UL 1977:1999 pdf download Component Connectors for Use in Data, Signal, Control and Power Applications
1 Scope
1,1 These requirements cover single and multipole connectors, intended for factory assembly to copper orcopper alloy conductors or printed wiring boards, for use in data, signal, control and power applications withinand between electrical equipment.
1.2 These requirements apply to devices categorized as follows (See Figure 1.1):
a) Type 0 rated up to 8.3 A and up to 30 V rms (42 V peak);
b) Type 1A rated up to 8.3 A and from 30 V to 600 V ac or dc, or both;
c) Type 1B rated from 8.3 A and up to 200 A, and up to 30 V rms (42 V peak);
d) Type 2 rated from 8.3 A up to 31 A and from 30 V to 600 V ac or dc or both;
e) Type 3 rated from 31 A up to 200 A and from 30 V to 600 V ac or dc, or both.
Type designations used in this Standard only serve as a guide to determine appropriate requirements, and donot represent an assigned rating. A device not assigned a current rating is considered either to be Type 0 orType 1A depending upon the assigned voltage rating.
1.3 This standard does not directly apply to the following but may supplement other applicable standards:
a) Devices produced integrally with flexible cord or cable that are covered by the Standard for CordSets and Power-Supply Cords, UL 817;
0) Devices intended for connection to the branch circuit, such as attachment plugs, cord connectorsreceptacles, inlets, and outlets, that are covered by the Standard for Attachment Plugs andReceptacles,UL 498;
c) Devices solely intended for direct connection to the branch circuit in accordance with the NationalElectrical Code, NFPA 70, and that are provided with contacts of the pin and sleeve type, covered bythe requirements for plugs, receptacles, and cable connectors of the pin and sleeve type, UL 1682:
d) Devices consisting of wiring terminals and supporting blocks intended for the connection of wiringthat are covered by the Standard for Terminal Blocks, UL 1059;
e) Devices intended for use with telecommunications networks, that are covered by the Standard forTelephone Equipment, UL 1459, or the Standard for Communications Circuit Accessories, UL 1863
) Devices such as wire connectors and soldering lugs that are covered by the Standards for WireConnectors – For Use With Copper Conductors, UL 486A; Splicing Wire Connectors, UL 486C; orEquipment Wiring Terminals, UL 486E;
g) Devices such as quick-connect terminals that are covered by the Standard for Quick ConnectTerminals,UL 310.
1.4 A product that contains features, characteristics, components, materials, or systems new or different fromthose covered by the requirements in this Standard, and that involves a risk of fire, electric shock, or injury topersons shall be evaluated using the appropriate additional component and end-product requirements asdetermined necessary to maintain the acceptable level of safety as originally anticipated by the intent of thisStandard.A product whose features, characteristics, components, materials, or systems conflict with specificrequirements or provisions of this Standard cannot be judged to comply with this Standard, Where consideredappropriate, revision of requirements shall be proposed and adopted in conformance with the methodsemployed for development, revision, and implementation of this Standard.
2 Glossary
2.1 For the purpose of this Standard, the following definitions apply.2.2 CONTACT – A conductive element intended to mate with a corresponding element to provide an electricalpath.
2.3 ENCLOSURE – The case or housing into which the insulator and contacts are assembled
2.4 HYBRID DEVICE – A device employing dedicated contacts of two or more type designations.