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Motor Protective Circuit Breaker 0.63A | Three-Pole | Overload Protection & High Short-Circuit Rating | Eaton

BRAND: Eaton
SKU: Y7-72733
$150.70 List price: $187.80
+ −
30 Days Return Delivery Options
Protect your motors with this 0.63A motor protective circuit breaker, featuring three-pole design and high short-circuit current rating up to 65 kA. Ideal for industrial applications, it ensures reliable motor protection and compliance with energy-efficient standards.

Product Name/Title: Motor Protective Circuit Breaker 0.63A | Three-Pole | Overload Protection & High Short-Circuit Rating | Eaton

Brand: Eaton

SKU: Y7-72733

Alternatively Known As: Motor Protective Circuit Breaker PKZM0, Motor Circuit Breaker PKZM0, Eaton Motor Protector, PKZM0 Motor Breaker

Technical Specifications
  • Rated operational current (Ie): 0.63 A
  • Rated operational power at AC-3, 220/230 V, 50 Hz: 0.09 kW
  • Rated operational power at AC-3, 380/400 V, 50 Hz: 0.12 kW
  • Number of poles: Three-pole
  • Actuator type: Turn button
  • Connection type: Screw terminals
  • Overload release current setting: 0.4 - 0.63 A
  • Tripping characteristic: Overload trigger class 10 A
  • Rated impulse withstand voltage (Uimp): 6000 V AC
  • Short-circuit current rating: Up to 65 kA depending on configuration
  • Operating frequency: 40 operations per hour
  • Operating temperature range: -25 °C to 55 °C
  • Mounting: Snap-on IEC/EN 60715 top-hat rail
  • Terminal capacity (flexible with ferrule): 1 x (1 - 6) mm² or 2 x (1 - 6) mm²
  • Terminal capacity (solid): 1 x (1 - 6) mm² or 2 x (1 - 6) mm²
  • Tightening torque: 1.7 Nm for main cable, 1 Nm for control circuit cables
  • Mechanical and electrical lifespan: 100,000 operations
  • Dimensions (H x L x W): 93mm x 76mm x 45mm
  • Weight: 0.246 kg
Key Features
  • Phase-failure sensitivity according to IEC/EN 60947-4-1 and VDE 0660 Part 102
  • Three-pole motor protective circuit breaker
  • Screw terminal connections with 1.7 Nm tightening torque
  • Can be snapped onto IEC/EN 60715 top-hat rail (7.5 or 15 mm height)
  • Rated operational current of 0.63 A with overload release current setting from 0.4 to 0.63 A
  • Rated operational power up to 0.12 kW at 380/400 V, 50 Hz
  • High short-circuit current rating up to 65 kA depending on configuration
  • Protection against direct contact when actuated from front (finger and back-of-hand proof)
  • Operating temperature range from -25 °C to 55 °C
  • Mechanical and electrical lifespan of 100,000 operations
  • Shock resistance of 25 g according to IEC/EN 60068-2-27
Professional Installation Requirements
  • Installation should be performed by a qualified electrician to ensure compliance with electrical safety standards and proper integration into motor control circuits.
Applications
  • Motor protection in industrial and commercial electrical installations
  • Branch circuit protection for motors with efficiency class IE3
  • Group installations requiring motor protective circuit breakers
Standards & Compliance
  • AS/NZS 60950 – Safety of IT and Communication Equipment
Environmental Benefits
  • Enhances motor efficiency and protection, reducing energy waste and equipment damage
  • Supports compliance with energy-efficient motor standards (IE3)
  • Durable design reduces need for frequent replacements, minimizing waste
Warranty Information

Warranty terms as provided by Eaton, typically covering manufacturing defects. Please refer to Eaton's official warranty policy.

Available Now

The Eaton Moeller PKZM0 Motor-Protective Circuit-Breaker 0.63A is available for immediate purchase, ideal for industrial motor protection applications.

Product specifications (skuPage.072733.pdf, 77 Kb) [Download]

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