BLITZDUCTOR® XT Ex (i) – Protection Modules

Surge arrester for intrinsically safe measuring circuits and bus systems
  • Maximum discharge capacity for two-pole, three-pole or four-pole interfaces
  • Low voltage protection level, capable of protecting terminal equipment
  • Wide range of approvals: ATEX, IECEx, CSA Hazloc
Arrester consists of a protection module and a base part
  • Easy replacement of protection modules without force
  • All protection components are integrated in the protection module
  • Arrester with integrated LifeCheck for preventive arrester monitoring
Functional and appealing design
  • DIN rail mounted arrester with integrated earthing
  • Minimum space requirements, two pairs over a width of 12 mm
  • Vibration and shock-tested for safe operation

Details

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Further informations


BXT ML4 BD EX 24

Space-saving LifeCheck-equipped surge arrester module for protecting two pairs in intrinsically safe measuring circuits and bus systems, meets FISCO requirements. ATEX. Insulation strength > 500 V line-earth.
If LifeCheck detects thermal or electrical overload, the arrester has to be replaced. This status is indicated contactlessly by DEHNrecord LC / SCM / MCM.

1 Products

Product No. 920381 BXT ML4 BD EX 24

GTIN: 4013364109025, Customs tariff No.: 85363010, Gross weight: 29.90 g, VPE: 1.00 Stk

Predecessor

Images

Additional information

BXT ML4 BD EX 24 surge protection module with LifeCheck
BLITZDUCTOR XT surge arrester module
SPD class: type 2 / P1
tested to EN 61643-21 and
energy-coordinated acc. to IEC 61643-22
For protecting two pairs of intrinsically safe
and galvanically isolated balanced interfaces,
4-20 mA, Profibus PA.
Integrated LifeCheck for contactless arrester testing
Can be plugged into BXT BAS EX base parts
Max. input voltage acc. to EN 60079-11: 30 V
Max. input current acc. to EN 60079-11: 0.5 A
C2 Total nominal discharge current (8/20 µs): 20 kA

Brand: DEHN + SÖHNE
Type: BXT ML4 BD EX 24
Part No.: 920381
or equivalent.

Certificates

Meta-Data

Technical data

SPD class T
Max. continuous operating voltage (d.c.) (Uc ) 33 V
Max. input current acc. to EN 60079-11 (Ii ) 0.5 A
D1 Total lightning impulse current (10/350 µs) (Iimp ) 4 kA
D1 Lightning impulse current (10/350 µs) per line (Iimp ) 1 kA
C2 Total nominal discharge current (8/20 µs) (In ) 20 kA
Cut-off frequency line-line (fG ) 7.7 MHz
Approvals *) CSA, EACEx, ATEX, IECEx, CSA & USA Hazloc, SIL, Inmetro

Product 920381 was added to Notepad.

Product 920381 was added to the cart.


BXT ML2 BD S EX 24

Space-saving LifeCheck-equipped surge arrester module for protecting one pair in intrinsically safe measuring circuits and bus systems, direct or indirect shield earthing. Insulation strength > 500 V line-earth.
If LifeCheck detects thermal or electrical overload, the arrester has to be replaced. This status is indicated contactlessly by DEHNrecord LC / SCM / MCM.

1 Products

Product No. 920280 BXT ML2 BD S EX 24

GTIN: 4013364142138, Customs tariff No.: 85363010, Gross weight: 29.00 g, VPE: 1.00 Stk

Predecessor

Images

Additional information

BXT ML2 BD S EX 24 surge arrester module with LifeCheck
BLITZDUCTOR XT surge arrester module
SPD class: type 2 / P1
tested to EN 61643-21 and
energy-coordinated acc. to IEC 61643-22
For protecting one pair of intrinsically safe
and galvanically isolated balanced interfaces,
4-20 mA, Profibus PA.
Direct or indirect shield earthing
Integrated LifeCheck for contactless arrester testing
Can be plugged into BXT BAS EX base parts
Max. input voltage acc. to EN 60079-11: 30 V
Max. input current acc. to EN 60079-11: 0.5 A
C2 Total nominal discharge current (8/20 µs): 10 kA

Brand: DEHN + SÖHNE
Type: BXT ML2 BD S EX 24
Part No.: 920280
or equivalent.

Certificates

Meta-Data

Technical data

SPD class T
Max. continuous operating voltage (d.c.) (Uc ) 33 V
Max. input current acc. to EN 60079-11 (Ii ) 0.5 A
D1 Total lightning impulse current (10/350 µs) (Iimp ) 4 kA
D1 Lightning impulse current (10/350 µs) per line (Iimp ) 1 kA
C2 Total nominal discharge current (8/20 µs) (In ) 10 kA
Cut-off frequency line-line (fG ) 6 MHz
Approvals *) EACEx, ATEX, IECEx, CSA & USA Hazloc, SIL, Inmetro

Product 920280 was added to Notepad.

Product 920280 was added to the cart.


BXT ML4 BC EX 24

Space-saving LifeCheck-equipped surge arrester module for protecting up to four unearthed single lines sharing a common reference potential in intrinsically safe measuring circuits, meets FISCO requirements. ATEX. Insulation strength > 500 V line-earth.
If LifeCheck detects thermal or electrical overload, the arrester has to be replaced. This status is indicated contactlessly by DEHNrecord LC / SCM / MCM.

1 Products

Product No. 920384 BXT ML4 BC EX 24

GTIN: 4013364109162, Customs tariff No.: 85363010, Gross weight: 28.60 g, VPE: 1.00 Stk

Predecessor

Images

Additional information

BXT ML4 BC EX 24 surge arrester module with LifeCheck
BLITZDUCTOR XT surge arrester module
SPD class: type 2 / P1
tested to EN 61643-21 and
energy-coordinated acc. to IEC 61643-22
For protecting four intrinsically safe single cores
of galvanically isolated interfaces
Temperature measurement
Integrated LifeCheck for contactless arrester testing
Can be plugged into BXT BAS EX base parts
Max. input voltage acc. to EN 60079-11: 30 V
Max. input current acc. to EN 60079-11: 0.5 A
C2 Total nominal discharge current (8/20 µs): 20 kA

Brand: DEHN + SÖHNE
Type: BXT ML4 BC EX 24
Part No.: 920384
or equivalent.

Certificates

Meta-Data

Technical data

SPD class T
Max. continuous operating voltage (d.c.) (Uc ) 33 V
Max. input current acc. to EN 60079-11 (Ii ) 0.5 A
D1 Total lightning impulse current (10/350 µs) (Iimp ) 4 kA
D1 Lightning impulse current (10/350 µs) per line (Iimp ) 1 kA
C2 Total nominal discharge current (8/20 µs) (In ) 20 kA
Cut-off frequency line-line (fG ) 6.4 MHz
Approvals *) CSA, EACEx, ATEX, IECEx, CSA & USA Hazloc, SIL, Inmetro

Product 920384 was added to Notepad.

Product 920384 was added to the cart.


BXT ML2 BD HF EX 6

Space-saving LifeCheck-equipped surge arrester module for protecting one pair in intrinsically safe measuring circuits and RS485 bus systems. Insulation strength > 500 V line-earth.
If LifeCheck detects thermal and electrical overload, the arrester has to be replaced. This status is indicated contactlessly by DEHNrecord LC / SCM / MCM.

1 Products

Product No. 920538 BXT ML2 BD HF EX 6

GTIN: 4013364125285, Customs tariff No.: 85363010, Gross weight: 27.20 g, VPE: 1.00 Stk

Predecessor

Images

Additional information

BXT ML2 BD HF EX 6 surge arrester module with LifeCheck
BLITZDUCTOR XT surge arrester module
SPD class: type 2 / P1
tested to EN 61643-21
and energy-coordinated acc. to IEC 61643-22
for protecting one pair of intrinsically safe circuits
and galvanically isolated RS485 bus systems
Integrated LifeCheck for contactless SPD testing
Can be plugged into BXT BAS EX base parts
Max. input voltage acc. to EN 60079-11: 4.2 V
Max. input current acc. to EN 60079-11: 4.8 A
C2 Total nominal discharge current (8/20 µs): 10 kA

Brand: DEHN + SÖHNE
Type: BXT ML2 BD HF EX 6
Part No.: 920538
or equivalent.

Certificates

Meta-Data

Technical data

SPD class T
Max. continuous operating voltage (d.c.) (Uc ) 6 V
Max. input current acc. to EN 60079-11 (Ii ) 4.8 A
D1 Lightning impulse current (10/350 µs) per line (Iimp ) 1 kA
C2 Total nominal discharge current (8/20 µs) (In ) 10 kA
Cut-off frequency line-line (fG ) 100 MHz
Approvals *) EACEx, ATEX, IECEx, CSA & USA Hazloc, SIL, Inmetro

Product 920538 was added to Notepad.

Product 920538 was added to the cart.


BXT M2 BD S EX 24

Space-saving surge arrester module for protecting one pair of intrinsically safe measuring circuits and bus systems, direct or indirect shield earthing, insulation strength > 500 V line-earth.

1 Products

Product No. 920383 BXT M2 BD S EX 24

GTIN: 4013364126725, Customs tariff No.: 85363010, Gross weight: 27.59 g, VPE: 1.00 Stk

Predecessor

Images

Additional information

BXT M2 BD S EX 24 surge arrester module
BLITZDUCTOR XT surge arrester module
SPD class: type 2 / P1
teested to EN 61643-21
and energy-coordinated acc. to IEC 61643-22
for protecting one pair of intrinsically safe
and galvanically isolated balanced interfaces,
4-20 mA, Profibus PA, direct or indirect shield earthing
Can be plugged into BXT BAS EX base parts
Max. input voltage acc. to EN 60079-11: 30 V
Max. input current acc. to EN 60079-11: 0.5 A
C2 Total nominal discharge current (8/20 µs): 10 kA

Brand: DEHN + SÖHNE
Type: BXT M2 BD S EX 24
Part No.: 920383
or equivalent.

Certificates

Meta-Data

Technical data

SPD class T
Max. continuous operating voltage (d.c.) (Uc ) 36 V
Max. input current acc. to EN 60079-11 (Ii ) 0.5 A
D1 Total lightning impulse current (10/350 µs) (Iimp ) 4 kA
D1 Lightning impulse current (10/350 µs) per line (Iimp ) 1 kA
C2 Total nominal discharge current (8/20 µs) (In ) 10 kA
Cut-off frequency line-line (fG ) 7.7 MHz
Approvals *) ATEX, IECEx, CSA & USA Hazloc, SIL

Product 920383 was added to Notepad.

Product 920383 was added to the cart.


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