AS/NZS 3947.5.1:2000
Low-voltage switchgear and controlgear - Control circuit devices and switching elements - Electromechanical control circuit devices
Applies to control circuit devices and switching elements intended for controlling, signalling and interlocking of switchgear and controlgear having a rated voltage not exceeding 1000 V a.c. (at a frequency not exceeding 1000 Hz) or 600 V d.c. Provides special requirements for indicator lights and control switches with positive opening operation. This Standard is identical with and reproduced from IEC 60947-5-1:1997 including Amendment 1:1999 and Amendment 2:1999.
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AS/NZS 3947.5.1:2000 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - CONTROL CIRCUIT DEVICES AND SWITCHING ELEMENTS - ELECTROMECH...
PREFACE
CONTENTS
1 General
1.1 Scope and object
1.2 Normative references
2 Definitions
2.1 Basic definitions
2.1.1 control circuit device
2.1.2 control switch (for control and auxiliary circuits)
2.1.3 control switch suitable for isolation
2.1.4 control station
2.2 Control switches
2.2.1 automatic control switches
2.2.2 manually operated control switches
2.3 Parts of control switches
2.3.1 switching element
2.3.2 semiconductor element
2.3.3 contact element (of a control switch)
2.3.4 button
2.3.5 locating mechanism (of a rotary switch)
2.3.6 end stop
2.4 Operation of control switches
2.4.1 Operation of contactor relays
2.4.2 Operation of pilot switches
2.4.3 Operation of rotary 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
4.1.1 Operation of a control switch
4.2 Type of control circuit device or switching element
4.2.1 Kind of control circuit device
4.2.2 Kind of switching elements
4.2.3 Number of poles
4.2.4 Kind of current
4.2.5 Interrupting medium
4.2.6 Operating conditions
4.3 Rated and limiting values for switching elements
4.3.1 Rated voltages (of a switching element)
4.3.2 Currents
4.3.3 Rated frequency
4.3.4 Vacant
4.3.5 Normal and abnormal load characteristics
4.3.6 Short- circuit characteristics
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
5.2.1 General
5.2.2 Terminal identification and marking
5.2.3 Functional markings
5.2.4 Emergency stop
5.2.5 Operating diagram
5.2.6 Time delay markings
5.3 Instructions for installation, operation and maintenance
5.4 Additional information
6 Normal service, mounting and transport conditions
6.3.1 Mounting of single hole mounted devices
7 Constructional and performance requirements
7.1 Constructional requirements
7.1.1 Materials
7.1.2 Current-carrying parts and their connections
7.1.3 Clearances and creepage distances
7.1.6 Conditions for control switches suitable for isolation
7.1.7 Class II control circuit devices
7.1.8 Requirements for control devices with integrally connected cables
7.2 Performance requirements
7.2.3 Dielectric properties
7.2.4 Ability to make and break under normal and abnormal load conditions
7.2.5 Conditional short- circuit current
7.2.6 Switching overvoltage
7.2.7 Additional requirements for control switches suitable for isolation
8 Tests
8.1 Kinds of test
8.1.1 General
8.1.2 Type tests
8.1.3 Routine tests
8.1.4 Sampling tests
8.1.5 Special tests
8.2 Compliance with constructional requirements
8.2.5 Verification of actuating force (or moment)
8.2.6 Verification of limitation of rotation (of a rotary switch)
8.3 Performance
8.3.1 Test sequences
8.3.2 General test conditions
8.3.3 Performance under no- load, normal load and abnormal load conditions
8.3.4 Performance under conditional short- circuit current
ANNEX A - Electrical ratings based on utilization categories (see 3.1)
ANNEX B - Example of inductive test loads for d.c. contacts
B. 1 General
B. 2 Construction
ANNEX C - Special tests – Durability tests
C.1 General
C.2 Mechanical durability
C.3 Electrical durability
ANNEX D - Clearances and creepage distances of control circuit devices
D.1 Scope
D.2 Definitions
D.3 General
D.4 Determination of clearances and creepage distances
D.5 Minimum values of clearances and creepage distances
ANNEX E - Items subject to agreement between manufacturer and user
ANNEX F - Class II control circuit devices insulated by encapsulation — Requirements and tests
F.1 General
F.2 Definitions
F.5 Marking
F.7 Constructional and functional requirements
F.8 Tests
ANNEX G - Additional requirements for control circuit devices with integrally connected cables
G.1 General
G.2 Definitions
G.7 Constructional and performance requirements
G.8 Tests
ANNEX H - Additional requirements for semiconductor switching elements for 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 - Special requirements for indicator lights
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 - Special requirements for control switches with 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 - 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
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AS/NZS 3947.5.1:2000 LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - CONTROL CIRCUIT DEVICES AND SWITCHING ELEMENTS - ELECTROMECH...
PREFACE
CONTENTS
1 General
1.1 Scope and object
1.2 Normative references
2 Definitions
2.1 Basic definitions
2.1.1 control circuit device
2.1.2 control switch (for control and auxiliary circuits)
2.1.3 control switch suitable for isolation
2.1.4 control station
2.2 Control switches
2.2.1 automatic control switches
2.2.2 manually operated control switches
2.3 Parts of control switches
2.3.1 switching element
2.3.2 semiconductor element
2.3.3 contact element (of a control switch)
2.3.4 button
2.3.5 locating mechanism (of a rotary switch)
2.3.6 end stop
2.4 Operation of control switches
2.4.1 Operation of contactor relays
2.4.2 Operation of pilot switches
2.4.3 Operation of rotary 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
4.1.1 Operation of a control switch
4.2 Type of control circuit device or switching element
4.2.1 Kind of control circuit device
4.2.2 Kind of switching elements
4.2.3 Number of poles
4.2.4 Kind of current
4.2.5 Interrupting medium
4.2.6 Operating conditions
4.3 Rated and limiting values for switching elements
4.3.1 Rated voltages (of a switching element)
4.3.2 Currents
4.3.3 Rated frequency
4.3.4 Vacant
4.3.5 Normal and abnormal load characteristics
4.3.6 Short- circuit characteristics
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
5.2.1 General
5.2.2 Terminal identification and marking
5.2.3 Functional markings
5.2.4 Emergency stop
5.2.5 Operating diagram
5.2.6 Time delay markings
5.3 Instructions for installation, operation and maintenance
5.4 Additional information
6 Normal service, mounting and transport conditions
6.3.1 Mounting of single hole mounted devices
7 Constructional and performance requirements
7.1 Constructional requirements
7.1.1 Materials
7.1.2 Current-carrying parts and their connections
7.1.3 Clearances and creepage distances
7.1.6 Conditions for control switches suitable for isolation
7.1.7 Class II control circuit devices
7.1.8 Requirements for control devices with integrally connected cables
7.2 Performance requirements
7.2.3 Dielectric properties
7.2.4 Ability to make and break under normal and abnormal load conditions
7.2.5 Conditional short- circuit current
7.2.6 Switching overvoltage
7.2.7 Additional requirements for control switches suitable for isolation
8 Tests
8.1 Kinds of test
8.1.1 General
8.1.2 Type tests
8.1.3 Routine tests
8.1.4 Sampling tests
8.1.5 Special tests
8.2 Compliance with constructional requirements
8.2.5 Verification of actuating force (or moment)
8.2.6 Verification of limitation of rotation (of a rotary switch)
8.3 Performance
8.3.1 Test sequences
8.3.2 General test conditions
8.3.3 Performance under no- load, normal load and abnormal load conditions
8.3.4 Performance under conditional short- circuit current
ANNEX A - Electrical ratings based on utilization categories (see 3.1)
ANNEX B - Example of inductive test loads for d.c. contacts
B. 1 General
B. 2 Construction
ANNEX C - Special tests – Durability tests
C.1 General
C.2 Mechanical durability
C.3 Electrical durability
ANNEX D - Clearances and creepage distances of control circuit devices
D.1 Scope
D.2 Definitions
D.3 General
D.4 Determination of clearances and creepage distances
D.5 Minimum values of clearances and creepage distances
ANNEX E - Items subject to agreement between manufacturer and user
ANNEX F - Class II control circuit devices insulated by encapsulation — Requirements and tests
F.1 General
F.2 Definitions
F.5 Marking
F.7 Constructional and functional requirements
F.8 Tests
ANNEX G - Additional requirements for control circuit devices with integrally connected cables
G.1 General
G.2 Definitions
G.7 Constructional and performance requirements
G.8 Tests
ANNEX H - Additional requirements for semiconductor switching elements for 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 - Special requirements for indicator lights
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 - Special requirements for control switches with 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 - 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
AS/NZS 3947.5.1:2000
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.