SPHSS13 | Circuit breaker

Model: SPHSS13
Estimated shipping size
: 1.5 inches x 7.0 inches x 12.0 inches
(3.8 cm x 17.8 cm x 30.5 cm)
Weight: 0 lb 8.0 oz (0.2 kg)
Accuracy :+1-0.075%(including nonlinearity, hysteresis and repeatability)
Output signal :4-20 mA HART
– Process connection :1/2 “-14 NPT internal thread
– Electrical connection :M20x1.5
– Entrance protection :IP67

Materials: Stainless steel, Hastelloy C-276 and tantalum
SPHSS13 circuit breaker is a switching device that can turn off, carry and break the current under normal circuit conditions, and can turn off, carry and break the current under abnormal circuit conditions within a specified time. The function of the circuit breaker includes cutting off and connecting the load circuit, as well as cutting off the fault circuit, preventing the expansion of the accident and ensuring safe operation.

SPHSS13 circuit breaker according to its range of use can be divided into high-voltage circuit breaker and low-voltage circuit breaker, high and low-voltage line division is more vague, generally called more than 3kV high-voltage electrical appliances. Low-voltage circuit breaker is also known as automatic air switch, the function is equivalent to the knife switch, overcurrent relay, voltage loss relay, thermal relay and leakage protector and other electrical parts or all of the function of the sum, is an important low-voltage distribution network in the protection of electrical appliances.

The working principle of SPHSS13 circuit breaker is that when the circuit is short circuit or serious overload, the armature of the overcurrent trip device draws, so that the free trip mechanism acts, and the main contact disconnects the main circuit. When the circuit is overloaded, the heat element of the thermal trip device heats up to bend the bimetal sheet and push the free trip mechanism to act. When the circuit is under voltage, the armature of the undervoltage trip device is released, which also makes the free trip mechanism operate.