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Compact DIN rail mounted surge protective device with screw terminals for stranded lines.
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BVT version with a width of 3 modules and screw terminals:
BVT RS485 specifically designed for protecting RS485 / RS422 interfaces.
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BVT version with a width of 1.5 modules and RJ connection:
BVT TC1 for protecting telecommunication interfaces.
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BVT version with a width of 1.5 modules and screw terminals:
BVT AVD/ALD: Two protected lines for d.c. power supply systems
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BVT version for protecting active corrosion protection systems.

BLITZDUCTOR VT

Cost-effective protection of stranded signal lines
Interface-specific versions, e.g. RS485 or telecommunication systems
Versions for d.c. power supply systems and cathodic protection

BVT RS485

Surge arrester for a wide range of applications, e.g. for balanced four-wire RS485/422 interfaces or temperature sensors. Direct or indirect shield earthing, connection of a signal ground (SG).

Art.-Nr. 918401

BVT RS485 5

Discontinued

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BVT AVD

Surge arresters with improved voltage protection levels for EMC protection of electronic components with d.c. voltage supply. Ideally suited for Siemens PLCs. Since a unipolar diode is used, the polarity of the operating voltage must be observed.

Art.-Nr. 918422

BVT AVD 24

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BVT ALD

Energy-coordinated, DIN rail mounted combined lightning current and surge arrester for protecting unearthed d.c. power supply systems.

Art.-Nr. 918408

BVT ALD 36

Discontinued

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BVT ALD

Energy-coordinated, DIN rail mounted combined lightning current and surge arrester for protecting unearthed d.c. power supply systems.

Art.-Nr. 918409

BVT ALD 60

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BVT TC

Energy-coordinated and leakage-current-free surge arrester for a/b lines, ISDN U_k0or ADSL with RJ45 plugs and additional screw terminals. Pinning of the RJ45 sockets is compatible with RJ11/12. The parallel screw terminals are more robust than the RJ45 sockets and increase the total nominal discharge current to 10 kA.

Art.-Nr. 918411

BVT TC 1

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BVT KKS ALD

Energy-coordinated combined lightning current and surge arrester for protecting the rectifier in the protective circuit (red colour). Plug-in remote signalling contact (break contact) indicates overload (thermal monitoring of the varistors). Installation into steel-sheet enclosure recommended. A low impulse sparkover voltage is achieved by capacitive control.

Art.-Nr. 918420

BVT KKS ALD 75

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BVT KKS APD

Energy-coordinated combined lightning current and surge arrester for protecting voltage measuring circuits (yellow colour). Plug-in remote signalling contact (break contact) indicates overload (thermal monitoring of the discharge paths). Installation into steel-sheet enclosure recommended. A low impulse sparkover voltage is achieved by capacitive control.

Art.-Nr. 918421

BVT KKS APD 36

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SPD class	Q
Max. continuous operating voltage DC (U_C)	6 V
Nominal current (I_L)	0.5 A
D1 Lightning impulse current (10/350 µs) per line (I_imp)	0.8 kA
C2 Total nominal discharge current (8/20 µs) (I_n)	10 kA
Series impedance per line	1.8 ohms
Cut-off frequency line-line (f_G)	1.7 MHz
Approvals	CSA

SPD class	W
Max. continuous operating voltage DC (U_C)	35 V
Nominal current at 80°C (I_L)	10 A
C2 Total nominal discharge current (8/20 µs) (I_n)	2 kA

SPD class	M
Max. continuous operating voltage DC (U_C)	45 V
Nominal current at 80°C (I_L)	4 A
Nominal current at 45 °C (I_L)	7 A
D1 Lightning impulse current (10/350 µs) per line (I_imp)	2.5 kA
D1 Total lightning impulse current (10/350 µs) (I_imp)	5 kA
C2 Total nominal discharge current (8/20 µs) (I_n)	20 kA
Series impedance per line	22 µH
Approvals	UL

SPD class	M
Max. continuous operating voltage DC (U_C)	65 V
Nominal current at 80°C (I_L)	4 A
Nominal current at 45 °C (I_L)	7 A
Backup fuse if	U_N ≥ 45 V and I_L ≥ 1 A
D1 Lightning impulse current (10/350 µs) per line (I_imp)	2.5 kA
D1 Total lightning impulse current (10/350 µs) (I_imp)	5 kA
C2 Total nominal discharge current (8/20 µs) (I_n)	20 kA
Series impedance per line	22 µH
Approvals	UL

SPD class	R
Max. continuous operating voltage DC (U_C)	170 V
Nominal current (I_L)	0.2 A
D1 Lightning impulse current (10/350 µs) per line (I_imp)	1 kA
C2 Total nominal discharge current (8/20 µs) (I_n)	5 kA
Series impedance per line	4.7 ohms
Cut-off frequency line-line (f_G)	17 MHz

SPD class	M
Max. continuous operating voltage DC (U_C)	75 V
Nominal current (I_L)	12 A
D1 Lightning impulse current (10/350 µs) per line (I_imp)	3.5 kA
D1 Total lightning impulse current (10/350 µs) (I_imp)	7 kA
C2 Total nominal discharge current (8/20 µs) (I_n)	40 kA
Series impedance per line	5 µH
Cut-off frequency line-line (f_G)	1 MHz
Type of remote signalling contact	break contact

SPD class	M
Max. continuous operating voltage DC (U_C)	36.8 V
Nominal current (I_L)	0.05 A
D1 Lightning impulse current (10/350 µs) per line (I_imp)	3.5 kA
D1 Total lightning impulse current (10/350 µs) (I_imp)	7 kA
C2 Total nominal discharge current (8/20 µs) (I_n)	40 kA
Series impedance per line	55 ohms
Type of remote signalling contact	break contact