GK - Thyristor Rectifiers

FromGustav Klein GmbH & Co. KG

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GR-3811 with touch screen TFT display. GR-3812 with LC-Display. Equipment: Thyristor rectifier 6-pulse (12-pulse optional). Input contactor for rectifier. Automatic charge. Analogue control. Microprocessor-controlled monitoring. Digital display with event ring memory (non-volatile): GR-3811: colour TFT panel with touch screen, GR-3812: LC display with LED indicators in mimic diagram. Power unit with two-stage temperature monitoring (Warning message / shutdown). Galvanic isolation between input and output. 8 remote signals (potential-free contacts, configurable). RS232 interface. Can be connected in parallel. Programmable battery test.

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User-friendly, intuitive operation
3 Charging characteristics IU (automatic)
Fanless design (natural air cooling by convection)
Design according to current standards

Specific electrical parameters, e.g. frequency / voltage
Specific mechanical parameters, e.g. protection class (IP21 and higher), base plate
Equipment and functionalities, e.g.: Protective devices (MCCB, surge arrester …), monitoring (fan, earth fault …), interfaces (Profibus, Modbus, SNMP …), temperature-controlled battery charging …
More on request

GR-3811 and GR-3812

Rated voltage: 24 / 48 / 60 / 110 / 120 / 220
Rated current: Up to 1500 A
Rectifier version: Galvanically isolated, thyristor 6-pulse, >500 A 12-pulse
Input voltage: 3/N/PE AC 400/230 V +/-10%
Voltage tolerance (output) ±1 %
Frequency: 50 Hz ±5 %
Charging code: IU charge acc. DIN 41772 3 (continuous, heavy and forming charge)
Voltage ripple: <2% eff. without battery
Security: 1 acc. EN 60950-1
Protective conductor current: < 5 % INom typ. 50 mA
Protection class: IP 20 (floor IP00) according to EN 60529
Permissible installation altitude: 1000 m above sea level min. Air pressure 870 hPa
Installation site

Premises with restricted access area
Installation on concrete or another non
flammable surface

Connection: front, bottom - accessible after opening the door
Display and control unit

GR-3811: Color TFT - panel with touch screen display
GR-3812: LC-Display

Remote signalling (terminal connection) Contact rating

AC 250 V 6 A 1500 W
DC 250 V 0,4 A 100W
DC 60 V 0,7 A 42 W
DC 24 V 6 A 144 W

8 signals / 2 potential-free change-over contacts per signal

Operation
Battery discharge
Forewarning
Deep discharge
Mains fault
System malfunction
3 x reserve

Test voltage
Input / Output: 5.3 kVDC
Input / body: 2.3 kVDC
Output / body: 2.8 kVDC

Low Voltage Directive: 2014/35/EU
EMC Directive: 2014/30/EU
RoHS Directive: 2011/65/EU
Permissible environmental conditions:
Storage according to EN 60721-3-1: 1K21 / 1M11 +5 to +40 °C
Transport according to EN 60721-3-2: 2K12 / 2M4 -45 to +70 °C
Operation according to EN 60721-3-3: 3K22 / 3M11 +5 to +40 °C
5-85 % rel. Humidity, no condensation: Pollution degree 2