SRMC11 series AC contactorDetailed product description：

SRMC11 series AC contactors (hereinafter referred to as contactors) are mainly used for connecting and disconnecting circuits in power systems with AC 50Hz (or 60Hz), rated working voltage up to 1000V, and rated working current up to 75A. And combined with appropriate thermal relays or electronic protection devices to form a motor starter to protect circuits that may experience overload.  
The contactor complies with IEC60947-4-1 and GB14048.4 standards.

Normal working and installation conditions

1. The ambient air temperature ranges from -5 ℃ to+40 ℃. The average value within 24 hours shall not exceed+35 ℃;
2. Altitude: not exceeding 2000m
3. Atmospheric conditions: At+40 ℃, the relative humidity of the air does not exceed 50%; At lower temperatures, there can be higher relative humidity, with an average minimum temperature of no more than+25 ℃ in the wettest month and an average maximum relative humidity of no more than 90% in that month, taking into account condensation that may occur on the product due to temperature changes;
4. Installation conditions: The inclination between the installation surface and the vertical surface shall not exceed 5 °;
5. Impact vibration: The product should be installed and used in a place without significant shaking, impact, and vibration.

Main parameters and technical performance of SRMC11 series AC contactors

1. Main specifications of contactors
Divided by current level: 9A, 12A, 16A, 25A, 30A, 40A, 50A, 65A, 75A.
According to the rated control power supply Us of the contactor coil, it is divided into AC 50Hz: 380V, 220V, 127V, 36V
2. Main technical parameters of the contactor
Action characteristics: suction voltage is 85% -110% Us, release voltage is 20% -75% Us;
The contact types and basic parameters of the auxiliary contacts and auxiliary contact modules of the contactor are shown in the following table:

product Model	Agreed to send Current A	Rated insulation Voltage A	Rated working voltage V		Rated working current A		Rated control capacity		Number of contact types
			communication	direct current	communication	direct current	communication	direct current	Dynamic combination	Dynamic interruption
SRMC11-09~25	ten	six hundred and sixty	three hundred and eighty	two hundred and twenty	zero point two six	zero point one four	AC-15 100VA	DC-13 30W	one	0
CA7									0	one
CAL7-11			two hundred and twenty	one hundred and ten	zero point four five	zero point two seven			one	one

3. The main parameters and technical performance indicators of the contactor are shown in the following table:

Contactor model	Rated Absolute Edge voltage V	Agreed to send current Ａ	Under the AC-3 usage category, it is possible to Controlling the Three Squirrel Cage Motor Maximum power kW			Number of operating cycles per hour Times/h （AC-3）	AC-3 electrical life (Ten thousand times)	machine lifespan (Ten thousand times)	Coil power Power/operation VA/VA	Selected fuses (SCPD) model
			380V	660V	1000V
SRMC11-09	six hundred and ninety	twenty-two	four	four	-	one thousand and two hundred	one hundred and twenty		60/9	RT16-20
SRMC11-12		twenty-four	five point five	five point five	-					RT16-25
SRMC11-16		twenty-eight	seven point five	five point five	-					RT16-32
SRMC11-25	one thousand	forty-five	eleven	eleven	-				85/10	RT16-50
SRMC11-30		fifty-five	fifteen	fifteen	-					RT16-63
SRMC11-40		seventy	eighteen point five	twenty-two	twenty-two		one hundred	one thousand and two hundred	190/15.2	RT16-80
SRMC11-50		one hundred	twenty-two	thirty	thirty					RT16-100
SRMC11-65		one hundred and fifteen	thirty	thirty-seven	thirty-three					RT16-125
SRMC11-75		one hundred and twenty-five	thirty-seven	forty	thirty-seven					RT16-160

structural characteristics

1. The contactor is a direct acting structure, with the contact arc extinguishing system located at the upper part and the magnetic system located at the lower part. The contacts are double break points and made of silver alloy. 25A and below body with movable or movable auxiliary contacts, 30-75A contactor body without auxiliary contacts, 40-75A side can be equipped with CAL7-11 auxiliary contacts, CA7 auxiliary contacts can be added to the top of the entire series of products, and mechanical interlocking can be installed on the side.
SRMC11-09-30 can be installed on 35mm standard card rails, while SRMC11-40-75 can be installed on 35mm or 75mm standard card rails.
3. Two SRMC11 AC contactors can form a reversible contactor.
4. Four pole contactors can be derived, among which SRMC11-09-25 has the same external dimensions as three poles.