UL 1066 : 4

FOREWORD
INTRODUCTION
1. Scope
2. General
3. Components
4. Units of Measurement
CONSTRUCTION
5. General
6. Corrosion Protection
7. Insulating Materials
8. Current- Carrying Parts
9. Terminations
10. Operating Mechanism
11. Grounding
12. Trip Devices
13. Interlocks
14. Control Circuit Wiring
15. Control Circuit Field Wiring Connections
PERFORMANCE
16. General
17. Interlock Verification Tests
18. Dielectric Voltage - Withstand Tests
19. Grounding Resistance Tests
20. Trip Device Calibration tests
RATINGS
21. General
MARKINGS
22. General
SUPPLEMENT SA - LOW-VOLTAGE AC POWER CIRCUIT BREAKERS
(NAVAL USE)
INTRODUCTION
SA1. Scope
PERFORMANCE
SA2. Endurance Test
SA3. Continuous Current Test
SA4. Calibration Test
SA5. Inclined Operations
SA6. Vibration Test
SA7. Calibration Test
MARKINGS
SA8. General
SUPPLEMENT SB - CLASSIFIED TRIP DEVICES FOR USE WITH LOW-
VOLTAGE AC POWER CIRCUIT BREAKERS
INTRODUCTION
SB1. Scope
CONSTRUCTION
SB2. General
PERFORMANCE
SB3. General
MARKINGS
SB4. General
MANUFACTURING AND PRODUCTION-LINE TESTS
SB5. General
APPENDIX A
Standards for Components

This revision of ANSI/UL 1066 is being issued to incorporate the following changes in requirements: Revision to SC2.5 to Clarify Testing Requirements for Circuit Breakers with a Remotely Operated Racking Mechanism Revision of the Scope to Increase the Maximum Allowable Voltage of Low-Voltage Power Circuit Breakers

1.1 These requirements cover low-voltage ac power circuit breakers as follows: a) Stationary-mounted or draw out-mounted types, b) 2-pole, 3-pole, and 4-pole constructions, c) Manually operated or power operated, and d) With or without electromechanical or solid-state type trip device.