OperaTM-MH, a medium duty jackshaft operator for standard, high &vertical lift sectional doors or small rolling doors and grilles. It canbe wall, hood or shelf mounted on either side of the door. It incorporatesa self-engaging chain hoist for manual operation.
• Hoist-a-matic® self-engaging chain hoist
• Hinged cover with stable opened position
• Accu-cam® one hand limit setting
Specification Sheet
Opera - MHTM
TM
Opera-MH Jackshaft Operator14 cycles/hour 50 cycles a day
TM
Manaras-Opera reserves the right to make specification ordesign changes without prior notice.
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• Main OptionsControl Accessories: terminal strip allowsconnection of 3-button stations (one suppliedwith the operator), sensing edges, photo cells,one push-button radio control (external strip),ceiling pull and key switches, loop detectors,external interlocks. 2A fuse protected 24VAC
output is available for accessory power supply.
Mechanical Accessories: wall mountingbracket, chain spreader, etc..., consult insidesales.
• Motor ControlControl Units: 24VAC control circuit, 40VAclass II transformer, fuse protected on output.C2 wiring is standard. B2 can be set very easilyby moving one wire. Available options: delay onreverse, timer to close, double limits.
or
ECB Units: please consult inside sales.
• Motor Selection
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Approx. shipping weight: 68 lbs – 31 kg
HorsePower
1/2
115 V1 Ph
5.0
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Rolling Doors Sectional Doors
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2 &
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20 g
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ns.
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24 g
a. S
teel
Alu
. Doo
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Ste
el
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20 g
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teel
16 g
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HorsePower W
ood
Stee
l 20
ga.
22 &
24 g
a. in
s.
Fibe
r Gla
ss
1/2 - 160 200 275 320 120 160 250 275 290
®
TMReg. T.M. of 9141-0720 Québec Inc.
Gen
eral
Gui
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e
Gen
eral
Gui
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• Standard FeaturesMotor: 1/2 Hp, 115 Volts, 1 Phase, instantreverse, intermittent duty motor, protectedagainst overload by a built-in thermal protectionwith automatic reset. Also available with 50Hzmotor, consult inside sales.
Reduction: first step in reduction 5L/B V-beltdrive, additional steps by chain and sprockets.Input shaft is 5/8" in diameter and supported byball bearings. Output shaft is 1" in diameter with1/4" keyway and supported by ball bearings.Output shaft speed: 36 rpm.
Friction Clutch: positioned on input shaft, easilyadjustable from outside.
Drive: #41 roller chain with a 41B12 sprocket onoperator drive shaft. Door sprocket selected fora door travel of 6"/s to 12"/s.
Brake: mechanical brake.
Manual Operation: Hoist-a-matic® self-engaginghoist (not requiring a floor level engagement deviceto operate) for manual chain operation. An electrical interlock automatically disconnectspower to the motor operator when chain hoist isengaged. Hand chain on right is standard.
Electrical Enclosure: all electrical componentsare in a NEMA 1 enclosure. Electrical enclosurecover is hinged with stable opened position.
Limit System: rotary-type oil-impregnated steelcams, commercial grade switches. Limit shaft issupported in frame by self-lubricating bronzebushing for increased precision. Remains in timewhen there is a manual operation or after themotor has been removed.
Accu-cam®: precise and quick one-handedadjustment of the limits.
Corrosion Protection: frame and controlenclosure protected by baked on, long lastingenamel finish. All shafts protected by yellowchromate coating.
Mounting: wall, hood, or shelf mounted on theright or on the left of the door.
2 Year Warranty
• Operator Range
In compliance with UULL 332255 and CCSSAA 2222..22//224477
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• DimensionsClearance: side room required 15” (380 mm)Maximum door height: 14’ (4260 mm)
Man
aras
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MH
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