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INSTALLATION INSTRUCTION 

 

 

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© 2020 Bel Power Solutions & Protection

 

BCM.00442_AA3

 

 

FIG.1 - CONNECTIONS 

FIG.2 - DIMENSIONS 

FIG.3 - DISTANCES 

 

Just for reference 

(1)

 

AC/DC input 

(2)

 

Wire bridge for 120 VAC 

(3)

 

DC output (load) 

(4)

 

Diagnostic Output (dry contact, NC output OK) 

(5)

 

Green LED: Output OK 

(6)

 

Red LED: Overload 

(7)

 

Output voltage adjustment 

(8)

 

Selectable limitation mode (Hiccup mode, C.C. mode)  

 

 

 

 

Input AC Line: 

 

L = Line 

 

N = Neutral 

 

 = Earth ground 

Input DC Line: 

 

L = + Positive DC 

 

N = - Negative DC 

 

= Earth ground 

Output: 

 

+ = Positive DC 

 

- = Negative DC 

 

Dry contact = NC 

 

Dimension 


mm (inc) 

80 (3.15) 

137.5 (5.41) 

127 (5.00) 

Distance 


mm (inc) 

20 (0.8) 

100 (3.9) 

 
 

FIG.4 - MOUNTING / DISMOUNTING INSTRUCTIONS 

 
For DIN rail fastening according to IEC 60715 TH35-7.5(-15) 
Mounting as shown in figure, with input terminals on lower side, with suitable cooling and maintaining a proper distance between adjacent devices as specified in the 
Installation Instruction of each family. 

 
 

MOUNTING: 

 

1.

 

Tilt the unit slightly backwards. 

2.

 

Fit the unit over the top edge of the rail. 

3.

 

Slide it downward until it hits the stop. 

4.

 

Press against the bottom for locking. 

 

 

 

 

DISMOUNTING: 

 

1.

 

Pull down the slide clamp lever 

2.

 

Tilt the unit upward 

3.

 

Unhook the unit from the rail

 

 

 

1 & 2 

 

 

Summary of Contents for LDN481 Series

Page 1: ...liquids or foreign objects to enter into the products To avoid sparks do not connect or disconnect the device before having previously turned off input power and wait for internal capacitors discharge minimum 1 minute GEFAHR VON VERBRENNUNGEN EXPLOSIONEN FEUER STROMSCHLAG PERSONENSCHÄDEN Führen Sie niemals Arbeiten an spannungsführenden Teilen durch Gefahr von tödlichen Verletzungen Das Gehäuse de...

Page 2: ...or SELV and PELV circuitry Pay attention LDN481 72 is not SELV Vout can be adjusted with a potentiometer to a wide range see Fig 1 Check Vout before connecting the power supply to the load With output voltage set to the max value the continuous current x voltage must not exceed the nominal power 8 PARALLEL CONNECTION AND REDUNDANCY Power supplies can be connected in parallel to increase power For ...

Page 3: ...tive DC Earth ground Output Positive DC Negative DC Dry contact NC Dimension W D H mm inc 80 3 15 137 5 5 41 127 5 00 Distance A B mm inc 20 0 8 100 3 9 FIG 4 MOUNTING DISMOUNTING INSTRUCTIONS For DIN rail fastening according to IEC 60715 TH35 7 5 15 Mounting as shown in figure with input terminals on lower side with suitable cooling and maintaining a proper distance between adjacent devices as sp...

Page 4: ...ers SPD according to local regulations FIG 7 INPUT CONNECTIONS AC LINE DC LINE FIG 8 ENVIRONMENT OPERATING TEMPERATURE DERATING 40 C to 70 C 5 95 r H non condensing UL Certified up to 45 C 7 2 W C over 45 C NOTES Data may change without prior notice in order to improve the product Please refer to the latest version of the Installation Instruction for each product by visiting belfuse com power solu...

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