Benshaw RB2-1-S-027A-11C

Benshaw’s RB2-1-S-027A-11C Open Chassis Soft Starter is a compact, simple to use soft starter with built-in motor protection, providing greater control in starting and stopping of three phase motors. The integral bypass contactor reduces the watt loss of the soft starter allowing RB2 Open Chassis Soft Starters to be mounted in non-vented enclosures.

The MX2 or MX3 technology provides users with a powerful group of programming parameters, designed for flexibility in across a wide range of industrial applications. Both MX2 and MX3 controls provide simple setup and commissioning via the Quick Start Menu.


: $1,995.00 ($822.00)

Benshaw RB2-1-S-027A-11C open chassis soft starter rated at 27 AMPS with an integral bypass and MX2 technology.

This low voltage Benshaw soft starter is rated for 10 H.P. @ 230 volt/20 H.P. @ 460 volt standard duty and runs 350% for 30 seconds and 115% continuous.  The included MX2 software package includes multiple starting modes, from voltage ramp, current ramp, torque ramp along with power ramp that offers a wide variety of options for your application. As with any soft starter, motor protection is paramount and the RB2-1-S-027A-11C offers a motor thermal overload, phase reversal, phase loss, overcurrent and undercurrent along with many other motor protective elements to ensure motor safety. When you factor in Benshaw’s three-year factory warranty and 24/7 comprehensive technical support, we think you’ll find Benshaw’s MX2-based controls to be the best value on the planet.
Key Advantages:

– Small, compact design
– Modular power stack assembly for ease of maintenance
– ModBus standard / other Fieldbus optional
– Multiple starting ramps for various applications
– Integrated metering system diagnostics
– Integral bypass contactors for efficient operation, eliminating the need for external fans
– Integrated motor protection
– Dual ramp capability for loaded / unloaded applications
– Power stack has multiple ratings for application flexibility

All low voltage soft starters from Benshaw provide:

  • Mission critical reliability
  • Patented soft start technology
  • Integral digital protection and metering
  • 24/7 service and support
  • 3 year factory warranty
Weight 14 lbs
Dimensions 7 × 10 × 14 in


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