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3TK2828-1AL20

The Siemens 3TK2828-1AL20 is a safety monitoring relay from the SIRIUS 3TK28 series, designed for machine safety applications. It provides reliable monitoring of safety devices such as emergency stop buttons, safety gates, and light curtains, ensuring compliance with SIL 3 (IEC 62061) and PL e (ISO 13849-1) safety standards.

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TEL：400-887-3214
Mail：jilineasyyi@outlook.com
Q Q：615739355
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Key Features & Specifications
1. Safety & Compliance
Safety Level: SIL 3 (IEC 62061), PL e (ISO 13849-1)

Standards: IEC 62061, ISO 13849-1, EN 60204-1

Certifications: CE, UL, TÜV

2. Electrical Parameters
Supply Voltage: 24V DC (19.2–28.8V DC)

Current Consumption: ≤100 mA

Output Relays:

2 Safety Outputs (NO contacts)

Rated Load: 6A / 250V AC

Input Channels:

Dual-channel inputs (for safety devices)

Cross-circuit monitoring for fault detection

3. Mechanical & Mounting
Mounting: DIN Rail (35mm)

Terminals: Screw-type, accepts 0.25–2.5 mm² conductors

Protection Degree: IP20

Operating Temperature: -25°C to +60°C

4. Monitoring & Diagnostics
LED Status Indicators:

Power (green)

Safety circuit status (yellow/red)

Automatic & Manual Reset Options

Fault Memory for troubleshooting

5. Compatibility
Emergency Stop Buttons (dual-channel)

Safety Interlocks & Light Curtains

Compatible with Siemens SIMATIC Safety PLCs

Typical Applications
✔ Machine Safety Systems (presses, robots, conveyors)
✔ Emergency Stop Circuits
✔ Safety Gate Monitoring
✔ Automated Production Lines