SCB-04 – Safe Timer Control with 2 Relay Contacts and 2 Semiconductor Outputs

The SCB-04 is a versatile and safe time control unit specifically designed for safety applications. In the event of a hazard, it enables the fast and secure shutdown of machines and systems. With 2 secure relay contacts and 2 secure semiconductor outputs, the SCB-04 provides a flexible solution for controlling safety functions.

Thanks to the ability to switch outputs as delay-on, delay-off, or non-delayed depending on the configuration, the SCB-04 can be adapted to various application requirements. Time control is configured using a push/rotary button directly on the device. The integrated display allows user-friendly and tamper-proof time parameterization.

This compact device replaces outdated pneumatic time relays and simplifies the setup of modern safety systems.

Key Features:

• 2 secure relay contacts and 2 secure semiconductor outputs
• Delay-on, delay-off, or non-delayed switching
• Simple time parameterization via push/rotary buttons and display
• Compact design for easy integration into control cabinets
• Versatile applications in emergency stop systems, safety gate monitoring, and firing systems

Technical Data:

Property: SCB-04

Safety Functions:

• Emergency stop monitoring
• Sliding safety door monitoring
• Light curtain monitoring
• Interlocks
• Continuous operation of firing systems
• Stop category 0/1

Certifications:

• EN ISO 13849-1:2015
• EN 50156-1:2015
• IEC 62061:2005 + AC: 2010 + A1:2013 + A2:2015
• IEC 61508 Parts 1-7:2010
• IEC 61511-1:2016
• EN 746-2:2010

Approvals:

• CE, TÜV, cULus

Power Supply:

• UB: DC 24 V (+ 10 % / - 15 %)

Safe Outputs:

• Number: 4 (2 relay contacts and 2 semiconductor outputs)
• Switching capacity of relay contacts: AC-15: 3 A / 250 V; DC-13: 2 A / 24 V
• Switching capacity of semiconductor outputs: UB / 500 mA; PNP; short-circuit proof

Signal Outputs:

• Number of semiconductor signal outputs: 2
• Switching capacity per signal output:
- C1: UB / 500 mA; PNP; short-circuit proof
- C2: UB / 50 mA; PNP; short-circuit proof


Time Ranges:

• 0 - 99 s (SCB-04)
• 0 - 99 min (SCB-04m)
• 0 - 99 h (SCB-04h)

Start Behavior:

• Automatic start or manual, monitored start

Safety Level:

• PL e, Category 4, SILCL 3 (EN ISO 13849-1, IEC 62061)

Dimensions:

• 22.5 x 99 x 118 mm

Ordering Information:

• SCB-04 incl. screw terminal:
- Part no. 474460 (0 - 99 s)
- Part no. 474461 (0 - 99 min)
- Part no. 474462 (0 - 99 h)