CLB-053-27E3N-W-A is a single-pole thermal circuit protector designed for overcurrent protection in household appliances, transportation, marine, and power supply applications. The device is rated for 5 amperes at 125-250VAC or 32VDC, featuring a 3/8" UNS threaded mounting hole (27 pitch) with a plastic Type E bushing and no mounting nut. It incorporates a push-to-reset mechanism with a screw terminal (Type J) configuration for reliable electrical connection. The protector operates across a temperature range of -10°C to +60°C, maintains a voltage drop below 0.25V, and provides an interrupting capacity of 2500 amps at 32VDC with 2500VAC dielectric strength. This compact design meets UL, CUL, CSA, TUV, and CE approvals, including UL1500/ISO8846 for marine ignition protection, making it suitable for demanding industrial and consumer applications requiring thermal protection and reset capability.