SICK i110-E0233 Safety Locking Switch – Power-to-Lock Machine Guard Interlock

The SICK i110-E0233 safety locking switch is an electro-mechanical, power-to-lock interlock designed to keep machine guards securely closed until hazardous movement has fully stopped. It addresses a critical safety challenge in industrial machinery by preventing unintended access to dangerous zones during operation. With a high locking force suitable for heavy guard doors and a compact, industrial-grade design, the i110-E0233 supports reliable personnel protection and compliance with modern machine safety standards. Its sealed construction and robust materials make it suitable for demanding factory environments where consistent safety performance is essential.

In practical machine safety applications, the i110-E0233 provides dependable locking and clear status monitoring for safety control systems. The power-to-lock design ensures the guard remains locked during normal operation, reducing the risk of operator exposure to moving or hazardous parts. Positive-action monitoring contacts improve fault detection when integrated with external safety logic, supporting safer machine stop and restart sequences. Its long mechanical service life and resistance to dust and moisture help reduce unplanned downtime, making it well suited for packaging lines, automated assembly cells, and industrial equipment where safety, durability, and operational continuity are equally important.

Why SICK i110-E0233?
The SICK i110-E0233 is chosen when machine safety must be both physically strong and operationally intelligent. Its power-to-lock mechanism delivers a firm, controlled hold on safety doors, while electro-mechanical monitoring provides trustworthy feedback to the safety system. Designed for industrial realities, it combines high locking force, long mechanical life, and environmental resistance, making it a dependable choice for manufacturers who value consistent safety performance without unnecessary complexity.

What problem does it solve?
The i110-E0233 solves the risk of premature or unsafe access to hazardous machine areas. It prevents operators from opening guards while dangerous motion, pressure, or energy is still present. By enforcing controlled access and enabling reliable lock-status monitoring, it reduces the chance of accidents, machine damage, and compliance issues, supporting safer workflows in automated and high-risk industrial environments.

Key Features & Specifications – SICK i110-E0233: 6051597

Feature	Details	Benefit
Safety Locking Device Type	Electro-mechanical safety locking switch	Ensures reliable physical locking for machine guards without reliance on electronics alone
Locking Principle	Power-to-lock	Maintains locked state during normal operation, improving operator protection
Locking Force (Max)	Up to 2,500 N (EN ISO 14119)	Securely holds heavy or high-stress guard doors in industrial machinery
Lock Monitoring Contacts	2 positive-action N/C contacts	Enables precise monitoring of lock status by the safety controller
Door Monitoring Contact	1 N/C contact	Confirms door position to prevent unsafe machine restart
Actuation Directions	5 possible directions	Provides flexible installation options for different machine layouts
Actuation Frequency	Up to 1,200 operations per hour	Suitable for high-duty-cycle automated production environments
Mechanical Service Life	Up to 1 million switching cycles	Reduces maintenance needs and supports long-term reliability
Housing Material	Glass-fiber reinforced thermoplastic	High resistance to impact, vibration, and industrial wear
Actuator Head Material	Metal	Improves durability and alignment accuracy during repeated use
Environmental Protection	IP67-rated enclosure	Reliable operation in dusty, wet, or washdown environments
Operating Temperature Range	–20 °C to +55 °C	Stable performance across a wide range of industrial conditions
Electrical Rating	AC-15 / DC-13, up to 4 A	Compatible with common industrial control circuits
Power Consumption	≤ 8 W	Energy-efficient operation within safety systems
Compliance & Approvals	CE, UKCA, cULus, RoHS	Supports global machine safety and regulatory compliance

Commercial Information – SICK i110-E0233 (Article No. 6051597)

Commercial Data	Details
Weight	0.522 kg
Country of Origin	Germany

The Applications

1. Securing Robotic Welding Cells in Automotive Production

In automotive welding cells, industrial robots operate with high speed, heat, and force, creating a hazardous environment if accessed too early. The SICK i110-E0233 is commonly installed on access doors to keep the cell locked while welding operations are active. Its strong mechanical locking force prevents doors from being opened due to vibration or accidental impact. The power-to-lock design ensures the guard remains secured during normal operation, while lock status feedback allows the control system to release access only after motion has stopped, supporting safe and compliant production.

2. Protecting Operators on High-Speed Packaging Machinery

Packaging lines run continuously and require frequent operator interaction for refilling, inspection, or clearing faults. The i110-E0233 is used on safety doors and covers to prevent access while the machine is running at speed. Its electro-mechanical construction handles repeated opening cycles without loss of performance. Lock and door monitoring provide reliable signals to the safety circuit, preventing unintended restarts when guards are open. This allows manufacturers to maintain throughput while ensuring operators are protected during routine intervention tasks.

3. Guard Locking for CNC and Metalworking Equipment

CNC machines expose operators to rotating tools, sharp components, and ejected material during operation. The i110-E0233 is applied to enclosure doors to block access until spindles and moving axes have fully stopped. Its high locking strength keeps doors securely closed even under vibration and cutting forces. The sealed housing supports operation in environments with coolant spray and metal dust. By enforcing controlled access, the device helps reduce injury risk and supports safer maintenance and setup procedures.

4. Access Control on Automated Material Handling Systems

Conveyors, palletizers, and automated transfer systems often require safety gates along long production lines. The i110-E0233 is used to lock these access points during system operation. Its flexible mounting directions simplify installation across varied machine layouts. The power-to-lock mechanism ensures gates remain closed during motion, while status monitoring prevents restart if a gate is open. This approach improves operator safety, reduces unplanned stops, and supports smooth, continuous material flow in automated facilities.

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SICK i110-E0233 Power-to-Lock Safety Interlock Switch

Product Description

SICK i110-E0233 Safety Locking Switch – Power-to-Lock Machine Guard Interlock

Key Features & Specifications – SICK i110-E0233: 6051597

Commercial Information – SICK i110-E0233 (Article No. 6051597)