Power supplies are designed on the basis of the most modern production technologies of switching power supplies with IGBT elements. Efficiency course depending on power supply load is in wide range almost constant. They are characterized also by very good dynamic properties, very low output voltage ripple, high efficiency to 92% and low interference intensity thanks to perfect filters. Power supply output is short circuit proof and galvanically separated from the input.

In different industry areas, where are technological equipments needed - switching power supplies.

Examples of application: devices for galvanotechnology, water neutralization, eloxal coating, electrophoresis surface treatment, electrochemical varnishing - “clean“, degreasing and any effective load.

TYPE SZ 20 24/230 Input voltage 1NPE 230 V ±10%, TN - C Input frequency 47 to 63 Hz Nominal output current 20 A Nominal output voltage 24 V DC Output current on demand 10 ... 40 A Output voltage on demand 5 ... 32 V DC Max. output power 480 W Ripple ≤ 1% of output voltage Adjustment range of output current and voltage 1 to 100% of nominal value Efficiency / power factor 0,96 / 92% Insulation strength 2 kV AC input, output against frame 4 kV AC transformer primary winding - secondary winding Weight approx. 7 kg Ingress protection IP 44 Dimensions (W x H x D) / box type 300 x 300 x 230 mm / plastic

TYPE SZ 100 24/400 Input voltage 3NPE 400 V ±10%, TN-S 1NPE 230 V ±10%, TN-C Input frequency 47 to 63 Hz Nominal output current 100 A Nominal output voltage 24 V DC Output current on demand 20 ... 100 A Output voltage on demand 5 ... 32 V DC Max. output power 2,4 kW Ripple ≤ 1% of output voltage Adjustment range of output current and voltage 1 to 100% of nominal value Efficiency / power factor 0,96 / 92% Insulation strength 2 kV AC input, output against frame 4 kV AC transformer primary winding - secondary winding Weight approx. 35 - 40 kg Ingress protection IP 20, IP 44 Dimensions (W x H x D) / box type podle výbavy 260 x 490 x 480 / N3 255 x 620 x 500 / N4 166 x 1040 x 365 / B3.1 500 x 500 x 210 / Rittal 400 x 500 x 230 / plastic	Rittal	B3.1	plastic
	N3		N4

TYPE SZ 200 8/400 Input voltage 3NPE 400 V ±10%, TN - S Input frequency 47 to 63 Hz Nominal output current 200 A Nominal output voltage 8 V DC Output current on demand 50 ... 200 A Output voltage on demand 5 ... 30 V DC Max. output power 1,6 kW Ripple ≤ 1% of output voltage Adjustment range of output current and voltage 1 to 100% of nominal value Efficiency / power factor 0,96 / 92% Insulation strength 2 kV AC input, output against frame 4 kV AC transformer primary winding - secondary winding Weight approx. 38 - 45 kg Ingress protection IP 20 Dimensions (W x H x D) / box type podle výbavy 255 x 620 x 500 / N4 166 x 1040 x 365 / B3.1

B3.1

N4

TYPE SZ 250 15/400 Input voltage 3NPE 400 V ±10%, TN - S Input frequency 47 to 63 Hz Nominal output current 250 A Nominal output voltage 15 V DC Output current on demand 100 ... 300 A Output voltage on demand 5 ... 30 V DC Max. output power 3,75 kW Ripple ≤ 1% of output voltage Adjustment range of output current and voltage 1 to 100% of nominal value Efficiency / power factor 0,96 / 92% Insulation strength 2 kV AC input, output against frame 4 kV AC transformer primary winding - secondary winding Weight approx. 38 - 45 kg Ingress protection IP 20, IP 43 Dimensions (W x H x D) / box type podle výbavy 255 x 620 x 500 / N4 166 x 1040 x 365 / B3.1 600 x 800 x 300 / Rittal plastic 500 x 700 x 270 / plastic	B3.1	Rittal plastic	N4
		plastic

TYPE SZ 500 15/400 Input voltage 3NPE 400 V ±10%, TN - S Input frequency 47 to 63 Hz Nominal output current 500 A Nominal output voltage 15 V DC Output current on demand 250 ... 600 A Output voltage on demand 5 ... 30 V DC Max. output power 7,5 kW Ripple ≤ 1% of output voltage Adjustment range of output current and voltage 1 to 100% of nominal value Efficiency / power factor 0,96 / 92% Insulation strength 2 kV AC input, output against frame 4 kV AC transformer primary winding - secondary winding Weight approx. 50 kg Ingress protection IP 20, IP 43, IP 54 Dimensions (W x H x D) / box type podle výbavy 250 x 1040 x 365 / B2.1 800 x 600 x 300 / plastic I 750 x 1065 x 400 / plastic II 600 x 1200 x 400 / Rittal 600 x 800 x 350 / N5.1	B2.1	N5.1	plastic I
		plastic II	Rittal

TYPE SZ 1000 15/400 Input voltage 3NPE 400 V ±10%, TN - S Input frequency 47 to 63 Hz Nominal output current 1000 A - B1, 1250 A - B1.1 Nominal output voltage 15 V DC - B1, 12 V DC - B.1.1 Output current on demand 500 ... 1250 A Output voltage on demand 5 ... 30 V DC Max. output power 15 kW Ripple ≤ 1% of output voltage Adjustment range of output current and voltage 1 to 100% of nominal value Efficiency / power factor 0,96 / 92% Insulation strength 2 kV AC input, output against frame 4 kV AC transformer primary winding - secondary winding Weight approx. 80 - 90 kg Ingress protection IP 20, IP 54 Dimensions (W x H x D) / box type podle výbavy 332 x 1060 x 365 / B1 332 x 1060 x 410 / B1.1 750 x 1315 x 400 / plastic

B1, B1.1

plastic

TYPE SZ 1500 15/400 Input voltage 3NPE 400 V ±10%, TN - S Vstupná frekvence 47 to 63 Hz Nominal output current 1500 A Nominal output voltage 15 V DC Output current on demand 750 ... 2000 A Output voltage on demand 5 ... 30 V DC Max. output power 22,5 kW Ripple ≤ 1% of output voltage Adjustment range of output current and voltage 1 to 100% of nominal value Efficiency / power factor 0,96 / 92% Insulation strength 2 kV AC input, output against frame 4 kV AC transformer primary winding - secondary winding Weight approx. 115 kg Ingress protection IP 20 Dimensions (W x H x D) / box type 490 x 1060 x 410 / B1.2

B1.2

Parallel connection of power supply modules B1 … B3.1:

Output voltage / current (DC)	6V	10V	15V	18V	20V	30V
100A	B3.1	B3.1	B3.1	B3.1	B3.1	B3.1
200A	B3.1	B3.1	B3.1	B3.1	B2.1	B2.1
250A	B3.1	B3.1	B3.1	B2.1	B2.1	B2.1
300A	B3.1	B3.1	B2.1	B2.1	B2.1	B1
500A	B2.1	B2.1	B2.1	B1	B1	B1
600A	B2.1	B2.1	B1	B1	B1	B1.1
1000A	B1	B1	B1	B1.2	B1.2	2x B1
1250A	B1.1	B1.1	B1.2	B1.2	2x B1	2x B1.2
1500A	B1.2	B1.2	B1.2	2x B1	2x B1	2x B1.2
2000A	B1.2	B1.2	2x B1	B1.1+B1.2	2x B1.2	3x B1.2
2500A	2x B1.1	2x B1.1	2x B1.2	2x B1.2	3x B1.2	4x B1.2
3000A	2x B1.2	2x B1.2	2x B1.2	3x B1.2	3x B1.2	4x B1.2
3600A	2x B1.2	2x B1.2	3x B1.2	3x B1.2	4x B1.2	5x B1.2
4000A	2x B1.2	2x B1.2	3x B1.2	4x B1.2	4x B1.2	6x B1.2
5000A	3x B1.2	3x B1.2	4x B1.2	4x B1.2	5x B1.2	7x B1.2
6000A	3x B1.2	3x B1.2	4x B1.2	5x B1.2	6x B1.2	8x B1.2
7000A	4x B1.2	4x B1.2	5x B1.2	6x B1.2	7x B1.2	-
8000A	4x B1.2	4x B1.2	6x B1.2	7x B1.2	-	-

Parallel - redundant connection of modules: by module or several modules failure is possible the power supply operation without interruption, but with lower output power (total output power reduced by output power of fault modules).

Standard accessory of power supply with analog control:

• analog inputs (current loop 0-20mA or voltage signal 0-10V) for parameter adjusting (I, U) from the master control system
• analog outputs (current loop 0-20mA or voltage signal 0-10V) for parameter monitoring (I, U) from the master control system
  

Standard accessory of power supply with analog control - M.8:

• on the terminal board of the power supply are terminals for RS 485 line connection
• Modbus communication protocol

SDO 22

Optional accessory: (note: SDO = remote control box)

Analog control of power supply by SDO 22 (SDO 26):

• start and stop of the power supply - output blocking, switch + LED
• adjusting of required current and voltage values by potentiometers
• displaying of measured values (I, U) by pointer (digital - SDO 26) measuring instruments
• maximum distance (cable length) of SDO box from the power supply is 100 m

SDO 42

Analog control of power supply by SDO 42:

• control panel with keyboard and LCD display and LED indicators
• start and stop of the power supply - output blocking, buttons
• digital measuring instruments of output current and voltage
• lighthouse signalling - red - stop or failure, green - operation, blue - additive dosing

Software for SDO xx with microprocessor control:

• eloxal coating, voltage and current pulsing, continuous rise of voltage and current by the ramp, ampere-hour meter, stop-watch etc.

Power supplies with output voltage:

• to 100 V DC - eloxal coating etc.
• to 400 V DC - electrophoresis surface treatment etc.

mNES

Equipment of power supply with control and monitoring module - „mNES“, which includes ampere-hour meter, stop-watch and dosing device:

• located on the front panel of the power supply
• or located on SDO xx box

DD 04-M.8

Diagnostic and adjusting display DD 04-M.8 for power supplies with M.8 control only, for total control of power supplies and also RS 485 communication setting

Semiconductor reverse devices to 2500A for often switching, approx. 1x per 1 second, by shorter times as 1 s on demand

Contactor reverse devices to 10000A for occasional switching approx. 10 x per day

Communication, monitoring and remote control of power supplies through connection of power supply control input to communication bus, their integration into the net, with utilization all of the available technologies used in automation technology

Customized power supplies:

The company NES Nová Dubnica s.r.o. also produces the power supplies according to customer requirements with other parameters - output voltage, output current, equipment of SDO (remote control box), special design version etc.

Block diagram - external connection and options:

Engineering and other services:

• projecting activities (hardware and software) - solutions of electric devices for galvanizing plants
• delivery of control systems including delivery of drives
• delivery of electric devices (distributors etc.)
• mounting and installation at the customer

Catalogue list - switching power supplies for galvanotechnology and electrochemistry