630 mm ø Axial fans

HQ HW HRF

All dimensions in mm

Specification Reversed operation Casing All models are reversible whenwired to a reversing switch. For reverse air flow direction allow for

Information PagesTechnical description76Selection chart77 Design of systems12-16

Manufactured in galvanised sheet steel.

Made to order designs

Electrical connection Terminals in motor cap (IP 55). HRF models are pre wired to anadditional terminal box (IP 55)fitted externally on the casing. Explosion proof models may vary.

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drop in performance.

Alternative voltages, frequencies,protection classes, high temperatures, acid protection, air flow direction B etc. are available on request.For safety and correct use notethe technical information on pages 17-19.

Impeller Highly efficient, profiled 5 or 7 blade impeller, dynamically balanced and manufactured from impact resistant polymers(explosion proof models fromsteel). Suitable for –30 to +60 °C. Installation Installation in any position. Ensure that motor drainageholes face downwards. Dimensions Guard HQ and HW models have zinc plated motor side wire guard to EN 294. Dimensions are shown above.Pole-switching and explosion proof models may vary. Motor Totally enclosed, reversiblemotor with a die-cast aluminiumcasing, protected to IP 54. Sealed for life ball bearings with tropical protection of windings and radio suppression. For maximum air flow temperaturesee table below. Sound levels Speed control For all speed controllable models the current is given in the ‘speed controlled’ column ofthe table below which must be used when selecting a controller. Both sound power and soundpressure levels are shown on each performance curve. Sound pressure levels are measured at 4 meters in freefield conditionsand are the calculated averagebetween the inlet and exhaust data. Further acoustical information see page 13. Motor protection All models (except.../8/4 and explosion proof) have thermalcontacts as standard which must be connected to a motor protection unit (see below). Motors without thermal contactsmust be protected by a conven- tional circuit breaker (MCB/RCD).

R.P.M. Air flowvolume(FID) Motorpower(nominal) Current fullspeedloadcontrolled Wiringdiagram Maximum air flow temp.standardspeed supplycontrolled Nominalweight(net) Fan type Transformer controllerorPole switch HQ Ref.No. HW Ref.No. HRF Ref.No. incl.guard incl.guard min
-1 V·m
3 /h kW AA No. +°C+°C kg Type Ref. No. 1 Phase motor, 230 Volt / 1 ph. / 50 Hz, protection to IP 55 5 speed transformer 955 10530 0.45 2.503.20 475 6040 25.0 HQW 630/6 5037 — — — — MWS5
1)3) 1949 1415 17310 1.50 6.608.4 475 4040 35.0 HQW 630/4 5056 — — HRFW 630/4 5057 MWS10
1)3) 1946 3 Phase motor, 400 Volt / 3 ph. / 50 Hz, protection to IP 55 735 8110 0.25 1.501.50 469 6040 27.0 HQD 630/8 5029 — — — — RDS 2
1)3) 1315 970 10700 0.55 1.801.80 469 6040 28.0 HQD 630/6 5027 HWD 630/6 1032 HRFD 630/6 0244 RDS 2
1)3) 1315 2 speed motor, 400 V / 3 ph. / 50 Hz, Y/ -motor, protection to IP 55 1170/1390 14310/17000 0.95/1.55 2.0/3.8 520 4040 35.0 HQD 630/4/4 5030 HWD 630/4/4 1033 HRFD 630/4/4 0245 RDS 4
1)3) 1316 2 speed motor, pole-switching, Dahlander windings, 400 Volt / 3 ph. / 50 Hz, protection to IP 55 Pole switch 480/950 5290/10480 0.10/0.50 0.60/1.30 472 60— 35.0 HQD 630/12/6 5031 — — HRFD 630/12/6 0410 PDA 12 5081 725/1450 8870/17730 0.24/1.50 1.10/3.40 471 40— 42.0 HQD 630/8/4 5032 — — HRFD 630/8/4 0411 PDA 12 5081 Explosion proof E Exe II, 400 Volt / 3 ph. / 50 Hz, protection to IP 54, temperature class T3 950 10480 0.55 1.66 470 40— 30.0 HQD 630/6 Ex 5035 — — HRFD 630/6 Ex 0494 not permitted 1450 17730 1.50 3.46 470 40— 34.5 HQD 630/4 Ex 5036 — — HRFD 630/4 Ex 0495 not permitted
1) Includes full motor protection unit
2) Includes star/delta switch
3) alternative: TSW/TSD; 5 step transformer controllers without motor protection unit

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