CT19B series spring operated mechanismDetailed product description：

Overview
The CT19B spring operated mechanism can be used to operate ZN28 series high-voltage vacuum circuit breakers and other types of vacuum circuit breakers with equivalent closing power in various fixed switchgear. Its performance meets the requirements of GB 1984 "AC High Voltage Circuit Breakers" and the "Technical Conditions" of this product, and all indicators meet or exceed the "IEC" standard.

There are two energy storage methods for the closing spring of the mechanism: electric motor energy storage and manual energy storage; There are three types of opening operations: opening electromagnet, overcurrent trip electromagnet, and manual button operation; There are two types of closing operations: closing electromagnet and manual button operation.

The specifications and matching components of the institution are shown in the following table:

specification	weight (kg)	Volume width * width * depth (mm)	Electric motor input power (w)	Closing spring (mm)	Match the breaking current of the vacuum circuit breaker (KA)
CT19B-Ⅰ	thirty-eight	530*370*170	seventy	Φ7.5	twenty
CT19B-Ⅱ	thirty-eight	530*370*170	seventy	Φ8	thirty-one point five
CT19B-Ⅲ	thirty-eight	530*370*170	one hundred and twenty	Φ8+Φ4	forty

Main technical parameters of CT19B series spring operating mechanism
2. The closing and opening electromagnet adopts a spiral tube electromagnet, and its technical parameters are shown in the following table:

Rated working voltage (V)	~110	~220	~380	-48	-110 combined	-110 points	-220 combined	-220 points
Rated working current (A)	four point three	three point eight		three point three	two point three	four	one point one six	two
Rated electrical power (W)	< 437	< 836		< 158	< 253	< 440	< 255	< 440
Coil resistance value at 20 ℃ (Ω)	8.5+-0.5	19.2+-3		15+-0.75	47+-2.8	27.5+-1.7	190+-11	106+-7
Normal closing operating voltage range	85%~110%~rated working voltage
Normal voltage range for circuit breaker operation	65%~120% of the rated working voltage can be reliably tripped, and tripping is not allowed when the rated working voltage is less than 30%.

3. The working rotation angle of the output shaft of the mechanism is 50-55 degrees.
4. Combination and code of release: 110, 100, 111, 114, 1114, 1134, 400

Installation Position Diagram of CT19B Series Spring Operating Mechanism

Note: If the user has special requirements, they can be determined through negotiation.

CT19B series spring operated mechanism