限位开关的工作的实际有效距离。当动物接近静物时，开关的连杆驱动开关的接点引起闭合的接点分断或者断开的接点闭合。由开关接点开、合状态的改变去控制电路和机。
限位开关分工作限位开关和极限限位开关，工作限位开关是用来给出机构动作到位信号的。极限限位开关是防止机构动作超出设计范围而发生事故的。工作限位开关安装在机构需要改变工况的位置，开关动作后，给出信号，进行别的相关动作。
T2C 422-01Y
T2C 422-10Y
T2C 422-10Y-T
TD 422-01Y-1090/2512
TD 422-01Y-1801/2512-1
TD 422-01Y-2512
TD 422-01Y-2512-10
TD 422-10Y-1801/2512-1
TD 422-10Y-2512
TD 422-10Y-2512-10
TJ 422-01Y
TK 422-01Y
TK 422-01Y-Q
TK 422-01Y-T
TK 422-01Y-U180
TK 422-10Y
TK 422-10Y-T
TL 422-01Y-1090/2512-6
TL 422-01Y-2512-16
TL 422-01Y-2512-6
TL 422-01Y-T-2512-6
TL 422-01Y-U180-2512-6
TL 422-10Y-T-2512-6
TL 422-10Y-U180-2512-6
TR 422-01Y
TR 422-01Y-PG
TR 422-01Y-T
TR 422-01Y-T-PG
TR 422-10Y
TR 422-10Y-PG
TR 422-10Y-T
TR 422-10Y-T-PG
TS 422-01Y
TS 422-01Y-T-M20
TS 422-10Y
TS 422-10Y-T
441系列
M. 441-11Y-1224
M. 441-11Y-M20-243
M. 441-11Y-T-1276-1
M. 441-11Y-T-1276-2
M. 441-11Y-T-1276-2/1801
M. 441-11Y-T-1801
M2S 441-11Y
M2S 441-11Y-T
MD 441-11Y-2512
MD 441-11Y-2512-10
MD 441-11Y-T-2512
MJ 441-11Y
MJ 441-11Y-T
MK 441-11Y
MK 441-11Y-T
ML 441-11Y-2512-16
ML 441-11Y-2512-6
ML 441-11Y-T-1276-2/1801/2512-7
ML 441-11Y-T-1801/2512-7
ML 441-11Y-T-2512-6
ML 441-11Y-U180-2512-6
MR 441-11Y
MR 441-11Y-T
MR 441-11Y-T-1276-2
MS 441-11Y-M20
MS 441-11Y-T
MS 441-11Y-M20-1276-1
T. 441-11Y-1224
T. 441-11Y-1801
T. 441-11Y-966
T. 441-11Y-M20-243
T. 441-11Y-T-1276-2/1801
T. 441-11Y-T-1649
T. 441-11Y-UE-T-M20-316
T. 441-11Y-T-1801
T. 441-11Y-UE-1224
T. 441-11Y-UE-243
T. 441-11Y-UE-243/8022-2
T. 441-11Y-UE-966
T. 441-11Y-UE-T-M20-316
T2C 441-11Y-M20
T2S 441-11Y-T
TD 441-11Y-2512
TD 441-11Y-2512-10
TD 441-11Y-T-2512
TJ 441-11Y
TK 441-11Y
TL 441-11Y-T-1276-2
TK 441-11Y-T-M20
TL 441-11Y-2512-16
TL 441-11Y-2512-6
TL 441-11Y-T-1276-2/1801/2512-7
TL 441-11Y-T-1649/2512-6
TL 441-11Y-T-1801/2512-7
TL 441-11Y-T-2512-6
TR 441-11Y-M20
TR 441-11Y-T-M20
TS 441-11Y
TS 441-11Y-T
TS 441-11Y-UE-M20
TL 441-11Y-T-1801
452系列
T.452-02y
Z/T235系列限位开关
AZ235-11Z,ZR235-11Z,TS235-11Z,TR235-11Z,TS235-20Z,TR235-20Z,TS235-02Z,TR235-
02Z,
Z4S235-11Z,Z4R235-11Z,ZK235-11Z,T4S235-11Z,T4R235-11Z,TK235-11Z,T4S235-
20Z,T4R235-20Z,TK235-20Z,T4S235-02Z,T4R235-02Z,TK235-02Z,ZV12H235-
11Z,ZV14H235-11Z, TV12H235-11Z,TV14H235-11Z,TV12H235-20Z,TV14H235-
20Z,TV12H235-02Z,TV14H235-02Z,ZV10H235-11Z,Z3K235-11Z, TV10H235-11Z,T3K235-
11Z, TV10H235-20Z,T3K235-20Z,
TV10H235-02Z,T3K235-02Z,Z4K235-11Z,ZK4235-11Z,T4K235-11Z,TK4235-11Z,T4K235-
20Z,TK4235-20Z, T4K235-02Z,TK4235-02Z
松岛限位开关MGL-5100、MGL-5101、MGL-5102、MGL-5103、MGL-5161、MGL-5163、MGL-5191、MGL-5193 、MGL-5210、MGL-5211、MGL-5530、MGL-5531、
Z/T236系列限位开关
ZS236-11Z,ZR236-11Z,
TS236-11Z,TR236-11Z,
TS236-20Z,TR236-20Z,
TS236-02Z,TR236-02Z,
Z4R236-11Z,ZK236-11Z,
T4R236-11Z,TK236-11Z,
T4R236-20Z,TK236-20Z,
T4R236-02Z,ZK236-02Z,
ZV1H236-11Z,Z1R236-11Z, TV1H236-11Z,T1R236-11Z, TV1H236-
20Z,T1R236-20Z, TV1H236-02Z,T1R236-02Z, ZV10H236-11Z,Z3K236-11Z, TV10H236-
11Z,T3K236-11Z, TV10H236-20Z,T3K236-20Z,TV10H236-02Z,T3K236-02Z,Z4K236-
11Z,ZK4236-11Z,T4K236-11Z,TK4236-11Z,T4K236-20Z,TK4236-20Z, T4K236-
02Z,TK4236-02Z
Z/T256系列限位开关
ZS256-11Z,ZR256-11Z,TS256-11Z,TR256-11Z,TS256-20Z,TR256-20Z, TS256-02Z,TR256
-02Z,
Z4S256-11Z,Z4R256-11Z,ZK256-11Z,T4S256-11Z,T4R256-11Z,TK256-11Z,T4S256-
20Z,T4R256-20Z,TK256-20Z,T4S256-02Z,T4R256-02Z,TK256-02Z,Z3K256-11Z,Z4K256-
11Z,T3K256-11Z,T4K256-11Z,T3K256-20Z,T4K256-20Z,T3K256-02Z,T4K256-02Z,ZK4256
-11Z,ZV1H256-11Z,ZV7H256-11Z, TK4256-11Z,TV1H256-11Z,TV7H256-11Z, TK4256-
20Z,TV1H256-20Z,TV7H256-20Z
TK4256-02Z,TV1H256-02Z,TV7H256-02Z,ZV10H256-11Z, TV10H256-11Z, TV10H256-20Z,
TV10H256-02Z,
Z/T335系列限位开关 、行程开关
ZS335-11Z,ZR335-11Z,
ZS335-02Z,ZR335-02Z,
TS335-11Z,TR335-11Z,
TS335-11ZU,TR335-11ZU,
TS335-20Z,TR335-20Z,
TS335-11Zh,TR335-11Zh,
TS335-02Z,TR335-02Z,TS335-
02Zh,TR335-02Zh,
Z4VH335-11Z,
Z4V7H335-11Z,
Z4V10H335-11Z,
Z4VH335-02Z,
Z4V7H335-02Z,
Z4V10H335-02Z,
T4VH335-11Z,
T4V7H335-11Z,
T4V10H335-11Z,
T4VH335-11ZU,T4V7H335-11ZU,
T4V10H335-11ZU,T4VH335-20Z,T4V7H335-20Z,T4V10H335-
20Z,T4VH335-20Zh,T4V7H335-20Zh,T4V10H335-20Zh,T4VH335-02Z,T4V7H335-
02Z,T4V10H335-02Z,T4VH335-02Zh,T4V7H335-02Zh,T4V10H335-02Zh,TVH335-
01/01Z,Z1K335-11Z,Z3K-335-11Z,Z1K335-02Z,Z3K-335-02Z,T1K335-11Z,T3K-335-
11Z,T1K335-11ZU,T3K-335-11ZU,T1K335-20Z,T3K-335-20Z,T1K335-20Zh,T3K-335-
20Zh,T1K335-02Z,T3K-335-02Z,T1K335-02Zh,T3K-335-02Zh
Z/T336系列限位开关
ZS336-11Z,ZR336-11Z, ZS336-02Z,ZR336-02Z, TS336-11Z,TR336-11Z, TS336-
11ZU,TR336-11ZU,
TS336-20Z,TR336-20Z,TS336-11Zh,TR336-11Zh,TS336-02Z,TR336-02Z,TS336-
02Zh,TR336-02Zh,Z4VH336-11Z,Z4V7H336-11Z,Z4V10H336-11Z,Z4VH336-02Z,Z4V7H336-
02Z,Z4V10H336-02Z,T4VH336-11Z,T4V7H336-11Z,T4V10H336-11Z,T4VH336-
11ZU,T4V7H336-11ZU,T4V10H336-11ZU,T4VH336-20Z,T4V7H336-20Z,T4V10H336-
20Z,T4VH336-20Zh,T4V7H336-20Zh,T4V10H336-20Zh,T4VH336-02Z,T4V7H336-
02Z,T4V10H336-02Z,T4VH336-02Zh,T4V7H336-02Zh,T4V10H336-02Zh,TVH336-
01/01Z,Z1K336-11Z,Z3K-336-11Z,Z1K336-02Z,Z3K-336-02Z,T1K336-11Z,T3K-336-
11Z,T1K336-11ZU,T3K-336-11ZU,T1K336-20Z,T3K-336-20Z,T1K336-20Zh,T3K-336-
20Zh,T1K336-02Z,T3K-336-02Z,T1K336-02Zh,T3K-336-02Zh
ZS332系列限位开关
ZS332-11y,ZR332-11y,Z4VH332-11y,Z4V10H332-11y,Z4V7H332-11y
SMS3-100-100, SMS3-100-150,
标准限位开关（Z/T235、Z/T 236 、Z/T 256 、Z/T 335 、Z/T 336 、Z332、Z/T 355
系列）
Z/T235系列限位开关
AZ235-11Z,ZR235-11Z,TS235-11Z,TR235-11Z,TS235-20Z,TR235-20Z,TS235-02Z,TR235-
02Z,
Z4S235-11Z,Z4R235-11Z,ZK235-11Z,T4S235-11Z,T4R235-11Z,TK235-11Z,T4S235-
20Z,T4R235-20Z,TK235-20Z,T4S235-02Z,T4R235-02Z,TK235-02Z,ZV12H235-
11Z,ZV14H235-11Z, TV12H235-11Z,TV14H235-11Z,TV12H235-20Z,TV14H235-
20Z,TV12H235-02Z,TV14H235-02Z,ZV10H235-11Z,Z3K235-11Z, TV10H235-11Z,T3K235-
11Z, TV10H235-20Z,T3K235-20Z,
TV10H235-02Z,T3K235-02Z,Z4K235-11Z,ZK4235-11Z,T4K235-11Z,TK4235-11Z,T4K235-
20Z,TK4235-20Z, T4K235-02Z,TK4235-02Z
Z/T236系列限位开关
ZS236-11Z,ZR236-11Z,TS236-11Z,TR236-11Z,TS236-20Z,TR236-20Z, TS236-02Z,TR236
-02Z,
Z4R236-11Z,ZK236-11Z,T4R236-11Z,TK236-11Z,T4R236-20Z,TK236-20Z,T4R236-
02Z,ZK236-02Z,ZV1H236-11Z,Z1R236-11Z, TV1H236-11Z,T1R236-11Z, TV1H236-
20Z,T1R236-20Z, TV1H236-02Z,T1R236-02Z, ZV10H236-11Z,Z3K236-11Z, TV10H236-
11Z,T3K236-11Z, TV10H236-20Z,T3K236-20Z,TV10H236-02Z,T3K236-02Z,Z4K236-
11Z,ZK4236-11Z,T4K236-11Z,TK4236-11Z,T4K236-20Z,TK4236-20Z, T4K236-
02Z,TK4236-02Z
Z/T256系列限位开关
ZS256-11Z,ZR256-11Z,TS256-11Z,TR256-11Z,TS256-20Z,TR256-20Z, TS256-02Z,TR256
-02Z,
Z4S256-11Z,Z4R256-11Z,ZK256-11Z,T4S256-11Z,T4R256-11Z,TK256-11Z,T4S256-
20Z,T4R256-20Z,TK256-20Z,T4S256-02Z,T4R256-02Z,TK256-02Z,Z3K256-11Z,Z4K256-
11Z,T3K256-11Z,T4K256-11Z,T3K256-20Z,T4K256-20Z,T3K256-02Z,T4K256-02Z,ZK4256
-11Z,ZV1H256-11Z,ZV7H256-11Z, TK4256-11Z,TV1H256-11Z,TV7H256-11Z, TK4256-
20Z,TV1H256-20Z,TV7H256-20Z
TK4256-02Z,TV1H256-02Z,TV7H256-02Z,ZV10H256-11Z, TV10H256-11Z, TV10H256-20Z,
TV10H256-02Z,
Z/T335系列限位开关 、行程开关
ZS335-11Z,ZR335-11Z, ZS335-02Z,ZR335-02Z, TS335-11Z,TR335-11Z, TS335-
11ZU,TR335-11ZU,
TS335-20Z,TR335-20Z,TS335-11Zh,TR335-11Zh,TS335-02Z,TR335-02Z,TS335-
02Zh,TR335-02Zh,Z4VH335-11Z,Z4V7H335-11Z,Z4V10H335-11Z,Z4VH335-02Z,Z4V7H335-
02Z,Z4V10H335-02Z,T4VH335-11Z,T4V7H335-11Z,T4V10H335-11Z,T4VH335-
11ZU,T4V7H335-11ZU,T4V10H335-11ZU,T4VH335-20Z,T4V7H335-20Z,T4V10H335-
20Z,T4VH335-20Zh,T4V7H335-20Zh,T4V10H335-20Zh,T4VH335-02Z,T4V7H335-
02Z,T4V10H335-02Z,T4VH335-02Zh,T4V7H335-02Zh,T4V10H335-02Zh,TVH335-