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Alpha Three mercury / metal-halide / Son lantern


QA3 DC/B1250.4 and QA3 DS/1400

Lamps
One 250W or 400W MBF/U or
One 400W MBI/F or
One 250W or 400W SON.

Distribution
(a) Cut-off
(b) Semi-cut-off

Specification
To B.S.1788. Kite marked, DOE and COID approved.
The canopy is pressed aluminium and painted white internally. End support/gear slipper with porcelean lampholder is in LM6-M die-cast aluminium alloy. Bowls are moulded in clear UV stabilized acrylic plastic.
Control gear for "less gear" lanterns is mounted remote.

Mounting
Side entry for:
(a) 42/48 mm horizontal spigot (less gear)
(b) 42/48mm or 60mm horizontal spigot (with gear)

Recommended mounting height:
Nominal 8-12m.

Average spacing/height ratio:
4-5:1 (SCO)
3:1 (CO)

Catalogue no.

Complete lanterns less gear
Lanterns comprise canopy assembly and bowl assembly.
QA3.S.1400: Semi-cut-off lantern for 400W MBF/U, 400W SON, 400W MBI/F.
QA3.S.1250: Semi-cut-off lantern for 250W MBF/U, 250W SON.
QA3.C.1400: Cut-off lantern for 400W MBF/U, 400W SON, 400W MBF/F.
QA3.C.1250: Cut-off lantern for 250W MBF/U, 250W SON.





Complete lanterns with gear
Lanterns comprise canopy assembly, lampholder assembly and bowl assembly.
QA3.DS/L/B.1400.4: Semi-cut-off lantern for 400W MBF/U.
QA3.DS/L/B.1250.4: Semi-cut-off lantern for 250W MBF/U.
QA3.DC/L/B.1400.4: Cut-off lantern for 400W MBF/U.
QA3.DC/L/B.1250.4: Cut-off lantern for 250W MBF/U.
QA3.DS/L/NB.1400.T: Semi-cut-off lantern for 400W SON.
QA3.DS/L/NB.1250.T: Semi-cut-off lantern for 250W SON.
QA3.DC/L/NB.1400.T: Cut-off lantern for 400W SON.
QA3.DC/L/NB.1250.T: Cut-off lantern for 250W SON.
QA3.DS/L/IB.1400.T: Semi-cut-off lantern for 400W MBI/F.
QA3.DC/L/IB.1400.T: Cut-off lantern for 400W MBI/F.

For 'with gear' lanterns requiring 60mm spigot, add '60' to catalogue number (e.g. QA3.DS/L/60B 1400.4).

Packages
QA3.B1400.4: Canopy complete with gear for 400W MBF/U 240V.
QA3.B1250.4: Canopy complete with gear for 250W MBF/U 240V.
QA3.NB1400.4: Canopy complete with gear for 400W SON 240V.
QA3.NB1250.4: Canopy complete with gear for 250W SON 240V.
QA3.IB1400.T: Canopy complete with gear for 400W MBI/F 240V.
QA3.1400: Canopy less gear.
QA3.DS: Bowl assembly SCO.
QA3.DC: Bowl assembly CO.
QA3.SL.1400: Lampholder assembly for 400W SCO with gear.
QA3.SL.1250: Lampholder assembly for 250W SCO with gear.
QA3.CL.1400: Lampholder assembly for 400W CO with gear.
QA3.CL.1250: Lampholder assembly for 250W CO with gear.

Control gear

Gear sets required for 'less gear' lanterns and supplied for 'with gear' lanterns.

LampControl Gear
250W MBF/UAME 53198.4*
AME C2214
400W MBF/UAME 53193.4*
AME C2218
400W MBI/FAME 53193.T*
AME 53282
AME C2218
250W SONAME 53251.T
AME 53282
AME C2236
400W SONAME 53230.T
AME 53282
2xAME C2218
*To BS.4782, Kite marked


QA3 DS/B1250.4