AUX-C T4-T5-T6 3Q 1SY 24 Vdc

Why Choose the ABB 1SDA054915R1 AUX-C T4-T5-T6 Auxiliary Contact?

The ABB 1SDA054915R1, also known as the AUX-C T4-T5-T6 3Q 1SY 24 Vdc, is a genuine ABB auxiliary contact accessory designed for use with compatible ABB SACE Tmax T moulded case circuit breakers. It provides additional signalling contacts for monitoring breaker position and trip status in industrial electrical distribution, protection and control panel applications.

This ABB AUX-C accessory includes 3 changeover contacts for open-closed indication plus 1 changeover contact for tripped indication. The wired 24 V DC configuration makes it suitable for control circuits where breaker status feedback is required for automation, monitoring, alarm or interlocking systems.

Designed for ABB Tmax T4, T5 and T6 circuit breakers, the 1SDA054915R1 helps panel builders and maintenance engineers integrate reliable auxiliary status information into low-voltage switchgear assemblies. Its compact accessory format supports straightforward installation in protected electrical panels and distribution equipment.

Key Advantages

• Genuine ABB auxiliary contact accessory for SACE Tmax T circuit breakers.
• Provides 3 changeover contacts for open-closed position indication.
• Includes 1 changeover contact for tripped indication.
• 24 V DC wired configuration for compatible control and signalling circuits.
• Suitable for ABB Tmax T4, T5 and T6 moulded case circuit breakers.
• Supports remote monitoring, alarm signalling and control panel interlocking.

Key Features

• ABB SACE Tmax T accessory range.
• AUX-C T4-T5-T6 3Q 1SY 24 Vdc accessory type.
• 4 changeover auxiliary contacts in total.
• 3Q + 1SY contact arrangement.
• Open-closed and tripped status indication.
• Wired 24 V DC signalling configuration.
• Loose or configurable accessory format.
• Designed for low-voltage circuit breaker applications.

Technical Specifications

• Manufacturer: ABB
• Series: SACE Tmax T Accessories
• Model: AUX-C T4-T5-T6 3Q 1SY 24 Vdc
• Product ID: 1SDA054915R1
• Product type: Circuit breaker auxiliary contact accessory
• Product main type: Accessories for Tmax T
• Suitable for: ABB Tmax T4, T5 and T6
• Suitable product class: SACE Tmax T
• Auxiliary contact configuration: 3 changeover contacts open-closed + 1 changeover tripped indication
• Number of auxiliary contacts CO / SPDT: 4
• Control / signalling voltage: 24 V DC
• Technical configuration type: Loose or configurable
• Order code US and Canada: KT5AS3-AU
• Standards: IEC
• Customs tariff number: 85389099
• Product net weight: 0.225 kg
• Package dimensions (W × H × D): approx. 110 × 60 × 140 mm
• Package gross weight: approx. 0.237 kg
• EAN: 8015644560447

Reliable Status Signalling for Tmax Circuit Breakers

Auxiliary contact accessories such as the ABB AUX-C T4-T5-T6 are used to provide electrical status feedback from circuit breakers to control systems. This allows the breaker’s open, closed or tripped condition to be monitored remotely by PLCs, alarm panels, building management systems or switchgear supervision equipment.

The ABB 1SDA054915R1 is designed to support dependable signalling in low-voltage distribution assemblies. By adding multiple changeover contacts to compatible Tmax T circuit breakers, it helps improve system visibility, fault reporting and operational control in industrial and commercial electrical installations.

Typical Applications

• ABB SACE Tmax T circuit breaker assemblies.
• Low-voltage switchgear and distribution panels.
• Breaker open, closed and tripped status indication.
• Control panel signalling and alarm circuits.
• PLC and automation system feedback circuits.
• Industrial maintenance, retrofit and panel building applications.

Trusted by Panel Builders and Electrical Engineers

ABB SACE Tmax accessories are widely used by panel builders, electrical engineers and maintenance professionals to improve circuit breaker monitoring, control panel signalling and low-voltage switchgear reliability.