Overview
The Siemens ED63A003 motor circuit interrupter is a compact, bolt-on 3-pole device engineered for dependable motor protection in industrial and commercial applications. Rated at 3 amperes and 600 volts AC, this ED-frame unit combines electronic trip logic with magnetic instantaneous protection to safeguard three-phase motors against overcurrent faults. The ED6-ETI design makes it suitable for panelboard retrofit installations where space and performance are critical.
Key Features
- Electronic trip module with adjustable magnetic range (10–35 amperes)
- 3-pole, 600 VAC / 250 VDC rated for 50/60 Hz operation
- 18,000 AIC interrupting rating at 600 volts AC; 25,000 AIC @ 480V; 65,000 AIC @ 240V
- Bolt-on mounting; compatible with ED-frame panelboards
- UL 489 and CSA C22.2 listed; meets motor circuit protector standards
- Motor FLA range 0.76–3.18 amperes; supports motors up to 3 HP at 600V three-phase
Technical Specifications
The ED63A003 integrates electronic overload sensing with magnetic instantaneous protection. Its adjustable trip setting (10–35 A) accommodates various motor sizes and startup characteristics. The device operates on both AC and DC supplies and includes a visual trip indicator for fault diagnostics.
Typical Applications
- Individual motor protection in panelboards and motor control centers
- Retrofit replacement in existing ED-frame enclosures
- Three-phase motor circuits up to 3 horsepower at 600 VAC
- Industrial machinery, pump motors, and compressor protection
- OEM equipment and packaged motor starters
Compatibility & Replacements
The ED63A003 is a genuine Siemens product (part of the legacy ITE / Siemens ED-frame portfolio) and bolts directly into ED-frame panelboards. It replaces earlier ITE ED63A003 units and is compatible with Siemens SENTRON Series motor control architectures. No terminal or lug kit is included; specify lug kit LN1E100 separately if wire termination is required (#10 AWG to 1/0 AWG). This device does not interchange with smaller 2-pole or larger frame sizes; confirm frame type before ordering.
