Murphy 518PH, 518E specifications Specifications, Dimensions and Installation, Resistance in Ohms

Installation and Operation of the 518PH, 518APH & 518E TATTLETALE®

00-02-0187 Revised 10-06 Section 25

Please read the following information before installing. A visual inspection of this product for damage during shipping is recommended before mounting. It is your responsibility to have a qualified person install this unit.

GENERAL INFORMATION

WARNING

BEFORE BEGINNING INSTALLATION OF THIS MURPHY PRODUCT

✔Disconnect all electrical power to the machine.

✔Make sure the machine cannot operate during installation.

✔Follow all safety warnings of the machine manufacturer.

✔Read and follow all installation instructions.

Specifications

Case: Polycarbonate

Contact Rating: 10 A

Coil Circuit Resistance: 339 ohms ± 10% 12 Volt 678 ohms ± 10% 24 Volt Minimum Latch Voltage: 12 Volt model: 10 VDC 24 Volt model: 20 VDC

Minimum Latch Current: 12 Volt model: 30 mA 24 Volt model: 30 mA

Operating Temperature Range: -40 to 176°F (-40 to 80°C)

Dimensions and Installation

2-5/8 in.	2-5/16 in.
(67 mm)	(59 mm)

2-15/32 in.

(63 mm)

	Applies to 518APH model.		Installation
Mounting Holes				Panel
25/64 in.		Instruction		TATTLETALE®
(10 mm) dia		Plate
	13/16 in.	Hex
	(21 mm)	Nut
9/16 in.	1/4 in.	Lockwasher
(14 mm)	(6 mm) dia

CAUTION: Certain dangers to human safety and to equipment may occur if some equipment is stopped without pre-warning. It is recommended that monitored functions be limited to alarm only or to alarm before shutdown.

“Loop Circuit” Wire Length in Miles @ 77°F (25°C)

Resistance in Ohms		Maximum recommended Loop Circuit resistance
		for proper operation of TATTLETALE®.
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