Balluff BHS001L BES 516-300-S135-S4-D

Inductive Sensor

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The Balluff BHS001L (BES 516-300-S135-S4-D) is a robust M12 high-pressure inductive sensor designed for the harshest hydraulic environments. With a pressure rating of 500 bar, it is engineered to be installed directly into the pressure zone of hydraulic cylinders for reliable end-of-stroke detection.

This model features a standard 78 mm long housing (S135 variant), a PNP Normally Open (NO) output, and a precise 1.5 mm sensing range. Its stainless steel construction and IP68 rating ensure long-term durability against oil, coolants, and mechanical shock.

BHS001L Datasheet:

• Dimensions: M12x1
• Sensing distance, mm: 1.5
• Output Options: P-N-P, NO
• Default standard: IEC 60947-5-2
• Product Category: Object Detection
• Special properties: high pressure resistance
• Built-in short circuit protection: yes
• Built-in reverse polarity protection: yes
• Connection type: Plug connector
• Electr. version: DC, constant voltage
• Connector type: M12x1-S04
• Depth: 78.0 mm
• Housing material: 1.4104
• Guaranteed response range Sa: 1.20 mm
• Output type: PNP
• Switching function: NO
• Protection: IP68

Key Features & Advantages

• 500 Bar Resistance: Specifically built to withstand the extreme pressure peaks found in hydraulic actuators and cylinders.
• "S135" Form Factor: Features the standard 78mm housing length, making it a drop-in replacement for many legacy hydraulic sensors.
• Leak-Proof Design: Utilizes a specialized sealing ring (Part no. 636594) and support ring to prevent oil leakage even under dynamic stress.
• Durable Materials: The 1.4104 stainless steel body and chemically resistant epoxy face protect against corrosion from hydraulic fluids.

Application Areas

• Hydraulic Cylinders: End-position sensing (cushioning monitoring).
• Valve Control: Monitoring spool positions in high-pressure valves.
• Heavy Machinery: Earthmoving equipment, injection molding machines, and hydraulic presses.

Cross-Reference Info

• Replacement for: Older Balluff M12 high-pressure sensors with 78mm housing length.
• Accessory Note: Requires correct sealing ring (usually included or sold as kit) for proper pressure sealing.