You searched for "rectangular push button cap"
ETA
ETA Thermal Circuit Breaker - 1180 Single Pole 250V Voltage Rating DIN Rail Mount, 2A Current Rating
Part: 1180-01-2A
DIN rail mounted two amp thermal breaker with button reset for 250V circuits.
ETA
ETA Thermal Circuit Breaker - 1180 Single Pole 250V Voltage Rating DIN Rail Mount, 10A Current Rating
Part: 1180-01-10A
10-amp thermal circuit breaker for electrical panel protection and overcurrent safeguarding.
ETA
ETA Thermal Circuit Breaker - 1180 Single Pole 250V Voltage Rating DIN Rail Mount, 1A Current Rating
Part: 1180-01-1A
Single pole thermal circuit breaker for 250V electrical systems with 1A protection rating.