Part - Leutron GmbH

Power Engineering
Class I+II+III (T1+T2+T3) Combined Arresters
PowerPro BCD, TN-C, TN-S and TT Systems
PowerPro BCD TT2+1
Combined modular multi-pole arrester for 2-phase TT systems.
• Optional remote signalling contact (FM)
L1 L1' L2 L2'
PE
PE'
Patented
Patented
n
n
11 12
11 12
11 12
N N N
Basic circuit diagram
Technical Data PP BCD TT2+1 25/100
Nominal alternating voltage (UN) 230/400 V~
Max. continuous operating alternating voltage (Uc) 255 V~
Insulation resistance (Risol)
>10 GΩ
Protection level at 100% lightn. imp. sparkover voltage (1.2/50 µs) (Uas) ≤ 1.0 kV
Protection level at Iimp (10/350 µs) [L-N] (Up)
≤ 1.0 kV
Response time (tA)
< 50 ns
Lightning impulse current (10/350 µs) [L1+L2+N-PE] (Itotal)
100 kA
Lightning impulse current (10/350 µs) [L-N] Iimp
25 kA
Lightning impulse current (10/350 µs) [N-PE] Iimp
100 kA
Follow-on current extinguishing capability at Uc (50/60 Hz) (Ifi) 4 kA
Nominal discharge current (8/20 µs) (In)
100 kA
Short-circuit withstand capability at max. back-up fuse (Ik)
50 kA
Max. acceptable fuse or back-up fuse F2 (spur wiring)
250 A gL/gG A
Max. acceptable fuse or back-up fuse F1 (V-wiring)
125 A gL/gG A
Operating temperature range (TU) -40 – +80 °C
Max. conductor cross section
50 mm² stranded / 35 mm² fine-stranded
Recommended conductor cross section
25 mm²
Max. connection torque for terminals
4.5 Nm
Enclosure material / colour
polycarbonate (halogen-free) UL94-V0 / yellow
Degree of protection (IEC EN 60529) IP 20
Order Data
Product PP BCD TT2+1 25/100
Ordering part no. 37 39 34
Technical Data and Order Data
PP BCD TT2+1 25/100/FM
FM contact / contact type
break contact
Switching capacity
250 V/2 A
Product
PP BCD TT2+1 25/100/FM
Ordering part no. 37 39 36
30
Leutron GmbH · Humboldtstrasse 30 · 70771 Leinfelden-Echterdingen · Germany · Phone +49 711 94771-0 · www.leutron.de