Siemens 3VA2463-5HL32-0AA0 630A Electronic Trip Circuit Breaker for Power Distribution

Product Overview

The Siemens 3VA2463-5HL32-0AA0 is a high-performance molded case circuit breaker from the 3VA2 series, rated at 630 amperes for three-phase power systems. It features an electronic trip unit (ETU) that provides adjustable overload (L) and short-circuit (S, I, G) protection, making it suitable for selective coordination in industrial power distribution. The breaker is designed for main and feeder protection in switchboards, panelboards, and motor control centers. It complies with IEC 60947-2 and UL 489 standards.

Key Features of 3VA2463-5HL32-0AA0

The electronic trip unit allows precise setting of long-time pickup and time delay, short-time pickup and delay, instantaneous pickup, and ground fault protection (if equipped). The breaker has a fixed thermal-magnetic backup for safety. It includes a rotary handle with ON/OFF/trip indication, and optional under-voltage or shunt trip accessories. The 3VA2 series features a compact frame size for a 630A rating, reducing panel space. The breaker has line and load terminals suitable for copper or aluminum cables up to 300 mm².

The interrupting capacity (Icu) is typically 50 kA at 415 V AC (verify from nameplate). The breaker is rated for 100% continuous operation. It has a mechanical life of 20,000 operations and electrical life of 8,000 operations. The unit includes an auxiliary contact block (as per specification). It can be mounted in any position. The operating temperature range is -25°C to +70°C. The breaker is CE, UL, and CCC certified.

Technical Specifications

• Manufacturer: Siemens AG

• Part Number: 3VA2463-5HL32-0AA0

• Series: 3VA2

• Product Type: Molded Case Circuit Breaker

• Number of Poles: 3

• Rated Current (In): 630 A

• Rated Operational Voltage (Ue): 690 V AC (max)

• Interrupting Capacity (Icu): 50 kA at 415 V AC (typical)

• Trip Unit: Electronic (ETU), adjustable L, S, I, G (depending on variant)

• Protections: Overload (L), short-time (S), instantaneous (I), ground fault (G)

• Terminals: Screw-type or lug (suitable for Cu/Al)

• Mechanical Life: 20,000 operations

• Electrical Life: 8,000 operations (at rated current)

• Operating Temperature: -25 to +70 °C

• Degree of Protection: IP20

• Dimensions (W x H x D): 210 mm x 280 mm x 110 mm (approx.)

• Certifications: CE, UL, CCC, IEC

Functional Description

The electronic trip unit continuously monitors current via built-in current transformers. It calculates thermal heating (I²t) for overload protection. For short-circuit, it provides an instantaneous trip or a time-delayed short-time trip for selective coordination with downstream breakers. Ground fault protection measures vector sum of phase currents. The trip unit can be set using rotary dials. The breaker's contacts open via a stored-energy mechanism when a trip occurs. The handle moves to a mid-position to indicate trip condition. Manual reset is required by moving to OFF then ON.

Applications

The 3VA2463-5HL32-0AA0 is used as a main circuit breaker in industrial distribution panels, feeder protection for large motors or transformers, and in selective coordination schemes in critical facilities such as data centers and hospitals.