ОПИСАНИЕ ПРОДУКТА
SIEMENS 3SK1112-2BB40 - Safety Relay Basic Unit
The SIEMENS 3SK1112-2BB40 is a SIRIUS 3SK1 series safety relay, engineered for monitoring safety-related circuits in industrial automation. This basic unit provides essential safety functionality for emergency stop buttons, safety gates, and light curtains, integrating into control systems via hardwired relay outputs. It ensures compliance with critical safety standards by safely interrupting hazardous machine operations upon detection of a safety violation.
Technical Specifications:
- SERIES/FAMILY: SIRIUS 3SK1
- COMPONENT TYPE: Safety Relay Basic Unit
- ELECTRICAL SPECS:
- NOMINAL OPERATING VOLTAGE: 24V DC
- INPUT TYPE: 2-channel, suitable for NO/NC contacts or OSSD outputs
- OUTPUTS: 1 NO (Normally Open) enabling contact, 2 NC (Normally Closed) auxiliary contacts
- RATED OPERATIONAL CURRENT (ENABLING CONTACTS): 5A at 230VAC (AC-15), 3A at 24VDC (DC-13)
- RATED OPERATIONAL CURRENT (AUXILIARY CONTACTS): 3A at 230VAC (AC-15), 1A at 24VDC (DC-13)
- POWER CONSUMPTION: Approximately 2.5W
- MECHANICAL/PHYSICAL:
- FORM FACTOR: Compact DIN rail mountable enclosure
- TERMINALS: Screw terminals
- DIMENSIONS (W x H x D): Typically 22.5 mm x 100 mm x 121.6 mm
- INTERFACE/CONTROL:
- INPUTS: Hardwired for safety sensors (e.g., E-STOP, safety gate switches, light curtains)
- OUTPUTS: Hardwired relay contacts for control circuit integration
- RESET FUNCTION: Automatic or manual reset capability (configurable via wiring)
- ENVIRONMENTAL/MOUNTING:
- IP RATING: IP20 (terminals), IP40 (enclosure)
- MOUNTING: DIN rail 35mm
- OPERATING TEMPERATURE RANGE: -25 to +60 degrees C
- COMPATIBILITY/APPLICATION:
- APPLICATIONS: Emergency stop circuits, safety gate monitoring, light curtain monitoring, two-hand control, general safety functions in machinery and plant engineering.
- SAFETY STANDARDS: Conforms to IEC 60947-5-1, IEC 61508 (SIL 3), ISO 13849-1 (Performance Level PL e, Category 4).
