The 131661 is a versatile electronic component featuring a double-level PCB terminal suitable for various wiring configurations. It incorporates a proprietary current transformer designed for disconnect alarm applications and is mounted via screw fixing on the back or secured with cable ties. The component includes a safety relay unit with a 3PST-NO (Category 4) contact configuration, supporting up to 5 A current, and offers auxiliary SPST-NC contacts with one or two channels. Additionally, it is compatible with a power supply providing 100 W output at 24 VDC, and can be integrated with programmable temperature controllers capable of storing multiple programs and segments. The device also features a DPDT key switch with three positions and latching operation, as well as a diffuse fiber optic sensor head with a 1.2 mm diameter sleeve length of 90 mm, designed for direct mounting on a fiber amplifier.
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