300 and 300R Wire-Protector PCB Terminal Blocks

Series Part Number

Part Number: ULO - TB25 - 300R / 5.0 - 02 P - 4 000A
Explanation:

Brand

ULO - Product brand

Series Code

TB25 - 5mm models
TB37 - 7.5mm models

Model

300 - Side wire entry, top screw access
300R - Top wire entry, side screw access

Pitch

5.0 - 5mm; TB25
7.5 - 7.5mm; TB37; both pitches apply to 300 and 300R

Positions

02-24 - 2-24 poles; use a two-digit code

Position Unit

P - Poles

Color

1 - Gray
2 - Blue
3 - Black
4 - Green
5 - Orange
6 - Red
7 - Transparent
8 - Yellow
9 - White

Product Version

000A - Standard product

Description

Screw terminals with side or top wire entry

The 300 family uses screw-operated wire protectors in a single row. Standard 300 models accept wires from the side with screw access from above. The 300R orientation places wire entry above the PCB and screw access at the side. All four models cover 2–24 poles.

ModelSeries codePitchWire entryScrew access
300/5.0TB255mmSideTop
300R/5.0TopSide
300/7.5TB377.5mmSideTop
300R/7.5TopSide

Electrical ratings

ModelsIEC currentRated voltageImpulse voltageOvervoltage categoryPollution degree
300/5.0, 300R/5.024A250V4kVIII2
300/7.5, 300R/7.5450V6kV
UL use groupCurrentVoltageWire range
B10A300V22–14AWG
CNot specifiedNot specifiedNot separately specified
D10A300V22–14AWG

The UL values apply to all four models. The IEC voltage and impulse rating depend on pitch.

Wire preparation and service conditions

PropertyAll four models
Solid conductor1–2.5mm²
Flexible conductor1–2.5mm²
Flexible conductor with ferrule1–2.5mm²
Clamping screwM2.5
Tightening torque0.4N·m
Strip length6mm
HousingPA66, UL94V-0
Insulation material groupI
Protection levelIP20
Operating temperature-40°C to 105°C
RoHS complianceSpecified
ModelSolder pinWire-protector springConductor blockScrew material
300/5.0Tin-plated brassNot separately specifiedNot separately specifiedZinc-plated steel
300/7.5Stainless steel
300R/5.0, 300R/7.5Not separately specifiedTin-plated brassNickel-plated brass

Body dimensions and PCB patterns

N is the number of poles. All dimensions below are in millimetres. Each model uses 1mm-diameter pins and a PCB pattern with 1.2mm-diameter holes.

ModelBody lengthBody depth × height above PCBPin spanLongitudinal end referencePin projectionTransverse PCB reference
300/5.05N9×12.55(N−1)2.54.3±0.34.3 in PCB layout
300R/5.012.5×9Not separately dimensioned4.5±0.33.4
300/7.57.5N9×12.57.5(N−1)3.754.34.3 in PCB layout
300R/7.512.5×94.5±0.33.4

The standard 300 side sections mark a 4.1mm edge-to-pin reference, while their PCB layouts mark 4.3mm. Both view-specific dimensions are retained in the individual drawings.

300 5mm wire-protector terminal outline and PCB pattern
300/5.0 with 4.3±0.3mm solder-pin projection, 1.2mm PCB holes and a 2.5mm longitudinal end reference.
300R 5mm terminal block section and PCB layout
300R/5.0 top-entry orientation with 4.5±0.3mm pin projection and a 3.4mm transverse PCB reference.
300 7.5mm wire-protector terminal dimensions
300/7.5 with 7.5Nmm body length, 3.75mm longitudinal end reference and 4.3mm pin projection.
300R 7.5mm terminal block outline and PCB pattern
300R/7.5 with 7.5mm pitch, 1mm-diameter pins and a 3.4mm transverse PCB reference.

General drawing tolerances

Apply individual tolerances where stated. Other dimensions use the following general tolerances; ranges and deviations are in millimetres.

Dimension rangeTotal pitch toleranceNominal dimension tolerance
0–30±0.18±0.20
>30–53±0.20±0.25
>53–70±0.25±0.30
>70–90±0.30±0.35
>90–115±0.35±0.44
>115–150±0.44±0.55
>150–200±0.55±0.70
>200–250±0.70±0.80
>250–320±0.75±0.90
Geometric propertyRangeTolerance
PerpendicularityUp to 10mm0.2mm
Over 10mm0.3mm
SymmetryAll dimensions0.3mm
StraightnessUp to 100mm0.2mm
Parallelism100–150mm0.3mm
Over 150mm0.5mm

Ordering

Use TB25 for the 5mm models or TB37 for the 7.5mm models, followed by the complete 300 or 300R designation and pitch. XXP represents 02–24 poles; the standard drawing suffix is Y000A, where Y denotes colour.

Colour codeColour
1Grey
2Blue
3Black
4Green
5Orange
6Red
7Transparent
8Yellow
9White