PHOENIX CONTACT PTTB 2-5-PE Protective Conductor Double-Level Terminal Block Instruction Manual

: June 9, 2024
: PHOENIX CONTACT

Table of Contents

PHOENIX CONTACT PTTB 2-5-PE Protective Conductor Double-Level Terminal
Instruction
Installation and connection
For further information, see page 2
Technical dat
Attestation of Conformity
Further valid certificates
Safety notes
References
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PHOENIX CONTACT PTTB 2-5-PE Protective Conductor Double-Level Terminal

Block

PHOENIX-CONTACT-PTTB-2-5-PE-Protective-Conductor-Double-Level-Terminal-
Block-featured-image

Instruction

Protective conductor double-level terminal block with
push-in connection for use in potentially explosive areas
The terminal is designed for connecting and linking copper wires in wiring spaces with “eb”, “ec” or “nA” types of protection.

Installation instructions Increased safety “e”
The terminal block must be installed in a housing which is suitable for the type of protection. Depending on the type of protection, the housing must meet the follow-ing requirements:

Flammable gases: IEC/EN 60079-0 and IEC/EN 60079-7
Combustible dust: IEC/EN 60079-0 and IEC/EN 60079-31

When arranging terminal blocks of other series and sizes, as well as other certified components in rows, ensure that the required air clearances and creepage dis-tances are observed.
You may install the terminal block in equipment with temperature class T6 (e.g. branch or junction boxes). The rated values must be adhered to. The ambient tem-perature at the installation position may not exceed +40°C. The terminal block may also be installed in equipment with temperature classes T1 to T5. For applications in temperature classes T1 to T4, ensure compliance with the highest permissible operating temperature at the insulating parts (see Technical Data, “Installation temperature range”).

Installation and connection

Installation on the DIN rail

Snap the terminal blocks onto a corresponding DIN rail. For optical or electrical iso-lation, partition plates or covers can be inserted between the terminal blocks. When the terminal blocks are arranged in rows, fit the end terminal with the open half of the housing with the corresponding cover. If the terminal strip is not pro-tected against twisting, slipping or moving by other certified components, it must be fixed on both sides with one of the specified end brackets (see accessories). Observe the accompanying example when installing the accessories.

Note: When fixing terminal blocks with other certified components, ensure that the required air clearances and creepage distances are observed.

Use of bridging jumpers

For this purpose, the contact tab of the plug-in bridge must be disconnected for the skip PE terminal to be disconnected.

NOTE: Using skip bridging from the ground terminals reduces the rated volt-age of the bridged basic terminal blocks.

Connecting the conductors

Strip the conductors to the specified length (see technical data). Stranded conduc-tors can be fitted with ferrules. Crimp the ferrules using crimping pliers and ensure that the test requirements listed in DIN 46228 Part 4 are met. The length of the cop-per ferrules must equal the specified conductor stripping length. Solid or stranded conductors with ferrules can be connected directly without tools. Insert the con-ductor into the connection opening of the terminal block up to the stop. With small conductor cross sections and stranded conductors without ferrules, you must open the terminal point before inserting the conductor. To do so, push the inte-grated push button down using a bladed screwdriver (tool recommendation, see accessories).

For further information, see page 2

Certificate of conformity

further certificates
Reference to the general safety notes

Technical dat

EU-type examination certificate
IECEx certificate IECEx PTB 10.0021 U
Marking on the product Ex eb IIC Gb
Operating temperature range -60 °C … 110 °C
Connection capacity
Rated cross section 2,5 mm² // AWG 14
Connection capacity rigid 0,14 mm² … 4 mm² // AWG 26 – 12
Connection capacity flexible 0,14 mm² … 2,5 mm² // AWG 26 – 14
Stripping length 8 mm … 10 mm
Accessories / Type / Item No.
End cover / D-PTTB 2,5 / D-PTTB 2,5 / 3211634
Screwdriver / SZF 1-0,6X3,5 / SZF 1-0,6X3,5 / 1204517
End clamp / CLIPFIX 35-5 / CLIPFIX 35-5 / 3022276
End clamp / CLIPFIX 35 / 3022218

Attestation of Conformity

The above-mentioned product conforms with the most important requirements of directive 2014/34/EU (ATEX directive) and its amending directives. The following relevant standards were consulted for evaluating the conformity:

IEC 60079-0/EN 60079-0
IEC 60079-7/EN 60079-7

For the complete list of relevant standards, including the issue status, see attestation of conformity. This is available in the download area under the category Man-ufacturer’s Declaration.
Conformance with the provisions of the ATEX directive was certified by the follow-ing notified body:
Physikalisch-Technische Bundesanstalt, Bundesallee 100, 38116 Braunschweig, GERMANY (Ref. No. 0102)