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Mitsubishi Electric Q55B
Mitsubishi MELSEC-Q Series Extension base
- MPN
- Q55B
Price and lead time confirmed within 1 business day
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- 12-month warranty (new) · 3-month (used/refurbished)
- 30-day returns, no restocking fee on unused parts
- Ships via
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What is the Mitsubishi Electric Q55B?
The Mitsubishi Electric Q55B is a extension base in the MELSEC-Q Series. 5 slots, power supply module not required, for Q Series modules. Mitsubishi Electric has announced its discontinuation (2029/09 To be end of order) — plan spares now; PartnerPLC also sources it on the surplus market after the end of order. Specifications and manuals below are Mitsubishi Electric's own data.
Specifications
Product
| Series | MELSEC-Q Series |
| Category | Extension base |
| Type | Power supply not required |
| Sales status | 2029/09 To be end of order (Mitsubishi Electric) |
| Outline | 5 slots, power supply module not required, for Q Series modules |
Specifications
| Number of mountable I/O modules | 5 |
| Possibility of extension | Extendable |
| Applicable module | MELSEC-Q series modules |
| Applicable power supply module | None |
| Internal current consumption (5 V DC) | 0.10 A |
| Mounting hole size | M4 screw hole or ø4.5 hole (for M4 screw) |
| External dimensions: Height | 98 mm |
| External dimensions: Width | 189 mm |
| External dimensions: Depth | 44.1 mm |
| Weight | 0.23 kg |
| DIN rail mounting adapter type | Q6DIN3 (sold separately) |
Specifications
| General specifications | Refer to the general specifications of the CPU module. |
Downloads & documentation
Official documents from Mitsubishi Electric (Factory Automation), downloaded directly from the manufacturer.
Data sheets & manuals
Q55B: frequently asked questions
When can Q55B be shipped?
Q55B is sourced on request — request a quote and we'll confirm the exact availability and shipping timeline for this specific unit.
Can I pick up Q55B in person?
Local pickup from our Groningen, Netherlands warehouse may be possible — contact us before ordering to check availability and arrange a collection time.
Is express delivery available?
Yes — mention it when you request a quote for Q55B and we'll include express shipping options in our reply.
My factory is down and I need this urgently — can you help?
For a critical breakdown, contact us directly at +31 (0)50-7110348 or sales@partnerplc.com — we can look into same-day courier or dedicated taxi/hotshot delivery for Q55B, subject to availability and destination.
More Mitsubishi Electric (Factory Automation) parts
Mitsubishi Electric Q55BPrice and lead time confirmed within 1 business day
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