tin-plated 3 max. 137 m /h DC centrifugal fans Series RG 125 N 180 x 180 x 40 mm 1) Possible special versions: Material: Scroll housing: GRP 1) (See chapter DC fans - specials) Impeller: GRP - Speed signal Housing base: Sheet steel - Go / No-go alarm Direction of air flow: Axial: Intake - Alarm with limit speed Centrifugal: Exhaust - External temperature sensor Connection: Via single wires AWG 22, - Internal temperature sensor TR 64 - PWM control input 48 V model: Flat plug - Analogue control input 6.3 x 0.8 mm for protective earth - Protection against moisture Highlights: Backwards-curved impeller - Protection against salt fog Mass: 730 g - Type of protection: IP 54 / IP 68 1) Fibreglass-reinforced plastic Nominal data 3 Type m /h CFM VDC VDC Bel(A) / Watts rpm C Hours Hours RG 125-19/12 NM 60,0 35,3 12 7...15 4,8 2,0 1 750 -30...+75 70 000 / 30 000 117 500 RG 125-19/12 N 87,5 51,5 12 7...15 5,8 5,2 2 550 -30...+75 62 500 / 27 500 105 000 RG 125-19/14 NM 60,0 35,3 24 12...28 4,8 2,0 1 750 -30...+75 70 000 / 30 000 117 500 RG 125-19/14 N 87,5 51,5 24 12...28 5,8 4,9 2 550 -30...+75 62 500 / 27 500 105 000 RG 125-19/18 N 87,5 51,5 48 36...56 5,8 4,8 2 550 -30...+75 62 500 / 27 500 105 000 RG 125-19/18 NH 137 80,6 48 36...56 7,0 19,0 4 000 -20...+70 55 000 / 27 500 92 500 Subject to alternations 420 3 360 300 240 2 180 120 1 60 04200 6080 CFM 20 40 60 80 100 120 m/h 100 Pa in H O 0,4 0,8 1,2 2 Air flow Air flow Nominal voltage Voltage range Sound power level Sintec sleeve bearings Ball bearings Input power Nominal speed Temperature range Service life L (40 C) 10 ebm-papst Standard Service life L (T ) 10 max ebm-papst Standard Life expectancy L 10IPC (40 C) see page 17 CurveSpeed signal /12 Speed-proportional, square-wave signal for external monitoring of the fan motor speed 2, 3, or 6 pulses per revolution TTL-compatible Integrated pull-up resistor Connection via separate cable The sensor signal also serves as a major comparison variable for setting and maintaining the setpoint speed for interactive or controlled cooling with one or more interconnected fans. Electrical hookup Signal data Type VDC mA VDC mA mA Page 614 N/12 GM 0.4 1 2.55.5 1 1 39 618 N/12 N 0.4 1 2.55.5 1 1 39 All voltages measured to ground. 8412 N/12 H 0.4 1 2.55.5 1 1 44 4412 F/12 GM 0.4 1 2.55.5 1 1 53 4418 F/12 0.4 1 2.55.5 1 1 53 4312 /12 M 0.4 1 2.55.5 1 1 56 4314 /12 0.4 1 2.55.5 1 1 56 4182 N/12 X 0.4 1 2.55.5 1 1 60 Subject to change Note: With these fan options, deviations in regard to temperature range, voltage range and power consumption are possible compared with standard fan data. 170 2016-01 Speed signal U S Low Condition: I sink Speed signal U S High Condition: I source Admissible sink current I sink max. Fan description Basic type