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BS EN 62246-1:2015

BS EN 62246-1:2015

$215.11

Reed switches – Generic specification

Published By Publication Date Number of Pages
BSI 2015 84
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This part of IEC 62246 which is a generic specification applies to all types of reed switches including magnetically biased reed switches of assessed quality for use in general and industrial applications.

NOTE 1

Mercury wetted reed switches are not covered by this standard due to their possible environmental impact.

It lists the tests and measurement procedures which may be selected for use in detail specifications for such reed switches.

This standard applies to reed switches which are operated by an applied magnetic field; it is not restricted to any particular type of contact load.

For elementary relays with reed switches, this standard is recommended to be used together with the standards IEC 61810‑1 , IEC 61811‑1 as applicable.

For applications of reed switches, this standard is recommended to be used together with specific product standards.

NOTE 2

Where any discrepancies occur for any reasons, documents rank in the following order of authority:

  1. the detail specification,

  2. the sectional specification,

  3. the generic specification,

  4. any other international documents (for example, of the IEC) to which reference is made.

The same order of precedence applies to equivalent national documents.

PDF Catalog

PDF Pages PDF Title
6 English
CONTENTS
11 INTRODUCTION
12 1 Scope
2 Normative references
13 3 Terms and definitions
3.1 Reed switch types
14 3.2 Operating values
Figures
Figure 1 – Example of reed switch structure
Figure 2 – Example of heavy-duty reed switch structure
15 Figure 3 – Functional characteristics
16 3.3 Operating times (see Figure 4)
17 Figure 4 – Time definitions
19 3.4 Contacts
Figure 5 – Contact diagram of make contact
Figure 6 – Contact diagram of break contact
20 Figure 7 – Contact diagram of change-over contact
22 4 Rated values
4.1 General
4.2 Frequency of operation
4.3 Duty factor
4.4 Open-circuit voltage across contacts
4.5 Current rating
4.6 Load ratings
4.7 Number of operations
23 4.8 Climatic category
4.9 Environmental severities
24 4.10 Surge voltage
4.11 Classification
4.12 Contact reliability
5 Marking
Tables
Table 1 – Classification
25 6 Test and measurement procedures
6.1 General
6.2 Alternative procedures
6.3 Standard conditions for testing
6.4 Visual inspection and check of dimensions
6.4.1 Visual inspection
26 6.4.2 Outline dimensions
6.4.3 Mass
6.4.4 Information to be stated in the detail specification
6.5 Functional tests
6.5.1 Procedures
27 6.5.2 Requirements
6.5.3 Information to be stated in the detail specification
28 6.6 Remanence test (see Figure 8)
6.6.1 Procedure
6.6.2 Requirements
6.6.3 Information to be stated in the detail specification
29 6.7 Contact circuit resistance
6.7.1 Procedure
6.7.2 Requirements
Figure 8 – Remanence test sequence
30 6.7.3 Information to be stated in the detail specification
6.8 Dielectric test
6.8.1 Procedures
Figure 9 – Sequence of contact circuit resistance measurement
31 6.8.2 Requirements
6.8.3 Information to be stated in the detail specification
6.9 Insulation resistance
6.9.1 Procedure
32 6.9.2 Requirements
6.9.3 Information to be stated in the detail specification
6.10 Operating times (see Figures 4, 10 and 11)
6.10.1 Procedure
33 6.10.2 Requirements
6.10.3 Information to be stated in the detail specification
Figure 10 – Test circuit for the measurement of release and bounce time of a make contact
34 6.11 Contact sticking
6.11.1 Thermal sticking
Figure 11 – Test circuit for the measurement of time parameters of a change-over contact
36 6.11.2 Magnetostrictive sticking
37 6.12 Robustness of terminals
6.12.1 Procedure
6.12.2 Requirements
6.12.3 Information to be stated in the detail specification
6.13 Soldering (solderability and resistance to soldering heat)
6.13.1 Procedure
6.13.2 Requirements
6.13.3 Information to be stated in the detail specification
6.14 Climatic sequence
6.14.1 General
38 6.14.2 Procedure
6.14.3 Requirements
6.14.4 Information to be stated in the detail specification
39 6.15 Damp heat, steady state
6.15.1 Procedure
6.15.2 Requirements
6.15.3 Information to be stated in the detail specification
6.16 Rapid change of temperature
6.16.1 Procedure
6.16.2 Requirements
6.16.3 Information to be stated in the detail specification
6.17 Salt mist
6.17.1 Procedure
40 6.17.2 Requirements
6.17.3 Information to be stated in the detail specification
6.18 Vibration
6.18.1 Vibration 1 – Functional
41 6.18.2 Vibration 2 – Survival
6.19 Shock
6.19.1 Procedure
42 6.19.2 Requirements
6.19.3 Information to be stated in the detail specification
6.20 Acceleration test – Functional test only
6.20.1 Procedure
43 6.20.2 Requirements
6.20.3 Information to be stated in the detail specification
6.21 Sealing
6.21.1 Procedure
6.21.2 Requirements
6.21.3 Information to be stated in the detail specification
6.22 Electrical endurance
6.22.1 Types of electrical endurance test
44 6.22.2 Standard electrical endurance tests
6.22.3 General test arrangements
45 6.22.4 Procedure
46 6.22.5 Standard load conditions
47 Table 2 – Resistive loads
48 Table 3 – Loads
Table 4 – Cables
Table 5 – Making and breaking capacity for electrical endurance tests
49 6.22.6 Maximum load conditions
6.22.7 Overload test conditions
6.22.8 Requirements
Table 6 – Maximum load conditions for endurance test
Table 7 – Overload test conditions for endurance test
50 6.22.9 Information to be stated in the detail specification
51 6.23 Mechanical endurance
6.23.1 General test arrangements
6.23.2 Procedure
52 6.23.3 Requirements
6.23.4 Information to be stated in the detail specification
6.24 Maximum cycling frequency
6.24.1 Procedure
53 6.24.2 Requirements
6.24.3 Information to be stated in the detail specification
6.25 Surge withstand test
6.25.1 Procedure
54 6.25.2 Requirements
6.25.3 Information to be stated in the detail specification
6.26 Making and breaking capacities
6.26.1 General test arrangements
6.26.2 Procedure
6.26.3 Requirements
6.26.4 Information to be stated in the detail specification
55 Table 8 – Verification of making and breaking capacity under normal conditions
56 6.27 Conditional short-circuit current test
6.27.1 General test arrangements
Table 9 – Verification of making and breaking capacity under abnormal conditions
57 6.27.2 Procedure
6.27.3 Requirements
6.27.4 Information to be stated in the detail specification
6.28 Contact reliability test
6.28.1 General
6.28.2 Procedure
58 6.28.3 Requirements
6.28.4 Information to be stated in the detail specification
59 6.29 Temperature rise
6.29.1 Procedure
60 6.29.2 Requirements
6.29.3 Information to be stated in the detail specification
6.30 Making current capacity test
6.30.1 General
6.30.2 Procedure
6.30.3 Requirements
61 6.30.4 Information to be stated in the detail specification
6.31 Breaking current capacity test
6.31.1 General
6.31.2 Procedure
62 6.31.3 Requirements
6.31.4 Information to be stated in the detail specification
64 Annexes
Annex A (normative) Standard test coils for reed switches
Figure A.1 – Configuration of test coils
Table A.1 – List of standard test coils (1 of 2)
66 Annex B (normative) Test systems
Figure B.1 – Test system 1
Figure B.2 – Test system 2
68 Annex C (informative) Electrical endurance test circuit
Figure C.1 – Generalized endurance test circuit
69 Figure C.2 – Functional block diagram
70 Annex D (informative) Inrush current loads
D.1 Filament lamp loads
D.2 Capacitive loads
Figure D.1 – Circuit for filament lamp load
71 Figure D.2 – Example for capacitive load test
72 Annex E (informative) Conditional short-circuit current test circuit
Figure E.1 – Conditional short-circuit current test circuit
73 Annex F (informative) Electrical ratings based on classification (see Table F.1)
Table F.1 – Examples of contact rating designation based on classification
74 Annex G (informative) Example of horsepower ratings
Table G.1 – Examples of horsepower ratings
75 Annex H (informative) Example of test arrangement for contact reliability test (see Figure H.1)
Figure H.1 – Contact reliability test circuit
77 Annex I (informative) Example of test arrangement for making current capacity test
Figure I.1 – Making current capacity test circuit
Figure I.2 – Making current capacity test sequence
79 Annex J (informative) Example of test arrangement for breaking current capacity test
Figure J.1 – Breaking current capacity test circuit
Figure J.2 – Breaking current capacity test sequence
81 Bibliography

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BS EN 62246-1:2015
$215.11