Technical Data · Publication 1492-TD015 · Rockwell Automation

Allen-Bradley Bulletin 1492 Terminal Block Specifications

This technical data publication lists specifications for Allen-Bradley Bulletin 1492 terminal blocks. It covers IEC screw type and spring clamp type terminal blocks, IEC accessories, NEMA terminal blocks and accessories, and power blocks. Data per catalog number includes certifications, voltage and current ratings, wire range, strip length, tightening torque, density, and housing temperature range.

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1492-TD015A-EN-P, Augu… Publication
90 Pages
1000V AC/DC IEC Voltage Rating (1492-J10, J16, J35)
-58…+248 Housing Temperature (1492-J series)

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Specifications

Mini Single-Circuit Blocks (1492-WM3 / WM4)

Wire strip length 0.24 in. (6 mm) WM3; 0.39 in. (10 mm) WM4
Recommended tightening torque 4.2…4.6 lb•in (0.47…0.52 N•m) WM3; 4.7…6.2 lb•in (0.53…0.70 N•m) WM4
Density 61 pcs/ft (200/m) WM3; 50 pcs/ft (166/m) WM4
Housing temperature range -40…+195 °F (-40…+90 °C)

Feed-Through Blocks (1492-J3 / J4 / J6)

Voltage rating (CSA) 600V AC/DC
Voltage rating (IEC) 800V AC/DC
Wire strip length 10 mm J3; 10 mm J4; 12 mm J6
Recommended tightening torque 4.5…7.1 lb•in (0.5…0.8 N•m) J3; 9.0 lb•in (1.0 N•m) J4; 14.2 lb•in (1.6 N•m) J6
Density 59 pcs/ft J3; 49 pcs/ft J4; 37 pcs/ft J6
Housing temperature range -58…+248 °F (-50…+120 °C)

Feed-Through Blocks (1492-J10 / J16 / J35)

Voltage rating (IEC) 1000V AC/DC
Wire strip length 12 mm J10; 16 mm J16; 18 mm J35
Recommended tightening torque 20.4 lb•in (2.3 N•m) J10; 35.0 lb•in (4.0 N•m) J16; 51.0 lb•in (5.8 N•m) J35
Density 30 pcs/ft J10; 25 pcs/ft J16; 19 pcs/ft J35

Feed-Through Blocks (1492-J50 / J70 / J120)

Wire strip length 24 mm J50; 22 mm J70; 27 mm J120
Recommended tightening torque 31.5 lb•in (3.6 N•m) J50; 87.0 lb•in (9.8 N•m) J70; 141.6 lb•in (16.0 N•m) J120
Density 16 pcs/ft J50; 14 pcs/ft J70; 11 pcs/ft J120

Single-Circuit Blocks (1492-W3 / W4 / W6)

Wire strip length 10 mm W3; 9 mm W4; 12 mm W6
Recommended tightening torque 5.0…5.6 lb•in (0.6 N•m) W3 and W4; 5.6…6.8 lb•in (0.7 N•m) W6
Density 61 pcs/ft W3; 50 pcs/ft W4; 43 pcs/ft W6
Housing temperature range -40…+195 °F (-40…+90 °C)

Fuse Blocks (1492-J6FB1 / J6FB2)

Voltage rating (J6FB1/J6FB2) 600V AC/DC (UL, CSA); 500V AC/DC (IEC)
Maximum current, J6FB1 10 A (UL); 16 A (CSA); 6.3 A (IEC)
Maximum current, J6FB2 10 A (UL); 10 A (CSA); 6.3 A (IEC)
Fuse size (not supplied) 1/4 x 1-1/4 in. (J6FB1); 5 x 20 mm (J6FB2)
Leakage current ≤ 0.5 mA at nominal voltage
Housing temperature range -58…+248 °F (-50…+120 °C)

Certifications & Compliance

UL cURus CSA IEC ATEX

Document Contents

Full PDF covers the following topics in detail:

  • IEC Screw Type Terminal Blocks
  • IEC Spring Clamp Type Terminal Blocks
  • IEC Terminal Block Accessories
  • NEMA Terminal Blocks
  • NEMA Terminal Block Accessories
  • Power Blocks

Frequently Asked Questions

What terminal block families are covered in publication 1492-TD015?
The publication covers IEC screw type terminal blocks, IEC spring clamp type terminal blocks, IEC terminal block accessories, NEMA terminal blocks, NEMA terminal block accessories, and power blocks, all under Bulletin 1492.
Which certifications are listed for Bulletin 1492 terminal blocks?
Certifications are listed per catalog number. Depending on the block, the tables show UL, cURus, CSA, IEC, and ATEX ratings, often with a different voltage and current rating for each certification.
What is the IEC voltage rating of the 1492-J series feed-through blocks?
The 1492-J10, J16, and J35 are rated 1000V AC/DC (IEC). The 1492-J3, J4, and J6 are rated 800V AC/DC (IEC) and 600V AC/DC (CSA).
What housing temperature range applies to the 1492-J feed-through blocks?
The 1492-J feed-through terminal blocks list a housing temperature range of -58…+248 °F (-50…+120 °C).
What fuse sizes do the 1492-J6FB fuse blocks use?
The 1492-J6FB1 uses 1/4 x 1-1/4 in. fuses and the 1492-J6FB2 uses 5 x 20 mm fuses. Fuses are not supplied.
What is the mounting density of the 1492-W3 single-circuit terminal block?
The 1492-W3 has a density of 61 pcs/ft (200 pcs/m).
Where can I find general installation guidelines?
The publication refers to Industrial Automation Wiring and Grounding Guidelines, publication 1770-4.1, for general installation guidance.

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