Track updates

AS/NZS 3123:2005


Approval and test specification — Plugs, socket-outlets and couplers for general industrial application

Specifies essential safety requirements for plugs, socket-outlets, cable couplers and appliance couplers for operation at 50 Hz, with a rated voltage not exceeding 660 V and a rated current not exceeding 315 A intended for general industrial use. It is intended to be read in conjunction with AS/NZS 3100.
Published: 17/02/2005
Pages: 64
Inclusive of GST
Available formats
Available formats
Web Reader
Instantly view standards in your browser. Search, bookmark, highlight, and comment for anytime access - online and offline.
Web Reader (PDF)
View standards in PDF format in your browser. Search, bookmark, highlight, and comment for anytime access - online and offline.
Web Reader
1 user
Add to cart
visa logo
mastercard logo
amex logo
Table of contents
Cited references
Content history
Table of contents
About this publication
1 Scope and referenced documents
1.1 Scope
1.2 Referenced documents
2 Definitions
3 General requirements
4 General notes on tests
4.1 Type of tests
4.2 Sampling
4.3 Order of tests
4.4 Number of samples
4.5 Pass criteria
4.6 Conductors
5 Rating
5.1 Rated voltages
5.2 Rated currents
6 Classification
7 Marking
7.1 General
7.2 Symbols
7.3 Socket‑outlets and appliance inlets
7.4 Plugs and connectors
7.5 Rewireable accessories
7.6 Legibility and durability
7.7 Literature available from the manufacturer
8 Dimensions
8.1 General
8.2 Protection against improper connections
8.3 Protection against single‑pin or unintended connections
9 Protection against electric shock
9.1 Design
9.2 Earthing connection
10 Provision for earthing
10.1 Earthing connection
10.2 Accessible metal parts
10.3 Prevention of overheating
10.4 Protection against mechanical damage
11 Terminals
11.1 Types of fixings
11.2 Construction
11.3 Earthing terminal
11.4 Connection of conductor
11.5 Mechanical strength
11.6 Fixing to accessory
11.7 Clamping of conductor
11.8 Loosening of clamping screws or nuts
11.9 Protection and segregation of terminals
11.10 Prevention of improper contact
12 Interlocks, retaining devices and switches
12.1 Interlocks
12.2 Retaining devices
12.3 Switches
13 Resistance to ultraviolet radiation
14 General construction
14.1 General
14.2 Accessible surfaces
14.3 Screws
14.4 Position of earthing or neutral contact or pin
14.5 Material suitability for conditions of use
15 Construction of socket‑outlets
15.1 Socket‑outlet and plug contact
15.1.1 General
15.1.2 Withdrawal force test
15.1.3 Alternative withdrawal force test
15.1.4 Contact pressure
15.2 Construction
15.3 Parts providing protection
15.4 Cable entries
15.5 Insulating linings, barriers and the like
15.6 Protected socket‑outlets
16 Construction of plugs and connectors
16.1 General
16.2 Loosening of plug or connector
16.3 Insulating lining
16.4 Prevention of rotation
16.5 Contacts
16.6 Contact force
16.7 Protected plugs
16.8 Protected connectors
17 Construction of appliance inlets
17.1 Prevention of rotation
17.2 Protected appliance inlets
17.3 Pins
18 IP designation
19 Insulation resistance and electric strength
19.1 General
19.2 Insulation resistance test
19.3 High voltage (electric strength) test
20 Breaking capacity
21 Mechanical endurance
21.1 General
21.2 Mechanical endurance test
21.3 Lid spring test
22 Temperature rise
23 Flexible cables and cords and their connection
23.1 Non‑rewireable plugs and connectors
23.2 Cable anchorage
23.3 Rewireable plugs and connectors
23.4 Plugs and connectors provided with flexible cables and flexible cords
24 Mechanical strength
24.1 General
24.2 Impact hammer test for socket-outlets and appliance inlets
24.3 Tests for plugs and connectors
24.4 Additional test for non-rewireable plugs and connectors
24.5 Test for glands of protected accessories
25 Screws, current‑carrying parts and connections
25.1 Mechanical strength
25.2 Engagement of thread of insulating material
25.3 Contact pressure of electrical connections
25.4 Use of screws and rivets
25.5 Current-carrying parts
25.6 Resistance to corrosion
26 Creepage distances, clearances and distances through sealing compound
26.1 General
26.2 Sealing compound
27 Resistance to heat, fire and tracking
27.1 Determination of ignitability and combustion propagation∗
27.1 Resistance to fire test†
27.2 Heat behaviour test
27.3 Resistance to tracking
28 Resistance to rusting
Amendment control sheet
Cited references in this standard
Plugs, fixed or portable socket-outlets and appliance inlets for industrial purposes — Part 1: General requirements
Electric cables — Polymeric insulated, Part 2: For working voltages up to and including 450/750 V
Approval and test specification — Plugs and socket-outlets
Electric cables — Polymeric insulated, Part 1: For working voltages up to and including 0.6/1 (1.2) kV
Low-voltage switchgear and controlgear, Part 3: Switches, disconnectors, switch-disconnectors and fuse-combination units
Content history
DR 04378