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下限2接点:合并了两个下限形式，分为两接点独立动作（双设定、双回路）和两接点同时动作（单设定，双回路）两种类型。
耐压:压力开关保持其正常性能所能承受的最大压力。但是当压力开关用于过压场合时，敏感元件将会产生持续形变，这时压力设定值将变化，压力开关将不能发挥其正常性能甚至可能损坏。
A10VS018DR/31R-PPA12N00
A10VSO18DFR1/31R-PPA12N00
A10VSO18DFR1/31R-PPB12N00
A10VSO18DFR1/32R-VPB12N00
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A10VSO28DFR/31R-PSA12N00
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A10VSO58DFR1/31R-PPA12N00
A10VS045DFR1/31RPPA12NOO
E-A10VSO45DFR1/31R-PPA12N00
A10VS045DFR/31R-PPA12NOO-SO32
A10VS045DR/31R-PPA12N00
A10VS045DR/52R-PC12N00
A10V045DFR1/31R-PSC62K02
A10VSO45DFR1/31R-PPA12N00
A10VS045DR/31RPPB12-NDD
A10VO45DFR1/31R-PSC62K02
IP（防护等级）:是由国际电工协会（IEC）所起草，关于灯具防尘防潮特性的标准。
1)、压力开关保护调节范围的选择:
保护调节范围的选择与压力开关的设定点（动作值）有关。选择的原则是应使设定值大于压力开关调节范围为量程上限的15%-95%，如一台压力开关的量程为1MPa，那么它的最佳动作值范围为0.15-0.95MPa之间。
2)、压力开关工作压力的选择:DG4V-3-2A-M-U-H7-60
DG4V-3S-2A-M-U-H5-60
DG4V-3-2AL-M-U-H7-60
DG4V-3S-2AL-M-U-H5-60
DG4V-3-31C-M-U-H7-60
DG4V-3-22B-M-U-H7-60
DG4V-3-23A-M-U-H7-60
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DG4V-3S-0A-M-U-H5-60
DG4V-3-2B-M-U-H7-60
DG4V-3-2BL-M-U-H7-60
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DG4V-5-6CJ-M-U-H6-20
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DG4V-5-0A-M-U-H6-20
DG4V-5-2N-M-U-H6-20
DG4V-5-0CJ-M-U-H6-20
对于绝大多数情况，压力开关的最大压力都有足够的欲度来满足用户工作压力的要求。有一点应该注意，最大压力（最大工作压力）与最大调节范围是两回事，前者要远远大于后者。
A4VSO40LR2G/10R-PPB13N00
A4VSO71DFR/10X-PPB13N00
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EPV16-A-10-S-5C-24D-S-U-13
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DG4V-3-33C-M-U-H7-60
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DG4V-3-6C-M-U-D6-60
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