Multispan MDT-4310 Series Thumbwheel Timer | ON/OFF Delay | Proxy/Micro Switch Input | 3-Digit Display
Multispan MDT-4310 / MDT-4310N Digital ON/OFF Delay Timer – 3-Digit Thumbwheel
Compact 48×48 digital ON/OFF delay timers with 3-digit thumbwheel setting, selectable H/M/S ranges, proximity/micro-switch input support, relay + SSR output, and power-fail memory for industrial automation panels.
The Multispan MDT-4310 Series (MDT-4310 and MDT-4310N) are compact digital ON/OFF delay timers with a 3-digit thumbwheel interface and selectable hour/minute/second ranges. Designed for panel builders and OEMs, these timers support proximity or micro switch inputs, provide relay and SSR/buzzer outputs, and include power-fail memory for dependable industrial timing control.
Key Features
Dual Operating Modes: Selectable Delayed ON / Delayed OFF operation
Time Range: Up to 999 seconds / minutes / hours (H/M/S selectable)
Simple Time Setting: 3-digit mechanical thumbwheel—no programming menus
Display: 3-digit red 7-segment LED indication
Flexible Inputs: Works with proximity sensors or micro switches (selectable)
Outputs:
Relay: 1R2C/O, 5A at 230V AC
SSR/Buzzer: 12V DC approx.
Wide Supply Range:100–270V AC, 50/60 Hz
Models & Sizes:
MDT-4310N – 48 × 48 × 70 mm (standard body)
MDT-4310 – 48 × 48 mm PC Box version
Mounting: Panel mount with clamps
Power-Fail Memory: Retains timing data during power failure
Industrial Design: Compact 48×48 footprint for space-constrained panels
Technical Specifications (Table)
| Parameter | Specification |
|---|---|
| Series Models | MDT-4310, MDT-4310N |
| Function | Digital ON/OFF delay timer |
| Time Range | 0–999 (hour/minute/second selectable) |
| Time Setting | 3-digit mechanical thumbwheel |
| Display | 3-digit, 7-segment red LED |
| Operating Modes | Delayed ON / Delayed OFF (selectable) |
| Input Type | Proximity sensor / Micro switch (selectable) |
| Relay Output | 1R2C/O, 5A at 230V AC (resistive) |
| SSR/Buzzer Output | 12V DC approx. |
| Power Supply | 100–270V AC, 50/60 Hz |
| Memory | Power fail memory |
| Mounting | Panel mount |
| Body Variants | MDT-4310N: 48×48×70 mm, MDT-4310: 48×48 mm PC Box |
| HSN Code | 85369090 |
Applications
ON/OFF delay for motors, pumps, and valves
Packaging machine dwell/control timing
Process interlocks and safety delay triggers
Sequential start of multiple equipment
Conveyor/batch operations in compact panels
OEM machine timing logic
What’s in the Box?
1 × Multispan MDT-4310 or MDT-4310N Digital Timer (as ordered)
Panel mounting clamps
Basic wiring and function leaflet
Warranty/support information
FAQ (4–6 Q&A)
Q1. How is the time set on MDT-4310 Series timers?
Time is set using a 3-digit thumbwheel, allowing quick and precise setting without navigating menus.
Q2. What is the difference between MDT-4310 and MDT-4310N?
Functionally they are the same. MDT-4310 is in a PC box enclosure, while MDT-4310N is the standard body version.
Q3. Which input types are supported?
Both proximity sensors and micro switches are supported (selectable input).
Q4. Does it support both ON and OFF delay?
Yes, the timer can be configured for delayed ON or delayed OFF operation as per application.
Q5. Is there power-fail memory?
Yes, the MDT-4310 Series includes power fail memory to retain timing data during power interruptions.
Q6. What output options are provided?
You get a relay output (1R2C/O, 5A at 230V AC) and a 12V DC SSR/buzzer output.