SIEMENS HED43M090 BRKR HED4 3P 480V 90A 50C Molded Case Circuit Breaker

The Siemens HED43M090 is a 3-pole molded case circuit breaker designed for electrical distribution and protection applications. Calibrated for 50°C operation, it supports a voltage rating of 480V and a current rating of 90A. This breaker is suitable for use in switchgear assemblies and panelboards, providing reliable circuit protection with a 42kA interrupt rating at 50/60 Hz frequency. Its ED frame construction ensures compatibility with Siemens switchgear systems, making it a dependable choice for electrical distributors and lighting solutions requiring robust wire and cable protection.

Specifications

• Manufacturer: Siemens
• Manufacturer Part #: HED43M090
• Frame: ED
• Number of Poles: 3
• Voltage Rating: 480 V
• Current Rating: 90 A
• Frequency Rating: 50/60 Hz
• Interrupt Rating: 42KAIC
• Operating Temperature: 50¬∞C
• Dimensions (W x H x L): 7.00 in x 6 in x 4.00 in
• Product Weight: 3.5 lbs
• Actuator: Varying
• Enclosure: Varying
• Application: Calibrated for 50¬∞C Application

Features

• Non-interchangeable trip unit integrated in ED frame for enhanced safety and compliance with UL 489 and CSA C22.2 No. 5 standards
• Thermal-magnetic trip mechanism for reliable overcurrent protection
• Designed for use with 60¬∞C or 75¬∞C wire per National Electric Code guidelines
• Suitable for mounting in individual enclosures, panelboards, and switchboards
• Manual PUSH-TO-TRIP button for mechanical trip testing
• Resettable circuit breaker handle with ON, OFF, and TRIP positions
• Torque specifications provided for line and load terminal connections to ensure secure wiring

Downloads & Links

• Spec Sheet
• Spec Sheet