Power-to-Release Guard Locking
The KEYENCE GS-5 family uses a power-to-release locking arrangement intended for machinery guard applications. Compatible models maintain their guard-locking function according to the specified safety control sequence.
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KEYENCE GS-5 Photoelectric Sensor Compact Industrial Automation Sensor
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PRODUCT DOCUMENTATION
Product Information
Technical specifications, features, applications and purchasing information.
Technical Specifications
| Brand | KEYENCE |
| Model Number Provided | GS-5 |
| Product Category | Safety Interlock Switch |
| Product Family | GS Series |
| Product Identification | GS-5 Identifies the Power-to-Release Locking Family; a Complete Orderable Model Number Requires Additional Characters |
| Locking Type | Power-to-Release, GS-5 Family |
| Guard Monitoring | Actuator Detection and Lock-State Monitoring |
| Reference Rated Supply Voltage | 24 VDC ±20%, Class 2 |
| Reference Locking Force | Minimum 2000 N |
| Reference Lock Alignment Tolerance | ±2 mm |
| Reference Mechanical Life | At Least 1 Million Cycles Under Specified Test Conditions |
| Safety Outputs | Two OSSD Transistor Outputs on Documented GS-5 Models |
| Output Configuration | PNP or NPN Depending on Full Model Number |
| Maximum OSSD Load Current | 100 mA or 150 mA, Depending on Model |
| Auxiliary Output | Non-Safety Transistor Output; Quantity Depends on Model |
| Reference Maximum Cascade Quantity | 25 Units, Subject to Compatible System Configuration |
| Reference Power Consumption | 3.4 W Nominal; Temporary Increase During Lock Control |
| Reference Protection Ratings | IP65/IP67 and IP69K Under Specified Installation Conditions |
| Reference Operating Temperature | -20 to +55°C, Without Freezing |
| Reference Operating Humidity | 5% to 95% RH |
| Applicable Safety Standards | IEC 61508, IEC 62061, EN ISO 13849-1 and EN ISO 14119, According to Model and System Configuration |
| Reference Safety Classification | Type 4 Interlocking Device Under EN ISO 14119 |
| Documented Complete Model Examples | GS-51P5, GS-51N5, GS-51P10, GS-51N10, GS-51PC and GS-53PC |
| Cable and Connector | Depends on Complete Model: Pre-Wired Cable or M12 Connector |
| Ordering Verification | Confirm Complete Model Number, Output Type, Cable Length, Connection and Actuator Requirements |
| Manufacturer Reference | KEYENCE GS Series Safety Interlock Switches Technical Specifications |
Key Features
Minimum 2000 N Locking Force
Documented GS-5 locking models provide a minimum locking force of 2000 N, with an allowable lock alignment tolerance of ±2 mm under specified installation conditions.
Dual OSSD Safety Outputs
GS-5 safety interlock switches use two transistor safety outputs for integration with appropriately designed safety controllers. PNP/NPN selection and current ratings depend on the complete part number.
24 VDC Industrial Supply
The documented locking models operate from a 24 VDC Class 2 supply with ±20% tolerance. The electrical interface and wiring must be checked against the exact model designation.
Industrial Enclosure Protection
The GS series is specified with IP65, IP67 and IP69K enclosure ratings under manufacturer-defined conditions, supporting protected machinery guard installations in demanding industrial environments.
Cascadable Safety Architecture
Compatible GS-5 locking switches can be cascaded in safety control systems, with KEYENCE listing up to 25 units subject to the applicable wiring and safety configuration requirements.
Applications
- Industrial machine guard door locking
- Robotic cell access gate interlocking
- Automated assembly equipment guarding
- Packaging machinery safety doors
- Industrial manufacturing safety enclosures
- Production equipment protective covers
- Safety PLC and controller integration
- Maintenance of KEYENCE GS locking interlock systems
Purchase Information
We support online purchase of the KEYENCE GS-5 Safety Interlock Switch. If you need to make bulk purchases and inquire about other products, please contact our team to inform us of your purchase requirements. We will provide you with information such as quantity quotations, delivery dates, and transportation methods.
Frequently Asked Questions
What is the KEYENCE GS-5?
GS-5 identifies the power-to-release locking branch of the KEYENCE GS series safety interlock switches. It is not sufficient by itself to identify an exact orderable model.
Is GS-5 a complete manufacturer part number?
No complete standalone GS-5 model was identified in the KEYENCE product lineup. Documented variants include GS-51P5, GS-51N5, GS-51P10, GS-51N10, GS-51PC and GS-53PC.
What does power-to-release mean?
It describes a locking arrangement where electrical control is used to release the guard lock. Correct unlocking and machine stopping sequences must be established through a validated safety system.
What supply voltage does the GS-5 family use?
The documented GS-5 locking switches use a nominal 24 VDC Class 2 supply with a tolerance of ±20%.
What is the locking force?
The published locking force is at least 2000 N for the documented GS-5 locking models.
Does GS-5 use PNP or NPN outputs?
Both output types exist in the family. The P or N designation in the complete model number determines the output configuration.
Does the switch provide OSSD safety outputs?
Yes. The documented GS-5 models provide two transistor OSSD outputs for safety-related control circuits. Their maximum load current depends on the exact variant.
Can several GS-5 switches be connected together?
Compatible GS locking switches support cascading, with a published limit of up to 25 units. The actual arrangement must follow KEYENCE system design instructions.
What is the environmental protection rating?
KEYENCE lists IP65, IP67 and IP69K ratings for the GS locking family, subject to installation and testing conditions.
What is the difference between GS-5 and GS-7?
The GS-5 family uses power-to-release locking, whereas the GS-7 family uses power-to-lock operation. These different locking principles require separate safety assessments.
Does GS-5 include a cable or M12 connector?
Connection details vary by exact model. Some variants have fixed cables, while others use an M12 connector. The abbreviation GS-5 does not identify the required connection.
What should be confirmed before ordering?
Confirm the complete KEYENCE model number shown on the product label, power-to-release locking type, PNP or NPN output, cable or connector, actuator compatibility, 24 VDC supply, safety controller integration and machine risk-assessment requirements.
Need help confirming a model?
Send us your part number and technical requirements.
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