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3TK2842-2BB42

The Siemens 3TK2842-2BB42 is a high-performance safety relay module designed for critical safety applications in industrial automation. With dual safety contacts and SIL 3/PL e certification, it ensures reliable protection for personnel and equipment in demanding environments.

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TEL：400-887-3214
Mail：jilineasyyi@outlook.com
Q Q：615739355
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Key Specifications
Parameter Specification
Product Type Dual-Channel Safety Relay
Safety Standards ISO 13849-1 (PL e), IEC 62061 (SIL 3)
Input Voltage 24V DC (±10%) / 230V AC (±10%)
Contact Configuration 2 NO (Normally Open) safety contacts
Contact Rating 6A @ 230V AC / 5A @ 24V DC
Response Time ≤15ms
Operating Temperature -25°C to +60°C
Mechanical Life 10,000,000 operations
Dimensions 45 × 99 × 114 mm (W×H×D)
Mounting 35mm DIN rail
Protection Class IP20
Certifications CE, UL, cULus, TÜV
Technical Features
Dual-channel monitoring with cross-circuit detection

Configurable reset modes (manual/automatic/monitored)

LED diagnostics (power, fault, channel status)

Forced-guided contacts (EN 50205 compliant)

Modular expansion with other 3TK28 safety relays

Integrated self-monitoring for fault detection

Typical Applications
Emergency stop (E-stop) circuits

Safety gate and interlock monitoring

Light curtain/area scanner interfaces

Two-hand control systems

Presses, robots, and automated machinery