500 Rising Clamp PCB Terminals in 5.0mm and 5.08mm Pitch

Series Part Number

Part Number:	ULO	-	TB91	-	500AA	/	5.0	-	2	x	02	P	-	4	0	0	0A
Explanation:	Code Prefix		Series TB91 - 5.0mm pitch TB93 - 5.08mm pitch; this breakdown excludes TB93-500HH and TB93-500A3		Body Configuration 500V - Base single-level 500 version in the exact PDF code 500H - Raised single-level version 500HH - Higher single-level version; TB91 only here 500A, 500B - Two stepped levels, different stagger directions 500AA, 500BB - Two higher stepped levels, different stagger directions 500A3 - Three stepped levels; TB91 only here 500B3 - Three stepped levels, alternate stagger direction		Pitch 5.0 - TB91: 5.0mm 5.08 - TB93: 5.08mm		Level Format 2 - AA or BB: two levels; include the following x 3 - A3 or B3: three levels; include the following x Blank - Base, H, HH, A or B: omit this digit and x; A/B still contain two levels		Positions per Level 02–24 - 2–24 positions per level; preserve two digits. Total terminals equal the position count times the model's level count	Count Suffix P - Position-count suffix		Color 1 - Gray 2 - Blue 3 - Black 4 - Green 5 - Orange 6 - Red 7 - Transparent 8 - Yellow 9 - White	Screw Head 0 - Slotted 1 - Cross recess	Screw Clamping 0 - Screw down 1 - Screw up	Configuration 0A - Standard product

Description

Single and stepped PCB connections

The 500 family connects field wiring directly to a soldered PCB through a screw-operated rising clamp. TB91 models use 5.0mm pitch and TB93 models use 5.08mm pitch. Base, H and HH versions provide one row at different heights; A/B, AA/BB and A3/B3 versions arrange the terminals in two or three stepped levels. A and B variants have different stagger directions: use the exact footprint.

5.0mm model	5.08mm model	Levels	Positions per level	Nominal terminal heights	IEC current
TB91-500/5.0	TB93-500/5.08	1	2–24	13.8mm	18A
TB91-500H/5.0	TB93-500H/5.08			25.6mm	24A
TB91-500HH/5.0	TB93-500HH/5.08			TB91: 36.8mm; TB93: 36.6mm	24A
TB91-500A/5.0	TB93-500A/5.08	2		13.8mm and 25.6mm	18A
TB91-500B/5.0	TB93-500B/5.08			13.8mm and 25.6mm
TB91-500AA/5.0	TB93-500AA/5.08			25.6mm and 36.8mm for TB91; 25.6mm and 36.6mm for TB93
TB91-500BB/5.0	TB93-500BB/5.08			25.6mm and 36.8mm for TB91; 25.6mm and 36.6mm for TB93
TB91-500A3/5.0	TB93-500A3/5.08	3		13.8mm, 25.6mm and 36.8mm for TB91; upper level 36.6mm for TB93
TB91-500B3/5.0	TB93-500B3/5.08	3		13.8mm, 25.6mm and nominal 36.6mm in the B3 drawings

Two-level assemblies contain 4–48 terminals and three-level assemblies contain 6–72 terminals when each level has the stated 2–24 positions. The 500V code visible in the base-model attachments is an alternate drawing designation for the base 500 configuration.

Electrical ratings and wiring

Condition or property	Base and all stepped versions	H and HH versions
IEC rated current	18A	24A
IEC voltage, overvoltage category III / pollution degree 2	250V
IEC impulse voltage, III / 2	4kV
IEC III / 3 and II / 2 voltage and impulse values	Not specified
UL use group B	20A, 300V
UL use group D	10A, 300V
UL use group C	Not specified
UL conductor range	Base 500: 30–12AWG; stepped versions: 28–12AWG	28–12AWG
Solid conductor	1–2.5mm²
Flexible conductor	1–2.5mm²
Flexible conductor with ferrule	1–2.5mm²
Connection screw and tightening torque	M2.5; 0.4N·m
Wire stripping length	500 and A/B: 6mm; AA/BB and A3/B3: 6mm nominal, with 6–7mm indicated on matching drawings	6mm
Separate fixing screw and torque	Not specified

TB93-500A3/5.08 uses a 6mm stripping length. Its attached 5.0mm reference drawing has a different 5–6mm note and does not define the 5.08mm version. TB93-500HH/5.08 uses the 28–12AWG model specification; the attached 5.0mm reference sheet does not establish its conductor range. The tabulated UL and IEC values are separate declared conditions, not interchangeable ratings or evidence of a particular certification.

Materials and operating limits

Property	Specification
Housing	PA66; insulation material group I; UL94V-0
Contacts and solder pins	Tin-plated copper alloy; brass identified in applicable drawings
Clamp block	Nickel-plated brass on base, H and stepped drawings; HH clamp material not established
Connection screw	M2.5; zinc-plated steel on applicable base, H and stepped drawings
Protection class	IP20
Operating temperature	-40°C to +105°C
Environmental declaration	RoHS compliance stated in the drawings; no certificate included

Ordering options

Code field	Selection
Model and pitch	Choose the complete TB91 or TB93 model from the selection table
Position count	02–24 per level; identify two or three levels explicitly for stepped versions
Colour digit	1: grey; 2: blue; 3: black; 4: green; 5: orange; 6: red; 7: transparent; 8: yellow; 9: white
Screw head digit	0: slotted; 1: cross recess
Screw clamping digit	0: screw down; 1: screw up
Standard configuration suffix	0A

Single-row dimensions and footprints

Dimensions are in millimetres. The nominal row length is pitch × n and the first-to-last pin span is pitch × (n−1), where n is the number of positions in that row. Solder tails project 3.5±0.3mm. Pin width and thickness are 1.0mm and 0.8mm where shown. Reference edges and end offsets vary by model.

Model	Body height	Body depth	PCB hole diameter	Footprint note
TB91-500/5.0	13.8mm	10.1mm	1.5mm	5.0mm pitch; 2.5mm longitudinal end offset
TB93-500/5.08	13.8mm	10.1mm	1.6mm	5.08mm pitch; 2.54mm longitudinal end offset
TB91-500H/5.0	25.6mm	11.8mm	Not specified	PCB end offset 2.54mm; transverse offset 1.6mm
TB93-500H/5.08	25.6mm	12.1mm	Not specified	PCB end offset 2.58mm; transverse offset 1.6mm
TB91-500HH/5.0	36.8mm	11.2mm	1.4mm	2.5mm end offset; transverse offset 1.6mm
TB93-500HH/5.08	36.6mm	11.2mm	1.4mm	2.5mm end offset; transverse datum 10.2mm from the opposite body edge

TB91-500 5.0mm dimensions — TB91-500/5.0 base outline and PCB layout. The attached base PDF includes a conflicting TB93/5.08 body marking; its 5.0mm dimensions apply to this TB91 model.

TB93-500 5.08mm dimensions — TB93-500/5.08 base outline and 1.6mm PCB holes.

TB91-500H 5.0mm dimensions — TB91-500H/5.0 raised single-row body. The 1.56mm side-view offset and 1.6mm PCB offset are retained as drawn.

TB93-500H 5.08mm dimensions — TB93-500H/5.08 raised body with its own end offset and 12.1mm depth.

TB91-500HH 5.0mm dimensions — TB91-500HH/5.0 tall body and PCB footprint.

TB93-500HH 5.08mm dimensions — TB93-500HH/5.08 uses this 5.08mm layout. The separate HH reference PDF is labelled TB91/5.0 and has a different transverse pin position; it is not a TB93-500HH footprint.

Two-level and three-level layouts

Versions	Nominal body depth	Spacing between PCB rows	PCB hole diameter
A and B at either pitch	21.9mm	15.24mm	1.5mm
AA and BB at either pitch	23mm	10.16mm	1.5mm
A3 and B3 at either pitch	31.8mm	10.16mm and 15.24mm between successive rows	1.5mm where dimensioned

Rows are staggered by half a pitch. Check the direction in the selected A or B drawing. Dimensions that describe a single row do not equal the complete staggered assembly envelope. The B3 5.0mm drawing specifies a 36.6±0.3mm upper height; a 36.8mm nominal value appears in related tall-body illustrations and should not replace that model-specific callout.

TB91-500A two-level dimensions — TB91-500A/5.0: two levels with the A stagger direction.

TB91-500B two-level dimensions — TB91-500B/5.0: two levels with the B stagger direction.

TB93-500A two-level dimensions — TB93-500A/5.08: two-level 5.08mm outline and footprint.

TB93-500B two-level dimensions — TB93-500B/5.08: opposite stagger direction at 5.08mm pitch.

TB91-500AA raised two-level dimensions — TB91-500AA/5.0: raised two-level A layout.

TB91-500BB raised two-level dimensions — TB91-500BB/5.0: raised two-level B layout.

TB93-500AA raised two-level dimensions — TB93-500AA/5.08: 25.6mm and 36.6mm levels with 10.16mm PCB row spacing.

TB93-500BB raised two-level dimensions — TB93-500BB/5.08: raised B arrangement and its PCB reference edges.

TB91-500A3 three-level dimensions — TB91-500A3/5.0: three staggered terminal levels.

TB91-500B3 three-level dimensions — TB91-500B3/5.0: three-level B arrangement; consult its PDF for the 36.6±0.3mm upper height.

TB93-500A3 three-level dimensions — TB93-500A3/5.08: use this 5.08mm layout. The attached A3 reference PDF is dimensioned at 5.0mm and does not establish a 5.08mm PCB footprint.

TB93-500B3 three-level dimensions — TB93-500B3/5.08: use the PCB span 5.08 × (n−1) with n positions per row. The retained front-view N/2 formula is inconsistent with the three-row layout and is not used for selection.

General drawing tolerances

Apply these general values only where a matching drawing has no individual tolerance. Specific ±0.3mm callouts take precedence. Values do not validate the mismatched HH and A3 reference attachments for a different pitch.

Dimension range	Total pitch tolerance	Nominal dimension tolerance
Over 0–30mm	±0.18mm	±0.20mm
Over 30–53mm	±0.20mm	±0.25mm
Over 53–70mm	±0.25mm	±0.30mm
Over 70–90mm	±0.30mm	±0.35mm
Over 90–115mm	±0.35mm	±0.44mm
Over 115–150mm	±0.44mm	±0.55mm
Over 150–200mm	±0.55mm	±0.70mm
Over 200–250mm	±0.70mm	±0.80mm
Over 250–320mm	±0.75mm	±0.90mm

Geometric characteristic	Range	Tolerance
Perpendicularity	All	0.2mm
Symmetry	0–10mm	0.2mm
Symmetry	Over 10mm	0.3mm
Straightness	All	0.2mm
Parallelism	0–100mm	0.3mm
Parallelism	Over 100–150mm	0.5mm

500 Rising Clamp PCB Terminal Blocks