Phoenix Contact 3210923 PTTB 2.5-DIO/O-U Series Component Terminal Block Grey, 0.14mm², 4 mm², 2-Level, Push-in

RS Stock No.:: 687-9758
Distrelec Article No.:: 304-01-220
Mfr. Part No.:: 3210923
Brand:: Phoenix Contact

Phoenix Contact 3210923 PTTB 2.5-DIO/O-U Series Component Terminal Block Grey, 0.14mm², 4 mm², 2-Level, Push-in

Subtotal (1 pack of 5 units)*

£24.25

(exc. VAT)

£29.10

(inc. VAT)

FREE delivery for orders over £60.00

In Stock

Plus 290 unit(s) shipping from 07 September 2026
Plus 75 unit(s) shipping from 07 September 2026

Need more? Click ‘Check delivery dates’ to find extra stock and lead times.

Units	Per unit	Per Pack*
5 +	£4.85	£24.25

*price indicative

Phoenix Contact Jumper Bars

Easy to use and made of high quality materials, Phoenix Contact Jumper Bars are a reliable choice for efficient and safe electrical connections.

Buy Phoenix Contact Jumper Bars

RS Stock No.:: 687-9758
Distrelec Article No.:: 304-01-220
Mfr. Part No.:: 3210923
Brand:: Phoenix Contact

Specifications

Technical Reference

Legislation and Compliance

Product Details

Find similar products by selecting one or more attributes.

Select all	Attribute	Value
	Brand	Phoenix Contact
	Colour	Grey
	Product Type	Component Terminal Block
	Sub Type	Component
	Number of Levels	2
	Voltage	500V
	Series	PTTB 2.5-DIO/O-U
	Cable CSA	0.14, 4mm²
	Minimum Wire Size AWG	26AWG
	Fused	No
	Maximum Wire Size AWG	12AWG
	Termination Type	Push-in
	Minimum Operating Temperature	-60°C
	Terminal Block Current	20A
	Maximum Operating Temperature	105°C
	Hazardous Area Certification	No
	Standards/Approvals	CSA, cULus, EAC

	Select all
	Brand Phoenix Contact
	Colour Grey
	Product Type Component Terminal Block
	Sub Type Component
	Number of Levels 2
	Voltage 500V
	Series PTTB 2.5-DIO/O-U
	Cable CSA 0.14, 4mm²
	Minimum Wire Size AWG 26AWG
	Fused No
	Maximum Wire Size AWG 12AWG
	Termination Type Push-in
	Minimum Operating Temperature -60°C
	Terminal Block Current 20A
	Maximum Operating Temperature 105°C
	Hazardous Area Certification No
	Standards/Approvals CSA, cULus, EAC

COO (Country of Origin):: CN

Phoenix Contact Double-Level Terminal Block, 500V, 20A - PTTB 2.5-DIO/O-U - 3210923

Use this terminal block from Phoenix Contact to make quick and secure connections between wiring and components in your equipment. It's designed to be mounted on a standard DIN rail, making for speedy installation and compatibility with common fittings.

The terminal block's push-in termination method lets you remove and rearrange your circuitry rapidly with no tooling required. This cuts down on maintenance and repair time and makes it easy to adapt or update your electrical system.

As it has a surge voltage rating of 6kV, this device will protect your equipment in case of over-voltage or short circuits, increasing workplace safety. The grey PA (polyamide) housing material offers excellent durability and strength, ensuring reliable performance over a long service life.

• Cable cross-sectional area of 0.14 to 4mm²

• Grey in colour

• Two levels

• Current rating of 20A

• Voltage rating of 500V

• Wire size of 26 to 12AWG (American Wire Gauge)

• Complies with RoHS (Restriction of Hazardous Substances) standards, indicating it contains only trace amounts of any harmful materials

• UL (Underwriter Laboratories) 94-V0 flammability rating means the product will burn for no more than 15 seconds when exposed to a naked flame

Diode and Lamp Terminal Blocks

Using the diode terminal blocks of the PT push-in connection terminal blocks makes it possible to solve a variety of switching tasks. The diode is integrated either from left to right or vice versa in the terminal housings. Three and four-conductor terminal blocks are also available for multi-conductor connections.

Integrated diodes (1N 4007) and lamps on certain parts

Push-In technology with 50 % less insertion force for direct plugging from 0.34 mm²

Configurations include lamp test circuits and fault message circuits

Push-In Connection Terminal Blocks

The PT series is characterised by easy, direct conductor connection, and it consistently uses the advantages of the CLIPLINE complete system. The up to 50% lower insertion forces of the PT push-in connection method also allows easy and direct plugging of solid and stranded conductors with ferrules of 0.34mm² and up.