Type 3 surge protection device - BLT-SKT-230-A

Type 3 surge protection for permanent installation on ground contact sockets. Circuit with thermal monitoring, acoustic fault warning.

Product Details

IEC power supply system TN-S
Type Socket mounting module
Product type Device protection
Number of positions 2
Surge protection fault message Acoustic
Insulation characteristics
Overvoltage category III
Pollution degree 2
IEC test classification III
EN type T3
Number of ports One

Connection method Single wires

Dimensional drawing
Width 53 mm
Height 53 mm
Depth 32 mm

Color light grey RAL 7035
Flammability rating according to UL 94 V-0
CTI value of material 600
Insulating material PA 6.6-FR
Material group I
Housing material PA 6.6-FR

Mode of protection L-N
Direction of action 1L-N & N-PE
Nominal voltage UN 230 V AC (TN-S)
230 V AC (TT - only in use with RCD)
Nominal frequency fN 50 Hz (60 Hz)
Maximum continuous voltage UC 255 V AC
Residual current IPE ≤ 5 µA
Reference test voltage UREF 255 V AC
Maximum discharge current Imax (8/20) µs 4 kA
Combination wave UOC 6 kV
Voltage protection level Up ≤ 1.5 kV
TOV behavior at UT (L-N) 440 V AC (5 s / withstand mode)
440 V AC (120 min / withstand mode)
TOV behavior at UT (L-PE) 440 V AC (5 s / withstand mode)
440 V AC (120 min / withstand mode)
1455 V AC (200 ms / safe failure mode)
TOV behavior at UT (N-PE) 1200 V AC (200 ms / safe failure mode)
Response time tA (L-N) ≤ 25 ns
Response time tA (L-PE) ≤ 100 ns
Response time tA (N-PE) ≤ 100 ns
Max. required back-up fuse 16 A (MCB B)
Short-circuit current rating ISCCR 1 kA AC

Ambient conditions
Degree of protection IP20 (Installed)
Ambient temperature (operation) -20 °C ... 70 °C
Ambient temperature (storage/transport) -20 °C ... 70 °C
Altitude ≤ 2000 m (amsl (above mean sea level))
Permissible humidity (operation) 5 % ... 95 %

Standards/specifications IEC 61643-11
EN 61643-11
Standards/specifications EN 61643-11

Mounting type in device sockets of insulating material with standard ground contact sockets

Item number 1038842
Packing unit 1 pc
Minimum order quantity 1 pc
Product Key CL1442
Catalog Page Page 86 (C-4-2019)
GTIN 4055626592442
Weight per Piece (including packing) 41.38 g
Weight per Piece (excluding packing) 41 g
Country of origin DE


ECLASS-9.0 27130806
ECLASS-10.0.1 27130806
ECLASS-11.0 27130806


ETIM 8.0 EC000942


UNSPSC 21.0 39121600

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Your advantages

Optimal additional protection of the building installation for longer service life and increased availability of the end devices
Installs easily in deep and flat device sockets, thanks to normative device shape
Cannot be stolen, since it is part of the fixed installation
Concealed surge protection, thanks to flush-socket installation
Can be installed directly using pre-assembled and color-coded cables