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1SDA104821R1 ABB AUE XT5-XT6 F/P 2 Contacts in CH x RHx
ABB 1SDA104821R1 is an AUE assembly with two early changeover microswitch contacts for undervoltage-release control on RHx rotary-handle mechanisms used with fixed and plug-in SACE Tmax XT5 and XT6 circuit breakers.
£68.34
Why Choose the ABB 1SDA104821R1 AUE XT5-XT6 F/P Early Auxiliary Contact?
The ABB 1SDA104821R1 is a genuine AUE early auxiliary contact assembly designed for ABB SACE Tmax XT5 and XT6 moulded-case circuit breakers. Designated AUE XT5-XT6 F/P 2 CONTACTS IN CH x RHx, it incorporates two early microswitch contacts for use with the RHx rotary-handle operating mechanism.
The accessory is specifically designed to provide an early consent signal for an undervoltage release when the rotary handle mechanism is in the closed operating sequence. This allows the auxiliary contacts to operate at the appropriate point in the handle movement, supporting coordinated control of the circuit breaker and its undervoltage-release function.
The 1SDA104821R1 provides two changeover contacts and is intended for fixed and plug-in (F/P) XT5 and XT6 circuit breakers. Its purpose-designed ABB construction makes it suitable for professional switchboards, industrial distribution systems and installations using RHx rotary operating mechanisms.
Key Advantages
- Genuine ABB AUE early auxiliary contact assembly.
- Provides 2 early microswitch contacts.
- Designed for undervoltage-release control.
- Operates with the RHx rotary-handle mechanism.
- Compatible with XT5 and XT6 fixed / plug-in circuit breakers.
- Provides two changeover (SPDT) contacts for control and signalling functions.
Key Features
- ABB SACE Tmax XT accessory range.
- AUE early auxiliary contact type.
- 2 contacts in the closed-handle configuration.
- Designed for RHx rotary-handle operating mechanisms.
- Early microswitch function for undervoltage release.
- Compatible with XT5 and XT6 frame sizes.
- Suitable for fixed and plug-in (F/P) circuit breakers.
- Compliant with the IEC 60947-2 reference standard.
Early Contact Operation for RHx Rotary Handles
Early auxiliary contacts are used when an electrical control function must occur at a defined stage of the circuit breaker's mechanical operating sequence. On the ABB 1SDA104821R1, two microswitches are associated with the RHx rotary-handle mechanism and provide early operation for the undervoltage-release circuit as the breaker is operated towards the closed position.
This arrangement is specifically engineered for ABB Tmax XT5 and XT6 fixed or plug-in circuit breakers. The two changeover contacts provide flexible signalling interfaces for switchboard control circuits while maintaining compatibility with the dedicated ABB rotary-handle operating system.
Typical Applications
- ABB SACE Tmax XT5 moulded-case circuit breakers.
- ABB SACE Tmax XT6 moulded-case circuit breakers.
- Fixed and plug-in circuit-breaker installations.
- RHx rotary-handle operating mechanisms.
- Undervoltage-release control circuits.
- Industrial switchboards and low-voltage distribution equipment.
Technical Specifications
| Series | SACE Tmax XT |
|---|---|
| ABB order code | 1SDA104821R1 |
| Product type | Early auxiliary contact assembly |
| Accessory designation | AUE |
| Function | Early microswitches for undervoltage release |
| Operating mechanism | RHx rotary handle |
| Contact operating position | Closed |
| Number of contacts | 2 |
| Contact configuration | 2 changeover contacts (SPDT) |
| Compatible frames | XT5 / XT6 |
| Circuit-breaker execution | Fixed / plug-in |
| Reference standard | IEC 60947-2 |
| EAN / GTIN | 8015644069131 |
| Net weight | 0.085 kg |
Frequently Asked Questions
What is the ABB 1SDA104821R1 used for?
The 1SDA104821R1 is an AUE early auxiliary contact assembly containing two microswitches for the undervoltage release on compatible ABB Tmax XT5 and XT6 circuit breakers equipped with an RHx rotary-handle operating mechanism.
How many contacts does the ABB 1SDA104821R1 provide?
It provides two changeover auxiliary contacts, each operating as an SPDT contact.
Which circuit breakers are compatible with the 1SDA104821R1?
The accessory is designed for ABB SACE Tmax XT5 and XT6 circuit breakers in fixed and plug-in configurations.
What does RHx refer to on the ABB 1SDA104821R1?
RHx refers to the compatible ABB rotary-handle operating mechanism with which these early auxiliary microswitches operate.
What is the function of the AUE contacts?
The AUE contacts provide an early electrical signal for the undervoltage release during operation of the RHx rotary handle, with this version configured for operation in the closed sequence.
Trusted ABB Tmax XT Control Accessories
ABB SACE Tmax XT auxiliary accessories provide purpose-designed control and signalling functions for circuit-breaker installations, helping panel builders integrate rotary operating mechanisms, undervoltage releases and control circuits into dependable low-voltage distribution systems.
