Industrial TSB 152 Electronic Overload Protection Relay

Description:

The Tsubaki TSB152 shock relay is an electronic overload protection device used in industrial motor control systems to monitor motor current and detect overload conditions before equipment damage occurs. Commonly installed in conveyor systems, crushers, mixers, pumps, material handling equipment, and other heavy-duty industrial machinery with high-current motors. Maintenance teams and system integrators use this shock relay for equipment replacement, control panel retrofits, and preventive maintenance to improve machinery protection and reduce unplanned downtime.

Applications:

The Tsubaki TSB152 shock relay is designed to monitor motor load by measuring current through an external current transformer and disconnecting the control circuit when overload conditions persist beyond the preset shock time. It is widely used in conveyor systems, mining equipment, manufacturing lines, water treatment facilities, mixers, pumps, and heavy industrial processing equipment where reliable motor protection helps prevent mechanical failures and costly production interruptions.

Technical Specifications:

• Manufacturer Part Number (MPN): TSB152
• Manufacturer: Tsubaki
• Product Type: Shock Relay
• Series: 150 Series
• Load Current Setting Range: 30% to 130% of Rated Current
• Input Current: 5 A (CT Secondary)
• Control Power Supply: 115/230 VAC, 50/60 Hz
• Allowable Input Voltage Fluctuation: ±10%
• Maximum Motor Circuit Voltage: 600 VAC
• Current Detection Method: Single-phase Current Transformer (CT) System
• Start Time Setting Range: 0.2 to 20 Seconds
• Shock Time Setting Range: 0.2 to 3 Seconds
• Output Contact Configuration: Transfer Contact (1C)
• Output Contact Rating: 250 VAC, 0.2 A (Inductive Load)
• Minimum Applicable Load: 24 VDC, 4 mA
• Power Consumption: 1.2 VA Maximum
• Test Function: Yes
• Operating Temperature: -10°C to 50°C
• Operating Humidity: 45% to 85% RH (Non-condensing)
• Function: Motor Overload and Shock Detection
• Application Environment: Industrial Motor Control and Machinery Protection Systems

Common Replacements:

• Tsubaki TSB151 Shock Relay
• Tsubaki TSB152W Shock Relay
• Tsubaki TSBSB200 Shock Relay