{"product_id":"ge-pstb720-600-70-softstarter-720a-industrial-automation-module","title":"GE PSTB720-600-70 Softstarter 720A Industrial Automation Module","description":"\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThe GE PSTB720-600-70 is a heavy-duty softstarter designed for demanding industrial applications. This Industrial Automation Module handles motors up to 720 A (in-line) and 1247 A (inside delta), making it a robust choice for large pumps, fans, and conveyors. With a rated operational voltage of 208–600 V AC and a control supply of 100–250 V AC, it integrates seamlessly into existing systems.\u003c\/p\u003e\u003cp\u003eBuilt for reliability, the PSTB720-600-70 includes built-in electronic overload protection, multiple signal relays (run, bypass, fault, overload), and an analog output for monitoring. Its compact footprint (436 mm width, 515 mm height, 381 mm depth) and 55 kg weight allow straightforward installation in standard enclosures.\u003c\/p\u003e\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eParameter\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Operational Voltage\u003c\/td\u003e\n\u003ctd\u003eMain Circuit 208 ... 600 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Control Supply Voltage (Us)\u003c\/td\u003e\n\u003ctd\u003e100 ... 250 V AC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Control Circuit Voltage (Uc)\u003c\/td\u003e\n\u003ctd\u003eDC Operation 24 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Frequency (f)\u003c\/td\u003e\n\u003ctd\u003e50\/60 Hz\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Operational Power - In-Line (Pe)\u003c\/td\u003e\n\u003ctd\u003e400 kW at 400 V; 500 kW at 500 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Operational Current - In-Line (Ie)\u003c\/td\u003e\n\u003ctd\u003e720 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Operational Power - Inside Delta\u003c\/td\u003e\n\u003ctd\u003e710 kW at 400 V; 880 kW at 500 V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Operational Current - Inside Delta\u003c\/td\u003e\n\u003ctd\u003e1247 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eService Factor\u003c\/td\u003e\n\u003ctd\u003e115%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOverload Protection\u003c\/td\u003e\n\u003ctd\u003eBuilt-in electronic overload protection\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStarting Capacity\u003c\/td\u003e\n\u003ctd\u003e3xIe for 15s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRamp Time\u003c\/td\u003e\n\u003ctd\u003e0 ... 120 s\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eInitial Voltage During Start\u003c\/td\u003e\n\u003ctd\u003e30 ... 70%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Limit Function\u003c\/td\u003e\n\u003ctd\u003e1.5 ... 7xIe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAnalog Outputs\u003c\/td\u003e\n\u003ctd\u003e0–10 V, 0–20 mA, 4–20 mA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDegree of Protection\u003c\/td\u003e\n\u003ctd\u003eIP00 (main terminals)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAmbient Temperature (Operation)\u003c\/td\u003e\n\u003ctd\u003e0 ... +50 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd\u003e-25 ... +70 °C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDimensions (W x H x D)\u003c\/td\u003e\n\u003ctd\u003e436 x 515 x 381 mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eNet Weight\u003c\/td\u003e\n\u003ctd\u003e55 kg\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch2\u003eKey Features \u0026amp; Benefits\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Current Handling:\u003c\/strong\u003e Supports 720 A in-line and 1247 A inside delta, suitable for large motors.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFlexible Control:\u003c\/strong\u003e Ramp time adjustable from 0 to 120 seconds; initial voltage from 30% to 70%.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBuilt-in Protection:\u003c\/strong\u003e Electronic overload protection and current limit function (1.5–7xIe) safeguard the motor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eComprehensive Monitoring:\u003c\/strong\u003e Analog outputs (0–10 V, 0–20 mA, 4–20 mA) allow real-time data integration.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRelay Outputs:\u003c\/strong\u003e Run, bypass, fault, and overload signal relays for status reporting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEasy Installation:\u003c\/strong\u003e Bar-type main terminals with 12.5 mm hole diameter and 40x6 mm busbar capacity.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eIndustry Applications\u003c\/h2\u003e\u003cp\u003eThe GE PSTB720-600-70 excels in heavy-duty starting applications where inrush current must be controlled. Typical uses include:\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePump Stations:\u003c\/strong\u003e Reduces mechanical stress on pumps and pipelines during start-up, extending equipment life.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCentrifugal Fans:\u003c\/strong\u003e Provides smooth acceleration, preventing belt slippage and bearing wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConveyor Systems:\u003c\/strong\u003e Ensures controlled torque for loaded belt starting, minimizing product damage.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003eIn each scenario, the softstarter's adjustable ramp time and current limit function deliver precise control, improving operational efficiency and reducing downtime.\u003c\/p\u003e\u003ch2\u003eInstallation \u0026amp; Setup\u003c\/h2\u003e\u003cp\u003eMount the PSTB720-600-70 on a flat, vertical surface using the provided mounting points. Ensure adequate clearance for ventilation, as the unit dissipates heat during operation. Connect the main circuit using copper bars that fit the 12.5 mm holes and 40x6 mm cross-section. For control wiring, use rigid conductors up to 2.5 mm² (single) or 1.5 mm² (double). Tighten control and supply terminals to 0.5 N·m, and main circuit terminals to 45 N·m.\u003c\/p\u003e\u003cp\u003eWire the control supply (100–250 V AC) and the 24 V DC control circuit as per the wiring diagram. Configure the ramp time and initial voltage using the front panel controls. Verify the LED indicators: green for ready\/standby, yellow for protection, and red for fault.\u003c\/p\u003e\u003ch2\u003eMaintenance \u0026amp; Reliability\u003c\/h2\u003e\u003cp\u003eRegular inspection of the PSTB720-600-70 ensures long-term reliability. Check terminal tightness annually, as thermal cycling can loosen connections. Clean dust from the heatsink and enclosure to maintain proper airflow. The built-in electronic overload protection reduces the need for external relays, simplifying maintenance. With a service factor of 115%, the unit can handle occasional overloads without nuisance trips.\u003c\/p\u003e\u003cp\u003eOperating in ambient temperatures up to +50 °C, the softstarter is designed for harsh industrial environments. Storage between -25 °C and +70 °C allows safe warehousing.\u003c\/p\u003e\u003ch2\u003eCompatibility \u0026amp; Integration\u003c\/h2\u003e\u003cp\u003eThe PSTB720-600-70 supports a FieldBusPlug (standard) for communication, enabling integration with PLCs and SCADA systems. Analog outputs (0–10 V, 0–20 mA, 4–20 mA) provide real-time motor data for monitoring and control. The relay outputs can be wired to a control system for status indication or interlocking.\u003c\/p\u003e\u003ch2\u003eSelection Guide\u003c\/h2\u003e\u003cp\u003eBefore purchasing, verify that the motor's full-load current does not exceed 720 A for in-line connection, or 1247 A for inside delta. Confirm the supply voltage matches 208–600 V AC and the control voltage is within 100–250 V AC. For applications requiring frequent starts, note the maximum of 10 starts per hour at 3.5xIe for 7 seconds (50% ON\/OFF).\u003c\/p\u003e\u003cp\u003ePLC Source PRO offers genuine GE spares with fast worldwide shipping. Contact our team to confirm availability and lead times.\u003c\/p\u003e","brand":"GE","offers":[{"title":"Default","offer_id":44447094145123,"sku":"PSTB720-600-70","price":291.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0678\/8635\/0435\/files\/PSTB1050-600-70_f3e4e107-14c2-47f7-a74a-3233a6e82791.jpg?v=1785959793","url":"https:\/\/www.plcsourcepro.com\/he\/products\/ge-pstb720-600-70-softstarter-720a-industrial-automation-module","provider":"PLC Source PRO","version":"1.0","type":"link"}