Industrial TSB152 Shock Relay

Description:

The Tsubakimoto Emerson TSB152 Shock Relay is used in industrial motor protection systems to detect overload conditions and prevent equipment damage. Commonly installed on conveyors, feeders, hoists, pumps, and motor-driven machinery requiring electrical overload monitoring. Maintenance teams and system integrators use this shock relay for repair, replacement, retrofit, and improving equipment protection reliability.

Applications:

The Tsubakimoto Emerson TSB152 Shock Relay monitors motor current to detect abnormal increases caused by mechanical overloads, jams, or shock loads. When the motor current exceeds the preset load current setting for the configured shock time, the relay output can disconnect motor power through the control circuit. It is commonly used in conveyor systems, material handling equipment, and industrial machinery requiring dependable motor overload protection.

Technical Specifications:

• Manufacturer: Tsubakimoto Chain Co. (Tsubaki / Emerson)
• Manufacturer Part Number (MPN): TSB152
• Product Type: Electronic Shock Relay / motor overload protection relay
• Function: Motor current monitoring and overload protection
• Motor Current Range: 17–400 A
• Load Current Setting Range: 30–130%
• Start Time Setting Range: 0.2–20 seconds
• Shock Time Setting Range: 0.2–3 seconds
• Control Power Supply: 115/230 VAC, 50/60 Hz
• Maximum Motor Circuit Voltage: 600 VAC, 50/60 Hz
• Detection Method: Current transformer monitoring
• Output Contact: Transfer contact, 250 VAC 0.2 A inductive load
• Features: Test button, adjustable current setting, self-holding operation
• Mounting Type: Industrial control panel mounting
• Application: Conveyors, feeders, pumps, lifting equipment, and motor-driven machinery
• Operating Temperature: 14–122°F
• Weight: Approx. 2.6 lb
• Use: Replacement overload protection relay for industrial equipment maintenance

Common Replacements:

• Tsubaki TSB152 Shock Relay
• Tsubaki TSB152-100 Shock Relay with current transformer
• Tsubaki SB Series electronic overload protection relay