Murphy by Enovation Controls 518APH-12 tattletale closeup for reliable safety monitoring
Murphy by Enovation Controls 518APH-12 tattletale wiring close-loop for precise fault detection
Murphy by Enovation Controls 518APH-12 tattletale latching mechanism ensures intentional reset
Murphy by Enovation Controls 518APH-12 tattletale contact rating handles 10 A at 24 V
Murphy by Enovation Controls 518APH-12 tattletale in use on diesel engine setup
Murphy by Enovation Controls 518APH-12 tattletale closeup for reliable safety monitoring
Murphy by Enovation Controls 518APH-12 tattletale wiring close-loop for precise fault detection
Murphy by Enovation Controls 518APH-12 tattletale latching mechanism ensures intentional reset
Murphy by Enovation Controls 518APH-12 tattletale contact rating handles 10 A at 24 V
Murphy by Enovation Controls 518APH-12 tattletale in use on diesel engine setup

Murphy by Enovation Controls 518APH-12 Tattletale (25700147) | Closed-Loop Signaling Relay

Overview The Murphy 518APH-12 Tattletale from Murphy by Enovation Controls delivers a compact, dependable way to manage...
Vendor: Murphy by Enovation Controls
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£91.07
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Murphy by Enovation Controls 518APH-12 tattletale closeup for reliable safety monitoring

Murphy by Enovation Controls 518APH-12 Tattletale (25700147) | Closed-Loop Signaling Relay

£91.07
Murphy by Enovation Controls 518APH-12 tattletale closeup for reliable safety monitoring
Murphy by Enovation Controls 518APH-12 tattletale wiring close-loop for precise fault detection
Murphy by Enovation Controls 518APH-12 tattletale latching mechanism ensures intentional reset
Murphy by Enovation Controls 518APH-12 tattletale contact rating handles 10 A at 24 V
Murphy by Enovation Controls 518APH-12 tattletale in use on diesel engine setup

Murphy by Enovation Controls 518APH-12 Tattletale (25700147) | Closed-Loop Signaling Relay

£91.07
Description
Description
x

Overview

The Murphy 518APH-12 Tattletale from Murphy by Enovation Controls delivers a compact, dependable way to manage safety signaling in diesel and ignition applications. This 12 volt model uses a manual reset and a closed loop wiring approach that connects Swichgage and NC contacts in series to monitor circuit status and trigger protective actions when a fault is detected. The unit provides clear control outputs through NCH and NOH contacts, with the latched state powered by a dedicated energize‑to‑latch mechanism to prevent unintended changes.

In practice, the device presents two hot outputs depending on state: a hot output on the NCH contact when latched, and a hot output on the NOH contact when tripped. The design emphasizes robust signaling in industrial environments while keeping wiring straightforward for installation alongside existing safety circuits.

Key benefits and capabilities

  • Wired closed loop with Swichgage or NC contacts for compact fault signaling
  • 12 V control with a manual reset and a clear latch indication
  • Durable contacts rated up to 10 A at 24 V, with a 14 A fuse included

Practical applications

  • Ideal for distributor ignition or diesel engine monitoring where a latch prevents inadvertent restarts
  • Useful for integrating with existing safety circuits to provide a fail safe output if a fault occurs

Installation tips and notes

  • Verify the closed loop wiring configuration and ensure the latch remains energized for reliable status indication
  • Use the included fuse to protect the control circuit against nuisance trips

While the tattletale is designed to support signaling in demanding environments, actual results depend on the specific wiring and operating context. Review system requirements and wiring diagrams when planning installation to align with your safety goals.

FAQ

Q: What is the Murphy 518APH-12 Tattletale and how does it work?

A: A compact unit that wires Swichgage or NC contacts in a closed loop with a manual reset, using NCH and NOH outputs to signal status.

Q: What are the key electrical specs and usage notes?

A: Contacts rated 10 A at 24 V, 14 A fuse included; latch energizes to hold state, suitable for diesel engine monitoring when wired per diagrams.

Shipping & Return
Shipping & Return
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Returns Policy

You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).

You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).

If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.

Shipping

We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.

When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.

Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.

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