3RV1913-7D

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Enclosures

For installing circuit breakers of sizes S00 (I_{n max} = 12 A) S0 (I_{n max} = 25 A) and S2 (_In max = 50 A) as a single unit, molded-plastic and 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 circuit breakers have a rated operational voltage U_e of 500 V.

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

Enclosures for surface mounting

Enclosures for flush mounting

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 circuit breaker without accessories, with transverse and lateral auxiliary switch, whereas wide enclosures and enclosures for S2 circuit breakers also provide space for a laterally mounted auxiliary release. There is no provision for installing a circuit breaker with an alarm switch.

With size S00 circuit breakers, the switch rocker is operated by means of the actuator diaphragm of the enclosure. A locking device, capable of holding up to three padlocks, can be fitted onto the actuator diaphragm to prevent the circuit breaker from closing during maintenance work, for example.

A mushroom-shaped EMERGENCY-STOP knob can be fitted in place of the locking device. If it is actuated abruptly, the circuit breaker opens and the mushroom-shaped knob latches. The knob can be unlatched again either by turning it or by using a special key. The circuit breaker can subsequently be switched on again.

With size S0 and S2 circuit breakers the molded-plastic enclosures are equipped 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 plate

Circuit breakers are frequently required to be actuated in any enclosure. Front plates equipped with an actuator diaphragm for size S00 motor starter protectors, or rotary operating mechanism for S0 to S3 motor starter protectors are available for this purpose.

A holder for the motor starter protectors size S00, into which the motor starter protectors can be snapped, is available for the front plates. A holder for size S0 motor starter protectors can be additionally ordered for front plate sizes S0 to S3.

Front plate for size S00

Accessories for enclosures and front plates

Accessories for size S00