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Siemens | SKU:
5SY4250-5
70% off
5SY4250-5
$62.83
$207.00
Unit price
/
Unavailable
Shipping calculated at checkout.
Siemens 5SY4250-5 Two pole, 50 AMP Supplementary Circuit Breaker with tripping characteristic type A (low levels of inrush) - Mounts on standard 35mm DIN rail
Ships same day up until 4 p.m. EST
5-7 days for item to ship for standard delivery
Can be shipped direct from manufacturer for next day delivery if out of stock at IMC-DIRECT warehouse
5SY4250-5 Supplementary protectors are equipped with a delayed overload/ time-dependent thermal release (thermal bimetal) for low overcurrents and with an instantaneous electromagnetic release for high overload and short-circuit currents. The special contact materials used virtually guarantee a long service life and offer a high degree of protection against contact welding.
5SY4250-5 is backordered and will ship as soon as it is back in stock.
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Delivery and Shipping
Delivery and Shipping
We ship the same day on all in stock orders that are placed prior to 4 p.m. EST, Monday through Friday. We offer Flat Rate shipping ($9.00 for UPS Ground) and expedited shipping can be selected at checkout.
5SY4250-5
$62.83
$207.00
Unit price
/
Unavailable
Siemens' UL 1077 5SY4250-5 Supplementary Protectors are designed to provide additional protection along with a branch circuit protection device. Since these Supplementary protectors are made to trip faster than a standard UL 489 Circuit Breaker they are able to provide additional protection for more sensitive devices inside the panel. Supplementary protectors can be used in a number of industrial applications such as to provide selectivity for multiple motor control circuits on the secondary side of a control transformer or power supply by allowing the user to quickly find the problem circuit should a fault occur without having to shut down all of the other control circuits. Supplementary protectors may also be used as a local disconnecting means inside the panel when a branch circuit protection device is already present.
The trip curve A characteristic of the 5SY4250-5 is designed to protect extremely sensitive circuits, for example those involving semiconductors. The magnetic trip point of these breakers is 2 to 3 times the In rating. The thermal trip point is 1.13 to 1.45 that of the protector rating.
The trip curve A characteristic of the 5SY4250-5 is designed to protect extremely sensitive circuits, for example those involving semiconductors. The magnetic trip point of these breakers is 2 to 3 times the In rating. The thermal trip point is 1.13 to 1.45 that of the protector rating.
