In stock 5 available
The KTA 3-25 is a thermal motor protection relay designed to protect three-phase motors against overload conditions, phase loss, and abnormal operating currents. It provides adjustable current settings to match motor full load amps (FLA). The KT3-25-PA-11 is an auxiliary contact block that extends the starter’s control signaling with additional NO/NC contacts. Technical Specifications Product type: Thermal Motor Protection Relay + Auxiliary Contact Block Manufacturer: Sprecher + Schuh Main unit model: KTA 3-25 Auxiliary unit model: KT3-25-PA-11 KTA 3-25 Motor Protection Relay Function: Motor starter/protector with overload protection Rated operational current: Up to 25 A (FLA adjustable range 1.0–1.6 × FLA) Tripping current: 120% of FLA (adjustable by rotary dial 1.0, 1.2, 1.4, 1.6 A multiples) Trip class: IEC standard overload protection Control functions: Start (green push button), Stop/Reset (red push button), Test switch Poles: 3-pole device (T1, T2, T3 for motor phase connections) Voltage rating: 220–690 V AC (AC-1 category) Breaking capacity: 10 A at 660 V AC (AC-1), utilization category AC-11 Standards: IEC 337-1, BS 4794, VDE 0660 Terminals: Screw-type, labeled for quick connection Mounting: DIN rail or panel mounting Indication: Mechanical trip indicator KT3-25-PA-11 Auxiliary Contact Block Function: Provides auxiliary signaling contacts for control circuits Contacts: 1 × NO (13-14), 1 × NC (21-22) Rated operational current: 10 A at 600 VAC general use Compatibility: Designed to fit directly on KTA 3-25 relay Applications: Control signaling, interlocks, alarms, auxiliary motor circuit functions Country of manufacture: Switzerland Please review pictures carefully and let us know if you have any questions!
Condition: Used
Weight: 0.90
Depth: 4.00
Length: 6.00
Width: 4.00
SKU: 10177 4.S8.11.4
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