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Applied Materials 0040-96157
Applied Materials 0040-96157
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Reliance 45C959
Reliance 45C959

Reliance 45C922

Product Name: Reliance Electric 45C922 — AC Contactor (Definite Purpose / Motor Control)

Product Overview: Definite purpose AC contactor manufactured by Reliance Electric (now part of Rockwell Automation / ABB). Used for motor starting, lighting, and general-purpose switching.

Category:
Description

Technical Specifications:

Parameter Value
Type Definite Purpose Contactor
Pole Configuration 3-pole (3P)
Coil Voltage 120V AC (or 240V AC — verify suffix)
Rated Current (AC-3) 25A at 480V AC
Rated Current (AC-1) 40A at 480V AC
HP Rating (AC-3, 480V) 10 HP
Auxiliary Contacts 1 NO + 1 NC (standard)
Coil Type AC shaded-pole or AC/DC universal
Enclosure Open (NEMA 1)
Mounting DIN rail or panel screw
Terminal Type Screw terminals (lug or fork)
Life (Mechanical) 10,000,000 operations
Life (Electrical) 500,000 operations (AC-3)
Standards UL 508, CSA C22.2 No. 14, IEC 60947-4-1

Functional Features:

  • Silver alloy contacts — low resistance, high wear resistance
  • Snubber circuit (optional) — reduces coil de-energization transients
  • Manual override — push-to-test / push-to-open button
  • LED indicator (on some variants) — coil energized status
  • Quick-connect terminals — tool-less wiring on lug versions

Performance Parameters:

Metric Value
Operating Frequency 1200 operations/hour max
Coil Power ~5 VA (120V AC) / ~8 VA (240V AC)
Contact Resistance <5 mΩ (new)
Dielectric Strength 2000V AC (coil to contact, 1 min)
Ambient Temp -40°C to +60°C

Applicable Industries: HVAC, compressors, pumps, conveyors, machine tools, lighting panels, motor control centers.

Installation Requirements:

  • Mount vertically (coil up) for gravity-assisted contact closure
  • Wire coil circuit with fuse (125% of coil current)
  • Use wire size per NEC Table 310.16 (25A → 10 AWG Cu)
  • Torque terminals to 8–12 in-lbs

Usage Notes:

  • “45C” series = definite purpose (not general-purpose) — do not use for non-motor loads without verification
  • AC coil contactor — do not apply DC to AC coil (will burn out)
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