Q: Is the power supply included with the Q52B?
A: No, the Q52B is a backplane without a power supply unit. Order PSU separately as required
1 actual photo shown first. Reference images are model-matched and must be confirmed before purchase.
Mitsubishi
Q52B
Extension Base Unit, 2-slot Backplane, MELSEC-Q Series
Mitsubishi
From $176.72In stock
Product Description
The Q52B is a compact extension base unit designed for MELSEC-Q (QnU) series PLC systems, providing a 2-slot backplane for expanding I/O or specialty modules without an integrated power supply. Engineered for reliable operation in industrial automation environments, it supports system scalability while maintaining minimal panel footprint. With a width of 106 mm, height of 98 mm, and depth of 44.1 mm, the lightweight 0.14 kg chassis facilitates straightforward installation and cabinet layout. It carries key conformity marks including CE, UL/cUL, and UKCA, and is recognized by multiple marine shipping approvals, making it suitable for diverse applications. The unit functions as an extension rack/backplane and requires a compatible MELSEC-Q power and base configuration. Delivered as the backplane only, modules and PSU are ordered separately. Use it to extend existing Q-series architectures where additional slots are needed without altering the main base configuration.
Key Features
- •MELSEC-Q series extension backplane
- •Two module slots without PSU
- •Compact 106 x 98 x 44.1 mm size
- •Lightweight 0.14 kg chassis
- •CE, UL cUL, UKCA compliant
- •Shipping approvals ABS BV DNV GL LR NK RINA
Buy Options
Condition, indicative price, stock, and lead time. Confirm current availability via RFQ.
ConditionPriceAvailabilityLead time
New
Price: RFQ
Availability: Sourced on request
Lead time: Quoted after RFQ
Never Used
Price: $290
Availability: 1 in stock
Lead time: ~6 day lead
Used
Price: $176.72
Availability: 3 in stock
Lead time: ~2 day lead
FNFP
Price: $438
Availability: 1 in stock
Lead time: ~2 day lead
Specifications
- Model number
- Q52B
- Type
- Extension base unit backplane
- Slots
- 2
- Series
- MELSEC-Q (QnU) series
- Dimensions
- 106 x 98 x 44.1 mm
- Weight
- 0.14 kg
- Compliance
- CE, UL/cUL, UKCA
- Shipping approvals
- ABS, BV, DNV GL, LR, NK, RINA
- Function
- Extension rack/backplane without PSU
- Part #
- Q52B
- Category
- PLCs/Machine Control
- Category
- PLC Module/Rack
- Weight
- 2.00 lbs
Before we quote this part
Actual photos when available
Nameplate, condition, and visible wear can be shared before quote when stock photos are not enough.
Test notes for used units
Power-on or function test status is stated when available, with clear condition grading.
Trackable global shipping
DHL, FedEx, UPS, or forwarder options can be quoted with packing photos and tracking details.
Clear DOA boundary
For tested units, quote terms can include 7-day DOA support unless otherwise stated.
Independent sourcing disclaimer
We are not an authorized distributor, reseller, or representative of Siemens, Mitsubishi, Omron, or other manufacturers listed on this site. All product names, trademarks, brands, and logos are the property of their respective owners. Products may be used, refurbished, surplus, or sourced from the secondary market unless otherwise stated.
Need Q52B availability?
Prices and stock can change. Submit quantity, required condition, and destination for a current quote.
FAQ
Q: How many modules can the Q52B hold?
A: It provides two slots for MELSEC-Q series modules
Q: What are the physical dimensions of the Q52B?
A: 106 mm width, 98 mm height, 44.1 mm depth
Q: Which certifications does the Q52B carry?
A: CE, UL/cUL, UKCA, plus multiple marine shipping approvals
Q: Is the Q52B compatible with MELSEC-Q systems?
A: Yes, it is an extension base unit for MELSEC-Q (QnU) series