Why Choose the ABB SK40002-R Signal Contact?
The ABB SK40002-R is a compact signal contact with two normally closed (2NC) contacts designed for the ABB SMISSLINE TP plug-in system. Identified by ABB order code 2CCF201165R0001, it is intended for right-side mounting on compatible protective devices and provides electrical signalling following a protective-device trip.
Unlike an auxiliary contact that follows the normal switching position of the main contacts, the SK40002-R is designed as a signal contact for electrical trip indication. This makes it suitable for fault signalling, remote alarms and monitoring circuits where the system needs to distinguish a protective trip from normal manual switching.
The SK40002-R incorporates two normally closed contacts and includes connection pins for the LA/LB auxiliary busbars of the SMISSLINE TP system. With a compact 0.5-module format, 6 A rated current and 230/400 V AC rated operational voltage, it provides a space-efficient signalling solution for compatible ABB modular protection assemblies.
Key Advantages
- Provides two normally closed signal contacts for fault and trip indication.
- Designed specifically for right-side mounting.
- Signal contact operation enables protective trips to be distinguished from normal switching.
- Includes contacting for the LA/LB SMISSLINE TP auxiliary busbars.
- Compact 0.5-module construction conserves distribution-board space.
- 6 A rated current for signalling and monitoring circuits.
- Designed as part of ABB's coordinated SMISSLINE TP accessory system.
Key Features
- ABB SMISSLINE TP signal contact.
- 2NC contact configuration.
- Right-side mounting arrangement.
- Designed for compatible S400 MCB, F404/F402 RCD and IS404 devices.
- Includes connection pins for LA/LB auxiliary busbars.
- 6 A rated current.
- 230/400 V AC rated operational voltage.
- Screw connection for external signalling conductors.
- 0.5-module installation format.
- Complies with IEC/EN 60947-5-1.
Reliable Trip and Fault Signalling for SMISSLINE TP
Signal contacts are used where a control or monitoring system needs to identify operation caused by an electrical protective trip. The ABB SK40002-R operates in response to the trip mechanism of the associated compatible device, enabling fault information to be transmitted to remote indicators, alarm systems or supervisory controls.
Its 2NC contact arrangement provides two normally closed signalling paths, while the integrated LA/LB connection capability supports coordinated auxiliary power distribution through the SMISSLINE TP system. The compact half-module construction allows this functionality to be added without unnecessarily increasing panel width.
Typical Applications
- ABB SMISSLINE TP plug-in distribution systems.
- Protective-device trip indication.
- Remote fault and alarm signalling.
- Building-management and automation systems.
- Industrial control and monitoring circuits.
- Commercial distribution boards requiring electrical trip-status feedback.