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1SDA054934R1 ABB RHE_EM T4-T5 Extended Rotary Handle with Emergency Return
ABB 1SDA054934R1 is an RHE_EM extended rotary handle operating mechanism with emergency return for external operation of compatible ABB SACE Tmax T4 and T5 circuit breakers.
£276.41
Why Choose the ABB 1SDA054934R1 RHE_EM Rotary Handle?
The ABB 1SDA054934R1 is an RHE_EM extended rotary handle operating mechanism with emergency return designed for compatible ABB SACE Tmax T4 and T5 moulded case circuit breakers. Identified as RHE_EM T4-T5 W EMER. RETURNED, this genuine ABB accessory provides external rotary operation of the circuit breaker from the switchboard or enclosure door.
The extended-handle arrangement allows a circuit breaker mounted inside an enclosure to be operated without direct access to the breaker itself. This makes the RHE_EM particularly suitable for industrial panels and machinery where convenient external control of the main protective device is required.
The 1SDA054934R1 incorporates an emergency-return function and is specifically intended for compatible Tmax T4 and T5 circuit breakers. Its coordinated ABB design provides a practical operating interface for enclosed low-voltage distribution and machine-control installations.
Key Advantages
- Genuine ABB SACE Tmax extended rotary handle mechanism.
- Designed for external circuit breaker operation through a panel or enclosure door.
- Features an emergency-return function.
- Compatible with ABB Tmax T4 and T5 circuit breakers.
- Provides a clear rotary operating interface for enclosed breaker installations.
- Suitable for industrial switchboards, control panels and machinery.
- Manufacturer-engineered for coordinated integration with the Tmax platform.
Key Features
- ABB SACE Tmax T accessory.
- RHE_EM extended rotary handle configuration.
- Emergency-returned operating mechanism.
- Compatible with Tmax T4 and T5 breaker frames.
- Designed for enclosure-door operation.
- Provides mechanical transfer of rotary operating movement to the breaker.
- Suitable for enclosed low-voltage distribution assemblies.
- Dedicated ABB accessory for compatible Tmax circuit breakers.
External Rotary Operation for Tmax T4 and T5
An extended rotary handle transfers operating movement from a handle mounted on the enclosure to a circuit breaker installed inside the panel. This arrangement enables normal breaker operation while the electrical equipment remains enclosed, supporting practical switchboard layouts and convenient operator access.
The ABB 1SDA054934R1 provides this functionality for compatible Tmax T4 and T5 circuit breakers while incorporating the specified emergency-return feature. It is suited to industrial distribution panels, machinery and control enclosures requiring a dedicated external circuit breaker operating mechanism.
Typical Applications
- ABB Tmax T4 and T5 circuit breaker installations.
- Industrial low-voltage switchboards.
- Enclosure-door circuit breaker operation.
- Machine control panels.
- Power distribution cabinets.
- Industrial installations requiring an extended rotary operating mechanism.
Technical Specifications
| Series | SACE Tmax T |
|---|---|
| Product group | 310511-T-Max T4 - T8 |
| Model / designation | RHE_EM T4-T5 W EMER. RETURNED |
| Order code | 1SDA054934R1 |
| Product type | Extended rotary handle operating mechanism |
| Accessory designation | RHE_EM |
| Compatible circuit breakers | Tmax T4 and T5 |
| Operating method | Rotary handle |
| Mounting application | Extended / enclosure-door operation |
| Special function | Emergency return |
| Function | External mechanical operation of the circuit breaker |
Frequently Asked Questions
What is the ABB 1SDA054934R1?
It is an RHE_EM extended rotary handle operating mechanism with emergency return for compatible ABB SACE Tmax T4 and T5 circuit breakers.
Which ABB circuit breakers are compatible with the 1SDA054934R1?
The accessory is designed for compatible ABB SACE Tmax T4 and T5 moulded case circuit breakers.
What does RHE_EM identify?
RHE_EM identifies this ABB accessory as an extended rotary handle operating mechanism configured with the specified emergency-return functionality.
What is the purpose of an extended rotary handle?
An extended rotary handle allows a circuit breaker mounted inside an enclosure to be mechanically operated from the enclosure or switchboard door.
Where is the ABB 1SDA054934R1 typically used?
It is typically used in industrial switchboards, machinery and electrical control enclosures where a compatible Tmax T4 or T5 breaker requires external rotary operation.
Trusted ABB Tmax Engineering
ABB SACE Tmax operating accessories provide coordinated mechanical interfaces for low-voltage circuit breakers, supporting convenient and dependable breaker operation in industrial switchboards, machinery and enclosed power-distribution systems.
