IDEM
IDEM KLM-Z-4ST Stainless Steel Lockable Switch
The IDEM KLM‑Z‑4ST is a rugged, RFID‐coded safety interlock switch with built‑in guard locking and enhanced machine control features, all in a compact die‑cast housing with a stainless-steel head. It offers Type 4 high-level coding per ISO 14119 and delivers dual solid-state OSSD safety outputs plus two auxiliary outputs for guard and lock state monitoring, enabling seamless integration into high-performance safety architectures (Cat 4 PLe / SIL 3). The solenoid-actuated lock achieves a holding force of 3 000 N (Fzh ≈ 2 307 N), with a 5 mm actuator insertion ensuring reliable engagement. It operates on 24 Vdc (±10 %), draws ≤50 mA control current and up to 500 mA when energising the solenoid, and provides 22 mm openings for optional push-buttons or indicator lamps housed within the main unit. The rotatable stainless-steel head supports up to eight actuator entry positions, will accommodate pressured front or side entry, and offers versions with lid-only, lid-and-side, manual-release, or rear-release configurations, perfect for flexible mounting needs.
The KLM‑Z‑4ST is ideal for machinery with limited space (designed for 50 mm frame rails), requiring secure interlocking and control request functions, such as in robotics cells, automated packaging, or press lines. Its integrated push-button or lamp stations allow operators to request machine readiness or signal statuses directly at the guard locking unit, eliminating the need for separate HMI panels. With IP65 rating, operating temperatures from –25 °C to +40 °C, vibration resistance, and a mechanical lifespan exceeding 2.5 million cycles, it’s built for durability in industrial environments. Enhanced by continuous self-testing of safety outputs and wiring, and LED diagnostics for guard and lock status, faults, and OSSD activity, the KLM‑Z‑4ST ensures efficient maintenance and reduced downtime in high-safety applications.
- Locking force F1Max = 3000N
- PL e/Kat. 4
- Option release escape
- Space for 4 buttons (lamps, switches, e-stop)
- Built-in KLM-Z breaker with RFID coding
Selected variant
Technical data
| Actuator entry positions | 8 |
|---|---|
| Approvals | ISO 13849-1, ISO 14119, EN62061, EN60947-5-1, UL 508 |
| Conduit entry | M20 |
| Head material | Stainless steel 316 |
| Holding force (F1Max) | 3000 N |
| Housing material | Die cast metal |
| Integrated LED indication | Yes |
| IP class | IP65 |
| Mounting | 4 x M5 |
| Operating temperature | -25°C ... +40°C |
|---|---|
| PL | e acc. EN ISO13849-1 |
| Rated insulation voltage | 500V ac |
| Safety category | 4 |
| SIL | 3 acc. IEC62061 |
| Solenoid Voltage | 24V dc |
| Vibration | IEC88-2-6, 10-55Hz + 1Hz |
| Withstand voltage | 1000V ac |
Product description
The IDEM KLM‑Z‑4ST is a rugged, RFID‐coded safety interlock switch with built‑in guard locking and enhanced machine control features, all in a compact die‑cast housing with a stainless-steel head. It offers Type 4 high-level coding per ISO 14119 and delivers dual solid-state OSSD safety outputs plus two auxiliary outputs for guard and lock state monitoring, enabling seamless integration into high-performance safety architectures (Cat 4 PLe / SIL 3). The solenoid-actuated lock achieves a holding force of 3 000 N (Fzh ≈ 2 307 N), with a 5 mm actuator insertion ensuring reliable engagement. It operates on 24 Vdc (±10 %), draws ≤50 mA control current and up to 500 mA when energising the solenoid, and provides 22 mm openings for optional push-buttons or indicator lamps housed within the main unit. The rotatable stainless-steel head supports up to eight actuator entry positions, will accommodate pressured front or side entry, and offers versions with lid-only, lid-and-side, manual-release, or rear-release configurations, perfect for flexible mounting needs.
The KLM‑Z‑4ST is ideal for machinery with limited space (designed for 50 mm frame rails), requiring secure interlocking and control request functions, such as in robotics cells, automated packaging, or press lines. Its integrated push-button or lamp stations allow operators to request machine readiness or signal statuses directly at the guard locking unit, eliminating the need for separate HMI panels. With IP65 rating, operating temperatures from –25 °C to +40 °C, vibration resistance, and a mechanical lifespan exceeding 2.5 million cycles, it’s built for durability in industrial environments. Enhanced by continuous self-testing of safety outputs and wiring, and LED diagnostics for guard and lock status, faults, and OSSD activity, the KLM‑Z‑4ST ensures efficient maintenance and reduced downtime in high-safety applications.
Related
Fuse links for semiconductor protection
Ultra fast-acting fuse links engineered specifically to shield delicate semiconductor devices.
Signal Lights For You
New signal lights from Auer Signal are now available! The first products to be launched in this series are the Smart Dot 50 in the Basic and Standard versions, as well as the Smart Indicator 50 in the Basic version.
Optimise your production line with sensors
Optimise your production line with encoders, inclinometers, displays and slip rings
The Smallest Safety Laser Scanner on the market by Hokuyo
Designed for high-performance safety applications such as material handling, conveyors, robotics, and system integration. OEM Automatic is excited to announce its latest supplier partnership with Hokuyo
Every angle covered with 90 degree cable entry system
Engineers and technicians are seeking solutions that streamline assembly whilst maintaining high levels of protection and flexibility. KDS-SR90 angled screw frames and inlays bring a new level of efficiency to cable routing with a unique 90° entry design.
Control Box Assembly for Industrial Electricity Metering - A case study
Here, our customer requires control boxes for electricity metering systems. We leveraged our expertise to deliver easy-to-install, ready-to-use assemblies. We look forward to creating more of these bespoke control boxes for our customer.
