Product Description

The Keyence GS-51P5 is a robust power-to-release safety interlock switch designed for safeguarding access points on machinery and equipment. Featuring a locking force of 2,000 N and an alignment tolerance of ±2 mm, it ensures secure door locking and reliable detection. With a mechanical lifespan exceeding 1 million cycles and a response time of 220 ms, it offers durability and quick response. The switch is equipped with PNP transistor outputs and an auxiliary non-safety output, facilitating integration into safety circuits. Its IP65/67 and IP69K ratings, along with a wide operating temperature range of -20°C to +55°C, make it suitable for demanding industrial environments.​

Technical Specifications

• Feature Specification
• Model GS-51P5
• Lock Type Power-to-release type
• Output Type PNP (2 transistor outputs)
• Auxiliary Output 1 non-safety related transistor output (50 mA max.)
• Locking Force Minimum 2,000 N
• Alignment Tolerance ±2 mm
• Mechanical Lifespan Over 1 million cycles (at 1 Hz operation)
• Response Time 220 ms (Lock → Unlock / Unlock → Lock)
• Acceptable Operation Frequency 1 Hz (3 Hz if OSSD operation is in open/close link mode)
• Door Radius Minimum 250 mm
• Cascading Capability Up to 25 units
• Control Output (OSSD) 2 transistor outputs, max 150 mA each, residual voltage max 2.5 V
• Leakage Current Max 0.5 mA
• Power Supply 24 V DC ±20% (Ripple P-P 10% or less, Class 2)
• Power Consumption 3.4 W (temporary increase to 10.5 W during lock control input activation)
• Environmental Protection IP65/67 (IEC60529), IP69K (ISO 20653), NEMA Type 3/4X/12/13
• Operating Temperature -20°C to +55°C (No freezing)
• Storage Temperature -25°C to +70°C (No freezing)
• Operating Humidity 5% to 95% RH
• Vibration Resistance 10 to 55 Hz, Double amplitude 2.0 mm, 5 minutes in each of X, Y, and Z directions
• Shock Resistance 30 G in X, Y, Z directions, 6 times each axis
• Material Main Unit: SUS304, PPS, PBT, PAR, PA66, NBR; Lock: Aluminum alloy, Zinc die cast (Nickel chrome plating); Cable: PVC
• Weight Approximately 560 g