3TK2827-1BB40_SIEMENS_PRODUCT_吉林易择科技技术发展有限公司

The Siemens 3TK2827-1BB40 is a modular safety relay designed for fail-safe monitoring of emergency stop circuits, safety gates, and other safety-related functions in industrial automation systems. It complies with international safety standards for machinery protection.

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DESCRIBE

Key Specifications
Parameter Specification
Product Type Safety Relay (1 NO contact)
Safety Standards ISO 13849-1 (PL e), IEC 62061 (SIL 3)
Rated Voltage 24V DC/230V AC
Contact Configuration 1 NO (Normally Open) safety contact
Contact Rating 6A @ 230V AC / 5A @ 24V DC
Operating Temperature -25°C to +60°C
Response Time ≤20ms
Protection Class IP20
Dimensions (W×H×D) 22.5 × 99 × 114 mm
Mounting DIN rail (35mm)
Certifications CE, UL, cULus, TÜV
Technical Features
Dual-channel monitoring for fault detection

Manual/automatic reset options

LED status indicators (Power, Fault, Reset)

Cross-circuit detection for wiring faults

Forced-guided contacts (EN 50205)

Modular design for expandability

Compatible with safety PLCs (e.g., SIMATIC F-series)

Typical Applications
Emergency stop (E-stop) circuits

Safety gate monitoring

Light curtain interlocking

Two-hand control systems

Press and machinery safety systems

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