Home
Cart

Cart

Get an offer

Full name*

E-Mail*

telephone*

Company*

street*

place*

zip code*

country*

additional information

I agree that my details and data are collected and stored electronically in order to answer my enquiry.

Your cart

26 article(s) in your cart
pos.	image	product	Configure	Actions
1		ZS-1
2		T209-0.F
3		T-200.F Ex
4		QFS-40
5		T205-0.F
6		T206
7		QFS-55
8		Lub-VDT USB-Kit
9		ER-107
10		ZMF-200e-IR
11		T205 VA
12		T-20X
13		T-200.L Ex
14		Ex-QFS-3x
15		NSP-X-E
16		TK-303
17		TK-101 EX
18		ER-Serie
19		HD-110 \| HD-112 \| HD-114
20		NP-255
21		TK-307-0
22		EF2 24...230 V
23		ZDS-H
24		EE-2XF
25		QFS-12
26		ZCS-5000

ZS-1 configure

1 Signalausgang

2 Druckmessbereich

3 Prozessanschluss

Amount

additional infomation

T-200.F Ex configure

1 Führungsrohr

2 Sicherheitsfunktion

3 Rohrmaterial

4 Anschlussgewinde

5 Ausführung

6 Schaltkontakte

7 Schwimmermaterial

8 Anschlussdose

9 Länge

10 EX

Amount

additional infomation

QFS-40 configure

1 Anschluss

2 Gehäusematerial

3 Kabelmaterial

4 Kabellänge

Amount

additional infomation

QFS-55 configure

1 Ausführung

2 Kontakt

3 Schaltkontakt

4 Kabelmaterial

5 Kabellänge

6 Ex-Option

Amount

additional infomation

ZMF-200e-IR configure

1 Typ

2 Temperaturbereich

3 Messmethode

4 Signalausgang

5 Messbereich

6 Ex-Zulassung

Amount

additional infomation

T-200.L Ex configure

1 Länge

2 Anschluss

3 Anschlussgewinde

4 Schwimmertyp

5 Ex

Amount

additional infomation

Ex-QFS-3x configure

1 Schwimmertyp

2 Kontakt

3 Schaltkontakt

4 Kabelmaterial

5 Kabellänge

6 Beschwerungsgewicht

Amount

additional infomation

NSP-X-E configure

1 Messbereiche

2 Gabeloberfläche

Amount

additional infomation

TK-303 configure

1 Gewinde

2 Schwimmerausführung

3 Anschluss

4 Rohrlänge

5 Auflösung

6 Explosionsschutz

7 Zubehör

Amount

additional infomation

TK-101 EX configure

1 ATEX

Amount

additional infomation

HD-110 | HD-112 | HD-114 configure

1 Gehäuse

2 Anschlussgewinde

3 Messbereich

4 Ausgangssignal

5 Steckverbindung

6 Abdichtung

7 Sondermesszelle

Amount

additional infomation

NP-255 configure

1 Ausführung

2 Staurohr-Anzahl

3 Anschlussgewinde

4 Druckschalter

5 Kontakt

6 Längen

Amount

additional infomation

TK-307-0 configure

1 Anschluss

2 Rohrlänge

3 Auflösung

4 Explosionsschutz

5 Zubehör

Amount

additional infomation

EF2 24...230 V configure

1 Verschraubungsmaterial

2 Stabmaterial

3 Stabdurchmesser

4 Stabbeschichtung

5 Elektronikteil

6 Stablänge

Amount

additional infomation

EE-2XF configure

1 Typ

2 Elektrodenanzahl

3 Anschlussgewinde

4 Stabmaterial

5 Stabdurchmesser

6 Beschichtung

7 Kabelbruchwiderstand

8 Sicherheitsfunktion

9 Stablänge

Amount

additional infomation

QFS-12 configure

1 Kontakt

2 Schwimmermaterial

3 Kabelmaterial

4 Kabellänge

Amount

additional infomation

ZS-1

Differential pressure sensor for low pressure

Compact and robust differential pressure transmitter for measurement on air and other non-aggressive media

Properties

Pressure type : Differenzdruck
Housing : Aluminium
medium : Luft und nicht aggressive Gase

Measurement parameters

response time : < 2,5 s
Hysteresis : 0,1 %
Overload capacity : 4* fach bis 500 mbar, darüber 2* fach
Signal output selection : 0...10 V | 4...20 mA, 2-Leiter

Operating conditions

Operating voltage : 24 VDC/AC ±10 % (0...10 V) | 15...30 VDC (4...20 mA)
Operating temperature : -20...+50 °C

Connections

Electrical connection : Schraubklemme im Gehäuse
Process connection : Schlauchanschluss 4 mm oder 6 mm
Cable gland : PG 7

Pressure measuring range

0...0,25mbar :
0...0,5mbar :
0...1mbar :
0...2,5mbar :

T209-0.F

Magnetic immersion probe overfill protection for Ex zone 0 (Cat. 1)

The magnetic immersion probes T20... are used to detect fill level limit values in containers for liquid media, where an explosive atmosphere of zone 0 (cat. 1) is present in the gas space above the liquid and Ex zone 1 (cat. 2) is present outside the container, in the area of the junction box.

Properties

connection : Polyesterdose, Aluminiumdose
Protection class : IP 65 Dose
Float type : Kugel Edelstahl 105 mm Ø
Sliding tube length : max. 6000 mm
Operating temperature : max. 135°C
Operating pressure : max. 20 bar
media density : 0,54 g/cm³
F-Contact : 1 / 12 kΩ
Number of additional contacts : 6x Wechsler, 9x Schließer, 6x Öffner
Switching current : 1A, 2A ( nur mit Schirmung)
Switching capacity : Wechsler: 60 W/VA, Schließer: 100 W/VA Öffner: 60 W/VA
min. contact distance with several floats : 125 mm

T-200.F Ex

Overfill protection for containers with Ex approval

Level sensors type T-20_.F... are approved by the DIBt (German Institute for Structural Engineering) as liquid level limit switches for the overcharge protection of containers for storing water-dangerous liquids.

Connection

Box : Ex-Polyester
Box : Ex-Aluminium

Properties

Protection class EN60529 : IP 65
connection thread : G2"
Union nut : G 2¾"
Guide tube length : max. 6 m
Operating temperature : -20…+60 °C
Operating pressure : max. 6 bar je nach Ausführung
media density : ρ ≥ 0,72 g/cm³ (je nach Schwimmertyp)
Switching hysteresis : 2 mm
Switching point tolerance : max. 2 mm

Resistance value

Operational readiness : ca. 1 kΩ
overfill alarm : ca. 12 kΩ
Switching time : ca. 20 ms
Ex-protection : siehe Baumusterprüfbescheinigung
CE marking : siehe Konformitätserklärung

QFS-40

Built-in float level switch

The QFS-40 built-in float switch is designed for low-cost monitoring of liquids in containers.

Technical Data

Switch housing : PPH| PVDF
Seal : NBR (PPH) | FPM (PVDF)
Operating temperature : PPH max. 80 °C| PVDF max. 100 °C
Operating pressure : max. 10 bar
Mounting position : horizontal (±30° von der Horizontalen)
Contact assembly : Schliesser-, Öffnerkontakt (je nach Einbau)
Electrical connection : PVC-Kabel
Switching capacity : max. 230 V AC/DC| max. 40 VA, max. 2 A
Contact resistance : max. 80 mW
Min. electric strength : 400 V DC / 1 s
Inductive/capacitive loads : Unbedingt Kontaktschutz vorsehen
fluid density : PPH > 0,6 kg/dm³ | PVDF > 0,95 kg/dm³
Protection class : IP 68

Connections

external installation : G ½"
internal installation : M16

T205-0.F

Ex area zone 0 (category 1)

Properties

Protection class EN60529 cable : IP 68
connection cable : max. 10 Meter PUR
Sliding tube length : Max. 6000 mm
Operating temperature : max. 120 °C
F-Contact : 1 / 12 kΩ

Float

Stainless steel ball 44 mm Ø : max. 15 bar | 0,60 g/cm³
Stainless steel cylinder 27 mm Ø : max. 10 bar | 0,78 g/cm³

T206

Magnetic immersion probes made of PP or stainless steel (1.4571)

Magnetic immersion probes for use with highly aggressive liquid media for detecting level limits in containers

Properties

Number of contacts : 1 x Schließer/Öffner durch 180°-Drehung des Schwimmers
Switching current : 1 A
Switching capacity : 50 W/VA

T206PP

Float type : max. 2 x Typ 12 (13)
max. 2x Type 12(13) : LiYY-Kabel 0,14 mm² | PVC-Litze 0,24 mm²
Operating temperature : 60 °C
Operating pressure : drucklos
media density : Typ 12: 0,93 g/cm³ | Typ 13: 0,68 g/cm³
min. contact distance with several floats : 50 mm

T206VA

Protection class EN60529 : IP 65
Float type : max. 2 x Typ 08
connection cable : PTFE-Litze 0,24 mm²
Sliding tube length : max. 1000 mm
Operating temperature : max. 100 °C
Operating pressure : max. 10 bar
media density : Typ 08: 0,78 g/cm³
min. contact distance with several floats : 42 mm

QFS-55

Teflon float switch in rod design

The float switch combination is built with float switches of the QFS-50 and QFS-60 series. This makes it possible to control a level in a simple way.

Technical Data

Material : PTFE (Teflon)
connection cable : Silikon, Teflon
Material rod : VA-Rohr, PTFE beschichtet
Operating temperature : max. +150 °C
media density : ρ ≥ 0,75 g/cm³
Switching system : Reed-Schalter
Contact : Wechsler, NO, NC
Inductive/capacitive loads : Unbedingt Kontaktschutz vorsehen
Ex-protection optional : Elektrische Daten siehe EG-Prüfbescheinigung IBExU10ATEX 1089

Reed contact

Switching current : 1 mA ... 1 A
Switching voltage : 24 ... 250 V AC/DC
Switching capacity : Max. 1A, 60 VA / 60 W
Switching hysteresis : ca. 100 mm
Switching angle : ca. +20°...–20°

Namur circuit (1kΩ/12kQ)

Switching current / switching voltage : nur zum Anschluss an KR-163... oder andere „Namur”-Relais
Switching hysteresis : ca. 100 mm
Switching angle : ca. +20°...–20°

Lub-VDT USB-Kit

Software and USB kit for configuration & evaluation

Properties

details : folgen

ER-107

Electrode Relays with general approval for constructions Z-65.13-405, Z-65.40-191

Electrode relays for conductive level detection with approved design as part of an overfill cut-out device (Z-65.13-405) / leakage protection (Z-65.40-191)

Properties

details : folgen

ZMF-200e-IR

Robust gas sensor for industrial applications with extended operating temperature range and wide-ranging approvals

The ZMF-20X series includes sensors & transmitters for measuring gas concentrations of various gases such as CO2, methane, propane and SF-6. This makes the sensors suitable for many applications. The ZMF-20X gas sensors are designed to be extremely rugged & suitable for use in harsh environments.

Properties

Operating conditions : -40 °C…+60 °C
Storage conditions : -40 °C…+85 °C
RelativeHumidity : 0…95 % nicht kondensierend
Measurement method : NDIR (dual beam technology)
Signal output : 4..20mA
Power supply : 12…24 V DC
Housing : Edelstahl
Standard cable length : 1,5 m
Certification : SIL2, ATEX (optional)
pressure conditions : 800...1200 mbar
screw thread : M46x1,5

Measuring ranges

in ppm : in vol%
0…2.000ppm : 0…0,2 % vol
0…5.000ppm : 0…0,5 % vol
0…10.000ppm : 0…1 % vol
0…20.000ppm : 0…2 % vol
0…50.000ppm : 0…5 % vol
0…200.000ppm : 0…20 % vol
0…1.000.000ppm : 0…100 % vol

Measuring Accuracy

below 25% of the range : ±1 % FS
below 50% of the range : 2 % FS
above 50% of the range : ±5 % FS

T205 VA

Stainless steel magnetic immersion probes

Magnetic immersion probes for use with highly aggressive liquid media for detecting level limits in containers

Properties

Protection class : IP 65
Number of floats : max. 2x Typ 08
connection cable : Silikon Litze
Operating temperature : max. 100 °C
Operating pressure : max. 10 bar (Zylinder)
Number of contacts : max. 2 x Schließer/ Öffner wahlweise durch 180°-Drehung des Schwimmers bei 2 Schwimmern
Switching current : 1 A
Switching voltage : 250 V AC
Switching capacity : 50 W/VA
Sliding tube length : max. 1000 mm
media density : Typ 08: 0,78 g/cm³
float : Zylinder Edelstahl 1.4571 27 mm Ø
min. contact distance with several floats : 50 mm

T-20X

Immersible Magnetic Probe made of PVC, PE, PPH, PTFE or stainless steel (1.4571)

Magnetic immersion probes for use with highly aggressive liquid media for detecting level limits in containers

Properties

connection : Polyesterdose | Aluminiumdose
Protection class EN60529 : IP 65 Anschlussdose
Connector plug : 3- und 6-fach
connection thread : G 1/8" | G 3/8" | G 1/4" | G 1/2" | G 1" | G1 1/4" | G1 1/2" | G2" | G3"
connection cable : LiYY max. 80 °C | PTFE-Litze, 0,24 mm² | Silikon max. 150 °C
Sliding tube length : max. 1000 mm (Rohr Ø 8 mm) | 6000 mm
Operating pressure : max. 20 bar
Viscosity : < 100 cp
Protection class EN60529 : IP 68 Führungsrohr
Switching voltage : max. 250 V
Switching hysteresis : ca. 2...5 mm
Holding range : ca. 12 mm
Contact function : monostabil | bistabil

Operating temperature

ltdata. : max. +60...+150 °C
ltdata. : min. –20... –10 °C
ltdata. : höhere oder niedrigere Temperaturen auf Anfrage

Switching capacity

Changeover contact : 60 W/VA
normally open : 100 W/VA
Normally closed contact : 60 W/VA

Switching current

Changeover contact : max. 1 A
NO/NC contact : max. 2 A

Contacts

Changeover contact : 8
normally open : 10
Normally closed contact : 7

T-200.L Ex

Leakage probes with general building authority approval for hazardous areas

The leakage probes T-200.L are approved by the "DIBt" on the basis of the "WasBauPVO" for the detection of leaking water-polluting liquids. The T-200.L Ex may be used as leakage probes in hazardous areas, zone 1 (category 2).

Connection

Box : Ex-Polyesterdose (PO)

Properties

Protection class : IP 65
Cable entry : PVDF-Verschraubung, PVC-Dichtung
Material Float : PE
Material leakage probe base : PE
Cable : TPK (PVC Basis)
Operating temperature : atmosphärisch
Operating pressure : atmosphärisch
media density : mit Schwimmer PE 52 ρ ≥ 1,05 g/cm³
Switching hysteresis : typ. 2 mm
Switching point tolerance : max. 2 mm

Resistance value

Operational readiness : ca. 1 kΩ
Leakage detection : ca. 12 kΩ
Switching time : ca. 20 ms

Ex-QFS-3x

Mercury-free float switches with Ex approval

These float switches have a mercury-free switching system consisting of a microswitch and a ball which actuates this switch.

Technical Data

Protection class EN60529 : IP 68
Material Float : PP
Cable : TPK (PVC Basis), PVC Basis verstärkt, Polyurethan, Silikon, Teflon, Ethylen-Acrylat-Kautschuk
Conductor cross-section : 3x 0,75 mm², Polyurethan 3x 0,5 mm²
Operating temperature TPK(V) : AEM Kabel max.+ 60 °C
Operating temperature PUR cable : max.+ 70 °C
Operating temperature SIL, FEP cable : max.+ 85 °C
Operating pressure : max. 1 bar Zylinder| max. 2 bar Kugel
Switching system : Mikroschalter
Contact type : Wechsler, NO, NC
Electrical connection data, Ex-protection : siehe EG-Prüfbescheinigung TüV 09 ATEX 555342
Inductive/capacitive loads : Unbedingt Kontaktschutz vorsehen
CE marking : siehe Konformitätserklärung
Weight : ca. 200 g

Media density Ex-QFS-30

TPK(V) cable : ρρ 0,85 g/cm³
PUR cable : ρρ 0,95 g/cm³
SIL cable : ρρ 0,90 g/cm³
FEP cable : ρρ 0,95 g/cm³
AEM Cable : ρρ 0,90 g/cm³

Media density Ex-QFS-31

Sphere : ρρ 0,60 g/cm

Mounting position

Ex-QFS-30 : waagerecht mit G1” Verschraubung, senkrecht mit Beschwerungsgewicht (Ex)
Ex-QFS-31 : waagerecht mit Flansch ab DN 100 (PP)

NSP-X-E

Vibrating Limit Switch

The vibrating limit switch is a level limit switch for all kinds of fluids and is used in tanks, containers and pipelines.

Properties

Protection class EN60529 : IP 65/IP 67
Operating pressure : ≤ 40 bar
media density : ρ ≥ 0,7 g/cm³
Viscosity : max. 10000 mm²s
Rated current : < 15 mA
Protection class : III
Output : PNP
power : kurzschlussfest, überlastsicher
Display : LED (grün, rot)
Switching delay (cover) : ca. 0,5 s
Switching delay (release) : ca. 1 s

NSP-1-E

connection thread : G 1”
Operating temperature : –40...+150 °C
Storage temperature : –40...+85 °C
nominal voltage : 10...55 V DC (verpolsicher)
Current output : ≤ 350 mA

NSP-2-E

connection thread : G ½”
Operating temperature : –40...+100 °C
Storage temperature : –20...+70 °C
nominal voltage : 10...35 V DC (verpolsicher)
Current output : ≤ 250 mA

TK-303

Level transmitter for Ex-Zone 0 (Cat.1)

T30... continuous magnetic immersible probes are used for quasi-acquisition of the filling level in containers with liquid media.

Technical Data

connection : Dose
Protection class : IP 65
Float type : 03, 04, 09
Sliding tube length : max. 6000 mm
Operating temperature : max. 135 °C
Operating pressure : max. 20 bar (Kugel) max. 15 bar (Zylinder)
Resolution : 7,5 mm | 10 mm
Accessories : R/I-Wandler TK-101

MaterialDensity

Type 03 : 0,75 g/cm³
Type 04 : 0,65 g/cm³
Type 09 : 0,76 g/cm³

TK-101 EX

Measuring transducer (R/I-transducer)

The measuring transducer Tk101 and Tk101Ex are built directly into the connection boxes of our Liquid Level Measuring Instruments of type TK-30.

Properties

Operating temperature : -20...+60 °C
Storage temperature : -40...+80 °C
Ex-protection : siehe Zertifikat
CE marking : siehe Konformitätserklärung

Input

Resistance range in three-wire circuit : 4...10 kΩ
Measuring current : 0,8 mA @ RE = 4 kΩ
Measuring current : 0,33 mA bei RE = 10 kΩ
Measuring voltage : 3,3 V

Supply/Output

2-wire : 4...20 mA
Voltage(Um) : 11...28 V DC
Burden / load : 0...800 Ω |RBürde max = [(Um - Um min) / 0,02] Ω
Output signal in case of error : max. 24 mA

Fault influences

Max. Total error : ± 1 %
Temperature influence : -0,015 % / °C
Supply voltage influence : 0,025 % / V

Setting range

Full deflection : 60...105 %
Zero point adjustment : 0...25 %

ER-Serie

Electrode Relays

Electrode relays for conductive level detection for all areas in which conductive, liquid media are to be detected, controlled or monitored

Properties

details : folgen

HD-110 | HD-112 | HD-114

Hydrostatic screw-in probes (4...20mA | 0.8...10mWS)

Continuous and precise level measurement in unpressurised, open basins and tanks as well as underground applications such as shafts, wells and boreholes.

Properties

Protection class EN60529 : IP 65
Operating temperature : -10...70 °C
Storage temperature : -25...70 °C
Power supply : 15...30 V DC
power : max. 25 mA
Output : 2-Leiter-Technik | 4...20 mA
Measuring range : 0,8...10 mWs (Standard)
Overpressure : ca. 20 %
Deviation from characteristic curve : Nichtlinearität,
Insulation resistance : > 100 kΩ
Short-circuit resistance : permanent
Reverse polarity protection : keine Schädigung o. Funktion bei vertauschten Anschlüssen

Materials

Housing : Edelstahl 1.4571, PVC, PVDF
Measuring cell : Edelstahl 1.4404, Keramik AI2o3 96%, Keramik AI2o3 99,9%
Seals : FKM (Viton ®), EPDM, FFKM (Kalrez ®)
connection thread : G ¾“ | G 1 ½“
Plug : Steckverbindung DIN 43650

NP-255

Level Switch - multiple 2...4 - pneumatic

very reliable and simple sensors for scanning liquids, in particular when used for overflow protection. liquids can be aggressive, sticky or highly contaminated

Properties

Protection class EN60529 : IP 54
connection thread : ab G2”
Union nut : ab G2¾”
Container connection flange : ab DN 25
Hose Ø : 16 mm
Operating temperature : +60 °C
medium temperatur : max. +60 °C
Contact : Wechsler
Switching capacity : 500 VA
Switch-on point (Viton membrane) : 150 mm WS ±30 mm
Switch-off point (MembraneViton) : 90 mm WS ±30 mm

Material

Pitot tube / Hose : PVC
Screw fitting/grommet : PVC
flange : PVC
Connection head : PVC

Switching voltage

silver : max. 250 V AC
Gold : max. 24 V AC

Switching current

silver : max. 6 A
Gold : max. 100 mA

TK-307-0

Stainless steel level sensor for Ex-Zone 0 (Cat.1)

T30... continuous magnetic immersible probes are used for quasi-acquisition of the filling level in containers with liquid media.

General data

Connection aluminium box : H30 x B50 x T45 mm
Connection polyester box : H56 x B80 x T75 mm
connection cable : 1000 mm PUR blau
Protection class Socket : IP65
Material Sliding tube : VA 1.4571
Material of the angle fastening : VA 1.4408
Sliding tube length : max. 6000 mm
Operating temperature : max. 130 °C
Resolution : 7,5 mm | 10 mm | 15 mm | 20 mm
Mounting : 2 Schlauchschellen
Accessories : R/I-Wandler TK-101

EF2 24...230 V

Conductive electrodes with 24...230 V direct connection

The EF2 overfill protection (24...230 V AC/DC) is approved by "DIBt" as an overfill protection for liquids hazardous to water.

Properties

connection : Polyesterdose (PO)
Protection class : IP 65
connection thread : G1"
Union nut : auf Wunsch

Material

Screw connection : PE, PVC, PPH, PTFE
Sensor rods : Edelstahl (1.4571), Hastelloy C, Titan, Tantal
Operating pressure : atmosphärisch
Resistance value of line monitoring : 100 kΩ
Sensitivity range : einstellbar 2…100 kΩ

Operating temperature

PE : atmosphärisch
PVC : atmosphärisch
PPH : 90 °C
PTFE : 100 °C

Power supply

nominal voltage : 24…230 V AC/DC
Power consumption : < 2 W

Output

Output contact : 2 potentialfreie Wechselkontakte
Switching voltage : max. 250 V AC /30 V DC
Switching current : max. 5 A AC / 5 A DC
Switching capacity : max. 750 VA / 90 W
displays : Betriebs-LED Grün, Funktions-LED Rot
Switching delay : ca. 0,5 s Anzug / Abfall
CE marking : siehe Konformitätserklärung

ZDS-H

Precision pressure switch for high-pressure applications up to 2,000 bar

Can be used in oil, brake fluid, diesel, air and other gases. With very good stability and overpressure resistance.

Properties

Pressure range : 0...2.000 bar gestuft
supply : 24 V DC
Output : Relais 60 V AC/1A
overload : 1,5 x Messbereich
Med. connection : G 1/4 Zoll
electrical connection : Schraubklemme
feature : Tasten, LCD-Anz.

EE-2XF

Conductive electrodes as overfill protection for Ex-Zone 0 (Cat. 1)

Conductive electrodes EE-2XF for monitoring conductive liquids within the Ex area Zone 0 (Cat. 1) for water-polluting and flammable liquids.

Properties

connection : Edelstahl (1.4571)
Protection class : IP 65
Ex-protection : TÜV 02 ATEX 1796 X
Ex protection type : II 1 G Ex ia IIC T6 bzw. Ex ia IIB T6 / II ½ G Ex ia IIC T6 bzw. Ex ia IIB T6
connection thread : G1", G1¼", G1½”
Coating length : voll=ganzer Stab (10 mm am Stabende sind blank) teil =ca. 250 mm von oben
Rod diameter : 4 oder 6 mm
rod length : max. 6 m
Operating pressure media side : max. 40 bar
Maximum permissible electrical connection values : Stromkreis in Zündschutzart Eigensicherheit Ex ia IIC/IIB
Connection values : Ui 15V | Li 10 mA | Pi 100 mW
Internal inductances / capacitances : vernachlässigbar klein
Spacer : ab Länge > 1000 mm je 1000 mm 1 Abstandshalter