HUBBELL ELECTRICAL PRODUCTS
A Division of HUBBELL INC. (Delaware)
2112 Fenton Logistics Park Blvd
Fenton, Missouri 63026 USA
INSTALLATION, OPERATION &
MAINTENANCE DATA SHEET
Series “GZ” and “GZ…-M” Operators
P/N KIL00921506 FORM NO. K1506 R08/19ECO-3-041-19 Page 3of 4
The chart below shows the wire size for each type of devices.
Device type
Hard wire (up to 2
wires)
Flexible cable (up to 2
wires)
Hard wire (up to 2
wires)
Flexible cable (up
to 2 wires)
Torque
Pushbuttons and lights 2.5mm21.5mm218 - 13 AWG 20 - 15 AWG
Selector switches 2.5mm22.5mm212 AWG 14 AWG
IECEx AND ATEX SPECIAL CONDITIONS FOR SAFE USE
UL/CSA CONDITIONS OF ACCEPTABILITY
•For flameproof applications, the actuators and signaling elements shall
only be installed in Ex d enclosures with maximum internal volume of
35 liters and approved for at least Group IIC according to EN60079-
1/IEC 60079-1.
•For flameproof applications, the actuators and signaling elements shall
only be installed in Ex d enclosures with maximum internal explosion
pressure of 20 bar for Group IIC according to EN60079-1/IEC 60079-1.
•The actuators and signaling elements shall only be used for a service
temperature range of -50°C to +60°C.
•For flameproof applications, the actuators and signaling elements shall
only be threaded in enclosure walls having a minimum length of 8.0
mm for M22x1,5 thread, and at least five (5) threads engaged for 3/4"
NPSM thread, according to table 4, from EN 60079-1/IEC 60079-1. The
maximum thickness of the enclosure wall is limited by size (length) of
the actuating and signal elements.
•For dustproof applications, the actuators and signaling elements shall
only be threaded in enclosure wall having a minimum length of 3,0 mm
for M22x1,5 or 3,7 mm for 3/4"NPSM thread, and at least threads
engaged according to EN 60079-31/IEC 60079-31. The maximum
thickness of the enclosures wall is limited by size (length) of the
actuating and signal elements. The elements have to be fixed in the
electrical equipment in such a way that rotation and accidental
loosening will be prevented.
•For the pilot light and illuminated buttons, the maximum load for LED is
2 W.
•The outer molding of the elements has to be tightened according
manufacturer's instructions.
•For flameproof applications, the actuators and signalling elements shall
only be installed in Ex d enclosures with maximum internal volume of
160 litres and approved for at most Group IIB+H2, according to
EN60079-1/IEC 60079-1.
•For flameproof applications, the actuators and signaling elements shall
only be installed in Ex d enclosures with maximum internal volume of
35 liters and approved for at least Group IIC, according to EN60079-
1/IEC 60079-1
•
The flameproof joints are not intended to be repaired.
•Open type devices should be mounted through covers / walls of
enclosures having adequate strength and thickness in the
intended manner. The manufacturer’s instructions must be
followed.
•
The devices have been assessed for use in a service
temperature range of -50°C to +60°C.
•With regards to Unclassified Location
temperatures must not exceed 70°C.
•All dead-metal parts shall be grounded or shall contact grounded
metal parts in the final assembly.
•
The threaded joint located between the auxiliary device body
and the end equipment enclosure shall consist of at least six (6)
full threads of engagement for M22x1,5 and at least seven (7)
full threads of engagement for 3/4"NPSM for Class I Group B
locations, 5 full threads for Class I, Groups C&D,
threads of engagement for Class II and III locations.
•
These devices were only evaluated relevant to their installation
through covers / walls of enclosures with a free volume up to 160
dm3with a maximum internal
explosion pressure of 20 bar (290 psi), all requirements from the
relevant standards must be considered in the end application.
•
The devices were evaluated for ingress protection when installed
in an enclosure
wall/cover, and it is known to be Type 4X. When
installed on enclosure walls/covers, and the enclosure is also
rated Type 4X, it is known to maintain the
protection.
•
Metric threads shall have a tolerance Class of 6g/6H or better
according to
Standard for General Purpose Metric Screw
Threads - Tolerances - Part 1, ISO 965-1 and the Standard for
General Purpose Metric Screw Threads - Tolerances - Part 3,
ISO 965-3.
•The maximum load for LED is 2 W.
Upon receiving the product, the parts must stored in a covered, clean and
dry place so that there is no contact between threads of the products.
Technical information, advice and recommendations contained in these
documents is based upon information that Killark believes to be reliable.
All the information and advice contained in these documents is intended for
use only by persons having been trained and possessing the requisite skill
and know-how and to be used by such persons only at their own discretion
and risk.
The nature of these instructions is informative only and does not cover all of
the details, variations or combinations in which this equipment may be used,
its storage, delivery, installation, check out, safe operation and maintenance.
Since conditions of use of the product are outside of the care, custody and
control of Killark, the purchaser should determine the suitability of the
product for his intended use and assumes all risk and liability whatsoever in
connection therewith.
INSPECTION AND MAINTENANCE
Inspection and maintenance must be performed in accordance with the
applicable codes of practice by an appropriately trained person.
A properly trained person shall perform the repair of equipment in
accordance with the manufacturer's instructions and applicable codes of
practice. Repair/modification must be performed only with manufacturer
original parts and should be limited to the replacement of the following
•Power supply module for pilot light
•Color calotte for signaling
