- BRAND: SCHMERSAL
- MODEL: ASH 015L-11U/50X
- LIMIT SWITCH
- WWW.SCHMERSAL.DE
- IEC: 60947-5-1
- IP54
- Ui: 500V
- Uimp: 6KV
- AC=15, Le:4A
- Ue: 400 VAC
- 1057853
- BZ503, M16X1
- MADE IN GERMANY
1. Product Type & Function
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Type: Limit Switch (Precision Switch)
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Function: This is an electromechanical device used to detect the presence or position of a machine part by physical contact. When the actuator lever is moved to a specific position, it triggers an internal snap-action mechanism to open or close an electrical circuit. This signal is used to control machinery (e.g., stop, start, or change a sequence of operations).
2. Key Features & Specifications
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Actuator: Side-mounted Rotary Lever with a Forked End (11U50)
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Side-mounted: The lever pivots on the side of the switch body.
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Rotary Lever: The lever rotates to actuate the switch.
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Forked End (U50): The lever has a “fork” or “yoke” at the end, which allows it to engage with a cam or striker from either the left or right side. This provides a degree of misalignment tolerance and secure engagement.
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Housing Material: Robust, impact-resistant thermoplastic, offering protection against oils and coolants.
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Contact Configuration: 1 NO / 1 NC (One Normally Open + One Normally Closed contact)
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This versatile configuration allows it to be wired for either a “make” or “break” circuit, providing flexibility for different safety and control logic.
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Electrical Rating:
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Rated Operating Current (Ie): 10 A
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Rated Insulation Voltage (Ui): 500 V
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Rated Impulse Withstand Voltage (Uimp): 6 kV
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Suitable for both AC and DC voltages.
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Protection Class:
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IP65 (NEMA 4 & 13 equivalent) when the cable gland is properly installed.
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This means it is dust-tight and protected against water jets from any direction, making it suitable for wash-down environments and dusty industrial settings.
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Mechanical Life: Very high (typically millions of cycles), due to its robust design.
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Termination: Pre-wired Cable (5S3)
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The “X” in the part number and the “5S3” code indicate it comes with a fixed, pre-wired cable for easy installation, eliminating the need for separate conduit entries.
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Safety Standards: Typically conforms to international standards like IEC 60947-5-1.
3. Design & Construction
The ASH 015L series is engineered for durability. The sealed housing protects the internal silver-plated contacts and snap-action mechanism from contaminants. The side-mounted lever with a forked end is designed for reliable operation even in applications with slight vibration or misalignment.
4. Common Applications
This switch is used across a wide range of industries for position sensing and end-of-travel detection, including:
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Machine Tools: Door interlocking, tool changer position, axis limit detection.
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Material Handling: Conveyor system end-stops, palletizer positioning, gate detection.
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Packaging Machinery: Detecting the position of cams, arms, or doors.
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Automated Assembly Lines: Verifying the position of actuators and slides.
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Robotics: End-of-arm tooling position feedback.
5. Why Choose This Switch?
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Reliability: Schmersal is a renowned brand for safety and control components.
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Durability: Built to withstand mechanical stress and harsh industrial environments.
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Versatility: The 1NO/1NC contact block and versatile lever design suit many applications.
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Ease of Installation: The pre-wired cable saves time and ensures a proper seal.
