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Pipe Clamps for Ex Zones 1/21, 2/22

In the past, connections for equipotential bonding and lightning equipotential bonding in Ex zones were often welded or threaded bushing connections. Clamps may only be used if absence of ignition sparks in case of lightning currents is proven. DEHN has provided evidence of absence of ignition sparks under lightning current load for the pipe clamps. The clamp has been tested according to EN 50164-1 title English: Lightning Protection Components (LPC) - Part 1: Requirements for connection components in a potentially explosive atmosphere (clamps and connectors) and the absence of ignition sparks under lightning current load of up to 50 kA (10/350 μs) has been proven. This novel, patented pipe clamp for hazardous areas not only ensures safe electrical contact by means of two contact clips, but also adequate mechanical fixing by an electrically insulated clamping body.

The Ex pipe clamp provides the following connection possibilities:
– Round conductors made of Cu, St/tZn, Al, StSt with Ø8/10 mm or flexible / stranded copper conductors, cross section 16-35 mm², with E-Cu crimping cable lug (DIN 46235)
– Flat copper conductors, min. 20 x 2.5 mm, with bore Ø10.5 mm



Type EX BRS 27

Clamping range of Ø6-27 mm (3/4")

1 Product

Part No. 540821 EX BRS 27

GTIN 4013364123724, Customs tariff No. (EU): 85359000, Gross weight: 284.00 g, PU: 1.00 Stk

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Additional information

EX BRS 27 pipe clamps for hazardous areas
Pipe clamp for explosion-hazard areas
For electrical contacting of pipes in explosion-hazard
area, for implementing of lightning equipotential
bonding according to EN 62305-3 (VDE 0185-
305-3)
For use in explosion-hazard areas Ex zones 1 and 2
(gases, vapours, fogs) and Ex zones 21 and 22
(dusts)
Lightning impulse current (10/350 µs) Cu Ø6-12 mm: 10 kA
Lightning impulse current (10/350 µs) Cu Ø12-27 mm (3/4"): 20 kA
Lightning impulse current (10/350 µs) Cu Ø27 mm (3/4"): 25 kA
Lightning impulse current (10/350 µs) St/tZn Ø17-27 mm (3/4"): 25 kA
Lightning impulse current (10/350 µs) StSt Ø6-12 mm: 10 kA
Lightning impulse current (10/350 µs) StSt Ø12-27 mm (3/4"): 12 kA
Lightning impulse current (10/350 µs) StSt Ø27 mm (3/4"): 25 kA
Clamping range pipe Ø: 6-27 mm (3/4")
Material of clamping body: polyamide
Material of grip head / tensioning strap: StSt
Material of contact piece: brass/gal Sn
Standard: based on EN 62561-1

Brand: DEHN
Type: EX BRS 27
Part No.: 540821
or equivalent.

Certificates

 

Technical data

Lightning impulse current (10/350 µs) Cu Ø6-12 mm (Iimp ) 10 kA
Lightning impulse current (10/350 µs) Cu Ø12-27 mm (3/4") (Iimp ) 20 kA
Lightning impulse current (10/350 µs) Cu Ø27 mm (3/4") (Iimp ) 25 kA
Lightning impulse current (10/350 µs) St/tZn Ø17-27 mm (3/4") (Iimp ) 25 kA
Lightning impulse current (10/350 µs) StSt Ø6-12 mm (Iimp ) 10 kA
Lightning impulse current (10/350 µs) StSt Ø12-27 mm (3/4") (Iimp ) 12 kA
Lightning impulse current (10/350 µs) StSt Ø27 mm (3/4") (Iimp ) 25 kA
Connection M8
Clamping range pipe Ø 6-27 mm (3/4")
Material of clamping body polyamide
Material of grip head / tensioning strap StSt
Material of contact piece brass/gal Sn
Standard based on EN 62561-1

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Type EX BRS 90 / 300 / 500

Type EX BRS 90 (Part No. 540 801) clamping range Ø27 (3/4") to 89 mm (3").
Type EX BRS 300 (Part No. 540 803) clamping range Ø89 (3") to 300 mm.
Type EX BRS 500 (Part No. 540 805) clamping range Ø300 to 500 mm.

3 Products

Part No. 540801 EX BRS 90

GTIN 4013364115460, Customs tariff No. (EU): 85359000, Gross weight: 583.00 g, PU: 1.00 Stk

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Additional information

EX BRS 90 pipe clamps for hazardous areas
Pipe clamp for explosion-hazard areas
For electrical contacting of pipes in explosion-hazard
area, for implementing of lightning equipotential
bonding according to EN 62305-3 (VDE 0185-
305-3)
For use in explosion-hazard areas Ex zones 1 and 2
(gases, vapours, fogs) and Ex zones 21 and 22
(dusts)
Lightning impulse current (10/350 µs) Cu: 50 kA
Lightning impulse current (10/350 µs) St/tZn: 50 kA
Lightning impulse current (10/350 µs) StSt: 25 kA
Class of lightning current carrying capability acc. to EN 62561-1: N
Clamping range pipe Ø: 27-89 mm (3/4-3")
Material of clamping body: polyamide
Material of grip head / tensioning strap: StSt
Material of contact piece: Cu/gal Sn
Standard: EN 62561-1

Brand: DEHN
Type: EX BRS 90
Part No.: 540801
or equivalent.

Certificates

 

Technical data

Lightning impulse current (10/350 µs) Cu (Iimp ) 50 kA
Lightning impulse current (10/350 µs) St/tZn (Iimp ) 50 kA
Lightning impulse current (10/350 µs) StSt (Iimp ) 25 kA
Class of lightning current carrying capability acc. to EN 62561-1 N
Connection M10
Clamping range pipe Ø 27-89 mm (3/4-3")
Material of clamping body polyamide
Material of grip head / tensioning strap StSt
Material of contact piece Cu/gal Sn
Standard EN 62561-1

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Part No. 540803 EX BRS 300

GTIN 4013364115477, Customs tariff No. (EU): 85359000, Gross weight: 645.50 g, PU: 1.00 Stk

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Additional information

EX BRS 300 pipe clamps for hazardous areas
Pipe clamp for explosion-hazard areas
For electrical contacting of pipes in explosion-hazard
area, for implementing of lightning equipotential
bonding according to EN 62305-3 (VDE 0185-
305-3)
For use in explosion-hazard areas Ex zones 1 and 2
(gases, vapours, fogs) and Ex zones 21 and 22
(dusts)
Lightning impulse current (10/350 µs) Cu: 50 kA
Lightning impulse current (10/350 µs) St/tZn: 50 kA
Lightning impulse current (10/350 µs) StSt: 50 kA
Class of lightning current carrying capability acc. to EN 62561-1: N
Clamping range pipe Ø: 89 (3")-300 mm
Material of clamping body: polyamide
Material of grip head / tensioning strap: StSt
Material of contact piece: Cu/gal Sn
Standard: EN 62561-1

Brand: DEHN
Type: EX BRS 300
Part No.: 540803
or equivalent.

Certificates

 

Technical data

Lightning impulse current (10/350 µs) Cu (Iimp ) 50 kA
Lightning impulse current (10/350 µs) St/tZn (Iimp ) 50 kA
Lightning impulse current (10/350 µs) StSt (Iimp ) 50 kA
Class of lightning current carrying capability acc. to EN 62561-1 N
Connection M10
Clamping range pipe Ø 89 (3")-300 mm
Material of clamping body polyamide
Material of grip head / tensioning strap StSt
Material of contact piece Cu/gal Sn
Standard EN 62561-1

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Part No. 540805 EX BRS 500

GTIN 4013364128873, Customs tariff No. (EU): 85359000, Gross weight: 846.00 g, PU: 1.00 Stk

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Additional information

EX BRS 500 pipe clamps for hazardous areas
Pipe clamp for explosion-hazard areas
For electrical contacting of pipes in explosion-hazard
area, for implementing of lightning equipotential
bonding according to EN 62305-3 (VDE 0185-
305-3)
For use in explosion-hazard areas Ex zones 1 and 2
(gases, vapours, fogs) and Ex zones 21 and 22
(dusts)
Lightning impulse current (10/350 µs) St/bare: 50 kA
Lightning impulse current (10/350 µs) StSt: 50 kA
Class of lightning current carrying capability acc. to EN 62561-1: N
Clamping range pipe Ø: 300-500 mm
Material of clamping body: polyamide
Material of grip head / tensioning strap: StSt
Material of contact piece: Cu/gal Sn
Standard: EN 62561-1

Brand: DEHN
Type: EX BRS 500
Part No.: 540805
or equivalent.

Certificates

 

Technical data

Lightning impulse current (10/350 µs) St/bare (Iimp ) 50 kA
Lightning impulse current (10/350 µs) StSt (Iimp ) 50 kA
Class of lightning current carrying capability acc. to EN 62561-1 N
Connection M10
Clamping range pipe Ø 300-500 mm
Material of clamping body polyamide
Material of grip head / tensioning strap StSt
Material of contact piece Cu/gal Sn
Standard EN 62561-1

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Separate clamping body

For use with endless tensioning strap (Part No. 540 901), clamping ranges Ø27 (3/4") to 500 mm.

1 Product

Part No. 540810 SCK EX BRS ASSM10 V2A

GTIN 4013364115484, Customs tariff No. (EU): 85359000, Gross weight: 630.00 g, PU: 1.00 Stk

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Additional information

Pipe clamps for hazardous areas - separate clamping body
Pipe clamp for explosion-hazard areas
For electrical contacting of pipes in explosion-hazard
area, for implementing of lightning equipotential
bonding according to EN 62305-3 (VDE 0185-
305-3)
For use in explosion-hazard areas Ex zones 1 and 2
(gases, vapours, fogs) and Ex zones 21 and 22
(dusts)
Separate clamping body with endless tensioning strap (Part No. 540 901)
Clamping ranges from 3/4' to D=300 mm
Lightning impulse current (10/350 µs) Cu: 50 kA
Lightning impulse current (10/350 µs) St/tZn: 50 kA
Lightning impulse current (10/350 µs) StSt: 25 kA
Class of lightning current carrying capability acc. to EN 62561-1: N
Clamping range pipe Ø: 27 (3/4")-500 mm
Material of clamping body: polyamide
Material of grip head / tensioning strap: StSt
Material of contact piece: Cu/gal Sn
Standard: EN 62561-1

Brand: DEHN
Type: SCK EX BRS ASSM10 V2A
Part No.: 540810
or equivalent.

Certificates

 

Technical data

Lightning impulse current (10/350 µs) Cu (Iimp ) 50 kA
Lightning impulse current (10/350 µs) St/tZn (Iimp ) 50 kA
Lightning impulse current (10/350 µs) StSt (Iimp ) 25 kA
Class of lightning current carrying capability acc. to EN 62561-1 N
Connection M10
Clamping range pipe Ø 27 (3/4")-500 mm
Material of clamping body polyamide
Material of grip head / tensioning strap StSt
Material of contact piece Cu/gal Sn
Standard EN 62561-1

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