPZ 0B-1 or higher, protecting low voltage equipment from surge. Specially designed for TT and TN-S system (“3+1”circuit). Designed according to GB 18802.1-2002/IEC 61643-1:1998-02.
 
Main character:
※     Small volume, high discharge capacity, pluggable
※     Quick response
※     Double thermal disconnection device , provide more reliable protection
※     Multifunctional terminals for connection of conductors and Bus Bar
※     Green window will change when fault occurs, also provide remote alarm terminal at the same time
 
Parameters:
 
 
Type
 
BT P60 TT 275 RM
BT P60 TT 385 RM
Order No.
 
810 133
810 135
Rated voltage                     L-N
(max. Continuous voltage)N-PE             
Uc
275V~
255V~
385V~
255V~
Nominal discharge    L-N
current (8/20)           N-PE
In
20KA
40KA
20KA
40KA
Max. discharge    L-N
current (8/20)      N-PE
Imax
60KA
60KA
60KA
60KA
Voltage protection     
level at 5kA (8/20)   L-N
Up
≤1000V
≤1350V
Voltage protection   L-N
level at I               N-PE
Up
≤1250V
≤1500V
≤1800V
≤1500V
Response time       L-N
N-PE
tA
≤ 25ns
≤ 100ns
≤ 25ns
≤ 100ns
Max. backup fuse
 
125A gL/ Gg
Operating temperature range
θ
-40℃…+80℃
Follow current extinguishing
capability at Uc
 
100Arms
Cross-section area
 
1.5mm2~25mm2 solid/35mm2 flexible
Mounting on
 
35mm DIN rail
Enclosure material
 
Purple thermoplastic, UL94-V0
Dimension
 
4 mods
Test standards
 
YD/T 1235.1-2002; GB 18802.1-2002; IEC 61643-1:1998-02
Certification
 
CE (LVD, EMC)
BT P60 TT… RM Additional information
Type of remote
signalling contact
 
Switching contact
Switching capacity
UN/IN
AC: 250V/0.5A;  DC: 250V/0.1A, 125V/0.2A, 75V/0.5A
Cross-sectional area for
remote signalling contact
 
Max. 1.5mm  solid/flexible