• Siemens SIRIUS 3RT Terminal Covers & Sealable Covers
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Siemens SIRIUS 3RT Terminal Covers & Sealable Covers

Siemens SIRIUS 3RT Terminal Covers & Sealable Covers

Terminal covers for box terminals, cable lugs and busbar connections, and sealable covers for SIRIUS 3RT contactors.

Key features

  • Terminal covers for 3- and 4-pole contactors with box terminals (S2 to S12)
  • Covers for cable lug and busbar connections, lengths 27 to 120 mm
  • Covers for free screw ends M8/M10
  • Sealable covers to prevent manual operation

Specifications

Brand line SIRIUS
Accessory for SIRIUS 3RT contactors / 3RH2 relays
Manufacturer Siemens
Product category Accessories
Catalog chapter Contactors for switching motors
Catalog section 3RT/3RH2 accessories: Covers
Source Siemens Catalog IC 10 · 2026, p. 240
3RT2936-4EA2 Item: Terminal cover, box terminals, 3-pole | For: 3RT203 (S2) | Detail: 2 units required per contactor
3RT2946-4EA2 Item: Terminal cover, box terminals, 3-pole | For: 3RT204, 3RT244 (S3) | Detail: 2 units required per contactor
3RT1956-4EA2 Item: Terminal cover, box terminals, 3-pole | For: 3RT1.5 (S6) | Detail: 2 units required per contactor
3RT1966-4EA2 Item: Terminal cover, box terminals, 3-pole | For: 3RT1.6, 3RT1.7 (S10/S12) | Detail: 2 units required per contactor
3RT2936-4EA4 Item: Terminal cover, box terminals, 4-pole | For: 3RT233, 3RT253 (S2) | Detail: One 3-pole + two 1-pole covers
3RT2946-4EA4 Item: Terminal cover, box terminals, 4-pole | For: 3RT234, 3RT254 (S3) | Detail: One 3-pole + two 1-pole covers
3RT1946-4EA1 Item: Cover, cable lug/busbar conn. | For: 3RT2.4 (S3) | Detail: Length 100 mm
3RT1956-4EA1 Item: Cover, cable lug/busbar conn. | For: 3RT1.5 (S6) | Detail: Length 100 mm
3RT1966-4EA1 Item: Cover, cable lug/busbar conn. | For: 3RT1.6, 3RT1.7 (S10/S12) | Detail: Length 120 mm
3RT1956-4EA4 Item: Cover for 3RA1953 kits/modules | For: 3RT1.5 (S6) | Detail: Length 38 mm
3RT1966-4EA3 Item: Cover for assembly kits / busbar conn. | For: 3RT1.6, 3RT1.7 (S10/S12) | Detail: Length 42 mm
3RT1956-4EA3 Item: Terminal cover for busbar connections | For: 3RT1.5 (S6) | Detail: Length 27 mm
3TX6526-3B Item: Cover for free screw end (1 set=6) | For: 3RT1.5 (S6) | Detail: M8
3TX6546-3B Item: Cover for free screw end (1 set=6) | For: 3RT1.6, 3RT1.7 (S10/S12) | Detail: M10
3RT2916-4MA10 Item: Sealable cover (PS 5 units) | For: 3RT2.1-3RT2.4, 3RH2 (S00-S3) | Detail: Prevents manual operation
3RT1926-4MA10 Item: Sealable cover (PS 5 units) | For: 3RT1.5-3RT1.7 (S6-S12) | Detail: Prevents manual operation
AccessoriesSiemens
16 product codes available in this family
Sourced direct from KoreaExport-ready supplyCompetitive pricing
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Siemens SIRIUS 3RT Terminal Covers & Sealable Covers

Brand Siemens·Accessories

Available part numbers (16)

3RT2936-4EA2, 3RT2946-4EA2, 3RT1956-4EA2, 3RT1966-4EA2, 3RT2936-4EA4, 3RT2946-4EA4, 3RT1946-4EA1, 3RT1956-4EA1, 3RT1966-4EA1, 3RT1956-4EA4 + 6 more — see full table ↓

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Product codes & specifications
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Product codeSpec
3RT2936-4EA2Item: Terminal cover, box terminals, 3-pole | For: 3RT203 (S2) | Detail: 2 units required per contactor
3RT2946-4EA2Item: Terminal cover, box terminals, 3-pole | For: 3RT204, 3RT244 (S3) | Detail: 2 units required per contactor
3RT1956-4EA2Item: Terminal cover, box terminals, 3-pole | For: 3RT1.5 (S6) | Detail: 2 units required per contactor
3RT1966-4EA2Item: Terminal cover, box terminals, 3-pole | For: 3RT1.6, 3RT1.7 (S10/S12) | Detail: 2 units required per contactor
3RT2936-4EA4Item: Terminal cover, box terminals, 4-pole | For: 3RT233, 3RT253 (S2) | Detail: One 3-pole + two 1-pole covers
3RT2946-4EA4Item: Terminal cover, box terminals, 4-pole | For: 3RT234, 3RT254 (S3) | Detail: One 3-pole + two 1-pole covers
3RT1946-4EA1Item: Cover, cable lug/busbar conn. | For: 3RT2.4 (S3) | Detail: Length 100 mm
3RT1956-4EA1Item: Cover, cable lug/busbar conn. | For: 3RT1.5 (S6) | Detail: Length 100 mm
3RT1966-4EA1Item: Cover, cable lug/busbar conn. | For: 3RT1.6, 3RT1.7 (S10/S12) | Detail: Length 120 mm
3RT1956-4EA4Item: Cover for 3RA1953 kits/modules | For: 3RT1.5 (S6) | Detail: Length 38 mm
3RT1966-4EA3Item: Cover for assembly kits / busbar conn. | For: 3RT1.6, 3RT1.7 (S10/S12) | Detail: Length 42 mm
3RT1956-4EA3Item: Terminal cover for busbar connections | For: 3RT1.5 (S6) | Detail: Length 27 mm
3TX6526-3BItem: Cover for free screw end (1 set=6) | For: 3RT1.5 (S6) | Detail: M8
3TX6546-3BItem: Cover for free screw end (1 set=6) | For: 3RT1.6, 3RT1.7 (S10/S12) | Detail: M10
3RT2916-4MA10Item: Sealable cover (PS 5 units) | For: 3RT2.1-3RT2.4, 3RH2 (S00-S3) | Detail: Prevents manual operation
3RT1926-4MA10Item: Sealable cover (PS 5 units) | For: 3RT1.5-3RT1.7 (S6-S12) | Detail: Prevents manual operation

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