22C-D022H103

22C-D022H103

22C-D022H103

22C-D022H103

早期的镜头都只有单一的焦距，但后来聪明的工程师开始思考：如果一支镜头能有不同的焦距该多好？换句话说：如果只用一支镜头就既能拍摄近处较大的物体（比如建筑和风光），又能拍摄远处较小的物体（比如足球场上的运动员）那该多好？

科学家们研究出一种改变镜头结构的方法，因此可以改变镜头的节点靠近或远离传感器。通过这种方法，他们发明了变焦镜头。

当变焦镜头诞生后，就需要一个名字来称呼不可变焦的镜头——定焦镜头。

Westinghouse Breaker HFB HFB3025 25Amp A 25A Amp 25

Westinghouse Breaker HFB HFB3060 60A A 60Amp 60 Amp

Westinghouse Seltronic HNC31200F 1000 Amp A 1000Amp

Westinghouse Breaker FD3070LF 70 Amp 70A A 70Amp

Westinghouse Circuit Breaker MCP03150R 15 Amp A 15A Aux

Westinghouse Circuit Breaker MCP0358R 7Amp 7 A 7A Amp

Westinghouse Circuit Breaker MCP0322R 3Amp 3 A 3A Amp

Westinghouse Circuit Breaker EHB1020 20Amp A 20A

Westinghouse Circuit Breaker EHB1015 EHB 15Amp A 15A

Westinghouse Seltronic HMC3800F 800 Amp A 800A

Westinghouse Breaker MA3800F 600Amp 600A Amp 600 A

LAMBDA SE-500-3 115V 10A Regulated Power Supply SE5003

Siemens SBH 2012 SBH2012 SBH2012DV 1200 Amp SB12TP02G

GE General Electric Breaker Module AMC3GM 3 Pole 600Amp

GE General Electric TKM826F000 800 Amp 800A A 800A Trip

GE General Electric SGDA32AT0400 400Amp A 400A Amp

GE General Electric Tri-Break TB 43F TB43400 400Amp A

GE General Electric Tri-Break TB 43F TB43400 400Amp A

GE General Electric TFJ TFJ236175WL 175Amp A 175A Trip

GE General Electric Breaker Module AMC6EY 6 Pole 200Amp

GE General Electric Tri-Break TB 43F TB43300 300Amp A

GE General Electric Breaker TED113015 15Amp 15A Amp

GE General Electric Breaker TED TED113030 30Amp A 30A

GE General Electric Breaker TEB TEB111030 30Amp A 30A

GE General Electric Breaker TED124010 10Amp A 10A

Siemens SBH 2012 SBH2012 SBH2012F 1200 Amp SB12TP02G

Siemens SBS 2012 SBS2012 SBS2012DV 1200 Amp SB12TP02G

Siemens SBH 2012 SBH2012 SBH2012DV 1200 Amp SB12TP02G

Nireco TM1400 Tension Meter Horton TM-1400

Siemens SBS 2012 SBS2012 SBS2012F 1200 Amp SB12TP02G

Siemens SBH 2012 SBH2012 SBH2012F 1200 Amp SB12TP02G

US Electric Titan TE Motor 300 HP 1785 RPM 449TL 449T

General Electric GE QMR323/QMR321 100A 30A Fused Switch

Nireco TM1400 Tension Meter Horton TM-1400

TCI 250 HP Harmonic Guard 3H080A6L5A250 80 kVAR Filter 

C-H W HMCP Breaker HMCP400X5WS10 400Amp A 400A 400 NEW

C-H W HMCP Breaker HM2P400X5WS10 400Amp A 400A 400 NEW

Square D Transformer 118.5 kVA 460/460Y/266 3 PH 460 Y

Square D NCL361200 NCL 1200 Amp A 1200A 600vac 

LAMBDA LFS-50-24 AC/DC 187-250VAC Power Supply LFS5024

C-H W HMCP Breaker HMCP400X5C 400Amp A 400A 400 New

GE General Electric THFK236F000 125Amp A 125A Adj. Trip

TCI 200 HP Harmonic Guard 3H060A6L5A200 60 kVAR Filter 

Square D MHL36400 400 Amp 400A A MHL-36400

Fanuc A06B-6105-H002 6 Axis Servo Amplifier

GE Fanuc IC660EBA105K Genius 115V Output IC660EBA105-K

Cosel R25U-24 100-120/24V 1.1A Power Supply R25U24

General Electric GE QMR323/QMR322 100A 60A Fused Switch

SBC CHB35/70SE Digital Drive S.B.C. 380V 380 V