The full motor range of TCD YBX3 series complies to IEC60079-0:2011 Explosive atmospheres - Part 0 General requirements & IEC60079-1:2014-06 Explosive atmospheres – Part 1: Equipment protected by flameproof enclosure “d”.

The TCD YBX3 range is specially designed and certified for use in a Zone 1, Groups IIB or IIC, T4 class temperature, Ex d area.

This range is certified to IEC/Ex and Atex.

Efficiency

The TCD YBX3 range in 2, 4 & 6 pole complies with MEPS2 requirements of AS/NZS 1359.5.2004 Table A3 (IE3 High Efficiency). Refer GEMS determination 2018. Motors are tested in accordance with Test Method A of AS/NZS 1359.102.3 as per IEC60034-2-1.

Specification and Operating Parameters

The main dimensions and rated outputs generally conform to IEC60034 and IEC60072. Motor performance data is designed and based upon:

• S1 continuous running duty

• Ambient temperature standard between -20˚ C ~ +40˚ C (Ambient up to 60˚C available by output duration).

• Altitudes up to 1000 meters above sea level.

• Standard voltage: 240V/415V, 415V/720V

• Optional voltages: 220V/380V, 230V/400V, 380V/600V, 400V/690V, 660V/1140V 50Hz/60Hz.

• IP66 protection enclosure

• Class F insulation with class B temperature rise

Motor Construction

• Stator and terminal box are manufactured from close-grained pearlitic grey cast iron having 250MPa tensile strength.

• Stator windings are wound with polyester enamel wire of high strength and treated with VPI (vacuum-pressure impregnation) varnish.

• Rotors are of cast aluminum and dynamically balanced.

• Stator and rotor cores are laminated with high-class electrical steel sheet of high permeability.

• Frame size 132 and below, shielded ball bearings are used and fitted with a wave washer at the drive-end.

• Frame size 160 and above are fitted with re-greaseable bearings, inner and outer caps are used to prevent any axial movement.

• Frame size 250 and above have a provision for mounting bearing temperature monitoring devices.

• Motors are fitted with anti-static plastic fan.

• Motors for vertical shaft down application are generally fitted with a rain canopy.

Terminal Box

TCD YBX3 series are designed with a square box arrangement and have excellent flameproof protection. Motors as standard have 2 conduit entries, 1 x main entry & 1 x thermistor entry, both entries are fitted as standard with IEC/Ex approved cable glands.