短絡電流定格(SCCR)

1 NEC 409 UL 508a , SB (Short Circuit Current Ratings) (SCCR) NEC (NEC) 409 2005 (NEC) 409 (OEM) (SCCR) 409 NEC 409 NEC UL508A, SB NEC 2005 UL508A, SB ..3 ..6 ..7 ..8 ..8 1:NEC 2005 NEC 1. ( )2.

2 3. a. b. UL508A-2001, SB 1 4. 5. 6. NEC 2 UL UL 508a , SB UL508A, 3 1 2 3 a) b) SB UL508A, SB c) UL 508 c)

3 UL NEC 409 UL 508a , SB (6 ) NEMA IEC 1 3: 2: 3 ( ) 2 Ipeak I2t 3 UL SB : 2 SB : UL SB : CC, G, J, L, RK1, RK5, T 2,3msec Ipeak, I2t, 2 4: UL 508a SB 5.

4 UL 508a SB UL 4 6 ( ) 2 c) 3 6: 7:2 ( ) 480V 40kA 480V 40kA 65kA 480V 65kA * 5100kA*100kA*100kA*100kA*100kA65kA70kA10 0kA*65kA65kA70kA*65kA65kA 480V 65kA PowerFlex SB UL/CSA

5 NEMA 500 & 100kA 480V, 50kA 600V 100kA 600V ( 2)IEC 100 & 65kA 480V, 30kA 600V ( 2) 100kA 600V ( 2)SMC 70kA 600 VPowerFlex 100kA 480V 200kA 600 VNEMA & IEC 200kA 600V 100kA 600V6 NEMA IEC SMC Flex NEMA IEC 140M-C2E-A16 Submit 8:Rockwell Web 9: 10: 140M 7 NEMA IEC Publication Number SCCR-TD001A-JA-P September 2006 Copyright 2006 Rockwell Automation, Inc.

6 All Rights Reserved. Printed in USA. NEC * 11: * Understanding NEC Article 409 and UL 508a Short Circuit Current Ratings CDPower Terminal Block Technical DataControl Circuit and Load ProtectionTechnical Web Allen-Bradley Drives Technical Support 1-440-646-5800 ( ) Web Automation, Allen-Bradley, PowerFlex, SMC Rockwell Automation Rockwell Automation