Limit Switch, MS40 Series (NAMUR), MS40‑NAMUR, KROHNE S.A.S.
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Description
NAMUR version of the MS40 Ex ia limit switch. Range: Detects float position. Process connection: Attaches to BM26A measuring chamber. Output: NAMUR output: Umax 13 V dc, Ioff 0.0012 A, Ion 0.0021 A; intrinsically‑safe values: Ui = 24 V, Ii = 0.1 A, Pi = 0.21 W, Ci = 100 nF, Li = 0 μH (with cable option Li = 16 μH). Electrical: Terminal compartment same as MS40 Ex ia. Certifications: IECEx Ex ia IIC T6…T1 Ga/Gb. Construction: Ambient temperature –40 to +80 °C, service temperature –40 to +120 °C. Materials: Not specified. Options: None.
Possible Applications
This limit switch is deployed primarily in the chemical, petrochemical, and oil and gas sectors for continuous level monitoring of aggressive or hazardous liquids. It mounts directly onto bypass level indicators such as the BM26A measuring chamber to track magnetic float positions without physical penetration of the pressure boundary. Because of its intrinsic safety rating, it is ideally suited for integration into explosive atmospheres in tank farms, distillation columns, and reactor vessels where flammable gases or volatile organic compounds are present. Plant operators rely on this instrument to provide precise point-level switching signals to safety instrumented systems and programmable logic controllers in potentially explosive process areas.
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Specifications
| Category | Cables & Electrical |
| Product ID | 7610510910-2337 |
| Manufacturer | KROHNE |