Product Short Description
Product Name: PNOZ X1 / PNOZmulti-class Safety Relay (discontinued spare)
Product Introduction: The 301120 is a legacy safety relay base unit from the PNOZ family, used to monitor emergency stop buttons, safety gate switches and light curtains in machinery safety circuits. It is officially discontinued; modern replacements include the PNOZ X2.1P (772120) or the configurable PNOZmulti 2 controller.
Description
Technical Specifications:
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Supply Voltage: 24 VDC (19.2–30 VDC depending on variant)
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Safety Outputs: 2 N/C force-guided relay contacts
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Auxiliary Output: 1 signaling contact
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Safety Inputs: 2 inputs (S11/S12, S21/S22) for E-stop chain or guard monitoring
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Response Time: ≤ 20 ms
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Housing Width: 22.5 mm DIN-rail mountable
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Protection Class: IP20
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Operating Temperature: 0°C to +55°C
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Standards Compliance: EN 60204-1, EN ISO 13849-1 (Cat. 3, PL d), IEC 62061 (SIL 2 / SIL CL 3 depending on variant)
Functional Features:
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Electromechanical, non-programmable safety logic
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Force-guided contacts for reliable N/C operation
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Basic LED indication for power, channel status, reset
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DIN-rail mounting
Application Scenarios: Legacy packaging machines, presses, robotic cells, material handling systems installed between the late 1990s and early 2010s.
Installation & Notes: Must be wired exactly per original schematic; the successor PNOZ X2.1P is not pin-for-pin compatible. Periodic functional test via the built-in test button is required. Inspect for contact welding, coil burnout and loose terminals. Store spares in dry, static-safe conditions.
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