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1SDA066478R1 ABB RHD_EM XT2-XT4 W Emergency Direct Rotary Handle
ABB 1SDA066478R1 RHD_EM emergency direct rotary handle operating mechanism with padlock device for Tmax XT2 and XT4 withdrawable circuit breakers.
£81.38
Why Choose the ABB 1SDA066478R1 RHD_EM Emergency Direct Rotary Handle?
The ABB 1SDA066478R1 is an RHD_EM emergency direct rotary handle operating mechanism designed for ABB SACE Tmax XT moulded-case circuit breakers. Specifically engineered for XT2 and XT4 withdrawable circuit breakers, it provides direct manual breaker operation with an emergency-stop style handle and integrated padlocking capability.
As part of the ABB T-Max XT 250 Range, this rotary handle provides a practical operating interface directly on the circuit breaker. The emergency configuration makes the operating control readily identifiable, while the padlock device supports isolation procedures by allowing the mechanism to be secured against unauthorised operation.
The 1SDA066478R1 is intended specifically for withdrawable XT2 and XT4 installations and uses a direct-mounted rotary operating mechanism. Its ABB-engineered construction provides dependable mechanical control for switchboards, machinery panels and industrial electrical distribution assemblies.
Key Advantages
- Genuine ABB RHD_EM emergency rotary handle for Tmax XT circuit breakers.
- Designed specifically for XT2 and XT4 withdrawable circuit breakers.
- Direct-mounted operating mechanism for manual breaker control.
- Emergency configuration for clear identification in electrical installations.
- Integrated padlock device supports secure isolation procedures.
- Factory-engineered compatibility with the ABB SACE Tmax XT platform.
Key Features
- ABB SACE Tmax XT rotary handle accessory.
- RHD_EM emergency direct rotary handle.
- Compatible with XT2 and XT4 circuit-breaker frames.
- Designed for withdrawable (W) circuit breakers.
- Direct mounting to the circuit-breaker operating mechanism.
- Integrated padlocking provision.
- Manual rotary operation of the associated circuit breaker.
- Suitable for industrial and commercial low-voltage distribution systems.
Reliable Emergency Circuit-Breaker Operation
A direct rotary handle provides a convenient manual interface for operating a circuit breaker through a rotary movement. The mechanism transfers the operator's movement directly to the breaker, providing clear and controlled manual switching without requiring an extended operating shaft.
The ABB RHD_EM version combines this direct operating method with an emergency-style handle and padlocking provision. This makes it particularly suitable for installations where clear emergency identification and secure isolation of withdrawable XT2 or XT4 circuit breakers are required.
Typical Applications
- ABB Tmax XT2 and XT4 withdrawable circuit breakers.
- Industrial electrical distribution boards.
- Emergency switching and isolation applications.
- Machinery and process control panels.
- Industrial switchgear assemblies.
- Electrical installations requiring padlockable breaker operation.
- Commercial and infrastructure power distribution systems.
Technical Specifications
| Series | SACE Tmax XT / T-Max XT 250 Range |
|---|---|
| ABB order code | 1SDA066478R1 |
| Product type | Emergency direct rotary handle operating mechanism |
| Accessory type | Rotary handle - direct mount |
| Handle type | Emergency |
| Compatible frames | XT2, XT4 |
| Breaker configuration | Withdrawable (W) |
| Mounting type | Direct mounting |
| Standards | IEC 60947-2, UL 489 |
| EAN | 8015644003845 |
| Dimensions (W × H × D) | 140 × 125 × 115 mm |
| Weight | 0.3 kg |
Frequently Asked Questions
What is the ABB 1SDA066478R1 used for?
It is an emergency direct rotary handle operating mechanism used for manual operation and secure isolation of compatible ABB Tmax XT2 and XT4 withdrawable circuit breakers.
Which ABB circuit breakers are compatible with the 1SDA066478R1?
The 1SDA066478R1 is specifically designed for ABB SACE Tmax XT2 and XT4 withdrawable circuit breakers.
Is the ABB 1SDA066478R1 a direct-mounted rotary handle?
Yes. It is an RHD_EM direct-mounted rotary handle operating mechanism, designed to operate the compatible circuit breaker directly.
Does the ABB 1SDA066478R1 support padlocking?
Yes. The operating mechanism incorporates a padlock device to support secure circuit-breaker isolation procedures.
Is the ABB 1SDA066478R1 intended for withdrawable breakers?
Yes. This version is specifically designed for withdrawable XT2 and XT4 circuit breakers.
Trusted ABB Circuit-Breaker Accessories
ABB SACE Tmax XT rotary handle operating mechanisms provide dependable manual circuit-breaker control and isolation for industrial and commercial switchboards, with purpose-designed configurations for compatible Tmax XT breaker installations.
