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.

О изделии — Серия EDR — промышленные DIN-источники EDR Single Output Switching Power Supply DIN

Серия EDR — промышленные DIN-источники EDR Single Output Switching Power Supply DIN — изделие из линейки «Серия EDR — промышленные DIN-источники» 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 EDR — промышленные DIN-источники

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

EDR 120W Single Output Switching Power Supply DIN Rail SMPS

MODEL	EDR-120-12	EDR-120-24	EDR-120-48
OUTPUT	DC VOLTAGE	12V	24V	48V
RATED CURRENT	10A	5A	2.5A
CURRENT RANGE	0 ~ 10A	0 ~ 5A	0 ~ 2.5A
RATED POWER	120W	120W	120W
RIPPLE & NOISE (max.) Note.2	100mVp-p	120mVp-p	150mVp-p
VOLTAGE ADJ. RANGE	12 ~ 14V	24 ~ 28V	48 ~ 55V
VOLTAGE TOLERANCE Note.3	±2.0%	±1.0%	±1.0%
LINE REGULATION	±0.5%	±0.5%	±0.5%
LOAD REGULATION	±1.0%	±1.0%	±1.0%
SETUP, RISE TIME	1200ms, 60ms/230VAC 2500ms, 60ms/115VAC at full load
HOLD UP TIME (Typ.)	16ms/230VAC 10ms/115VAC at full load
INPUT	VOLTAGE RANGE Note.6	90 ~ 264VAC 127 ~ 370VDC	[DC input operation possible by connecting AC/L(+), AC/N(-)]
FREQUENCY RANGE	47 ~ 63Hz
EFFICIENCY (Typ.)	85%	87.5%	88.5%
AC CURRENT (Typ.)	2.25A/115VAC 1.3A/230VAC
INRUSH CURRENT (Typ.)	20A/115VAC 35A/230VAC
LEAKAGE CURRENT	<1mA / 240VAC
PROTECTION	OVERLOAD	105 ~ 130% rated output power
Protection type : Constant current limiting, recovers automatically after fault condition is removed
OVER VOLTAGE	14 ~ 17V	29 ~ 33V	56 ~ 65V
Protection type : Shut down o/p voltage, re-power on to recover
OVER TEMPERATURE	Shut down o/p voltage, re-power on to recover
ENVIRONMENT	WORKING TEMP.	-20 ~ +60ºC (Refer to "Derating Curve")
WORKING HUMIDITY	20 ~ 95% RH non-condensing
STORAGE TEMP., HUMIDITY	-40 ~ +85ºC, 10 ~ 95% RH
TEMP. COEFFICIENT	±0.03%/ºC (0 ~ 50ºC)
VIBRATION	Component:10 ~ 500Hz, 2G 10min./1cycle, 60min. each along X, Y, Z axes; Mounting: Compliance to IEC60068-2-6
SAFETY & EMC (Note 4)	SAFETY STANDARDS	UL508, TUV EN62368-1, EAC TP TC 004, BSMI CNS14336-1 approved;(meet EN60204-1)
WITHSTAND VOLTAGE	I/P-O/P:3KVAC I/P-FG:2KVAC O/P-FG:0.5KVAC
ISOLATION RESISTANCE	I/P-O/P, I/P-FG, O/P-FG:>100M Ohms / 500VDC / 25ºC/ 70% RH
EMC EMISSION	Compliance to EN55032 (CISPR32) Class A, EN61000-3-2,-3, EAC TP TC 020, CNS13438 Class A
EMC IMMUNITY	Compliance to EN61000-4-2,3,4,5,6,8,11, EN55024, EN61000-6-2 (EN50082-2), heavy industry level, criteria A, EAC TP TC 020
OTHERS	MTBF	474.6K hrs min. MIL-HDBK-217F (25ºC)
DIMENSION	40125.2113.5mm (WHD)
PACKING	0.6Kg; 20pcs/13Kg/1.16CUFT
NOTE	All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25ºC of ambient temperature. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1uf & 47uf parallel capacitor. Tolerance : includes set up tolerance, line regulation and load regulation. The power supply is considered a component which will be installed into a final equipment. The final equipment must be re-confirmed that it still meets EMC directives. lnstallation clearances : 40mm on top, 20mm on the bottom, 5mm on the left and right side are recommended when loaded permanently with full power. ln case the adjacent device is a heat source, 15mm clearance is recommended. Derating may be needed under low input voltage. Please check the derating curve for more details. The ambient temperature derating of 3.5ºC/1000m with fanless models and of 5ºC/1000m with fan models for operating altitude higher than 2000m(6500ft}.