Spirax Sarco LSB31 - General Product Information; General Description

IM-P372-27 CTLS Issue 2
5
LSB31, LSB32, LSB33, LSB34, LSB71, LSB72, LSB73 and LSB74 Limit Switch Boxes for BVA300 Series Actuators
2.1 General description
LSB limit switch boxes are normally used for indicating valve open or valve closed position. They also allow
switching points to be adjustable over the full range of actuators. There is an open/closed valve position
indicator mounted at the end of the switch box axis, at the top of the cover. LSB's include a stainless steel
linkage kit for direct mounting to BVA300 series actuators.
Available limit switch boxes:
LSB31 Contact switches (2 x SPDT)
LSB71
Contact switches (2 x SPDT)
Explosion proof Exd IIC T6
LSB32 10 - 30 Vdc 3-wire proximity sensors (2 x Autonics PS17-5DNU, NPN)
LSB72
10 - 30 Vdc 3-wire proximity sensors (2 x Autonics PS17-5DNU, NPN)
Explosion proof Exd IIC T6
LSB33 8 Vdc 2-wire proximity sensors (2 x P&F NJ2-V3-N; intrinsically safe)
LSB73
8 Vdc 2-wire proximity sensors (2 x P&F NJ2-V3-N; intrinsically safe)
Explosion proof Exd IIC T6
LSB34 5 - 60 Vdc 2-wire proximity sensors (2 x P&F NBB3-V3-Z4)
LSB74
5 - 60 Vdc 2-wire proximity sensors (2 x P&F NBB3-V3-Z4)
Explosion proof Exd IIC T6
Note: For further information on this product see Technical Information sheet TI-P372-26.
Fig. 1 LSB31, LSB32, LSB33 and LSB34
Fig. 2 LSB71, LSB72, LSB73 and LSB74
2. General product information