Description
Product PSTX37-600-70 Softstarter
The softstarter PSTX37-600-70 has a rated maximum operational current of 37 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. It 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. It also 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: by hardwire inputs Start/Stop/Reset of fault and by three programmable digital inputs. A popular option is the built-in Fieldbus communication Modbus RTU, including optional ANYBUS modules with major protocols like Profinet, Profibus, Modbus TCP, Ethernet IP and others. Another option is using an external adaptor and Fieldbus plug.
PSTX is the complete alternative for any motor starting application. It is suitable for medium to large-sized three-phase motors with nominal currents from 30 to 1250 A inline connection or 52 to 2160 A inside delta connection. Typical applications include pumps, fans, compressors, and conveyors.
Technical specifications:
Rated operational voltage: 208 … 600 V AC
Rated control supply voltage: 100 … 250 V AC
Rated control circuit voltage: 24 V DC
Frequency: 50/60 Hz
Rated operational power in-line connection: 9 kW at 230 V, 18.5 kW at 400 V, 22 kW at 500 V
Rated operational current in-line connection: 37 A
Rated operational power inside delta connection: 15 kW at 230 V, 30 kW at 400 V, 37 kW at 500 V
Rated operational current inside delta connection: 64 A
Service factor: 100%
Overload protection: Built-in electronic overload protection
Ramp time: 1 … 120 seconds
Initial voltage during start: 10 … 99%
Step down voltage special ramp: 100 … 10%
Current limit function: 1.5 … 7.5 times Ie
Run, bypass, fault, and overload signal relays available
Analog outputs: 0–10 V, 0–20 mA, 4–20 mA
Communication protocols supported: Modbus-RTU, Modbus-TCP, Ethernet-IP, EtherCAT, DeviceNet, CANopen, Profibus, Profinet, BACnet-IP, BACnet-MSTP
Degree of protection: according to IEC standards Main Terminals IP00
Terminal type: Cable Clamp; Main circuit hole diameter 8.5 mm
Dimensions (W x H x D): 15 cm x 31.4 cm x 19.8 cm
Weight: 4.6 kg
Operating ambient temperature: -25 … +60 °C
Storage ambient temperature: -40 … +70 °C
Customs Tariff Code: 85371091
