Why Choose the ABB 1SAZ701903R1011 WRB-400 Bowden Wire?
The ABB 1SAZ701903R1011, also known as the WRB-400, is a 400 mm Bowden wire with remote-reset actuator designed for use with ABB thermal and electronic overload relays. It forms part of ABB's remote-reset accessory system, allowing an overload relay installed inside a control cabinet or motor control centre to be reset conveniently from the front of the enclosure.
The WRB-400 connects a panel-mounted reset actuator to the compatible ABB WRH-F holder fitted to the overload relay. This mechanical cable arrangement is particularly useful where direct access to the relay is restricted, allowing operators to reset a tripped overload relay without opening the electrical enclosure or reaching directly into the control panel.
With a cable length of 400 mm, an actuator mounting hole diameter of 7.3 mm and support for panel thicknesses up to 12 mm, the WRB-400 provides a compact remote-reset solution for industrial motor-control installations. It is compatible with a broad selection of ABB TF thermal and EF electronic overload relays when used with the appropriate WRH-F holder.
Key Advantages
- Provides convenient remote resetting of ABB overload relays.
- 400 mm Bowden wire length for installation between the relay and panel door.
- Panel-mounted actuator allows reset operation from outside the electrical enclosure.
- Designed for use with the ABB WRH-F remote-reset holder.
- Suitable for numerous ABB TF thermal and EF electronic overload relays.
- 7.3 mm actuator mounting hole supports compact panel installation.
- Suitable for panels with a maximum thickness of 12 mm.
- Ideal for motor control centres and compact control cabinets where relay access is restricted.
Key Features
- ABB WRB remote-reset accessory series.
- WRB-400 model with Bowden wire and actuator.
- 400 mm cable length.
- Mechanical remote-reset operation for overload relays.
- 7.3 mm panel hole diameter for the actuator.
- 12 mm maximum panel thickness.
- Designed for use with the WRH-F holder.
- Compatible with ABB TF42, TF65 and TF96 thermal overload relays.
- Compatible with ABB EF19, EF45, EF65, EF96, EF146, EF205, EF370, EF460 and EF750 electronic overload relays.
- Optional ABB WRBG panel seal gasket available for applications requiring enhanced panel sealing.
Convenient Remote Reset for Motor Protection Equipment
Overload relays are commonly installed inside motor control centres, machinery cabinets and compact electrical enclosures where direct access can be inconvenient. The ABB WRB-400 provides a mechanical connection between a panel-mounted actuator and the overload relay, allowing the relay's reset mechanism to be operated remotely from the enclosure door.
The complete remote-reset arrangement uses the WRB-400 Bowden wire together with the ABB WRH-F holder mounted on the overload relay. This provides a practical way to improve accessibility while retaining the overload relay inside the protected electrical enclosure, making the system particularly useful for industrial machinery and motor-control installations.
Typical Applications
- Motor control centres and switchgear assemblies.
- Industrial electrical control panels.
- Machinery and automation cabinets.
- Remote resetting of thermal overload relays.
- Remote resetting of electronic overload relays.
- Pump, fan and compressor control panels.
- Conveyor and material handling systems.
- OEM machinery and industrial motor-control systems.
