Page 94 - Surge-Protection-E_0.pdf

Surge Arresters – Type 2 for PV Systems

DEHNguard YPV SCI ... – compact
Compact PV arrester with three-step d.c. switching device
• Prewired complete unit for use in photovoltaic systems
• Combined disconnection and short-circuiting device with safe
electrical isolation (patented SCI principle)
• Tried and tested fault-resistant Y circuit of DEHNguard
YPV SCI ... prevents damage to the surge protective device
in case of insulation faults in the generator circuit
• Tested to EN 50539-11
• Suitable for use in all PV systems according to IEC 60364-7-712

For protecting low-voltage consumer installations against surges. For use in accord-
ance with IEC 60364-7-712 (photovoltaic (PV) power systems).

DEHNguard YPV SCI 600 / 1000: Multipole surge arrester with three-step d.c. switching device; for photovoltaic systems up to 600 / 1000 V
DEHNguard YPV SCI ... FM: With remote signalling contact for monitoring device (floating changeover contact)

The DEHNguard YPV SCI ... surge arresters are specifically designed for DEHNguard YPV SCI ... is a special cost-effective and application-opti-
protecting equipment in photovoltaic systems. The patented three-step mised device which is particularly designed for string inverter systems
d.c. switching device (SCI principle) makes these arresters particularly safe with a limited system current up to 1000 A. The design includes the main
so that they fulfil all requirements in modern photovoltaic systems. The device features without compromising safety.
devices are available as 600 V and 1000 V versions and cover the most The green and red indicator flags show the availability of every protective
common voltage levels for string inverter systems. circuit. Apart from this visual indication, DEHNguard YPV SCI ... (FM) ar-
To fulfil the special requirements in photovoltaic systems, a fault-resistant resters also feature a three-pole remote signalling terminal. As the remote
Y circuit consisting of three protective paths of the varistor and a com- signalling contact is designed as a floating changeover contact, the re-
bined disconnection and short-circuiting device are integrated in a single mote signal can, depending on the circuit concept, be used as a make or
device. break contact.
This synergy further reduces the probability of an arrester failure in case
of the operating and fault states which have to be considered in photo- Switching stages
voltaic systems. This ensures that the arrester is protected in case of over-
load. Even in case of voltages up to 1000 V d.c., a switching arc, which is 1. 2. 3.
Tripping of the Active
Safe
likely to occur when a conventional disconnector (for a.c. applications) of Original disconnection arc electrical
a surge protective device is triggered, is extinguished immediately without state device extinction isolation
risk.

Surge Arresters – Type 2 Three-step d.c. switching device (patented SCI principle) SCI
SCI
SCI
SCI

DEHNguard compact YPV SCI ... FM
950 536 DG YPV SCI 600 FM
950 535 DG YPV SCI 1000 FM
Multipole surge arrester with three-step d.c. switching device for use in PV systems,
950 536 4013364154995 04 01 02 09 285 g with remote signalling contact for monitoring device (floating changeover contact).
191,30 €
950 535 4013364154988 04 01 02 09 310 g
195,60 €
950 531 DG YPV SCI 600
950 530 DG YPV SCI 1000
Type DG YPV SCI ... 600 600 FM 1000 1000 FM
Part No. 950 531 950 536 950 530 950 535
950 531 4013364152953 04 01 02 09 275 g
152,00 €
950 530 4013364152960 04 01 02 09 300 g
156,30 €
SPD according to EN 50539-11 type 2 type 2 type 2 type 2
Max. PV voltage (UCPV) 600 V 600 V 1000 V 1000 V
Short-circuit current rating (ISCPV) 1000 A 1000 A 1000 A 1000 A
Nominal discharge current (8/20 µs) [(DC+/DC-) --> PE] (In) 12.5 kA 12.5 kA 12.5 kA 12.5 kA
Max. discharge current (8/20 µs) [(DC+/DC-) --> PE] (Imax) 25 kA 25 kA 25 kA 25 kA
Voltage protection level (UP) ≤ 2.5 kV ≤ 2.5 kV ≤ 4 kV ≤ 4 kV
Approvals KEMA, UL KEMA, UL KEMA, UL KEMA, UL
Type of remote signalling contact –– changeover contact –– changeover contact

90 You will find detailed product information on our website Valid as of August 1, 2020