STB Basic Soft Starter 2 Phase (controlled), 3 wire connection, 8A to 80A range
Our entry level Soft starter, the STB is a compact low cost unit, available in 3 In, 3.5 In, 4 In and 4.5 In formats and 28 Amp sizes from 8A to 80A.

• Two leg control of 3 wire connection
• Unit size from 8 Amps to 80 Amps
• Soft Start and Soft Stop features are fully adjustable via the front panel
• Voltage Start value fully adjustable via the front panel
• Internal Bypass Relay rated up to 44A. Over this value a relay contact can energise an external Bypass contactor
• Current Limit adjustable via the front panel
• Isolated Stop Start Command
• Option to work in continous mode using thyristors only (dis-engage Bypass contactor)