Why Choose the ABB SK40020-R Auxiliary Signal Contact?
The ABB SK40020-R is a right-side signal contact with two normally open (2NO) contacts for compatible devices in the ABB SMISSLINE TP plug-in system. Supplied under ABB order code 2CCF201163R0001, it provides dedicated signalling contacts for monitoring the trip status of compatible protective and switching devices.
Designed for right-side mounting, the SK40020-R is compatible with designated ABB S400 miniature circuit breakers, F404/F402 residual-current circuit breakers and IS404 switch disconnectors. Unlike a conventional auxiliary switch used primarily to indicate the switching position, a signal contact is intended for signalling when the associated protective device has operated.
The SK40020-R provides 2NO contacts in a compact 0.5-module format. Each unit weighs approximately 40 g and ABB supplies the product in packaging units of 10 pieces, making it suitable for professional distribution-board and control-panel installations requiring multiple status-signalling points.
Key Advantages
- 2NO signal contact configuration for status and trip signalling.
- Purpose-designed for right-side mounting on compatible ABB devices.
- Compatible with designated S400, F404/F402 and IS404 equipment.
- Compact 0.5-module format minimises additional panel space.
- Provides two normally open contacts for integration with external signalling circuits.
- Genuine ABB accessory engineered for the SMISSLINE TP modular distribution platform.
Key Features
- ABB SMISSLINE TP signal contact.
- 2 normally open (2NO) contacts.
- Right-side mounting configuration.
- Compatible with designated S400 miniature circuit breakers.
- Compatible with designated F404/F402 residual-current circuit breakers.
- Compatible with designated IS404 switch disconnectors.
- 0.5-module installation width.
- Approximate unit weight of 40 g.
- Supplied in a 10-piece packaging unit.
Signal Monitoring for SMISSLINE TP
Signal contacts extend compatible SMISSLINE TP devices with electrical contacts that can be incorporated into external monitoring and indication circuits. The SK40020-R mounts on the right side of the associated device and provides two normally open contacts, allowing status information to be communicated to suitable external equipment.
This functionality is particularly useful in distribution systems where operation of a protective device needs to be signalled remotely to indicator circuits, alarm systems, building-management equipment or industrial control systems. The compact 0.5-module construction helps provide this additional signalling capability without occupying excessive distribution-board space.
Typical Applications
- ABB SMISSLINE TP modular distribution systems.
- Trip and status signalling from compatible S400 miniature circuit breakers.
- Remote signalling from compatible F404/F402 residual-current circuit breakers.
- Signal contact applications with compatible IS404 switch disconnectors.
- Building-management and electrical monitoring systems.
- Industrial control and distribution panels requiring remote device-status indication.