ABB - Electrification Signature Partner Distributor
ABB - Electrification X50-B4-48-XD - PSTX extreme duty enclosed softstarters are the ultimate softstarting solution. Includes all features of the PSTX normal duty, sized for heavy duty applications, plus an AC-3 emergency bypass. Both the PSTX softstarter and TMAX XT breakers are utilized. Door mounted pilot devices include PSTX keypad, hand-off-auto selector switch, start and stop pushbuttons, power on pilot light, run pilot light, fault pilot light, normal/emergency bypass selector switch, emergency bypass start and stop pushbuttons and emergency bypass pilot light. Good for Normal Duty class 10 starts for 60HP/80A, heavy duty class 30 starts for 50HP/68A, SSCR rating of 65kA, 480V and type 4 enclosure.
More images
ABB - Electrification

X50-B4-48-XD


Documents & Media
Specification Sheet

Contact for Pricing

Overview

ABB PSTX Extreme Duty Enclosed Softstarter (SKU: X50-B4-48-XD) delivers robust motor control for heavy-duty industrial applications. Rated for 480V AC operation with a continuous current of 68A, this softstarter supports heavy-duty class 30 starts for 50HP loads and normal duty class 10 starts for 60HP loads. Door-mounted pilot devices include a detachable PSTX keypad with a graphical display supporting 17 languages, a hand-off-auto (H-O-A) selector switch, start/stop pushbuttons (P/BUTT), power-on/run/fault pilot lights (ILL), and a normal/emergency bypass selector with dedicated start/stop pushbuttons and pilot light. The unit integrates TMAX XT breakers for branch circuit protection, with options for circuit breakers or fused disconnects. Advanced motor control features include built-in torque control and slow-speed forward/reverse jog functions, enabling precise motor operation in applications requiring frequent starts or variable load conditions. The softstarter is optimized for centrifugal fans, mills, mixers, compressors, and conveyor systems, where reliability and minimal mechanical stress are critical. Electronics are conformal-coated for enhanced durability in corrosive or humid environments. Operational voltage range: 208–600V AC. Short Circuit Current Rating (SSCR): 65kA at 480V. Dimensions: 447 mm (H) x 900 mm (W) x 447 mm (D). Weight: 641 kg (1413 lb).
  • Heavy-duty class 30 starts for 50HP/68A loads; normal duty class 10 starts for 60HP/80A loads
  • Integrated AC-3 emergency bypass for uninterrupted operation during critical processes
  • Door-mounted pilot devices: PSTX keypad (17 languages), H-O-A selector, start/stop pushbuttons, pilot lights
  • Integrated TMAX XT breakers for branch circuit protection; operational voltage 208–600V AC
  • Includes door-mounted pilot devices, TMAX XT breakers, and multiple electrical protection options.
  • Detachable IP66-rated keypad with 17 languages and customizable display
  • Built-in torque control and jogging functions for pumps, conveyors, and cranes
  • Door-mounted pilot devices: H/O/A switch, start/stop buttons, pilot lights, emergency bypass controls
  • Integrated TMAX XT breakers with circuit breaker or fused disconnect options
  • Operational voltage: 208–600V AC, current range: 30–1250A

Specifications

Connection Type
Screw Terminal
Current Rating
80 A
Enclosure
NEMA 4
Frequency
60 Hz
Ip Rating
Type 4
Material
Metal
Mounting Type
Enclosed
Nema Rating
Type 4
Series
PSTX Extreme Duty
Size
Enclosed
Special Features
The PSTX offers complete motor protection in only one unit and is able to handle both load and network irregularities. PT-100, earth fault protection and over/under voltage protectionalong with many other functions keep your motor safer than ever.It offers three types of current limit: standard, dual and ramp. This gives you full control of your motor during start. It also allows you to use your motor in weaker networks.The bypass is built in and saving you time during installation and space in your panel.The PSTX features many application enhancingfeatures, including torque control: the mostefficient way to start and stop pumps. The pumpcleaning feature can reverse pump flow and cleanout pipes, securing uptime of your pump system. Main benefits • Secure motor reliability• Improve installation efficiency• Increase application productivity.Main features • Three-phase controlled• Operational voltage: 440 to 480 V AC• Wide rated control supply voltage: 100-250 V, 50/60 Hz• Rated operational current: 15…1250 A• Coated circuit boards• Torque control for excellent control of pumpsAdditional normal/heavy duty features • Circuit Breaker or Fuses• Door Mounted Keypad• Start Pushbutton• Stop Pushbutton• Hand-Off-Auto selector switch• Power On Pilot Light• Run Pilot Light• Fault Pilot LightAdditional extreme duty features • Circuit Breaker or Fuses• Door Mounted Keypad• Emergency Bypass• Start Pushbutton• Stop Pushbutton• Hand-Off-Auto selector switch• Normal-E-Bypass selector switch• E- Bypass Start Pushbutton• E-Bypass Stop Pushbutton• Power On Pilot Light• Run Pilot Light• Fault Pilot Light• E-Bypass Pilot Light
Voltage Rating
480 VAC
Voltage Rating
480 V
Package Dimensions (L x W x H)
20 IN x 12 IN x 24 IN
Package Dimensions (L x W x H)
50.8 cm x 30.48 cm x 60.96 cm
Package Weight (Imperial)
200.000 L
Package Weight (Metric)
90.720 kg
PSTX extreme duty enclosed softstarters are the ultimate softstarting solution. Includes all features of the PSTX normal duty, sized for heavy duty applications, plus an AC-3 emergency bypass. Both the PSTX softstarter and TMAX XT breakers are utilized. Door mounted pilot devices include PSTX keypad, hand-off-auto selector switch, start and stop pushbuttons, power on pilot light, run pilot light, fault pilot light, run pilot light, fault pilot light, normal/emergency bypass selector switch, emergency bypass start and stop pushbuttons and emergency bypass pilot light. . Good for Normal Duty class 10 starts for 500HP/590A, heavy duty class 30 starts for 400HP/480A, SSCR rating of 65kA, 480V and type 4 enclosure.

X400-B4-48-XD

PSTX extreme duty enclosed softstarters are the ultimate softstarting solution. Includes all features of the PSTX normal duty, sized for heavy duty applications, plus an AC-3 emergency bypass. Both the PSTX softstarter and TMAX XT breakers are utilized. Door mounted pilot devices include PSTX keypad, hand-off-auto selector switch, start and stop pushbuttons, power on pilot light, run pilot light, fault pilot light, run pilot light, fault pilot light, normal/emergency bypass selector switch, emergency bypass start and stop pushbuttons and emergency bypass pilot light. . Good for Normal Duty class 10 starts for 500HP/590A, heavy duty class 30 starts for 400HP/480A, SSCR rating of 65kA, 480V and type 4 enclosure.
STANDARD PANEL GPH2050PC4000 WEG specifications: Panel type SOFT-STARTER; Horsepower (HP) 40 HP; Main voltage 460 V; Bypass type AC3; Control options Start Pushbutton, Stop Pushbutton, Run Light and Fault Light; Enclosure rating Type 4

GPH2050PC4000

STANDARD PANEL GPH2050PC4000 WEG specifications: Panel type SOFT-STARTER; Horsepower (HP) 40 HP; Main voltage 460 V; Bypass type AC3; Control options Start Pushbutton, Stop Pushbutton, Run Light and Fault Light; Enclosure rating Type 4
VLT® Soft Starter MCD 500/600, 150 HP, 31 A, 200-525 V, 110-240 V control, non-bypassed, IP00, frame S2

132H2226

VLT® Soft Starter MCD 500/600, 150 HP, 31 A, 200-525 V, 110-240 V control, non-bypassed, IP00, frame S2
MTR DIN MT SOFT START 480V 3A

RSE4803-B

MTR DIN MT SOFT START 480V 3A
The softstarter PSR3-600-70 has a rated maximum operational current of 3 A with an operating voltage span from 208...600 V AC. The rated control voltage is between 100...240 V AC at 50/60 Hz. PSR features a two-phase control soft start and stop through a voltage ramp. It has built-in bypass for easy installation and energy saving. A RUN signal is available from a relay output in NO (normally open state). The start/stop ramp and time is easy to set by three potentiometers on the front. PSR is often used in combination with a manual motor starter (MMS) from ABB, so mechanical connection kits are available. Another popular option is Fieldbus communication, which can be enabled by an external adaptor and a Fieldbus plug. The PSR range is our most compact softstarters with basic functionality and values. They are suitable for small three-phase motors with nominal currents from 3...105 A and can manage up to 100 starts per hour. Common applications are, for example, pumps, fans, compressors, and conveyors.

PSR3-600-70

The softstarter PSR3-600-70 has a rated maximum operational current of 3 A with an operating voltage span from 208...600 V AC. The rated control voltage is between 100...240 V AC at 50/60 Hz. PSR features a two-phase control soft start and stop through a voltage ramp. It has built-in bypass for easy installation and energy saving. A RUN signal is available from a relay output in NO (normally open state). The start/stop ramp and time is easy to set by three potentiometers on the front. PSR is often used in combination with a manual motor starter (MMS) from ABB, so mechanical connection kits are available. Another popular option is Fieldbus communication, which can be enabled by an external adaptor and a Fieldbus plug. The PSR range is our most compact softstarters with basic functionality and values. They are suitable for small three-phase motors with nominal currents from 3...105 A and can manage up to 100 starts per hour. Common applications are, for example, pumps, fans, compressors, and conveyors.
The softstarter PSR6-600-11 has a rated maximum operational current of 6 A with an operating voltage span from 208...600 V AC. The rated control voltage is 24 V AC/DC. PSR features a two-phase control soft start and stop through a voltage ramp. It has built-in bypass for easy installation and energy saving. A RUN signal is available from a relay output in NO (normally open state). The start/stop ramp and time is easy to set by three potentiometers on the front. PSR is often used in combination with a manual motor starter (MMS) from ABB, so mechanical connection kits are available. Another popular option is Fieldbus communication, which can be enabled by an external adaptor and a Fieldbus plug. The PSR range is our most compact softstarters with basic functionality and values. They are suitable for small three-phase motors with nominal currents from 3...105 A and can manage up to 100 starts per hour. Common applications are, for example, pumps, fans, compressors, and conveyors.

PSR6-600-11

The softstarter PSR6-600-11 has a rated maximum operational current of 6 A with an operating voltage span from 208...600 V AC. The rated control voltage is 24 V AC/DC. PSR features a two-phase control soft start and stop through a voltage ramp. It has built-in bypass for easy installation and energy saving. A RUN signal is available from a relay output in NO (normally open state). The start/stop ramp and time is easy to set by three potentiometers on the front. PSR is often used in combination with a manual motor starter (MMS) from ABB, so mechanical connection kits are available. Another popular option is Fieldbus communication, which can be enabled by an external adaptor and a Fieldbus plug. The PSR range is our most compact softstarters with basic functionality and values. They are suitable for small three-phase motors with nominal currents from 3...105 A and can manage up to 100 starts per hour. Common applications are, for example, pumps, fans, compressors, and conveyors.
PSTX normal duty enclosed softstarters are the ultimate softstarting solution. Includes all features of the PSTX normal duty, sized for normal duty applications. Both the PSTX softstarter and TMAX XT breakers are utilized. Door mounted pilot devices include PSTX keypad, hand-off-auto selector switch, start and stop pushbuttons, power on pilot light, run pilot light and fault pilot light. Good for Normal Duty class 10 starts for 50HP/68A, heavy duty class 30 starts for 40HP/60A, SSCR rating of 65kA, 480V and type 4 enclosure.

X50-B4-48-ND

PSTX normal duty enclosed softstarters are the ultimate softstarting solution. Includes all features of the PSTX normal duty, sized for normal duty applications. Both the PSTX softstarter and TMAX XT breakers are utilized. Door mounted pilot devices include PSTX keypad, hand-off-auto selector switch, start and stop pushbuttons, power on pilot light, run pilot light and fault pilot light. Good for Normal Duty class 10 starts for 50HP/68A, heavy duty class 30 starts for 40HP/60A, SSCR rating of 65kA, 480V and type 4 enclosure.
The softstarter PSTX1250-600-70 has a rated maximum operational current of 1250 A with an operating voltage span from 208...600 V AC. The rated control voltage is between 100...250 V AC at 50/60 Hz. PSTX features a three-phase control soft start and stop through a voltage or a torque ramp. It has built-in bypass for easy installation and energy saving. A RUN, TOR and Event signal is available from relay outputs in NO (normally open state). The PSTX has functions such as current limit, kickstart, analog output, EOL, motor heating and pump cleaning. PSTX also features features jog, braking, stand-still brake, diagnostics, sequence start and emergency/fire pump mode as standard.To interact with PSTX, it has a detachable full graphic display with IP66 and 4x outdoor rating. There are four ways to communicate with PSTX. It can be done by hardwire inputs Start/Stop/Reset of fault, and by three programmable digital inputs. Another popular option is the built-in Fieldbus communication Modbus RTU and incl optional ANYBUS modules with every major protocol such as for example Profinet, Profibus, Modbus TCP, Ethernet IP and others. Another way to communicate with PSTX is to use an external adaptor and a Fieldbus plug. PSTX is the complete alternative for any motor starting application. It’s suitable for medium to large-sized three-phase motors with nominal currents from 30...1250 A inline connection or 52...2160 A inside delta connection. Typical applications are, for example, pumps, fans, compressors, and conveyors.

PSTX1250-600-70

The softstarter PSTX1250-600-70 has a rated maximum operational current of 1250 A with an operating voltage span from 208...600 V AC. The rated control voltage is between 100...250 V AC at 50/60 Hz. PSTX features a three-phase control soft start and stop through a voltage or a torque ramp. It has built-in bypass for easy installation and energy saving. A RUN, TOR and Event signal is available from relay outputs in NO (normally open state). The PSTX has functions such as current limit, kickstart, analog output, EOL, motor heating and pump cleaning. PSTX also features features jog, braking, stand-still brake, diagnostics, sequence start and emergency/fire pump mode as standard.To interact with PSTX, it has a detachable full graphic display with IP66 and 4x outdoor rating. There are four ways to communicate with PSTX. It can be done by hardwire inputs Start/Stop/Reset of fault, and by three programmable digital inputs. Another popular option is the built-in Fieldbus communication Modbus RTU and incl optional ANYBUS modules with every major protocol such as for example Profinet, Profibus, Modbus TCP, Ethernet IP and others. Another way to communicate with PSTX is to use an external adaptor and a Fieldbus plug. PSTX is the complete alternative for any motor starting application. It’s suitable for medium to large-sized three-phase motors with nominal currents from 30...1250 A inline connection or 52...2160 A inside delta connection. Typical applications are, for example, pumps, fans, compressors, and conveyors.

Frequently Asked Questions

What is the SSCR rating for the ABB PSTX X50-B4-48-XD?

The ABB PSTX Extreme Duty Enclosed Softstarter X50-B4-48-XD has a Short Circuit Current Rating (SSCR) of 65kA at 480V.

What types of motor starts does this softstarter support?

This softstarter supports heavy-duty class 30 starts for 50HP/68A loads and normal duty class 10 starts for 60HP/80A loads.

What is the enclosure rating for the X50-B4-48-XD?

The ABB PSTX X50-B4-48-XD features a NEMA Type 4 enclosure, providing protection against dust, moisture, and corrosive atmospheres.

Does the X50-B4-48-XD include an emergency bypass feature?

Yes, the X50-B4-48-XD includes an integrated AC-3 emergency bypass, allowing motors to continue running during equipment failure.

What are the dimensions of the ABB PSTX X50-B4-48-XD?

The dimensions of the ABB PSTX Extreme Duty Enclosed Softstarter X50-B4-48-XD are 447 mm (Height) x 900 mm (Width) x 447 mm (Depth).

What certifications does the PSTX X50-B4-48-XD have?

The ABB PSTX Extreme Duty Enclosed Softstarter X50-B4-48-XD is UL 508A and CSA C22.2 No. 286 certified.

What motor control features are included on the keypad?

The detachable keypad features a large graphical display, 17 pre-installed languages, customizable home screens, torque control, and jog functions.

Frequently Asked Questions about ABB - Electrification

What industries and applications are Jokab Safety products used for?

Jokab Safety products are specifically designed for machine safety applications across multiple critical industrial sectors, including Food and Beverage, Packaging, and Material Handling industries. Their safety solutions cover a wide range of machine safeguarding needs, such as safety light guards, safety controllers, safety relays, safety edges, safety mats, and two-hand control devices that protect personnel and equipment in complex industrial automation environments.

What technical support does Jokab Safety offer?

Jokab Safety offers comprehensive technical support through multiple channels, including a dedicated technical support phone line at (888) 385-1221 (Option 1) and email support at [email protected]. For advanced technical assistance, customers can contact their specialized Jokab Tech Support at (519) 982-0976 or email [email protected]. Additionally, they provide product specialist support through Jeff Leslie, who can be reached at (519) 982-0976, offering in-depth application and technical guidance.

What are the main product lines offered by Jokab Safety?

Jokab Safety offers a comprehensive range of machine safety products including safety light guards (Orion), safety controllers (Pluto), safety relays (Sentry), safety edges, safety contact mats, safety locks (Gkey), and safety sensors with OSSD and DYNlink interfaces. Their product lines are specifically designed for industrial applications in food and beverage, packaging, and material handling industries, providing robust safety solutions for machine guarding and personnel protection.

What are the key features of Jokab Safety products?

Jokab Safety products offer comprehensive industrial safety solutions with key features including: highest safety certification levels (up to PL e/Cat 4), extensive fault detection, multiple safety device types (optical safety devices, pressure sensitive devices, sensors, switches, locks, emergency stops), and innovative DYNlink technology that reduces cable requirements and simplifies installation. Their products are certified, verified, and compatible with major industrial automation systems like B&R, featuring easy M12 connector connections and a wide range of adapters to streamline safety implementation.

What certifications and standards do ABB - Electrification products comply with?

ABB - Electrification products comply with a comprehensive range of international certifications and standards, including UL (United States), CSA (Canada), CE (European Community), UKCA (United Kingdom), EAC (Russia), and C-Tick (Australia & New Zealand). Our products meet critical international standards such as IEC 60947 series for low-voltage switchgear, functional safety standards EN 61800-5-2 and ISO 13849-1, and marine classification standards from Bureau Veritas, DNV, and Lloyd's Register of Shipping.

What industries and applications are ABB - Electrification products used for?

ABB - Electrification products are engineered for critical applications across multiple industries, including Energy, Oil & Gas, Manufacturing, Power Generation, HVAC, Marine, Food & Beverage, Mining, Pulp & Paper, Water Treatment, and Automotive. Their solutions cover essential electrical infrastructure needs such as switchgear, power distribution systems, circuit protection, digital control technologies, and drive systems designed for high-reliability environments with a strong focus on sustainability, efficiency, and safety.

What technical support does ABB - Electrification offer?

ABB - Electrification offers comprehensive technical support through multiple channels, including a dedicated technical support hotline at 888-385-1221 (Option 1), available 7:00 a.m. - 5:00 p.m. CST, Monday-Friday. Their support services encompass 24/7/365 emergency services, on-site support, remote monitoring and diagnostics, installation and commissioning, equipment assessments, repair coordination, and multi-vendor technical assistance. Customers can also access resources like personnel safety training, disaster recovery support, and service agreements tailored to their specific electrification needs.

What are the main product lines offered by ABB - Electrification?

ABB - Electrification offers a comprehensive range of electrical distribution and protection products, including circuit monitoring systems, panelboards, switchgear, motor control centers, circuit breakers, softstarters, and power distribution solutions. Key product lines span low and medium voltage applications across utilities, commercial, industrial, healthcare, and manufacturing sectors, with specialized offerings like the ReliaGear® panelboards, SMISSLINE TP bus systems, and Ekip UP protection and metering relays.

What are the key features of ABB - Electrification products?

ABB - Electrification products feature advanced integrated design elements that enhance industrial performance and reliability. Key features include harmonics and EMC design, integrated DC choke, removable terminals for fast installation, USB ports for troubleshooting, and integrated Safe Torque Off (STO) functionality. The products deliver superior motor control capabilities, support both induction and permanent magnet motors, and offer robust operational features like side-by-side mounting without derating and operation at temperatures up to 45°C. Additionally, ABB's Electrification solutions emphasize digital innovation, with technologies like Novolink enabling predictive maintenance, enhanced analytics, and seamless system integration.

What communication protocols do ABB - Electrification products support?

ABB - Electrification products support a comprehensive range of industrial communication protocols, including Modbus RTU, PROFIBUS DP, PROFINET, EtherNet/IP, CANopen, DeviceNet, and IEC 61850. These protocols enable flexible connectivity across multiple industrial automation platforms, with support for various network topologies and high-speed data transmission up to 100 Mbps.