Vega Overvoltage protection B 81-35 Product information

Brand: Vega

Model: Overvoltage protection B 81-35

Type: Product information

This manual is also suitable for

Product information

Separating and protective instruments

Overvoltage arresters

B53-19

B61-300, B61-300 FI

B62-36G, B62-30W

B63-32, B63-48

B81-35

Document ID: 50707

Contents

Separating and protective instruments

50707-US-170321

Contents

1 Product description ............................................................................................................................................................................................... 3

2 Type overview ......................................................................................................................................................................................................... 4

3 Electrical connection ............................................................................................................................................................................................. 5

4 Dimensions ............................................................................................................................................................................................................. 7

Take note of safety instructions for Ex applications

Please note the Ex specic safety information which you can nd on our homepage www.vega.com/downloads under "Approvals" and which

comes with every instrument. In hazardous areas you should take note of the corresponding regulations, conformity and type approval certicates

of the sensors and power supply units. The sensors must only be operated on intrinsically safe circuits. The permissible electrical values are stated

in the certicate.

Product description

Separating and protective instruments

50707-US-170321

1 Product description

Overvoltage arresters limit interference and overvoltages in industrial

system to uncritical values so that failures and malfunctions of connected

instruments cannot occur.

An overvoltage arrester can be used on both sides of the circuit. It is e.g.

mounted on a carrier rail near the sensor, directly in the cable entry, or near

the signal conditioning instrument, PLC or control system. This way, the eld

side as well as the processing side are protected in case of voltage surges.

The following circuit diagram shows the electrical conguration of an over-

voltage arrester.

Fig. 1: Simplied circuit diagram with an overvoltage arrester, in this case a B62-36G

1 Overvoltage arrester

2 Potential equalisation

This product information booklet gives you an overview and helps you

select the right overvoltage arrester.

Overvoltage arrester for carrier rail mounting

Ty p B62 - 36 G

OUT

IP 20

max. 36 V DC/ li = 450 A

Li <= 0,15 mH / Ci <= 2,5 nF

A1+

A2-

E1+

E2-

Fig. 2: Conguration of an overvoltage arrester for carrier rail mounting, in this case a

B62-36G

1 Terminals "Out" (protected side)

2 Screw for carrier rail fastening

3 Terminals "In" (unprotected side)

4 Type label

Overvoltage arrester B53-19

The B53-19 is an overvoltage arrester for the measuring cable of conduc-

tive probes.

Overvoltage arrester B61-300

The B61-300 is an overvoltage arrester for sensors and signal conditioning

instruments with mains voltage supply.

Overvoltage arrester B61-300 FI

The B61-300 FI is an overvoltage arrester for sensors and signal condi-

tioning instruments with mains power supply connected via a fault-current

circuit breaker (FI).

Overvoltage arrester B62-30W

The B62-30W is an overvoltage arrester for supply and control cables for

Probus PA instruments.

Overvoltage arrester B62-36G

The B62-36G is an overvoltage arrester for sensors and signal conditioning

instruments in two-wire technology 4 … 20 mA/HART.

Overvoltage arrester for mounting in sensor housing

Fig. 3: Conguration of an overvoltage arrester for mounting inside the sensor housing

1 Terminals for the signal cable input (unprotected side)

2 Overvoltage protection

3 Signal cable output to the sensor (protected side)

Overvoltage arrester B63-32, B63-48

B63-32 and B63-48 are overvoltage arresters for installation inside the

housings of VEGA level and pressure sensors.

Fig. 4: Conguration, overvoltage arrester for mounting on the sensor electronics

1 Overvoltage protection

2 Plug connector to the sensor electronics (protected side)

3 Connection cable to ground terminal

4 Terminal block to the supply and signal cable (unprotected side)

Overvoltage arrester B81-35

The B81-35 is an overvoltage arrester for mounting on the electronics mod-

ules of VEGA level and pressure sensors.

Type overview

Separating and protective instruments

50707-US-170321

2 Type overview

B53-19 B61-300 B61-300FI B62-30W B62-36G

Area of application Measuring cable of con-

ductive probes

Sensors and signal con-

ditioning instruments with

mains voltage supply

Sensors and signal con-

ditioning instruments with

mains voltage supply

through fault-current cir-

cuit breaker (FI)

Supply and signal cables

of Probus PA instru-

ments

Sensors and signal con-

ditioning instruments

in two-wire technology

4 … 20 mA/HART

Operating voltage 19 V 100 … 300 V AC/DC 100 … 300 V AC/DC 9 … 36 V DC 9 … 36 V DC

Response voltage 22 V 500 V 500 V 41 V 41 V

Mounting Carrier rail mounting

Ambient temperature -40 … +60 °C (-40 … +140 °F)

Protection rating IP 20 (unmounted), IP 65 (mounted)

Approvals - ATEX, IEC

B63-32/48 B81-35

Area of application Sensors in two-wire technology 4 … 20 mA/HART, Probus PA,

Foundation Fieldbus

Sensors in two-wire technology 4 … 20 mA/HART, Probus PA,

Foundation Fieldbus

Operating voltage 32 V DC/48 V DC 9 … 35 V DC

Response voltage 38 V/76 V 41 V

Mounting In the sensor housing On the sensor electronics

Ambient temperature -40 … +85 °C (-40 … +185 °F) -40 … +85 °C (-40 … +176 °F)

Protection rating IP 20 (unassembled)

IP 66/IP 67, IP 66/IP 68 (0.2 bar) - mounted

Approvals ATEX

Electrical connection

Separating and protective instruments

50707-US-170321

3 Electrical connection

3.1 Connection B53-19

Wiring plan

Typ B53 - 19

OUT

IP 20

max. 19 VAC, 27 VDC/1 A

Li <= 0,5 mH / Ci <= 3nF

A1 A2

max.

min.

Fig. 12: Wiring plan, overvoltage arrester B53-19 with conductive single rod probe

1 Measuring probe

2 Overvoltage protection

3 Protected instrument (signal conditioning instrument)

4 Voltage supply

5 Potential equalisation

3.2 Connection B61-300

Wiring plan

B61 - 300

OUT

IP 20

max. 300 V AC/0,5 A

Fig. 13: Wiring plan, overvoltage arrester B61-300

1 Mains supply

2 Overvoltage protection

3 PE terminal

4 Protected instrument (e.g. signal conditioning instrument)

5 Carrier rail

6 Potential equalisation

3.3 Connection B61-300 FI

Wiring plan

B61 - 300 FI

OUT

IP 20

max. 300 V AC/0,5 A

Fig. 14: Wiring plan, overvoltage arrester B61-300 FI

1 Mains supply through fault-current circuit breaker (FI)

2 Overvoltage protection

3 PE terminal

4 Protected instrument (e.g. signal conditioning instrument)

5 Carrier rail

3.4 Connection B62-30W

Wiring plan

2 -

B62 - 30 W

OUT

IP 20

max. 36 VDC/ li 0,4 A

Ri = 3,6 Ohm

A1+

A2-

E1+

E2-

Fig. 15: Wiring plan, overvoltage arrester B62-30W

1 Protected instrument (sensor)

2 Overvoltage protection

3 Probus PA System

4 Potential equalisation

Electrical connection

Separating and protective instruments

50707-US-170321

3.5 Connection B62-36G

Wiring plan

2 -

Typ B62 - 36 G

OUT

IP 20

max. 36 V DC/ li = 450 A

Li <= 0,15 mH / Ci <= 2,5 nF

A1+

A2-

E1+

E2-

Fig. 16: Wiring plan, overvoltage arrester B62-36G

1 Protected instrument (sensor)

2 Overvoltage protection

3 Signal conditioning instrument/PLC

4 Potential equalisation

3.6 Connection B63-32, B63-48

Wiring plan

( )

(-)

678

4...20mA

Fig. 17: Wiring plan, overvoltage arrester B63-32, B63-48

1 Protected instrument (sensor)

2 Overvoltage arrester

3 Signal conditioning instrument/PLC

4 Potential equalisation

Terminals sensor Wire colour/Polarity

1 Red (+)

2 Black (-)

Ground terminal Green/Yellow

3.7 Connection B81-35

Wiring plan

B81-35

0044

35 VDC

D-77761 Schiltach

( )

(-)

678

4...20mA

Fig. 18: Wiring plan, overvoltage arrester B81-35

1 Voltage supply/Signal output

2 Overvoltage protection

3 Ground terminal for connection of the cable screenand the connection cable of

the overvoltage protection module

Dimensions

Separating and protective instruments

50707-US-170321

4 Dimensions

Overvoltage arrester for carrier rail mounting

84 mm

(3.31")

52 mm

(2.05")

25 mm

(0.98")

Fig. 19: Dimensions, overvoltage protection

Housing

ø5,5 mm

(0.22")

86 mm

(3.39")

120 mm

(4.72")

160 mm

(6.30")

77 mm

(3.03")

47 mm

(1.85")

50 mm

(1.97")

ø4,5 mm

(0.18")

82 mm

(3.23")

68 mm

(2.68")

72 mm

(2.84")

130 mm

(5.12")

116 mm

(4.57")

M 20 x 1,5

Fig. 20: Dimensions, housing

1 Plastic housing

2 Aluminium housing

Overvoltage arrester for mounting in sensor housing

76 mm

(2.99")

SW 27 mm

(1.06")

56 mm

(2.21")

300 mm

(11.81")

8 mm

(0.31")

76 mm

(2.99")

56 mm

(2.21")

300 mm

(11.81")

Fig. 21: Dimensions, overvoltage protection

1 Thread M20 x 1.5 or ½ NPT, depending on order specication

Overvoltage arrester for mounting on sensor electronics

17 mm

(0.67")

9 mm

(0.35")

10 mm

(0.39")

19 mm

(0.75")

74 mm

(2.91")

27 mm

(1.08")

12 mm

(0.47")

Fig. 22: Dimensions, overvoltage protection

VEGA Grieshaber KG

Am Hohenstein 113

77761 Schiltach

Germany

50707-US-170321

All statements concerning scope of delivery, application, practical use and operating conditions of the sensors and processing systems correspond to the information available

at the time of printing.

Subject to change without prior notice

Phone +49 7836 50-0

Fax +49 7836 50-201

E-mail: [email protected]

www.vega.com