2MLR-AC22 Honeywell MasterLogic-200 Power Supply 220VAC 5VDC

2MLR-AC22 Honeywell MasterLogic-200 Power Supply Module

The 2MLR-AC22 feeds Honeywell MasterLogic-200 racks from 220 VAC mains. It converts 176–264 VAC into a regulated 5 VDC / 5.5 A rail. Output power reaches 27.5 W at 55°C. The module rides through 20 ms interruptions without a reset. A built-in 250V/3.15A time-lag fuse protects the AC side. The RUN contact reports supply status to the CPU. Engineers size this unit for MasterLogic-200 I/O frames that draw steady 5 V logic current. Its 65%+ efficiency and 110 VA input cap keep panel heat low. Field wiring lands on 0.75–2 mm² clamped terminals.

Technical Data

• Manufacturer: Honeywell
• Product number: 2MLR-AC22 (catalog family 2MLR-AC12)
• Rated input: 220 VAC, range 176–264 VAC
• Frequency: 50/60 Hz, 47–63 Hz
• Max input power: 110 VA / 42 W
• Inrush: 20 A peak, within 8 ms
• Efficiency: 65% or higher
• Fuse: built-in, non-user-replaceable, 250V/3.15A time-lag, UL approved
• Ride-through: 20 ms instantaneous interruption allowed
• Output: 5 VDC ±2%, 5.5 A, 27.5 W at 55°C
• Overcurrent trip: 6.0–13.0 A
• RUN contact: 24 VDC / 0.5 A, min load 5 VDC / 1 mA
• Response: Off→On 10 ms or less, On→Off 12 ms or less
• Contact life: 20 million mechanical, 100 thousand electrical
• Status LED: on when output is normal
• Cable: 0.75–2 mm²; clamps RAV1.25-3.5, RAV2-3.5
• Dimensions: 55 x 95 x 90 mm
• Weight: 382 g

Oiltech Controls Review

• The RUN contact gives a hard status bit. No soft diagnostics needed.
• The 20 ms ride-through covers most contactor chatter and breaker recloser gaps.
• The 5.5 A rail matches MasterLogic-200 frame loads with margin.
• The 20 A inrush stays friendly to small MCBs on 220 VAC feeds.
• Fuse is sealed. Treat a blown fuse as an end-of-life event and swap the module.
• Terminal clamps accept RAV1.25-3.5 and RAV2-3.5 lugs. Crimp, do not solder.

Oiltech Controls’s Insight

• Check the 5 VDC rail under full I/O load before you close the panel.
• Watch the status LED during a live mains dip. A flicker means weak input caps.
• Measure the RUN contact with a meter. Stuck contacts mask supply faults.
• The 110 VA input budget matters on shared 220 VAC circuits. Add up all modules first.
• Keep 55°C derating in mind. Output drops to 27.5 W at that ambient.

Compatible Equipment

• Honeywell MasterLogic-200 main and expansion racks
• MasterLogic-200 I/O frames that draw 5 V logic current
• Legacy Honeywell PLC panels on 220 VAC single-phase feeds
• Obsolete control cabinets needing a drop-in 2MLR-AC22 replacement

Warranty, Lead Time, Shipping

• 12-month warranty from Oiltech Controls
• Dispatch in 24–28 hours after order confirmation
• Shipping by FedEx, UPS, or DHL
• Tracking number sent on dispatch

FAQ

Q: Can I swap 2MLR-AC12 with 2MLR-AC22?

A: Both share the 2MLR-AC family and 5 VDC output. Verify your rack’s input voltage and load current first. Confirm the part number on the label before you pull the old module.

Q: Why does the module trip a 10 A breaker at power-up?

A: Inrush hits 20 A peak for 8 ms. Use a time-delay MCB rated for motor or capacitive loads. A fast B-curve breaker may nuisance trip.

Q: The LED is on but the CPU reports no RUN signal. Why?

A: Check the RUN contact wiring and the 24 VDC loop. The contact closes only when output is normal. Also verify the 0.5 A load limit and minimum 1 mA load.

Q: What output can I expect at 60°C ambient?

A: Rated power is 27.5 W at 55°C. Derate above 55°C. Plan your I/O current budget with margin if the cabinet runs hot.

Q: How do I choose between surplus and refurbished stock?

A: Surplus units come from pulled panels with low run hours. Refurbished units get bench test and rail check. Tell us your duty cycle. Our engineers match the option to your process risk.

Contact Information

Inquiries: info@oiltechcontrols.com

Phone / WhatsApp: +86 158 8020 0923

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