20.155MV/3 IMO PRECISION CONTROLS Connector (Header, Shrouded - Straight PTH Box) In Stock
The IMO Precision Controls 20.155MV/3 is a 3-way shrouded straight through-hole PCB header with 3.5 mm pitch, designed for secure wiring harness connections in industrial control panels and automation equipment. It provides robust mechanical retention and keyed mating for polarized plug-in terminal block connections. This compact 3-position header is used in relay modules, PLC I/O terminals, and sensor interface boards.
- Manufacturer
- IMO PRECISION CONTROLS
- Package
- Header, Shrouded - Straight PTH Box
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- 20.155MV/3 Datasheet PDF
- Category
- Connector
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- 3-position 3.5 mm pitch shrouded straight PTH header ensures polarized and secure mating with compatible plug connectors
- Shrouded housing protects contact pins from accidental damage during connector insertion and removal in field wiring operations
- Through-hole PCB mounting provides strong mechanical retention in vibration-prone industrial control and automation environments
Applications
The IMO Precision Controls 20.155MV/3 is commonly used in industrial relay modules, PLC expansion I/O boards, and sensor interface cards where 3-wire connections such as power, signal, and ground must be terminated reliably at a 3.5 mm pitch. Its shrouded PTH header design allows mating with standard 3.5 mm pitch plug-in terminal blocks, enabling tool-free field wiring changes without removing the PCB. The connector is also found in building automation systems, HVAC controllers, and industrial motor starter panels.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Alternate & Equivalent Parts
No known alternates. Submit an RFQ and our team can suggest alternatives.
Frequently Asked Questions
How many positions and what pitch does the 20.155MV/3 header support for field wiring connections?
The 20.155MV/3 is a 3-way (3-position) header with a 3.5 mm contact pitch. This pitch is a widely used standard for plug-in terminal block systems in industrial control panels, supporting wire gauges from 28 AWG to 16 AWG with rated current capacity typically around 8 A per contact, making it suitable for most relay coil, sensor signal, and low-power actuator connections.
What advantage does the shrouded housing of the 20.155MV/3 provide over an unshrouded header in a field-wiring environment?
The shrouded housing surrounds the 3 contact pins, preventing accidental short circuits from tools or conductive debris during plug insertion and removal in the field. It also provides keying to ensure correct polarity mating with a compatible 3.5 mm pitch plug connector, reducing wiring errors on 24 V DC or 110 V AC control circuits. This mechanical protection is especially important in environments where vibration or frequent maintenance could otherwise damage unprotected pins.
In which industrial applications is a 3-way 3.5 mm PTH header like the 20.155MV/3 most commonly used?
3-position 3.5 mm pitch PTH headers are standard on PLC digital I/O modules, relay output cards, and sensor transmitter boards where 3-wire connections (supply, signal, and return) must be made with removable plug-in terminal blocks. The 20.155MV/3 is used in building management systems, industrial process controllers, and machine safety relay panels operating at 24 V DC or 240 V AC control voltage, where 8 A rated contacts per pin meet most industrial switching requirements.
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About IMO PRECISION CONTROLS
IMO PRECISION CONTROLS is a leading electronic component manufacturer. FindMyChip sources IMO PRECISION CONTROLS ICs directly from authorized China distributors, offering competitive pricing and reliable stock.
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