Description
Elevator Governor XSQ115-02 Brief Introduction
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Product Name |
Elevator Governor |
| Model Number |
XSQ115-02 |
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Quality
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Original.Brand New
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Payment
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T/T. Paypal. Western Union
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Delivery
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3-5 Working Days
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Packaging
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Packed by carton
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Elevator Governor XSQ115-02 – Precision Overspeed Protection for High-Rise Lifts | Nanjing Zhuye Elevator Parts
In a modern elevator, speed is controlled by drives and software—but the final guardian of human life is mechanical. The XSQ115-02 governor is that guardian. With a tripping speed range of 0.25-6.0 m/s and SIL-3 certified contacts, it watches the car 24/7. When speed exceeds 115 % of rated value, the lever snaps, the safety gear grips, and the car stops dead—every time. When it hesitates, the buffer is the only backup. Nanjing Zhuye Elevator Parts keeps genuine XSQ115-02 governors in vacuum-sealed packaging, ready for next-day despatch worldwide—helping you restore absolute overspeed protection without costly OEM delays.
Product snapshot
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Part number XSQ115-02, alternate codes 115-02 / XSQ-11502
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Mechanical centrifugal governor, tripping speed 0.25-6.0 m/s (field adjustable)
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SIL-3 positive-opening contacts, 10 A 250 VAC, gold-plated
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Steel rope Ø 6-8 mm, tension 120-180 N, lifetime lubricated bearings
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IP65 aluminium housing, e-coat anti-corrosion, −25 °C to +85 °C
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Mounting: car-top or machine-room, horizontal or vertical, B10 life 3 million cycles
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CE, UL, RoHS, REACH and EN 81-20/50 compliant
Where it works
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Otis Gen2®, Gen2® Switch, 4200/5200 high-speed gearless up to 6 m/s, 1 600 kg
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Machine-room-less (MRL) or machine-room (MR) installations with 6-8 mm governor rope
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Modernisation packages replacing obsolete XSQ100 or rope-release governors
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Any controller expecting SIL-3 mechanical overspeed protection
Installation method – 30-minute precision mount
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Place lift on inspection mode; raise car to top landing; switch OFF main breaker; lock & tag.
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Remove old governor; photograph rope routing and tensioning device.
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Mount XSQ115-02 on car-top frame; torque M12 bolts to 50 Nm; apply thread-locker.
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Thread governor rope through sheave; tension to 150 N ±10 N using supplied spring scale.
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Connect SIL-3 contacts in series with safety chain; verify NC opens when lever trips.
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Hand-rotate sheave slowly; listen for click; multimeter must show open circuit.
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Run full-speed down stop; governor must trip at 115 % rated speed ±1 %.
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Reset lever manually; verify contacts re-close; torque reset bolt 8 Nm.
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Seal cable gland; apply torque-stripe paint; log tripping speed and serial number.
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Return to normal mode; run 5 full-speed cycles; verify no fault codes.
Replacement cycle & preventive maintenance
EN 81-20 and manufacturer data specify:
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Visual inspection every 6 months: check sheave wear, rope tension, lever alignment.
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Speed test every 12 months: tripping speed 115 % ±1 %, reset force < 20 N.
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Replace entire governor every 10 years or 3 million cycles, whichever comes first.
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Immediate replacement if:
– tripping speed drift > ±2 %,
– lever cracks or roller wear > 1 mm,
– SIL-3 contacts > 100 mΩ,
– rope wear > 5 % diameter or broken strands visible.
Pro tip: 70 % of premature failures are traced to under-tensioned rope—re-tension to 150 N every year.
Maintenance tips from Nanjing Zhuye Elevator Parts
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Always use genuine Otis rope Ø 6-8 mm; generic ropes stretch and cause false trips.
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Never grease the sheave; dust turns into grinding paste.
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Keep a spare XSQ115-02 in every high-rise store; at 2.8 kg it costs less than one buffer hit.
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After heavy rain, run 5 cycles and check internal humidity < 60 % on data-logger.
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Order the “Governor Kit” (unit + rope + tension scale + reset tool) from Nanjing Zhuye Elevator Parts to eliminate parts hunting and ensure matched components.
Why buy from Nanjing Zhuye Elevator Parts?
We are an Otis-authorised distributor, importing XSQ115-02 directly from the OEM foundry, vacuum-testing every contact and shipping with a 24-month replacement warranty. Stock is stored in humidity-controlled bins to prevent bearing corrosion. Orders placed before 15:00 China time leave the same evening via DHL Express, arriving Europe or North America in 2–4 days. Bulk pricing starts at three pieces; we can supply pre-calibrated tripping speeds and include a loaner unit to keep your lifts protected during the swap.
Conclusion
The XSQ115-02 governor is the silent sentinel that stops every elevator exactly where it should. By installing the genuine unit, tensioning the rope correctly and replacing it before the lever cracks, you ensure every ride ends safely—every time, for the next 15 years. Stock genuine XSQ115-02 from Nanjing Zhuye Elevator Parts today—because when the governor stops, the lift stops.
