Siemens 3SK1111-2AB30

Siemens 3SK1111-2AB30 | Safety Relay – 2NO + 1NC Contacts, 24V DC, Category 4, SIL 3, Screw Terminals, IP20

Overview

The Siemens 3SK1111-2AB30 is a SIRIUS safety relay designed for monitoring safety functions such as emergency stop, protective door switches, and light curtains. It features two normally open (2NO) safety contacts and one normally closed (1NC) signaling contact, supporting Category 4, SIL 3, and PL e safety levels. Powered by 24V DC, this unit is DIN-rail mountable and offers reliable protection in industrial environments.

Key Features

• Contact Configuration: 2 NO + 1 NC

• Operating Voltage: 24V DC

• Terminals: Screw-type for secure connections

• Safety Ratings: Category 4, SIL 3, PL e

• Input Type: Single- or dual-channel input

• Diagnostics: LED indicators for channel status

• Mounting: DIN rail

• Protection Rating: IP20 (inside enclosure)

Technical Specifications

• Part Number: 3SK1111-2AB30

• Series: SIRIUS 3SK1

• Control Circuit Type: Manual or automatic reset

• Response Time: < 30 ms

• Electrical Life: Up to 100,000 operations (resistive load)

• Mechanical Life: Up to 10 million operations

• Operating Temperature Range: -25°C to +55°C

• Dimensions (W x H x D): Approx. 22.5 x 100 x 120 mm

• Weight: Approx. 160 g

• Standards Compliance: EN ISO 13849-1, IEC 62061, EN 60947-5-1

• Certifications: CE, UL, cULus, TÜV

Applications

• Emergency stop circuit monitoring

• Safety gate and interlock control

• Light curtain or two-hand control circuits

• Small and medium-sized safety applications

Why Choose the 3SK1111-2AB30?

• Compact and Modular: Easy to install in control cabinets

• Comprehensive Safety Compliance: Meets high-level safety regulations

• Flexible Wiring: Supports both single- and dual-channel input modes

• High Reliability: Durable components ensure consistent performance

• Clear Diagnostics: LED indicators simplify troubleshooting

Order Now

The Siemens 3SK1111-2AB30 safety relay is available and ready for international shipping.