3RA1921-1DA00

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Solder pin connections

Solder pin connections are available for the main contacts and transverse auxiliary switches of size S00 motor starter protectors.

The prepared terminal parts are clamped to the upper and lower screw terminals of the motor starter protectors which allows them to be soldered into printed circuit boards.

SIRIUS 3RV1918‑5A motor starter protectors with solder pin connections

Terminal blocks for "Self-Protected Combination Motor Controllers (Type E)" according to UL 508/UL 60497‑4‑1

The 3RV10 motor starter protectors size S0 and higher are approved according to UL 508/UL 60497‑4‑1 as "Self-Protected Combination Motor Controllers (Type E)".

This requires increased clearance and creepage distances (1 inch and 2 inches respectively) at the input side of the device, which are achieved by mounting terminal blocks.

• Size S0: The 3RV1928‑1H terminal block is simply screwed onto the basic unit.
• Size S2: The basic unit is already compliant with the new clearance and creepage distance requirements.
• Size S3: The standard box terminal must be replaced by the 3RT1946‑4GA07 terminal block.

SIRIUS 3RV1928‑1H terminal block (Type E)

SIRIUS 3RT1946-4GA07 terminal block (TypeВ E)

According to CSA, the terminal blocks can be omitted when the device is used as a "Self-Protected Combination Motor Controller" (TypeВ E).

Three-phase feeder terminals are required for constructing "Type E Starters" with an insulated busbar system (see Busbar Accessories).