3RV1903-5G

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Enclosures

For stand-alone installation of 3RV20 to 3RV24 motor starter protectors size S00 (I_nВ maxВ =В 16В A), S0 (I_nВ maxВ =В 32В A) and S2 (I_nВ max =В 65В A), cast aluminum enclosures for surface mounting and molded-plastic enclosures for flush mounting are available in various dimensions.

When installed in a molded-plastic enclosure the motor starter protectors have a rated operational voltage U_e of 500 V.

The enclosures for surface mounting have the degree of protection IP55; the enclosures for flush mounting also comply with the degree of protection IP55 at the front (the flush-mounted section complies with IP20).

Enclosures for surface mounting

Enclosures for flush mounting (for sizes S00 and S0 only)

All enclosures are equipped with N and PE terminals. There are two knock-out cable entries for cable glands at the top and two at the bottom; also on the rear corresponding cable entries are scored. There is a knockout on the top of the enclosure for indicator lights that are available as accessories.

The narrow enclosure can accommodate a motor starter protector without accessories, with transverse auxiliary switch and with lateral auxiliary switch. There is no provision for installing a circuit breaker with an alarm switch.

The molded-plastic enclosures of sizes S00 to S2 motor starter protectors are fitted with a rotary operating mechanism.

The enclosures can either be supplied with a black rotary operating mechanism or with an EMERGENCY-STOP rotary operating mechanism with a red/yellow knob.

In the OFF setting, all rotary operating mechanisms can be locked with up to three padlocks.

Front plates

Circuit breakers are frequently required to be actuated in any enclosure. Front plates equipped with a rotary operating mechanism for 3RV20 to 3RV24 motor starter protectors size S00 to S2 are available for this purpose.

A holder for the motor starter protectors size S00 and S0, into which the motor starter protectors can be snapped, is available for the front plates.

Front plate (including holder) for sizes S00 and S0