nVent ZONEX SA Series Junction Boxes Instruction Manual

ZONEX SA Series Junction Boxes
Instruction Manual

ZONEX SA Series Junction Boxes

NOTES: Industry Standards:
ATEX Directive 2014/34/EU
ATEX
Sira 09ATEX3224U
2813 II 2 G D
Ex eb IIC Gb
Ex tb IIIC Db IP 66
EN 60079-0
EN 60079-7
EN 60079-31
IECEx
IECEx SIR 09.0099U
Ex eb IIC Gb
Ex tb IIIC Db IP 66
IEC 60079-0
IEC 60079-7
IEC 60079-31
AEx/Ex
UL File E67456 Class I, Zone I
AEx eb IIC Tamb -50C to +80C
Ex eb IIC U Tamb -50C to +80C
UL 508A Listed; Type 4, 4X, 12; File No. E61997
cUL C22.2 No. 94 Listed; Type 4, 4X, 12; File No. E61997
NEMA/EEMAC Type 4, 4X, 12
IEC 60529, IP66

ATEX and IEC Ex Service temperature of Standard Silicon Gasket is -55C to 180C.
Drill holes in gland plates only (see gland plate location).

1. Drill holes in gland plates only (see gland plate location)

2. Do not drill holes closer than 1.625 inches from the edge.

3. Visually inspect gaskets, locks and screws after each opening of covers or removing of gland plates.

4. Internal body grounding terminal shall be used for the equipment grounding connection and the external is for supplementary bonding connection where local codes or authorities permit or require such connection.

5. Earth grounding must be connected by lug on end of the cable. (A UL listed ring connector is required for Class I, Zone1 applications).

6. The number and arrangement of terminal blocks or other wiring terminals is to be determined in the end-use investigation.

7. Enclosure openings must be filled by equipment marked with the same certification as the enclosure.
   General Guide to Cable Entry Positions into Cable Gland or Enclosure Side:
   a. Maximum hole diameter is major thread diameter of cable gland plus 0.7mm (.03”)
   b. Minimum material to be maintained between holes:
   Glands M16 through M32: 15mm (0.59”)
   Glands M35 through M75: 20mm (0.79”)
   Glands M75 through M100: 35mm (1.38”)
   Prior to making holes in the enclosure wall or gland plate, verify that the selected gland will not have interference with the sealing washer and lock nut.
   c. Hole location must be located so sealing washer and locknut do not interfere with gasket.
   d. Select a gland for the correct application with the proper certifications. Make certain all cable gland

8. Painted Enclosures require these additional instructions: For fixed installations minimize the risk of electrostatic discharge of painted enclosures.
   a. Remove the explosive atmosphere prior to contact or cleaning
   b. Make certain enclosure is grounded and external enclosure ground connection is made; all conducting parts should be properly bonded.
   WARNING: Potential electrostatic charging hazard.
   c. For painted surfaces, avoid friction with surface, only clean with wet cloth moistened with de-ionized water.
   d. Avoid contact in low relative humidity environments. Increase environment humidity where possible.

9.  Warning for end product assembly: Do not open when energized. accessories are included for through hole installation. Additional accessories may include locknut and sealing washers.
   e. Install the gland in accordance to the manufacturers instructions.

For grounding at least one fastener on each gland plate must not have a nylon washer under the head.

BODY GROUNDING TERMINAL

© 2020 Hoffman Enclosures Inc.
PH 763 422 2211
nVent.com/HOFFMAN
87923920

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