Description

1. Part-number breakdown XHB-NR36C = 36 mm round button, nickel-plated brass bezel, IP41 front, IK08 impact, –25 °C…+70 °C
   A02 = red LED, 24 VDC, N/O contact, 1 mA…2 A, 30 VDC max
   B02 = green LED, 24 VDC, same electrical spec
   C02 = blue LED, 24 VDC, same electrical spec
   Illumination: 1.2 mA per LED, 40 cd/m², 120° viewing angle
   Mechanical life: 5 million actuations, 45 N operating force ±5 N
2. Safety first—lock-out & verify Button contacts sit on 24 VDC logic but share the cabinet with 110 VDC brake circuits. Lock the controller breaker, hang a lock-out tag and wait 60 s for the rail to fall below 5 V. Keep the new Nanjing Zhuye button in its anti-static bag until mounting—ESD can damage the on-board constant-current LED IC.
3. Mechanical mounting—keep the face flat Bezel outside diameter 36 mm; panel hole 30 +0.2 mm. Insert from front, slide anti-rotation washer, thread M30 plastic nut by hand, final torque 1.5 N·m. Over-tightening bows the faceplate and causes binding; <1 N·m allows the button to spin under finger torque. NYE supplies a free nylon wrench (NY-WRENCH-36) to avoid scratching the nickel bezel.
4. Wiring map (print and stick inside COP) +24 V (brown) → LED anode (pin 1)
   0 V (blue) → LED cathode (pin 2)
   N/O contact (black) → logic input (pin 3)
   Common (white) → 0 V logic (pin 4)
   Shield drain → PE at controller end only
   Wire size: 0.5 mm² flexible, 105 °C silicone; torque 0.3 N·m on plug-in connector
5. Illumination & brightness test Apply 24 VDC; LED must light immediately.
   Measure current: 1.2 mA ±0.1 mA.
   Luminance: 40 cd/m² @ 20 mA total (16 buttons).
   If brightness <30 cd/m², LED is aged—replace button even if contact still works.
6. Contact functional test With DMM on logic input, press button; contact resistance must be <50 mΩ.
   Release button; leakage <1 µA.
   If contact bounces >1 ms or resistance >100 mΩ, silver layer is worn—replace immediately.
7. Operating-force curve Fuji factory spec: 45 N ±5 N at 1 mm travel.
   Feel gauge: 2 mm pre-travel, 0.3 mm over-travel.
   If force <35 N, diaphragm is fatigued; >55 N indicates lubrication dry-out—both schedule replacement.
8. Temperature & lifetime model LED: 50 kh @ 25 °C, doubles every 10 °C drop.
   Contact silver: 5 million cycles mechanical, 100 k electrical @ 2 A.
   Translate to building traffic: Light traffic (residence, 60 presses/day) – LED ≈ 30 years, contact ≈ 30 years, full button ≈ 20 years; inspect every 5 years. Medium traffic (office, 300 presses/day) – LED ≈ 10 years, contact ≈ 5 years, full button ≈ 6 years; inspect every 2 years. Heavy traffic (mall/metro, 800 presses/day) – LED ≈ 5 years, contact ≈ 2 years, full button ≈ 2 years; inspect every 6 months.
9. Preventive inspection checklist Monthly: visual LED colour, listen for crisp click. Quarterly: measure contact resistance; >100 mΩ schedules replacement. Annually: lux-meter check; <30 cd/m² schedules replacement. Bi-annually: torque check M30 nut; vibration loosens it, causing flush misalignment.
10. Rapid swap (downtime < 1 min) a) Place car at landing, lock-out, tag out. b) Photograph wire colours with phone. c) Remove M30 nut, slide old button out. d) Insert new Nanjing Zhuye XHB-NR36C-A02/B02/C02, torque 1.5 N·m. e) Restore plug, power up, run click and LED test. f) Log serial number and date; return old unit for recycling.
11. Recycling & sustainability Nanjing Zhuye offers prepaid UPS labels inside every carton.
    Returned buttons are stripped: nickel bezel remelted, ABS housing re-granulated, silver contacts refined.
    One recycled button saves 0.2 kg CO₂—enough to power the same COP for a week.