Q38B (SpeedTrac) Schneider Electric Harmony Series Motor Starter Switchgear

Q38B MCCB

Q38B UL489

Q38B 400V

Q38B

Q38B MCCB is a UL489-certified circuit breaker rated for 400V applications, delivering reliable circuit protection with robust construction and advanced trip mechanisms for industrial and commercial power systems.

Specification

SEODescription

The Q38B MCCB is a UL489-certified molded case circuit breaker designed for robust industrial applications, featuring a 400V rated voltage and compatibility with 3P/4P configurations. It supports direct integration with auxiliary contacts, shunt trips, and under-voltage releases, offering versatile connectivity via Modbus or Profibus interfaces. Operating within 380-415V and a temperature range of -25°C to +70°C, it excels in power distribution systems across manufacturing, energy, and infrastructure sectors. Key advantages include high breaking capacity (up to 65kA), compact modular design, and enhanced safety with adjustable trip settings. However, its specialized configuration may require professional installation, and premium components elevate costs compared to standard breakers. The Q38B UL489 compliance ensures reliable overload and short-circuit protection in demanding environments.

SEOSpecification

Parameter	Specification
Product Model	Q38B MCCB
Standards Compliance	Q38B UL489, IEC 60947-2
Rated Operational Voltage (Ue)	Q38B 400V AC
Rated Current Range	16A - 630A
Breaking Capacity (Icu/Ics)	50kA/35kA (IEC), 65kA (UL489)
Number of Poles	3P, 4P
Mounting Type	Fixed/Drawable
Mechanical Life	20,000 cycles
Electrical Life	10,000 cycles
Operating Mechanism	Toggle/Manual
Terminal Type	Screw-type
Protection Degree	IP20 (Front)
Ambient Temperature	-25°C to +70°C
Certifications	UL489, CE, CCC

SEOQandA

question:Can we apply for low-value declaration for shipments?
answer:Yes, low-value declaration is possible for eligible shipments based on destination country regulations. Ensure compliance with applicable laws.
question:Why did the received goods have labels cut off?
answer:Labels are cut to prevent tracing to suppliers or distributors, often due to parallel import regulations or brand protection policies.
question:How long does shipping typically take?
answer:Shipping duration varies by destination and method, usually 7-30 days. Contact us for specific timelines based on your order.

SEOQandA_Product

question:Q38B fails to pair with host device.
answer:Ensure host is in pairing mode, reset Q38B, and maintain proximity (
question:Q38B shows no power indication.
answer:Check battery orientation, replace drained batteries, or test with external power supply.
question:Intermittent signal loss during operation.
answer:Remove nearby wireless interference sources and verify clear line-of-sight between devices.
question:Buttons unresponsive on Q38B.
answer:Clean contact surfaces with isopropyl alcohol and inspect for physical button damage.
question:Q38B firmware update fails.
answer:Use original USB cable, ensure stable power, and follow exact sequence in update instructions.