About the Ultra Thin EDR Series DIN Rail Switching Power

The Ultra Thin EDR Series DIN Rail Switching Power is part of the ELEHPD EDR-Series range. Ultra Thin EDR Series DIN Rail Switching Power from the ELEHPD EDR-Series range. ELEHPD manufactures and exports low voltage electrical products from Yueqing, Zhejiang, China, supplying distributors, panel builders, M&E contractors and OEM buyers worldwide.

Full catalogue description: Ultra Thin EDR Series 240W DIN Rail Switching Power Supply

Typical applications

Motor control centres and pump or fan starters
Machine building, conveyors, packaging and CNC equipment
HVAC control panels and building automation
Water treatment, irrigation and pumping stations
Panel retrofits replacing electromechanical control gear

How to specify the right EDR-Series

Size the contact rating for the inductive load, not just the resistive current (AC-3 duty for motors)
Check the coil voltage and frequency available in the panel: 24 V DC, 110 V, 230 V or 400 V AC
Confirm the auxiliary contact count needed for the control and indication circuit
Match the enclosure rating to the environment (IP20 inside a panel, IP65 on the machine)

Specifications

Ultra Thin EDR Series 240W DIN Rail Switching Power Supply

Q: 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.

Q: 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.

Q: 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.

Q: 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.

SPECIFICATIONS
OUTPUT
Model	EDR-240-24	EDR-240-48
DC Voltage	24V	48V
Rated Current	10A	5A
Current Range	0-10A	0-5A
Rated Power	240W	240W
Ripple & Noise	150mVp-p	360mVp-p
Voltage Adj. Range	21-28V	43-53V
Voltage Tolerance	±1%	±1%
Setup, Rise Time	800ms,40ms/230VAC 800ms,40ms/115VAC at full load
Hold Up Time	24ms/230VAC 24ms/115VAC at full load
Voltage Range	176~264VAC 47~63Hz; 240~370VDC
AC Current	2.8A/115V 1.4A/230V
Efficiency	84%	85%
Inrush Current	Cold start 27A/115V 45A/230V
Leakage Current	<3.5mA/240VAC
Over Load	105%~150%
Protection type: Constant current limiting, recovers automatically after fault condition is removed
Over Voltage	30-36V	54-60V
Protection type: Shut down o/p voltage, re-power on to recover
Over Temp.	100ºC±5ºC(TSW1)
Protection type: Shut down o/p voltage, recovers automatically after temperature goes down
Working Temp., Humidity	-10ºC~+70ºC; 20%~90%RH
Storage Temp., Humidity	-20ºC~+85ºC; 10%~95%RH
Vibration	10~500Hz, 2G 10min./1cycle, period for 60min, each along X, Y, Z axes
Withstand Voltage	I/P-O/P: 3KVAC I/P-FG: 1.5KVAC O/P-FG: 0.5KVAC
Isolation Resistance	I/P-O/P, I/P-FG, O/P-FG: 100M Ohms / 500VDC
Safety Standard	Design refer to UL508,UL60950-1, TUV EN60950-1
EMC Standard	EN55011,EN55022,EN61000-3-2,-3,EN61000-4-2,3,4,5,6,8,11,ENV50204,EN55024,EN61000-6-2(EN50082-2)
Dimension	63125.2115mm(LWH)
Weight	0.85Kg
Packing	20pcs/17.5Kg/1.2CUFT
NOTE
1. All parameters NOT specially mentioned are measured at 230VAC input, rated load and 25ºC of ambient temperature. 2. Ripple & noise are measured at 20MHz of bandwidth by using a 12" twisted pair-wire terminated with a 0.1μ & 47μ parallel capacitor. 3 .Tolerance: includes set up tolerance, line regulation and load regulation. 4. 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. 5 . Derating may be needed under low input voltages. Please check the derating curve for more details.

Frequently asked questions about the Ultra Thin EDR Series DIN Rail Switching Power

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.

Related EDR-Series models

EDR-75 Adjustable Single Output EDR SMPS AC to DC 75W DIN Rail Power Supply

EDR 120W Single Output Switching Power Supply DIN Rail SMPS

Ultra Thin EDR Series DIN Rail Switching Power