CT19A,CT19B type spring operated mechanismDetailed product description：

Overview
The CT19 spring operated mechanism can be used to operate various types of ZN28 indoor high-voltage vacuum circuit breakers with breaking currents of 20KA, 31.5KA, and 40KA, or to operate other types of vacuum circuit breakers with equivalent closing power.
The CT19 produced by our factory is mainly divided into two types: fixed cabinet (CT19B) and handcart (CT19A). The CT19B model is an improved version based on the miniaturization of the CT19A model, with more stable and reliable mechanical properties.
There are two energy storage methods for the closing spring of the mechanism: electric motor energy storage and manual energy storage. There are four types of opening operations: opening electromagnet, overcurrent trip electromagnet, manual button, and undervoltage trip electromagnet.

Technical parameters of CT19A and CT19B spring operated mechanisms
1. The energy storage motor adopts a permanent magnet DC motor, and its technical parameters are shown in the table below

model	66ZY-CJ01	66ZY-CJ11
Rated working voltage (V)	one hundred and ten	two hundred and twenty
Rated input power of motor (W)	70-150
Normal operating voltage range	85% -110% rated working voltage
Rated working voltage energy storage time	<=12

*If users need to use AC power for energy storage, they can add a full wave rectifier power supply (bridge stack) to supply the energy storage motor for operation
When using a 400mm long energy storage operating handle for manual energy storage, the operating force should not be less than 140N
3. The closing electromagnetic adopts a spiral tube electromagnetic coil, and its technical parameters are shown in the table below

Rated working voltage (V)	-110	-220	-380	-48	-110	-220
Rated working current (A)	five	three		three point seven eight	twenty-three	one point seven seven
Rated working power (W)	five hundred and fifty	six hundred and sixty		one hundred and eighty-one point four	two hundred and fifty-three	three hundred and ninety
Wire resistance at 20 ° C (W)	7.2±1	20.7±2.5		12.7±2.5	47±2.5	124±5
Normal operating voltage range	85% -110% rated working voltage

4. The opening electromagnet and overcurrent tripping electromagnet powered by an independent power source adopt a screw type electromagnet.
(1) The overcurrent trip electromagnet is powered by current mutual inductance, and its circuit relies on the action of the packaged overcurrent relay contacts to close. The action value is set by the current relay. The rated current of the overcurrent trip electromagnet is 5A, and the pure resistance is 2.6 ± 0.5W (the coil is connected to the bridge stack, eliminating inductive reactance).
(2) Technical parameters of the opening electromagnet powered by an independent power source (see table below) 1. The energy storage motor adopts a permanent magnet DC motor, and its technical parameters (see table below)

Rated working voltage (V)	-110	-220	-380	-48	-110	-220
Rated working current (A)	five	three		three point seven eight	twenty-three	one point seven seven
Rated working power (W)	five hundred and fifty	six hundred and sixty		one hundred and eighty-one point four	two hundred and fifty-three	three hundred and ninety
Wire resistance at 20 ° C (W)	7.2±1	20.7±2.5		12.7±2.5	47±2.5	124±5
Normal operating voltage range	65% -120% rated working voltage, no tripping below 30% rated voltage

Release combination code	Name and code of release device
	Overcurrent release electromagnet (only)	Opening electromagnet (only)
one hundred	one	0
one hundred and ten	two	0
one hundred and eleven	three	0
one hundred and four	one	one
one hundred and fourteen	two	one
four hundred	0	one

Schematic diagram of CT19 structure

Schematic diagram of CT19B structure

CT19A Right Operation CT19A Left Operation