250A-LITTELFUSE 3 Phase DPDT/Form C Dual Range Voltage Monitor (190-480V)

Name: 250A-LITTELFUSE 3 Phase DPDT/Form C Dual Range Voltage Monitor (190-480V)
Brand: RefCoSupply Inc.
SKU: 250A
Price: 220.0 USD
Availability: InStock

$220.00 USD

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The 250A is a 3-phase, auto-ranging, dual-range voltage monitor that protects 190-480VAC, 50*/60Hz motors regardless of size from low and high voltage, unbalance/single-phase, and reverse-phase. The product provides a user selectable nominal voltage setpoint and the voltage monitor automatically selects between the 200V and 400V range. The 250A also features adjustable or manual restart delay.
This unique microcontroller-based voltage and phase-sensing device constantly monitors the 3-phase voltages to detect harmful power line conditions. When a harmful condition is detected, the Littelfuse’s output relay is deactivated after a specified trip delay. The output relay reactivates after power line conditions return to acceptable levels. The Model 250A includes advanced single LED diagnostics. Five different light patterns distinguish between faults and normal conditions.

Specifications:

Input Voltage (V): 190 to 480VAC
Maximum Input Power: 5W
Input AC Line Frequency (Hz): 50/60Hz (50Hz will increase all delay timers by 20%.)
Output Form: DPDT - 2 Form C
Output Load Rating (VA); Pilot Duty: 480VA @ 240VAC B300; General Purpose: 10A @ 240VAC
Restart Delay Range: Manual 2 - 300s adjustable
Trip Delay Range: Under/Over Voltage: 4s; Unbalance Phasing Faults: 2s
Trip Point Accuracy (%): ±1%
Overvoltage Trip Voltage (%): 110%
Overvoltage Reset Voltage (%): 107%
Undervoltage Trip Voltage: 90%
Undervoltage Reset Voltage (%): 93%
Voltage Unbalance Trip Point (%): 6%
Voltage Unbalance Reset (%): 4.50%
Termination Type: Torque: 7in-lbs; Wire: 12-18AWG
Mounting Method: #8 screws
Operating Temperature: -40° to 70°C (-40° to 158°F)
Humidity: Up to 95% non-condensing per IEC 68-2-3
Dimensions: 2.93 in H x 5.27 in W x 2.95 in D (94.4 x 133.9 x 74.9 mm)

250A-LITTELFUSE 3 Phase DPDT/Form C Dual Range Voltage Monitor (190-480V)

$220.00 USD

Frequently Asked Questions.

Does it come with a warranty?

All of our products come with a manufacturer warranty. Most products, come with a one year warranty from date of purchase.

What happens if I need to return my order?

No problem, as long as the product you purchased has not been installed and is still in its original packaging we will take it back within 30 days.

How fast is shipping?

Same day shipping on orders made before 2 PM EST.

Next day shipping on orders made after 2 PM EST.

If you would like to expedite your order, please shoot us an email or give us a call so that we can set that up for you.

What's the returns policy?

30 days from the date of purchase on new/unused product.

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250A-LITTELFUSE 3 Phase DPDT/Form C Dual Range Voltage Monitor (190-480V)

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Frequently Asked Questions.

Does it come with a warranty?

What happens if I need to return my order?

How fast is shipping?

What's the returns policy?

Questions about this product?
Don't be a stranger.

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250A-LITTELFUSE 3 Phase DPDT/Form C Dual Range Voltage Monitor (190-480V)

Shop safely

Frequently Asked Questions.

Does it come with a warranty?

What happens if I need to return my order?

How fast is shipping?

What's the returns policy?

Questions about this product? Don't be a stranger.

Questions about this product?
Don't be a stranger.