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MS-21-140
TERMINAL BLOCK MARKERS
⚠️ Reference pricing provided. In case of supply shortages, we will connect you with our trusted procurement partners to ensure your project's continuity.
- Manufacturer: BEL / PARTNER STOCK
- Product type: Terminal Block Markers
- SVHC: To Be Advised
| Delivery and price | |
|---|---|
| Units per pack | 180 |
| Price | 1.5 € |
| Current stock | 1000+ |
| Lead time | 30 days |
Datasheet
## _**Barrier Blocks**_ - **Interposing barriers between terminals yield higher electrical ratings and provide additional protection against frayed wire shorting.** - **A wide variety of barrier blocks makes it possible to select the combination of mechanical and electrical characteristics that best meet the exact requirements of your application.** - **A wide selection of optional terminals and fanning strips permits the equipment designer to choose the method of termination most suitable for his environmental specifications and manufacturing requirements.** **Insulation Material:** Molded monoblock, general purpose phenolic, black, UL Rated 94V-1 **Eyelets** : Material - Brass Plating - Nickel **Screws:** Material - Steel Plating - Nickel over copper flash **Solder Terminals:** Material - Brass Plating - Electro-Tin **Eyelets** : Material - Brass Plating - Nickel **Screws:** Material - Steel Plating - Nickel over copper flash **Solder Terminals:** Material - Brass Plating - Electro-Tin **Marker Strip Material:** Nema Grade XPC, UL Rated 94V-O **Operating Temperature:** -55° to +300°F **Certifications** : UL Recognized - File E61245 CSA - LR 31996 Oo Marketed exclusively through distribution. Call Toll Free: 1 (800) 323-9612 2-2 _**Barrier Blocks**_ ## **TERMINAL BLOCK QUICK REFERENCE** ||**Center-to-**|**Number**|**Single or**||||**Max.**|**Max.**|**Voltage**|**Voltage**|**Marker**| |---|---|---|---|---|---|---|---|---|---|---|---| ||**Center**|**of**|**Double**|**Screw**|**Operating**|**Current**|**Wire**|**Watts/**|**Rating**|**Rating**|**Strip**| |**Series Spacing**||**Terminals**|**Row**|**Size**|**Voltage**|**Rating**|**Size**|**Terminal**|**w/Marker **|**w/o Marker**|**Mounting**| ||||||||||||| |140|.375|1-25|Double|5-40|250 Volts|15 Amps|#16|3750|2000|1100|Bottom| ||||||||||||| |141|.438|1-20|Double|6-32|250 Volts|20 Amps|#14|5000|2400|1100|Bottom| ||||||||||||| |142|.563|1-17|Double|8-32|250 Volts|30 Amps|#10|7500|2600|1600|Bottom| ||||||||||||| |150|.688|1-10|Double|10-32|250 Volts|40 Amps|#10|10,000|2400|1500|Bottom| ||||||||||||| |151|.875|1-8|Double|12-32|250 Volts|50 Amps|#8|12,500|3400|1800|Bottom| ||||||||||||| |152|1.125|1-6|Double|1/4-28|250 Volts|70 Amps|#6|54,000|3800|2100|Bottom| ||||||||||||| |164|.375|1-21|Double|6-32|250 Volts|15 Amps|#14|3750|2000|1100|Bottom| ||||||||||||| |540|.375|2-31|Double|5-40|600 Volts|15 Amps|#16|3750|2300|2300|Top| ||||||||||||| |541|.438|2-30|Double|6-32|600 Volts|20 Amps|#14|5000|2800|2800|Top| ||||||||||||| |542|.563|2-26|Double|8-32|600 Volts|30 Amps|#10|7500|4000|4000|Top| ||||||||||||| |176|.375|2-10|Single|5-40|250 Volts|15 Amps|#16|3750|N/A|1100|N/A| Marketed exclusively through distribution. Call Toll Free: 1 (800) 323-9612 2-3 _.375 Density, 5-40 x 3/16" BH Screw, Open Bottom, Double Row_ ## _**Barrier Blocks Series 140**_ ## **Electrical Characteristics** **Voltage Rating:** 250 VAC RMS maximum **Current Rating:** 15 Amps maximum **Maximum Watts Per Terminal:** 3750 ## **Mechanical Characteristics** **Maximum Wire Size:** #16 AWG **Recommended Tightening Torque:** 9 lb.-in. ## **Dimensions** ## **Ordering Information** |**No. of**|**Standard Screw**|**“M”**|**“L”**| |---|---|---|---| |**Terminals**|**Catalog No.**|**Dim.**|**Dim.**| |1|1-140|.750|1.032| |2|2-140|1.125|1.407| |3|3-140|1.500|1.782| |4|4-140|1.875|2.157| |5|5-140|2.250|2.532| |6|6-140|2.625|2.907| |7|7-140|3.000|3.282| |8|8-140|3.375|3.657| |9|9-140|3.750|4.032| |10|10-140|4.125|4.407| |11|11-140|4.500|4.782| |12|12-140|4.875|5.157| |13|13-140|5.250|5.532| |14|14-140|5.625|5.907| |15|15-140|6.000|6.282| |16|16-140|6.375|6.657| |17|17-140|6.750|7.032| |18|18-140|7.125|7.407| |19|19-140|7.500|7.782| |20|20-140|7.875|8.157| |21|21-140|8.250|8.532| |22|22-140|8.625|8.907| |23|23-140|9.000|9.282| |24|24-140|9.375|9.657| |25|25-140|9.750|10.032| Marketed exclusively through distribution. Call Toll Free: 1 (800) 323-9612 2-4 _.375 Density, 5-40 x 3/16" BH Screw, Open Bottom, Double Row_ _**Barrier Blocks Series 140**_ ## **Solder Terminal Options** ## **Dimensions** “Y” Terminals “3/4W” Terminals “W” Terminals ## **Ordering Information** |**No. of**|||| |---|---|---|---| |**Terminals Catalo**|**Terminals Catalog No.**|**Catalog No.**|**Catalog No.**| |1|1-140-Y|1-140-3/4W|1-140-W| |2|2-140-Y|2-140-3/4W|2-140-W| |3|3-140-Y|3-140-3/4W|3-140-W| |4|4-140-Y|4-140-3/4W|4-140-W| |5|5-140-Y|5-140-3/4W|5-140-W| |6|6-140-Y|6-140-3/4W|6-140-W| |7|7-140-Y|7-140-3/4W|7-140-W| |8|8-140-Y|8-140-3/4W|8-140-W| |9|9-140-Y|9-140-3/4W|9-140-W| |10|10-140-Y|10-140-3/4W|10-140-W| |11|11-140-Y|11-140-3/4W|11-140-W| |12|12-140-Y|12-140-3/4W|12-140-W| |13|13-140-Y|13-140-3/4W|13-140-W| |14|14-140-Y|14-140-3/4W|14-140-W| |15|15-140-Y|15-140-3/4W|15-140-W| |16|16-140-Y|16-140-3/4W|16-140-W| |17|17-140-Y|17-140-3/4W|17-140-W| |18|18-140-Y|18-140-3/4W|18-140-W| |19|19-140-Y|19-140-3/4W|19-140-W| |20|20-140-Y|20-140-3/4W|20-140-W| |21|21-140-Y|21-140-3/4W|21-140-W| |22|22-140-Y|22-140-3/4W|22-140-W| |23|23-140-Y|23-140-3/4W|23-140-W| |24|24-140-Y|24-140-3/4W|24-140-W| |25|25-140-Y|25-140-3/4W|25-140-W| Solder Terminals can be ordered separately. **Terminal Type Catalog No.** “Y” Y-140 “3/4W” 3/4W-140 “W” W-140 Marketed exclusively through distribution. Call Toll Free: 1 (800) 323-9612 2-5 _.375 Density, 5-40 x 3/16" BH Screw, Open Bottom, Double Row_ **2** ## _**Barrier Blocks Series 140**_ ## **Marker Strips** ## **Dimensions** **==> picture [308 x 8] intentionally omitted <==** **----- Start of picture text -----**<br> Standard “Y” Terminal<br>**----- End of picture text -----**<br> ## **Ordering Information** |**No. of**||| |---|---|---| |**Terminals**|**Catalog No.**|**Catalog No.**| |1|MS-1-140|MS-1-140-Y| |2|MS-2-140|MS-2-140-Y| |3|MS-3-140|MS-3-140-Y| |4|MS-4-140|MS-4-140-Y| |5|MS-5-140|MS-5-140-Y| |6|MS-6-140|MS-6-140-Y| |7|MS-7-140|MS-7-140-Y| |8|MS-8-140|MS-8-140-Y| |9|MS-9-140|MS-9-140-Y| |10|MS-10-140|MS-10-140-Y| |11|MS-11-140|MS-11-140-Y| |12|MS-12-140|MS-12-140-Y| |13|MS-13-140|MS-13-140-Y| |14|MS-14-140|MS-14-140-Y| |15|MS-15-140|MS-15-140-Y| |16|MS-16-140|MS-16-140-Y| |17|MS-17-140|MS-17-140-Y| |18|MS-18-140|MS-18-140-Y| |19|MS-19-140|MS-19-140-Y| |20|MS-20-140|MS-20-140-Y| |21|MS-21-140|MS-21-140-Y| |22|MS-22-140|MS-22-140-Y| |23|MS-23-140|MS-23-140-Y| |24|MS-24-140|MS-24-140-Y| |25|MS-25-140|MS-25-140-Y| Use Standard Marker Strips for “3/4W” and “W” Solder Terminals. ## **Accessories** - Jumpers - Fanning Strips Marketed exclusively through distribution. Call Toll Free: 1 (800) 323-9612 2-6 _.438 Density, 6-32 x 1/4" BH Screw, Open Bottom, Double Row_ _**Barrier Blocks Series 141**_ ## **Electrical Characteristics** **Voltage Rating:** 250 VAC RMS maximum **Current Rating:** 20 Amps maximum **Maximum Watts Per Terminal:** 5000 ## **Mechanical Characteristics** **Maximum Wire Size:** #14 AWG **Recommended Tightening Torque:** 12 lb.-in. ## **Dimensions** ## **Ordering Information** |**No. of**|**Standard Screw**|**“M”**|**“L”**| |---|---|---|---| |**Terminals**|**Catalog No.**|**Dim.**|**Dim.**| |1|1-141|.875|1.187| |2|2-141|1.312|1.625| |3|3-141|1.750|2.062| |4|4-141|2.187|2.500| |5|5-141|2.625|2.938| |6|6-141|3.062|3.375| |7|7-141|3.500|3.812| |8|8-141|3.938|4.250| |9|9-141|4.375|4.687| |10|10-141|4.813|5.125| |11|11-141|5.250|5.562| |12|12-141|5.687|6.000| |13|13-141|6.125|6.437| |14|14-141|6.562|6.875| |15|15-141|7.000|7.312| |16|16-141|7.437|7.750| |17|17-141|7.875|8.187| |18|18-141|8.312|8.625| |19|19-141|8.750|9.062| |20|20-141|9.187|9.500| Marketed exclusively through distribution. Call Toll Free: 1 (800) 323-9612 2-8 _.438 Density, 6-32 x 1/4" BH Screw, Open Bottom, Double Row_ _**Barrier Blocks Series 141**_ ## **Solder Terminal Options** ## **Dimensions** **==> picture [330 x 8] intentionally omitted <==** **----- Start of picture text -----**<br> “Y” Terminals “3/4W” Terminals “W” Terminals<br>**----- End of picture text -----**<br> ## **Ordering Information** |**No. of**|||| |---|---|---|---| |**Terminals**|**Catalog No.**|**Catalog No.**|**Catalog No.**| |1|1-141-Y|1-141-3/4W|1-141-W| |2|2-141-Y|2-141-3/4W|2-141-W| |3|3-141-Y|3-141-3/4W|3-141-W| |4|4-141-Y|4-141-3/4W|4-141-W| |5|5-141-Y|5-141-3/4W|5-141-W| |6|6-141-Y|6-141-3/4W|6-141-W| |7|7-141-Y|7-141-3/4W|7-141-W| |8|8-141-Y|8-141-3/4W|8-141-W| |9|9-141-Y|9-141-3/4W|9-141-W| |10|10-141-Y|10-141-3/4W|10-141-W| |11|11-141-Y|11-141-3/4W|11-141-W| |12|12-141-Y|12-141-3/4W|12-141-W| |13|13-141-Y|13-141-3/4W|13-141-W| |14|14-141-Y|14-141-3/4W|14-141-W| |15|15-141-Y|15-141-3/4W|15-141-W| |16|16-141-Y|16-141-3/4W|16-141-W| |17|17-141-Y|17-141-3/4W|17-141-W| |18|18-141-Y|18-141-3/4W|18-141-W| |19|19-141-Y|19-141-3/4W|19-141-W| |20|20-141-Y|20-141-3/4W|20-141-W| Solder Terminals can be ordered separately. **Terminal Type Catalog No.** “Y” Y-141 “3/4W” 3/4W-141 “W” W-141 Marketed exclusively through distribution. Call Toll Free: 1 (800) 323-9612 2-9 _.438 Density, 6-32 x 1/4" BH Screw, Open Bottom, Double Row_ **2** ## _**DURA-CON[®] Barrier Blocks High Reliability Series 141 All-Plastic**_ ## **Marker Strips** ## **Dimensions** **==> picture [270 x 8] intentionally omitted <==** **----- Start of picture text -----**<br> Standard “Y” Terminal<br>**----- End of picture text -----**<br> ## **Ordering Information** |**No. of**||| |---|---|---| |**Terminals**|**Catalog No.**|**Catalog No.**| |1|MS-1-141|MS-1-141-Y| |2|MS-2-141|MS-2-141-Y| |3|MS-3-141|MS-3-141-Y| |4|MS-4-141|MS-4-141-Y| |5|MS-5-141|MS-5-141-Y| |6|MS-6-141|MS-6-141-Y| |7|MS-7-141|MS-7-141-Y| |8|MS-8-141|MS-8-141-Y| |9|MS-9-141|MS-9-141-Y| |10|MS-10-141|MS-10-141-Y| |11|MS-11-141|MS-11-141-Y| |12|MS-12-141|MS-12-141-Y| |13|MS-13-141|MS-13-141-Y| |14|MS-14-141|MS-14-141-Y| |15|MS-15-141|MS-15-141-Y| |16|MS-16-141|MS-16-141-Y| |17|MS-17-141|MS-17-141-Y| |18|MS-18-141|MS-18-141-Y| |19|MS-19-141|MS-19-141-Y| |20|MS-20-141|MS-20-141-Y| Use Standard Marker Strip for “3/4W” and “W” Solder Terminals. ## **Accessories** - Jumpers - Fanning Strips Marketed exclusively through distribution. Call Toll Free: 1 (800) 323-9612 2-10 _.563 Density, 8-32 x 5/16" BH Screw, Open Bottom, Double Row_ _**Barrier Blocks Series 142**_ ## **Electrical Characteristics** **Voltage Rating:** 250 VAC RMS maximum **Current Rating:** 30 Amps maximum **Maximum Watts Per Terminal:** 7500 ## **Mechanical Characteristics** **Maximum Wire Size:** #10 AWG **Recommended Tightening Torque:** 16 lb.-in. ## **Dimensions** ## **Ordering Information** |**No. of**|**Standard Screw**|**“M”**|**“L”**| |---|---|---|---| |**Terminals**|**Catalog No.**|**Dim.**|**Dim.**| |1|1-142|1.125|1.531| |2|2-142|1.687|2.094| |3|3-142|2.250|2.656| |4|4-142|2.812|3.219| |5|5-142|3.375|3.781| |6|6-142|3.937|4.344| |7|7-142|4.500|4.906| |8|8-142|5.062|5.468| |9|9-142|5.625|6.031| |10|10-142|6.187|6.594| |11|11-142|6.750|7.156| |12|12-142|7.312|7.719| |13|13-142|7.875|8.281| |14|14-142|8.437|8.844| |15|15-142|9.000|9.406| |16|16-142|9.562|9.969| |17|17-142|10.125|10.531| Marketed exclusively through distribution. Call Toll Free: 1 (800) 323-9612 2-12 _.563 Density, 8-32 x 5/16" BH Screw, Open Bottom, Double Row_ _**Barrier Blocks Series 142**_ ## **Solder Terminal Options** ## **Dimensions** ## “Y” Terminals “3/4W” Terminals “W” Terminals ## **Ordering Information** ## **No. of** |**No. of**|||| |---|---|---|---| |**Terminals**|**Catalog No.**|**Catalog No.**|**Catalog No.**| |1|1-142-Y|1-142-3/4W|1-142-W| |2|2-142-Y|2-142-3/4W|2-142-W| |3|3-142-Y|3-142-3/4W|3-142-W| |4|4-142-Y|4-142-3/4W|4-142-W| |5|5-142-Y|5-142-3/4W|5-142-W| |6|6-142-Y|6-142-3/4W|6-142-W| |7|7-142-Y|7-142-3/4W|7-142-W| |8|8-142-Y|8-142-3/4W|8-142-W| |9|9-142-Y|9-142-3/4W|9-142-W| |10|10-142-Y|10-142-3/4W|10-142-W| |11|11-142-Y|11-142-3/4W|11-142-W| |12|12-142-Y|12-142-3/4W|12-142-W| |13|13-142-Y|13-142-3/4W|13-142-W| |14|14-142-Y|14-142-3/4W|14-142-W| |15|15-142-Y|15-142-3/4W|15-142-W| |16|16-142-Y|16-142-3/4W|16-142-W| |17|17-142-Y|17-142-3/4W|17-142-W| Solder Terminals can be ordered separately. **Terminal Type Catalog No.** “Y” Y-142 “3/4W” 3/4W-142 “W” W-142 Marketed exclusively through distribution. Call Toll Free: 1 (800) 323-9612 2-13 _.563 Density, 8-32 x 5/16" BH Screw, Open Bottom, Double Row_ **2** ## _**DURA-CON[®] Barrier Blocks High Reliability Series 142 All-Plastic**_ ## **Marker Strips** ## **Dimensions** **==> picture [305 x 8] intentionally omitted <==** **----- Start of picture text -----**<br> Standard “Y” Terminal<br>**----- End of picture text -----**<br> ## **Ordering Information** |**No. of**||| |---|---|---| |**Terminals**|**Catalog No.**|**Catalog No.**| |1|MS-1-142|MS-1-142-Y| |2|MS-2-142|MS-2-142-Y| |3|MS-3-142|MS-3-142-Y| |4|MS-4-142|MS-4-142-Y| |5|MS-5-142|MS-5-142-Y| |6|MS-6-142|MS-6-142-Y| |7|MS-7-142|MS-7-142-Y| |8|MS-8-142|MS-8-142-Y| |9|MS-9-142|MS-9-142-Y| |10|MS-10-142|MS-10-142-Y| |11|MS-11-142|MS-11-142-Y| |12|MS-12-142|MS-12-142-Y| |13|MS-13-142|MS-13-142-Y| |14|MS-14-142|MS-14-142-Y| |15|MS-15-142|MS-15-142-Y| |16|MS-16-142|MS-16-142-Y| |17|MS-17-142|MS-17-142-Y| Use Standard Marker Strips for “3/4W” and “W” Solder Terminals. ## **Accessories** - Jumpers - Fanning Strips Marketed exclusively through distribution. Call Toll Free: 1 (800) 323-9612 2-14 **2** ## _**DURA-CON[®] Barrier Blocks High Reliability Accessories All-Plastic**_ ## **Solder Terminals 3/4W,Y, and W** Optional Terminals for use with Cinch terminal blocks. See chart for type and dimensions. (Below) ## **Ordering Information** ## **"3/4 W" Terminals - Dimensions** |**Catalog**||**A**||**B**|||**C**|||**D**||**E**|||**F**|| |---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---| |**Number**|**in**|**mm**|**in**||**mm**|**in**||**mm**|**in**|**mm**|**in**||**mm**|**in**||**mm**| |3/4W-140|.953|24.21|.719||18.20|.312||7.92|.062|1.57|.146||3.71|.094||2.39| |3/4W-141|1.156|29.36|.680||17.27|.422||10.72|.078|1.98|.152||3.86|.125||3.18| |3/4W-142|1.422|36.11|.797||20.24|.500||12.70|.094|2.39|.177||4.50|.125||3.18| |**"Y" Terminals - Dimensions**||||||||||||||||| |**Catalog**||**A**||**B**|||**C**|||**D**||**E**|||**F**|| |**Number**|**in**|**mm**|**in**||**mm**|**in**||**mm**|**in**|**mm**|**in**||**mm**|**in**||**mm**| |Y-140|.281|7.14|.500||12.70|.136||3.45|.593|15.06|.093||2.36|.091||2.31| |Y-141|.312|7.92|.625||15.88|.152||3.86|.781|19.83|.125||3.18|.103||2.62| |Y-142|.421|10.69|.734||18.64|.177||4.50|.906|23.01|.125||3.18|.126||3.20| ## **"W" Terminals - Dimensions** |**Catalog**||**A**|||**B**|||**C**|||**D**|||**E**|||**F**|| |---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---| |**Number**|**in**||**mm**|**in**||**mm**|**in**||**mm**|**in**||**mm**|**in**||**mm**|**in**||**mm**| |W-140|1.219||30.96|.750||19.05|.312||7.92|.063||1.60|.146||3.71|.094||2.39| |W-141|1.563||39.70|.938||23.83|.422||10.72|.078||1.98|.152||3.86|.125||3.18| |W-142|1.875||47.63|1.094||27.79|.500||12.70|.094||2.39|.177||4.50|.125||3.18| Marketed exclusively through distribution. Call Toll Free: 1 (800) 323-9612 2-28 **2** ## _**Barrier Blocks Accessories**_ ## **Quick Clamp Terminals** Simplifies engaging of wires to barrier blocks. Wire is inserted into flared opening and screw is tightened. Screws are brass binder head type with nickel plating. Terminals are brass with tin plating. Includes two mating clamps and one screw. ## **Ordering Information** **QC-1 Shown** |**Barrier Block**||**Screw**|**Wire Gauge**| |---|---|---|---| |**Series**|**Catalog No.**|**Size**|**Range AWG**| |141,541|QC-1|6-32x5/16"|12 thru 22| |142,542|QC-2|8-32x3/8"|10 thru 16| ## **Jumpers** For connecting between adjacent terminals or alternate terminals. All jumpers are brass with nickel plating. **==> picture [308 x 160] intentionally omitted <==** **----- Start of picture text -----**<br> Ordering Information<br>Barrier Block<br>Series Type Catalog No.<br>140 A 140J-1<br>141 B 141J-1<br>141 F 141J<br>————— Ea<br>142 F 95B Type A<br>142, 542 D 142J-1*<br>142, 542 E 142J-2<br>540 C 540J<br>541 C 541J<br>542 C 542J<br>**----- End of picture text -----**<br> **Type B** **Type C** - Connects two alternate terminals **Type D** **Type E** **Type F** Marketed exclusively through distribution. Call Toll Free: 1 (800) 323-9612 2-29
Updated at April 16, 2026
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