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Type BM - Ceramic terminal blocks for 3 phase asynchronous electrical motors 450V range (BM154,BM185,BM205,BM235,BM256,BM286,BM358)

Type BM - Ceramic terminal blocks for 3 phase asynchronous electrical motors 450V range (BM154,BM185,BM205,BM235,BM256,BM286,BM358)

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Ceramic Blocks
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Main applications

Allows the connection and switching of three-phase star-delta or two separate winding motors, especially for motors with a high operating temperature, particularly in fumes and heat extracting fans.

These terminal blocks are also used for the star delta switching of three-phase heaters.

Main features

Material: Steatite C221(This high-quality ceramic does not require glazing)

Voltage: 450V

Terminals and screws: zinc-plated steel or brass

Shunts: Brass

Insulation distances: > 3mm on backside

Walls of terminal dividers: height 4mm, thickness 5mm

Temperature resistance: 240°C (460°F) continuous, 400°C (750°F) 2 hours peak).

Marking: U1, V1, W1 and U2, V2, W2 (according to IEC 60034-8)

Recommended tightening torques for nuts:

M4: 1.2N.m; M5: 2.5N.m; M6: 3.5N.m; M8: 7N.m

Applicable Standards: IEC 60034-8 and NFC 51-120

See datasheet for all charactéristics and drawings

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