AS/NZS IEC 60947.5.1:2015
Low-voltage switchgear and controlgear - Part 5.1: Control circuit devices and switching elements - Electromechanical control circuit devices
Applies to control circuit devices and switching elements intended for controlling, signalling, interlocking, etc., of switchgear and controlgear having a rated voltage not exceeding 1 000 V a.c. (at a frequency not exceeding 1 000 Hz) or 600 V d.c. It applies to specific types of control circuit devices such as manual control switches, electromagnetically operated control switches, pilot switches, position switches, and associated control circuit equipment. Identical to and reproduced from IEC 60947-5-1, Ed. 3.1 (2009).
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AS/NZS IEC 60947.5.1:2015
COPYRIGHT
PREFACE
CONTENTS
1 General
1.1 Scope and object
1.2 Normative references
2 Definitions
2.1 Basic definitions
2.2 Control switches
2.3 Parts of control switches
2.4 Operation of control switches
3 Classification
3.1 Contact elements
3.2 Control switches
3.3 Control circuit devices
3.4 Time delay switching elements
3.5 Control switch mounting
4 Characteristics
4.1 Summary of characteristics
4.2 Type of control circuit device or switching element
4.3 Rated and limiting values for switching elements
4.4 Utilization categories for switching elements
4.5 Vacant
4.6 Vacant
4.7 Vacant
4.8 Vacant
4.9 Switching overvoltages
4.10 Electrically separated contact elements
4.11 Actuating quantities for pilot switches
4.12 Pilot switches having two or more contact elements
5 Product information
5.1 Nature of information
5.2 Marking
5.3 Instructions for installation, operation and maintenance
5.4 Additional information
6 Normal service, mounting and transport conditions
7 Constructional and performance requirements
7.1 Constructional requirements
7.2 Performance requirements
7.3 Electromagnetic compatibility (EMC)
8 Tests
8.1 Kinds of test
8.2 Compliance with constructional requirements
8.3 Performance
Annex A(normative)Electrical ratings based on utilization categories
Annex B(normative)Example of inductive test loads for d.c. contacts
B.1 General
B.2 Construction
Annex C(normative)Special tests – Durability tests
C.1 General
C.2 Mechanical durability
C.3 Electrical durability
Annex DVacant
Annex E(normative)Items subject to agreement between manufacturer and user
Annex F(normative)Class II control circuit devices insulated by encapsulationRequirements and tests
F.1 General
F.2 Definitions
F.5 Marking
F.7 Instructional and functional requirements
F.8 Tests
Annex G(normative)Additional requirements for control circuit deviceswith integrally connected cables
G.1 General
G.2 Definitions
G.7 Constructional and performance requirements
G.8 Tests
Annex H(normative)Additional requirements for semiconductor switching elementsfor control circuit devices
H.1 General
H.2 Definitions
H.3 Classification
H.4 Characteristics
H.5 Product information
H.7 Constructional and performance requirements
H.8 Tests
Annex J(normative)Special requirements for indicator lights and indicating towers
J.1 General
J.2 Definitions
J.3 Classification
J.4 Characteristics
J.5 Product information
J.6 Normal service, mounting and transport conditions
J.7 Constructional and performance requirements
J.8 Tests
Annex K(normative)Special requirements for control switcheswith direct opening action
K.1 General
K.2 Definitions
K.3 Classification
K.4 Characteristics
K.5 Product information
K.6 Normal service, mounting and transport conditions
K.7 Constructional and performance requirements
K.8 Tests
Annex L(normative)Special requirements for mechanically linked contact elements
L.1 General
L.2 Definition
L.3 Classification
L.4 Characteristics
L.5 Product information
L.6 Normal service, mounting and transport conditions
L.7 Constructional and performance requirements
L.8 Tests
Annex M(normative)Terminal marking, distinctive number and distinctiveletter for control circuit devices
M.1 Scope
M.2 Terminal marking rule
M.3 Distinctive number and distinctive letter
M.4 Terminal numbering sequence
M.5 Contactor relays designated by the distinctive letter E
M.6 Contactor relays designated by distinctive letters X, Y or Z
Bibliography
Table
Table 1 – Utilization categories for switching elements
Table 2 – Mounting hole diameter anddimensions of the key recess (if any)
Table 3 – Preferred minimum distancesbetween centres of mounting holes
Table 4 – Verification of making and breaking capacities of switching elementsunder normal conditions corresponding to the utilization categories1)
Table 5 – Verification of making and breaking capacities of switching elementsunder abnormal conditions corresponding to the utilization categories
Table A.1 – Examples of contact rating designation based on utilization categories
Table A.2 – Examples of semiconductors switching element ratingsfor 50 Hz and/or 60 Hz
Table A.3 – Examples of semiconductors switching element ratings for d.c.
Table B.1 – DC loads
Table C.1 – Making and breaking conditions for electrical durability
Table H.1 – Immunity tests
Table M.1 – Diagrams of control switches
Table M.2 – Diagrams of contactor relays designated by the distinctive letter E
Table M.3 – Diagrams of contactor relays designated by the distinctive letter Y
Figure
Figure 1 – Examples of the recommended method for drawing an operating diagram of a rotary switch
Figure 2 – Operation of push-buttons
Figure 3 – Difference e between the over-travel of the actuatorand that of the contact element
Figure 4 – Examples of contact elements (schematic sketches)
Figure 5 – Test circuits for multi-pole control switches –Contacts of same polarity, not electrically separated
Figure 6 – Test circuits for multi-pole control switches –Contacts of opposite polarity, and electrically separated
Figure 7 – Load Ld details for test conditions requiring different valuesof make and break current and/or power factor (time constant)
Figure 8 – Test circuit, conditional short-circuit current
Figure 9 – Current/time limits for d.c. test loads
Figure B.1 – Construction of load for d.c. contacts
Figure C.1 – Normal circuit
Figure C.2 – Simplified circuit
Figure F.1 – Insulation by encapsulation
Figure F.2 – Test apparatus
Figure H.1 – Relationship between Ue and UB
Figure H.2 – Example of test circuit for the verification of voltage drop, minimumoperational current and OFF-state current
Figure H.3 – Short-circuit testing
Figure K.1 – Verification of robustness of the actuating system
Figure L.1 – Example of representation of NO and NC contactswhich are mechanically linked and NC non-linked contact
Figure L.2 – Symbol for device containing mechanically linked contacts
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References
Low-voltage switchgear and controlgear - Part 4.1: Contactors and motor-starters - Electromechanical contactors and motor-starters
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AS/NZS IEC 60947.5.1:2015
COPYRIGHT
PREFACE
CONTENTS
1 General
1.1 Scope and object
1.2 Normative references
2 Definitions
2.1 Basic definitions
2.2 Control switches
2.3 Parts of control switches
2.4 Operation of control switches
3 Classification
3.1 Contact elements
3.2 Control switches
3.3 Control circuit devices
3.4 Time delay switching elements
3.5 Control switch mounting
4 Characteristics
4.1 Summary of characteristics
4.2 Type of control circuit device or switching element
4.3 Rated and limiting values for switching elements
4.4 Utilization categories for switching elements
4.5 Vacant
4.6 Vacant
4.7 Vacant
4.8 Vacant
4.9 Switching overvoltages
4.10 Electrically separated contact elements
4.11 Actuating quantities for pilot switches
4.12 Pilot switches having two or more contact elements
5 Product information
5.1 Nature of information
5.2 Marking
5.3 Instructions for installation, operation and maintenance
5.4 Additional information
6 Normal service, mounting and transport conditions
7 Constructional and performance requirements
7.1 Constructional requirements
7.2 Performance requirements
7.3 Electromagnetic compatibility (EMC)
8 Tests
8.1 Kinds of test
8.2 Compliance with constructional requirements
8.3 Performance
Annex A(normative)Electrical ratings based on utilization categories
Annex B(normative)Example of inductive test loads for d.c. contacts
B.1 General
B.2 Construction
Annex C(normative)Special tests – Durability tests
C.1 General
C.2 Mechanical durability
C.3 Electrical durability
Annex DVacant
Annex E(normative)Items subject to agreement between manufacturer and user
Annex F(normative)Class II control circuit devices insulated by encapsulationRequirements and tests
F.1 General
F.2 Definitions
F.5 Marking
F.7 Instructional and functional requirements
F.8 Tests
Annex G(normative)Additional requirements for control circuit deviceswith integrally connected cables
G.1 General
G.2 Definitions
G.7 Constructional and performance requirements
G.8 Tests
Annex H(normative)Additional requirements for semiconductor switching elementsfor control circuit devices
H.1 General
H.2 Definitions
H.3 Classification
H.4 Characteristics
H.5 Product information
H.7 Constructional and performance requirements
H.8 Tests
Annex J(normative)Special requirements for indicator lights and indicating towers
J.1 General
J.2 Definitions
J.3 Classification
J.4 Characteristics
J.5 Product information
J.6 Normal service, mounting and transport conditions
J.7 Constructional and performance requirements
J.8 Tests
Annex K(normative)Special requirements for control switcheswith direct opening action
K.1 General
K.2 Definitions
K.3 Classification
K.4 Characteristics
K.5 Product information
K.6 Normal service, mounting and transport conditions
K.7 Constructional and performance requirements
K.8 Tests
Annex L(normative)Special requirements for mechanically linked contact elements
L.1 General
L.2 Definition
L.3 Classification
L.4 Characteristics
L.5 Product information
L.6 Normal service, mounting and transport conditions
L.7 Constructional and performance requirements
L.8 Tests
Annex M(normative)Terminal marking, distinctive number and distinctiveletter for control circuit devices
M.1 Scope
M.2 Terminal marking rule
M.3 Distinctive number and distinctive letter
M.4 Terminal numbering sequence
M.5 Contactor relays designated by the distinctive letter E
M.6 Contactor relays designated by distinctive letters X, Y or Z
Bibliography
Table
Table 1 – Utilization categories for switching elements
Table 2 – Mounting hole diameter anddimensions of the key recess (if any)
Table 3 – Preferred minimum distancesbetween centres of mounting holes
Table 4 – Verification of making and breaking capacities of switching elementsunder normal conditions corresponding to the utilization categories1)
Table 5 – Verification of making and breaking capacities of switching elementsunder abnormal conditions corresponding to the utilization categories
Table A.1 – Examples of contact rating designation based on utilization categories
Table A.2 – Examples of semiconductors switching element ratingsfor 50 Hz and/or 60 Hz
Table A.3 – Examples of semiconductors switching element ratings for d.c.
Table B.1 – DC loads
Table C.1 – Making and breaking conditions for electrical durability
Table H.1 – Immunity tests
Table M.1 – Diagrams of control switches
Table M.2 – Diagrams of contactor relays designated by the distinctive letter E
Table M.3 – Diagrams of contactor relays designated by the distinctive letter Y
Figure
Figure 1 – Examples of the recommended method for drawing an operating diagram of a rotary switch
Figure 2 – Operation of push-buttons
Figure 3 – Difference e between the over-travel of the actuatorand that of the contact element
Figure 4 – Examples of contact elements (schematic sketches)
Figure 5 – Test circuits for multi-pole control switches –Contacts of same polarity, not electrically separated
Figure 6 – Test circuits for multi-pole control switches –Contacts of opposite polarity, and electrically separated
Figure 7 – Load Ld details for test conditions requiring different valuesof make and break current and/or power factor (time constant)
Figure 8 – Test circuit, conditional short-circuit current
Figure 9 – Current/time limits for d.c. test loads
Figure B.1 – Construction of load for d.c. contacts
Figure C.1 – Normal circuit
Figure C.2 – Simplified circuit
Figure F.1 – Insulation by encapsulation
Figure F.2 – Test apparatus
Figure H.1 – Relationship between Ue and UB
Figure H.2 – Example of test circuit for the verification of voltage drop, minimumoperational current and OFF-state current
Figure H.3 – Short-circuit testing
Figure K.1 – Verification of robustness of the actuating system
Figure L.1 – Example of representation of NO and NC contactswhich are mechanically linked and NC non-linked contact
Figure L.2 – Symbol for device containing mechanically linked contacts
AS/NZS IEC 60947.5.1:2015
Online Library subscription information
Online library subscriptions provide a cost-effective solution for organisations of any size to access the latest standards, offering 24/7 access to a personalised catalogue. The service ensures subscribers have have the most up-to-date version of selected standards, incluing automatic updates for any amendments or versions. Pricing is dependent on the chosen standards and the number of concurrent users, with discounts applied from the standards PDF price. For customised subscriptions or further inquiries, contact the Online Library team.