What is the difference between a contactor and a relay?

A contactor is built for switching power circuits repeatedly at high current, often with motor duty ratings (AC-3) and arc-suppressing chambers. A relay switches control signals at low current. In practice: contactor for the motor, relay in the control circuit that drives the contactor coil.

How do I calculate the correct contactor size for a motor?

Use the motor's full-load current, apply the AC-3 rating for the operating voltage, and allow for the number of starts per hour. As a rule of thumb, the contactor's AC-3 rating should be at least equal to the motor FLC, then step up one frame if the duty is heavy.

Do you supply the coil voltage I need?

Coil voltages are specified per order. Send the model number, coil voltage and frequency you require and we will confirm availability and lead time.

Are auxiliary contacts included?

Base models come with the standard auxiliary contact configuration for that frame. Add-on auxiliary blocks and mechanical interlocks can be quoted with the contactor.

Серия NES — модульные блоки питания POWER SUPPLY NES-200W NES-200W HIGH — поставка с завода

О изделии — Серия NES — модульные блоки питания POWER SUPPLY NES-200W NES-200W HIGH

Серия NES — модульные блоки питания POWER SUPPLY NES-200W NES-200W HIGH — изделие из линейки «Серия NES — модульные блоки питания» производства ELEHPD. Раздел «Промышленная автоматика» включает датчики, источники питания и коммутационные устройства для шкафов управления и автоматизированных линий: индуктивные и фотоэлектрические датчики, DIN-источники, твёрдотельные реле. Изделия изготавливаются по стандартам IEC/EN, имеют маркировку CE и поставляются напрямую с завода дистрибьюторам, оптовым покупателям и сборщикам щитового оборудования. Технические характеристики и коммерческое предложение предоставляются по запросу.

Область применения

Типовые области применения: распределительные щиты и вводно-распределительные устройства жилых и коммерческих объектов; промышленные установки и машиностроение; объекты инфраструктуры и электроснабжения; проекты OEM-заказчиков и щитовых сборок.

Как правильно выбрать: Серия NES — модульные блоки питания

При подборе укажите: номинальный ток, отключающую способность, количество полюсов, тип характеристики (B, C или D), род тока и напряжение, способ монтажа (DIN-рейка, панель), а также климатическое исполнение. Наши инженеры подберут аналог по вашему спецификации или по образцу.

Технические характеристики

NES-200W HIGH EFFICIENCY SWITCHING POWER SUPPLY 200W

Features :

•AC input range selectable by switch

•Protections: Short circuit / Overload / Over voltage/

Over temperature

•Cooling by free air convection

•Withstand 300vac surge input for 5 second

•Built-in constant current limiting circuit

•100% full load burn-in test

•LED indicator for power on

•Fixed switching frequency at 90KHz

•Low cost,high reliability

•2 years warranty

Details:

MODEL	NES-200-5	NES-200-7.5	NES-200-9	N ES-200-12	NES-200-15	NES-200-24	NES-200-48
OUTPUT	DC VOLTAGE	5V	7.5V	9V	12V	15V	24V	48V
RATED CURRENT	40A	27A	11.2A	17A	14A	8.8A	4.4A
CURRENT RANGE	0 ~ 40A	0 ~ 27A	0 ~ 11.2A	0 ~ 17A	0 ~ 14A	0 ~ 8.8A	0 ~ 4.4A
RATED POWER	200W	200W	200W	200W	200W	200W	200W
RIPPLE & NOISE (max.) Note.2	80mVp-p	120mVp-p	120mVp-p	120mVp-p	120mVp-p	120mVp-p	150mVp-p
VOLTAGE ADJ. RANGE	4.75 ~ 5.5V	7.13 ~ 8.3V	8.55 ~ 9.9V	11.4 ~ 13.2V	14.25 ~ 16.5V	22.8 ~ 26.4V	45.6 ~ 52.8V
VOLTAGE TOLERANCE Note.3	±2.0%	±1.0%	±1.0%	±1.0%	±1.0%	±1.0%	±1.0%
LINE REGULATION Note.4	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%
LOAD REGULATION Note.5	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%	±0.5%
SETUP, RISE TIME	500ms, 20ms/230VAC 500ms, 20ms/115VAC at full load
HOLD UP TIME (Typ.)	30ms/230VAC 25ms/115VAC at full load
INPUT	VOLTAGE RANGE	85 ~ 132VAC / 176 ~ 264VAC selected by switch 248 ~ 373VDC
FREQUENCY RANGE	47 ~63Hz
EFFICIENCY(Typ.)	80%	81%	81%	83%	84%	86%	86%
AC CURRENT (Typ.)	2A/115VAC 1.2A/230VAC
INRUSH CURRENT (Typ.)	COLD START 36A
LEAKAGE CURRENT	<2mA/ 240VAC
PROTECTION	OVERLOAD	105 ~ 150% rated output power
Protection type : Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE	5.75 ~6.75V	8.6 ~ 10.1V	10.4 ~ 12.2V	13.8 ~ 16.2V	17.25 ~ 20.25V	27.6 ~ 32.4V	55.2 ~ 64.8V
Protection type : Shut down O/P voltage, recovers automatically after temperature goes down
ENVIRONMENT	WORKING TEMP.	-20 ~ +60”C (Refer to "Derating Curve")
WORKING HUMIDITY	20 ~ 90% RH non-condensing
STORAGE TEMP., HUMIDITY	-40 ~ +85°C, 10 ~95% RH
TEMP. COEFFICIENT	±0.03%/°C (0 ~ 50°C)
VIBRATION	10 ~ 500Hz, 2G 10min./1cycle, period for60min. each along X, Y, Z axes
SAFETY & EMC (Note 6)	SAFETY STANDARDS	UL60950-1, CB(IEC60950-1),CCC GB4943 approved
WITHSTAND VOLTAGE	I/P-O/P:1.5KVAC I/PFG:1.5KVAC O/P-FG:0.5KVAC
ISOLATION RESISTANCE	I/P-O/P, I/P-FG, O/P-FG:100M Ohms / 500VDC / 25°C/ 70% RH
EMC EMISSION	Compliance to EN55022 (CISPR22) Class B, EN61000-3-2,-3
EMC IMMUNITY	Compliance to EN61000-4-2,3,4,5,6,8,11, EN55024, EN61000-6-1, light industry level, criteriaA
OTHERS	MTBF	271.9K hrs min. MIL-HDBK-217F (25°C)
DIMENSION	21511550mm (LWH)
PACKING	0.93Kg; 12pcs/12Kg/0.92CUFT
NOTE	1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25°C of ambient temperature. 2.Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a0.1uf& 47uf parallel capacitor. 3.Tolerance : includes set up tolerance, line regulation and load regulation. 4.Please connect positive pole of input voltage with mark “N” of terminal block, connect negative pole of input voltage with mark “L” of terminal block, using DC voltage for input voltage.