- DIN rail
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35 mm DIN rail with mounted circuit breaker (rear view)
Electrical equipment is mounted onto 35 mm DIN rail
Cross section view of a G-type DIN rail, with electrical equipment mounted onA DIN rail is a metal rail of a standard type widely used for mounting circuit breakers and industrial control equipment inside equipment racks. The term applies to multiple similar standards.
The three major types:
- Top hat section, type O, or type Ω, with hat-shaped cross section.
- C section
- G section
Contents
Top hat section / Type O / Type Omega (Ω)
This type of rail was originally standardized by the Deutsches Institut für Normung (DIN), the German national standards organization. The most popular is 35 mm wide.
C section
The rails are symmetrical within the tolerances given. There are four popular C section rail, C20, C30, C40 and C50. The number suffix corresponds to the overall vertical length of the rail.
G section
G-type rail (according to EN 50035, BS 5825, DIN 46277-1).
Others
In addition to the popular 35 mm x 7.5 mm top-hat rail (EN 50022, BS 5584, DIN 46277-3), several less widely used types of mounting rails have been standardized:
- Miniature top-hat rail, 15 mm x 5.5 mm (EN 50045, BS 6273, DIN 46277-2);
- 75 mm wide top-hat rail (EN 50023, BS 5585);
See also
- European Standard EN 50022: Specification for low voltage switchgear and control-gear for industrial use. Mounting rails. Top hat rails 35 mm wide for snap-on mounting of equipment. (formerly: German Standard DIN 46277, British Standard BS 5584)
- IEC International Standard 60715: Dimensions of low-voltage switchgear and control-gear. Standardized mounting on rails for mechanical support of electrical devices in switchgear and control-gear installations.
- Australian Standard AS 2756.1997: Low-voltage switchgear and controlgear - Mounting rails for mechanical support of electrical equipment.
External links
Categories:- EN standards
- DIN
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