LOW-VOLTAGE SWITCHGEAR AND CONTROLGEAR - PART 5-1: CONTROL CIRCUIT DEVICES AND SWITCHING ELEMENTS - ELECTROMECHANICAL CONTROL CIRCUIT DEVICES
International Electrotechnical Committee
FOREWORD
1 General
2 Terms and definitions
3 Classification
4 Characteristics
5 Product information
6 Normal service, mounting and transport
conditions
7 Constructional and performance requirements
8 Tests
Annex A (normative) - Electrical ratings based
on utilization categories
Annex B (normative) - Example of inductive
test loads for d.c. contacts
Annex C (normative) - Special tests - Durability
tests
Annex D Vacant
Annex E (normative) - Items subject to agreement
between manufacturer and user
Annex F (normative) - Class II control circuit
devices insulated by encapsulation
Requirements and tests
Annex G (normative) - Additional requirements
for control circuit devices with integrally
connected cables
Annex H (normative) - Additional requirements
for semiconductor switching elements for
control circuit devices
Annex J (normative) - Special requirements
for indicator lights and indicating towers
Annex K (normative) - Special requirements
for control switches with direct opening
action
Annex L (normative) - Special requirements
for mechanically linked contact elements
Annex M (normative) - Terminal marking,
distinctive number and distinctive letter
for control circuit devices
Annex N (normative) - Procedure to determine
reliability data for electromechanical
devices in control circuits used in
functional safety applications
Bibliography
Pertains to control circuit devices and switching elements intended for controlling, signalling, interlocking, etc., of switchgear and controlgear
| Document Type | Standard |
| Status | Current |
| Publisher | International Electrotechnical Committee |
| Committee | TC 121 |
