Phoenix Contact's thermal circuit breaker protects equipment with higher nominal currents

Phoenix Contact offers TCP with 16 A and 20 A plugs to protect equipment with higher nominal current. As an extension of the TCP family, these plugs provide the same reliable overload protection in a thin package. The original TCP plugs used a 6 mm wide base, and these plugs require a 10 mm wide base to accommodate higher amperage ratings. Plug fits PT 10-FSI/C standard junction box base with or without LED status indication.

Combined with the terminal base, applications up to 250 VAC and 65 VDC can be equipped with basic protection. TCP products are designed to replace existing fuses with resealable versions to minimize maintenance. The two-piece construction provides easy replacement. Terminal bridge shaft can easily realize potential distribution, greatly reducing the installation workload. The series offers two different operating characteristics: on/off and jump reset or jump reset only.

Thermal circuit breakers provide optimal overload protection for inductive and resistive loads in distribution systems, control cabinets, and other equipment. Thermal circuit breakers are ideal for applications involving large starting currents. For example, they are ideal for protecting actuators, sensors, motors, heating elements and fans, lighting, solenoid valves, transformers and on-board networks. They can resist high starting currents, such as those that occur when starting a motor or switching on a transformer. However, compared with other protection technologies, thermal circuit breakers cannot provide fast short-circuit protection.

The thermal circuit breaker usually travels through a bimetallic strip. If a fault occurs, the bimetallic sheet will heat up and disconnect the circuit. In general, the higher the overload, the faster the thermal circuit breaker will trip. The device can be turned back on at any time.

Features

● Approved by UL 1077

● Compact design, only 10 mm wide

● Suitable for flat type fuse holder designed according to ISO 8820-3 (DIN72581-3)

● Bridgeable design

● Rated for AC and DC applications