05020GA （旧BM5020） Ф50X20L DC Blower Fan

Product catalog summary

Outline and Dimensions

The document provides detailed mechanical dimensions of the 05020GA DC blower fan, including diameter (φ50 mm), length (20 mm), and mounting hole specifications (2 holes, φ4.3±0.3 mm). Tolerances for various dimensions are specified to ensure precise fitting.

Characteristic Curves

Performance curves illustrate the relationship between static pressure (Ps in Pa) and air flow (Q in m³/min) for different fan classes (K, L, M). These curves help in selecting the appropriate fan model based on required airflow and pressure.

Expected Life (L10 Life)

The expected operational life is defined at a 10% failure rate (L10 life), with a reference of 50,000 hours at 25°C, indicating high reliability under specified conditions.

Material Composition

Casing Lower: Plastic (Black), UL94V-0 flame retardant
Casing Upper: Steel
Impeller: Plastic (Black), UL94V-0
Bearing: Ball bearing
Lead Wire: UL1061 AWG26, Red (+), Black (-)

General Specifications

Motor Protection: Auto restart and polarity protection to prevent damage from reverse connection
Insulation Resistance: ≥10 MΩ measured with DC 500V megger
Dielectric Withstand Voltage: AC 700V for 1 second
Allowable Ambient Temperature Range:
- K and L Class: -10°C to +70°C (operating)
- M Class: -10°C to +60°C (operating), -40°C to +70°C (storage)
Environment: Non-condensing conditions required for proper operation

Specifications Table Summary

Model	Rating Voltage (V)	Operating Voltage Range (V)	Rated Current (A)	Input Power (W)	Speed (min⁻¹)	Max Air Flow (m³/min)	Max Static Pressure (Pa)	Noise (dB)	Mass (g)
05020GA-12K-AA00	12	4.5 – 13.8	0.07	0.84	3600	0.10	75.0	20.0	300
05020GA-12L-AA00	12	4.5 – 13.8	0.12	1.44	4600	0.13	124.0	27.0	300
05020GA-12M-AA00	12	4.5 – 13.8	0.18	2.16	5600	0.16	184.0	32.0	300

Note: All values are average measurements in free air. Rotation direction is clockwise when viewed from the label side.

Catalog excerpts

05020GA （旧BM5020） Ф50X20L DC Blower Fan-1

05020GA (IB BM5020) ®50X20L DC Blower Fan ■ General Specifications : imm.mx&s Motor Protection Auto Restart / Polarity Protection WBMfa : DC500V T< #(CT 10MQ Insulation Resistance 10MQ or over with a DC500V Megger : AC700V 1s Dielectric Withstand Voltage : K • L Class : -10C ~ +70°C (Operating) Allowable Ambient M Class :-10°C ~ +60°C (Operating) Temperature Range -40°C ~ +70°C (Storage) non-condensing environment Expected Life * Failure Rate: 10% (L10 Life) 25°C 50,000 B#Pb1 (Hours) ■ Characteristic Curves S M Q (m3/min) Air Flow ■ ttt§ Specifications ■ W# Material ^->>7p7-^-y>^77A-f >^-y-W® <J - K& Casing Lower Casing Upper Impeller Bearing Lead Wire Plastic (Black) UL94V-0 Steel Plastic (Black) UL94V-0 Ball Bearing UL1061 AWG26 + :Red, -: Black Rotation: Clockwise as seen from the label side *1: Average Values in Free Air

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