Weidmuller NTI SAK 4 32 Specialty Control Systems
Standards:
EN IEC 60079-0:2018 and EN 60079-7:2015 A1:2018
IEC 60079-0: 7th Edition and IEC 60079-7: 5.1th Edition
Modular Terminal Blocks: SAK 4
| Order No | ||
| Version: | SAK 4 SAK 4 BL | 0128360000 0128380000 |
| in conjunction with: | EK 4 | 035456000 |
| Accessories: | Type | |
| end plate | AP SAK4-10* | 0117960000 |
| partition plate | TW 4 SAK4-10* | 0130160000 |
| end bracket | EWK 1* | 0206160000 |
| Terminal rail | TS 32/… acc.to IEC 60715 | |
| Cross-connection | Q 2 SAK4 Q 3 SAK4 Q 4 SAK4 Q 10 SAK4 | 0336700000 0336800000 0336900000 0368800000 |
Insulation material:
| – Type – Tracking resistance (A) to IEC 60112 – Flammability class to UL 94 | PA CTI ≥ 600 V2 |
| – Operating temperature range – Ambient temperature range – Ambient temperature range – Ambient temperature range | -50°C to +85°C (insulating material limit) -50°C…+40°C (for T6 applications) -50°C…+45°C (for T5 applications) -50°C…+45°C (for T4 applications) |
* in all colours
Technical data according to IEC/EN 60079-7 (increased safety “eb”)
| SAK 4 | EK 4 | |
| – Rated voltage | 550 V | |
| – Rated current | 32 A | |
| – Temperature rise with rated current | ≤ 40 K / 32 A | |
| – Rated current with cross connection | 32 A | |
| – Contact resistance with rated conductor | 0,2 mΩ | 0,4 mΩ |
| – Conductor cross section solid | 0,5 – 6 mm² | 0,5 – 6 mm² |
| – Conductor cross section stranded | 1,5 – 4 mm² | 1,5 – 4 mm² |
| – Conductor cross section flexible | 0,5 – 4 mm² | 0,5 – 4 mm² |
| – cross section, American Wire Gauge | 22 – 10 AWG | 22 – 10 AWG |
| – Tightening torque range, terminal screw | 0,5 – 1 Nm | 0,5 – 1 Nm |
| – Tightening torque range, fixing screw | — | 0,5 – 1 Nm |
| – Tightening torque range for cross connection | 0,5 – 1 Nm | — |
| – Stripping length | 12 mm | 12 mm |
IECEx / ATEX / UKCA Terminal and Cross-Connection Arrangements
Max voltage data according to IEC/EN 60079-7 in conjunction with protective earth terminal blocks of the SAK-Series, (increased safety “eb”):
Note: Please use the end plate AP SAK4-10
Application Case
Information for further cross-connector arrangements will be provided on request.
Note:
If smaller cross sections than the rated cross section are used, the belonging lower current has to be laid down in the IECEx/EC-Type Examination Certificate of the complete apparatus.
Mounting instructions:
Regarding the use of accessories the instructions of the manufacturer must be followed.
Schedule of Limitations:
The SAK/EK-series products are suitable for use in enclosures in atmospheres with flammable gases or combustible dust. For flammable gases these enclosures must satisfy the requirements according to IEC/EN60079-0 and IEC/EN60079-7. For combustible dust the enclosure must satisfy the requirements according to IEC/EN60079-0 and IEC/EN60079-31.
The enclosure shall be constructed to block all sun and UV light from affecting the terminal blocks. The terminal blocks shall be placed inside a suitable certified IP54 enclosure in type of protection “eb” for gas atmosphere. For dust atmosphere the terminal blocks shall be mounted inside a suitable certified enclosure (IEC/EN60079-31) in type of protection “t”.
Under normal operating conditions the temperature rise of the terminal blocks is maximum 40 K, measured at the maximum permitted rated current. Due to the above mentioned, the terminal blocks may be used in apparatus of temperature classes T6..T1 as long as the terminal block ambient temperature range is not exceeded. No part of terminal block must exceed 85°C under any condition.
Ambient temperature
T6 (- 50°C … +40 °C)
T5 (- 50°C … +45 °C)
T4 (- 50°C … +45 °C)
When using the SAK/EK-series products especially with other terminal blocks series or sizes or accessories the requirements for clearance and creepage distances according to IEC/EN60079-7 must be observed. Regarding the use of covers, cross-connectors and end brackets the instructions of the manufacturer must be followed.
For cross connection accessories current rating, resistance across the terminal please refer to the table under “technical data” above.
No other wire sizes or types than the ones specified in instructions must be used. The terminal blocks must either be mounted next to another block of the same type and size or with an end plate.
If smaller conductor cross sections than the rated conductor cross sections are used, then the corresponding lower current shall be stated in the Certificate of the complete apparatus.
Unused terminals shall be tighted.
Essential Health and Safety Requirements:
Concerning ESRs this Schedule verifies compliance with the Annex II of ATEX / Schedule 1 of UKCA directive and Equipment and Protective Systems Intended for Use in Potentially Explosive Atmospheres Regulations 2016 only. By placing the product on the market, the manufacturer declares compliance with other relevant Directives, and all other safety related requirements including those of Annex II / Schedule 1 of these Directives.
Weidmüller Interface GmbH Co. KG; Klingenbergstraße 26, 32758 Detmold-Germany
acc.to
