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Data sheet

SECURITON AG Alpenstrasse 20 CH - 3052 Zollikofen Switzerland T 800452 1 / 4

MHD 535 Earth Connecting Box ECB 535

The Earth Connecting Box ECB 535 is a connection and filter module with additional lightning protectors . Whereas the Protection and Filter Module PFM 535 is designed to protect the sensor cable, the Earth Connecting Box ECB 535 is designed to protect the Processor Unit PU and therefore hasto be installed in its vicinity. To cope with increased electromagnetic interferences (EMI), an Earth Connecting Box ECB 535 is inserted in theconnecting cable CCA 535 after the Processor Unit PU .

Notice

An Earth Connecting Box ECB 535 must be used in all VdS-compliant installations.

In addition to the sensor cable, the connected Processor Unit PU can also be protected against voltage peaks which are coupled via the power

input lines. A separate connection with a side cable entry is therefore provided.

Construction of the Earth Connecting Box ECB 535

The Earth Connecting Box ECB 535 comprises a plastic enclosure made of glass fiber reinforced polyester containing the electronic componentsfor the protection of the Processor Unit PU . The printed circuit board features a f lat-ribbon connector for the direct connection of the sensor cable,and in addition a seven-pole plug-in terminal for connecting the sensor cable via a connecting cable. Additional lightning protection elementsare integrated in the Earth Connecting Box ECB 535 .

In addition to the sensor cable, the connected Processor Unit PU can also be protected against voltage peaks which are coupled via the supply

input voltage lines. A separate connection with a side cable entry is therefore provided.

The connection of the Earth Connecting Box ECB 535 to the ground potential must have good conductivity and use connections that are as shortas possible.

Figure 1: Construction of the Earth Connecting Box ECB 535

Terminal block for the connecting cableCCA 535

Overvoltage arrester for the supplyvoltage

Flat-ribbon connector Cable entry sensor cable/connectingcable

Banana connector Cable entry supply line Processor Unit PU

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Data sheet

2 / 4 T 800452 MHD535Revision: 11/05/09 vbThe product specifications contained in this document are subject to change without notice. Copyright by Securiton

Mounting the Earth Connecting Box ECB 535

Mounting position of the Earth Connecting Box ECB 535

The Earth Connecting Box ECB 535 can be mounted on the X, Y or Z axis.

Figure 2: Drilling plan of the Earth Connecting Box ECB 535

Selecting the location for the Earth Connecting Box ECB 535

The Earth Connecting Box ECB 535 should be placed immediately next to the Processor Unit PU .

Fastening the Earth Connecting Box ECB 535

The Earth Connecting Box ECB 535 is fastened using 4 screws. When mounting on cement or masonry in tunnel applications, special nail anchorsCMS 511 with stainless steel V4A screws (5/15x35) should be used. A minimum distance of 15 cm from parts on site (control cabinets,alcoves etc.) should be kept on the entry side of the sensor cable.

Safety Notice

For protection against humidity, the enclosed desiccant bag should be left inside the Earth Connecting Box ECB535 .

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Data sheet

MHD535 T 800452 3 / 4

Technical specifications of the Earth Connecting Box ECB 535

Figure 3: Dimensioned drawing of the Earth Connecting Box ECB 535

Module Type Parameter Values RemarkECB 535 Operating voltage +10 ... +20 VDC Via sensor/connecting cable of the

Processor Unit PU

Power consumption approx. 0 mA (only passive elements)

Protection class IP65 in accordance with IEC 529 / EN 60529(1991)

Ambient conditions 3K5 / 3Z1 in accordance with IEC 721-3-3 / EN60721-3-3 (1995)

Temperature range -40 ... +85 C

Ambient condition humidity

95 % rel. hum. for a short time without condensation

70 % rel. hum. constant

Connection of connecting cable 2.5 mm 2 maximum

Connection of sensor cable 8-pole

Cable entry2 x seal inserts MHD 535FX 2 x seal inserts MHD 535SD 2 x seal inserts MHD 535HD

Sensor cable

2 x seal inserts 8 - 5 mm Connecting cable

Material of enclosure glass-fiber reinforced polyester

Approval VdS EN54

Dimensions 106 x 165 x 56 mm incl. cable entries

Weight approx. 460 g

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Data sheet

4 / 4 T 800452 MHD535Revision: 11/05/09 vbThe product specifications contained in this document are subject to change without notice. Copyright by Securiton

Danger

Prior to the implementation and commissioning of an installation, the technical documentation T800469 must beobserved.

Connection overview

An overview of the connection of the various devices can be seen in the tables below.

Conductor Processor Unit PU Earth Connecting Box ECB 535 Sensor cable moduleShield Tm 0 Tm 0

pink Tm 1 Tm 1 Tm 0

blue Tm 2 Tm 2 Tm 1

white Tm 3 Tm 3 Tm 2

gray Tm 4 Tm 4 Tm 3

green Tm 5 Tm 5 Tm 4

yellow Tm 6 Tm 6 Tm 5

brown Tm 7 Tm 7 Tm 6

Table 1: Overview of connection of connecting cable

Conductor Processor Unit PU Earth Connecting Box ECB 535 Sensor cable moduleShield Tm 0/1 Banana connector Banana connector

Flat-ribbon cable Flat-ribbon connector Flat-ribbon connector Flat-ribbon connector Table 2: Overview of connection of sensor cable

Item numbers of cable module

Brief description Type Item number Earth Connecting Box ECB 535 MECB0000PEFGRST2

Cable Terminator Module CTM 535 Rev G. MCTM00R0PEFGRST2

Connection and Filter Module CFM 535 Rev G. MCFM00R0PEFGRST2

Protection and Filter Module PFM 535 Rev G. MPFM00R0PEFGRST2

Sensor Separator Module SSM 535 Rev G. MSSM00R0PEFGRST2