Product Short Description
Model Series: 900B Series — General Purpose Limit Switch
Product Introduction:
The Honeywell 900B16-0202 is a heavy-duty snap-action limit switch designed for industrial machine control, safety interlocking, and position sensing. It provides reliable ON/OFF switching with a lever actuator for precise mechanical actuation in harsh environments.
Description
Technical Specifications:
- Part Number: 900B16-0202
- Contact Configuration: 1 NO + 1 NC (Single Pole Double Throw — SPDT)
- Rated Voltage: 250 VAC / 30 VDC
- Rated Current: 15 A (resistive load)
- Contact Rating (AC-15): 10 A at 250 VAC
- Mechanical Life: 10,000,000 operations
- Electrical Life: 500,000 operations at rated load
- Operating Temperature: -40°C to +85°C (-40°F to +185°F)
- Degree of Protection: IP67 (dust-tight, waterproof to 1 m submersion)
- Actuator Type: Heavy-duty roller lever, 100 mm length
- Terminal Type: Screw terminal, #10-32 stud
- Enclosure Material: Zinc die-cast alloy, powder-coated
- Lever Material: Stainless Steel 304
Functional Features:
- Snap-action mechanism for positive contact switching
- Pre-wired or field-wirable terminal connections
- Roller lever reduces side-load wear
- Sealed enclosure prevents ingress of dust and water
Performance Parameters:
- Contact Resistance: ≤ 50 mΩ initial
- Insulation Resistance: ≥ 100 MΩ at 500 VDC
- Dielectric Strength: 1,500 VAC for 1 minute
- Operating Speed: 0.1 m/s to 1.0 m/s (lever)
- Vibration Resistance: 10 g, 10–500 Hz
- Shock Resistance: 50 g, 11 ms half-sine
Structural Features:
- Compact rectangular body: 89 mm × 54 mm × 41 mm
- Roller lever: 100 mm × 12 mm diameter
- 3/4″ NPT conduit entry (bottom or side)
- Screw-terminal block with cover
Working Principle:
Mechanical force applied to the roller lever triggers the internal snap-action spring mechanism, causing rapid contact transition from one state to the other. This provides a clean, bounce-free electrical signal regardless of actuator speed.
Key Advantages:
- IP67 sealing for outdoor and washdown applications
- 10 million mechanical operations ensure long service life
- Roller lever accommodates misalignment up to ±5°
- UL, CSA, CE, and TUV certified
Applicable Industries: Material handling, packaging machinery, food processing, HVAC, conveyor systems, automotive assembly lines
Installation Requirements:
- Mount using two #10 screws or DIN rail clip
- Conduit entry must use provided gland fitting
- Wire gauge: 14 AWG to 10 AWG (solid or stranded)
- Lever orientation must match direction of actuation
Usage Notes:
- Do not exceed rated current or voltage
- Verify lever travel is not obstructed
- Periodic inspection of roller for wear recommended every 500,000 cycles
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