{"product_id":"littelfuse-plmu11","title":"Littelfuse PLMU11","description":"Operation Upon application of power, a 0.6s random start delay begins and the PLMU11 measures the voltage levels and line frequency and selects the voltage range. The output relay is energized and the LED glows green when all voltages are acceptable and the phase sequence is correct. LED flashes green during trip delay, glows red when output de-energizes. undervoltage, overvoltage, and voltage unbalance must be sensed for continuous trip delay before the relay de-energizes. Reenergization is automatic upon fault correction. The output relay will not energize if a fault condition is sensed as 3-phase input voltage is applied. The LED alternately flashes red\/green when phase reversal is sensed. Line voltage is selected with the knob, setting the over and under voltage trip points. Voltage range is automatically selected by the microcontroller.PLMU11 - PLMU Series\u003cp\u003e\u003cstrong\u003eLittelfuse PLMU11 is now available from Williams Automation.\u003c\/strong\u003e\u003c\/p\u003e\u003cp\u003eIf you need a specific firmware version or series for this item, please call or email us with your request. We can also provide specifications and\/or a data sheet for this item upon request. Please call or email us if you need one.\u003c\/p\u003e\u003cp\u003eWe offer Overnight shipping for most items listed on our website. Please get in touch with us to confirm whether the product can ship overnight on the day of your order. Cutoff times are typically 2-3 PM EST. Lead times can range from 1 to 4 business days.\u003c\/p\u003e\u003cp\u003e\u003cem\u003e\u003cstrong\u003eCall (803) 761-7027 if you have any questions about availability, or email us at \u003ca href=\"mailto:sales@williamsautomation.com\"\u003esales@williamsautomation.com\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/em\u003e\u003c\/p\u003e","brand":"Williams Automation","offers":[{"title":"Original Packaging","offer_id":40616414904422,"sku":"2609371","price":464.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1896\/7693\/files\/8ee6b6da59e31bdc43d58b7f5089c15b0bef8686-large.png?v=1725415387","url":"https:\/\/williamsautomation.com\/products\/littelfuse-plmu11","provider":"Williams Automation","version":"1.0","type":"link"}