GLZ301 Honeywell Sensing and Control, GLZ301 Datasheet - Page 3

• Manufacturer Part Number: GLZ301
• Description: Switch Body
• Manufacturer: Honeywell Sensing and Control
• Series: -r

Specifications of GLZ301

• Circuitry: SPDT
• Contact Configuration: SPDT
• For Use With: GLS Series Global Limit Switches
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

Standards/How to read and understand the bar chart information
Standards
IEC 947-1 explains the general rules relating to Low-voltage
switchgear and controlgear. The purpose of this standard is to
harmonize as much as possible the product performance and test
requirements for equipment where the rated voltage does not ex-
ceed 1,000 VAC or 1,500 VDC.
IEC 947-5-1 is part 5 of the general rules which relates to Control-
circuit devices and switching elements. Also within this part there
is a section which considers Special Requirements For Control
Switches With Positive Opening Operation. Any control switch
which has this positive opening operation and conforms to these
special requirements will be marked on the outside of the product
with this symbol:
The Contact Element Form defines the configuration of the contacts
and the number of contacts within the switch. e.g.
The Utilization Category defines the type of current carried (AC)
Alternating current, (DC) Direct current and the typical application in
which the switch is used e.g.
The contact rating Designation relates to the utilization categories
and defines the conventional thermal current lth (A), rated oper-
ational current le (A) at rated operational voltages Ue and the VA
rating e.g.
These IEC standards have been adopted by CENELEC (The Eu-
ropean Commitee for Electrotechnical Standardization) and have
been identified by replacing IEC with EN 60 e.g.
CENELEC has defined the dimensions and characteristics of two
types of limit switch in the standards EN 50041 and EN 50047.
These standards relate to Low voltage switchgear and control-
gear for industrial use and define the enclosure dimensions, the
operating point for various head actuators, the earth terminal re-
quirement, the terminal marking and the minimum degree of IP
protection.
ELECTRICAL RATINGS
A12
Utilization Category
AC15
AC15
AC15
AC14
DC13
DC13
Designation &
Form Za – both contact elements have the same polarity.
Form Zb – the two contact elements are electrically
separated.
AC15 – Control of Electromagnetic Loads (less than 72VA)
DC13 – Control of electromagnets.
A600 – The ‘‘A’’ denotes the maximum VA rating (AC) and the
‘‘600’’ denotes the maximum rated (AC) voltage.
Q300 – The ‘‘Q’’ denotes the maximum VA rating (DC) and the
‘‘300’’ denotes the maximum rated (DC) voltage.
IEC 947-5-1 then becomes EN 60947-5-1.
Honeywell
A600
A300
B300
D300
Q300
R300
120V 240V 380V 480V 500V 600V Make Break
125V 250V
0.55 0.27
0.22 0.1
Rated operational current le (A)
0.6
at rated operational voltage Ue
IEC947-5-1 / EN60947-5-1
6
6
3
Sensing and Control 1-800-537-6945 USA
1.5
0.3
3
3
1.9
—
—
—
1.5
—
—
—
1.4
—
—
—
1.2
—
—
—
7200
7200
3600
432
69
28
rating
VA
720
720
360
72
69
28
1-815-235-6847 International 1-800-737-3360 Canada
How to read and understand the bar chart
information
The following example relates to a unit which has a snap action
basic and which has a roller pin plunger actuator i.e. GLCB01C.
When reading these bar charts follow these rules:
1. Check what type of actuator was used to test the product, this
2. Start reading from top left of figure B, at the arrow labeled
3. Follow the black arrows and the black strip on the chart. The
All dimensions are in mm/(inches).
Figure A
Figure B
Look at Figures A and B as examples. Actuator type used for test is
the linear Cam travel type (b) shown left. The start point is at the
arrow marked ‘‘A’’ (See fig. B). This shows the free position to be 5.3
mm from the vertical center line of the unit. At this stage there is a
circuit between the terminals 21-22 but no circuit between terminals
13-14. The unit can be actuated until it reaches the operating posi-
tion which is 10.5 mm from the center line – a travel distance of 10.5 –
5.3
ment changes – no circuit between 21-22 but making a circuit
between 13-14. If, however, the contacts of terminals 21-22 weld
together and will not separate, a mechanical safety feature will take
effect if the switch is travelled past the point from which positive
opening is assured, 13.9 mm. As the switch returns it reaches the
release position at 8.9 mm from the center line. The circuit will
change back to the original state and the difference between the
operating position and the release position gives what is known as
the differential travel i.e. 10.5 – 8.9
indicates the point from which the positive opening is assured.
is on the drawings which show the head style available. It will
be one of two types:
‘‘A’’.
black strip indicates that there is a circuit between the termi-
nals whose numbers are shown on the left and when white
there is no circuit.
5.2 mm from the free position. At this point the circuit arrange-
a) Vertical travel plunger
b) Linear cam travel
1.6 mm. The asterisk (*)