Keyence GS-53PC Advanced Function Safety Lock

The Keyence GS-53PC is a power-to-release safety lock designed for high-security applications in industrial safety and machine guarding systems. With 2,000 N locking force, IP69K-rated enclosure, and advanced cascading capabilities, this safety lock provides maximum protection in hazardous work environments.

Technical Specifications

Manufacturer: Keyence
Product Series: GS Series
Model: GS53PC
Type: Advanced function safety lock, power-to-release type
Locking Force (Fzh): Minimum 2,000 N
Alignment Tolerance of Lock: ±2 mm (±0.08″)
Mechanical Life-Span: 1 million cycles or more (with door operation speed of 1 m/s)
Acceptable Operation Frequency: 1 Hz (up to 3 Hz in specific OSSD modes)
Door Radius: Minimum 250 mm (9.84″)
Auxiliary Release: Front, back
Cascading: Up to 25 units

Response Time

• Lock → Unlock: 220 ms
• Unlock → Lock: 220 ms (430 ms when locked at the same time actuator is detected)

Control Output (OSSD Output)

• Output Type: Transistor outputs ×2
• Max. Load Current: 150 mA
• Residual Voltage (ON State): Max. 2.5 V (with 5 m cable)
• OFF State Voltage: Max. 2.0 V (with 5 m cable)
• Leakage Current: Max. 0.5 mA
• Max. Capacitive Load: 2.2 µF
• Load Wiring Resistance: Max. 2.5 Ω

AUX (Non-Safety Related Output)

• Output Type: Transistor output
• Number of Outputs: 2
• Max. Load Current: 50 mA
• Residual Voltage (ON State): Max. 2.5 V (with 5 m cable)

External Inputs (Short-Circuit Current)

• Safety Input: Approx. 1.5 mA ×2
• Reset/EDM Input: Approx. 10 mA ×1
• Lock Control Input: Approx. 2.5 mA ×2

GS-53PC Applicable Safety Standards

• EN 61508, IEC 61508 (SIL2/SIL3)
• EN 62061, IEC 62061 (SIL CL2/SIL CL3)
• EN ISO 13849-1: 2015 (PLd, Category 2 / PLe, Category 4)
• EN ISO 14119 (Type 4)
• IEC 60947-5-3, EN 60947-5-3
• UL 61010-1, CAN/CSA-C22.2 No.61010-1

Protection Circuits

• Reverse current protection
• Short-circuit protection
• Surge protection for each output

Power Supply & Consumption

• Voltage: 24 V DC ±20% (Ripple P-P 10% or less, Class 2)
• Power Consumption: 3.4 W (temporarily increases to max. 10.5 W for approx. 0.2 s when lock control input is turned ON)

Environmental Resistance

• Enclosure Rating: IP65/67 (IEC60529), IP69K (ISO 20653), TÜV SÜD certified
• Operating Temperature: -20°C to +55°C (-4°F to 131°F) (No freezing)
• Operating Relative Humidity: 5% to 95% RH
• Storage Temperature: -25°C to +70°C (-13°F to 158°F) (No freezing)
• Storage Relative Humidity: 5% to 95% RH

Durability & Resistance

• Vibration Resistance: 10 to 55 Hz, Double amplitude 2.0 mm (0.08″), 5 minutes in each X, Y, and Z directions (IEC 60947-5-3)
• Shock Resistance: 30 G, 6 times per X, Y, and Z directions (IEC 60947-5-3)

Material & Construction

Sensor Main Unit:

• Case: SUS304, PPS, PBT, PAR, PA66, NBR
• Lock: Aluminum alloy, Zinc die-cast (Nickel chrome plating)
• Cable: PVC

Actuator:

• Case: PPS, PBT, NBR
• Lock: Aluminum alloy, SUS303

Weight & Accessories

• Weight: Approx. 380 g
• Included Accessories: Instruction Manual

Key Features & Benefits:

✅ Strong Locking Force: Minimum 2,000 N force ensures secure door locking.

✅ Fast Response Time: Lock/unlock operations complete in just 220 ms.

✅ Industrial-Grade Durability: Withstands shocks up to 30 G and vibrations across all axes.

✅ Comprehensive Safety Compliance: Certified for SIL2/SIL3, PLe, and Category 4 applications.

✅ Versatile Integration: Supports up to 25 cascaded units for large safety networks.

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