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AR2027F | ST Relays

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Product Number	ST2-DC48V-F
Part Number	AR2027F
Product name	ST Relays
Features	1 Form A 1 Form B/2 Form A, 8 A, Polarized power relays

* “ Product Number ” is ordering part number for non Japanese market. “ Part Number ” is ordering part number for Japanese market.

*	“ Product Number ” is ordering part number for non Japanese market. “ Part Number ” is ordering part number for Japanese market.

As of April 17, 2024
Specifications and design of the products are subject to change without notice for the product improvement.

Spec Detail

Item	Specifications
Product Number	ST2-DC48V-F
Part Number	AR2027F
Protective construction	Sealed
Operating function	Single side stable
Terminal shape	PC board terminal
Accessories	Sockets are available.
Standard packing Carton (pieces)	50
Standard packing Case (pieces)	500

Coil data

Item	Specifications
Rated coil voltage	48 V DC
Operate voltage (at20°C)	Max. 80% V of rated coil voltage (Initial)
Release voltage (at20°C)	Min. 10% V of rated coil voltage (Initial)
Rated operating current [±10%] (at 20°C)	5.3 mA
Coil resistance [±10%] (at 20°C)	9,000 Ω
Rated operating power	Approx. 240 mW
Max. allowable voltage (at 20°C)	150% V of rated coil voltage

Specifications

Item	Specifications
Contact arrangement	2 Form A
Contact shape	Single
Contact resistance (initial)	Max. 30 mΩ (by voltage drop 6 V DC 1 A)
Contact material	Au-flashed AgSnO₂ type
Contact rating (resistive load)	8 A 250 V AC, 5 A 30 V DC
Max. switching power (resistive load)	2,000 VA, 150 W
Max. switching voltage	250 V AC, 30 V DC
Max. switching current	8 A (AC), 5 A (DC)
Min. switching load (reference value)	100 mA 5 V DC
Insulation resistance (initial)	Min. 1,000 MΩ (at 500 V DC, Measured portion is the same as the case of dielectric strength.)
Dielectric strength (initial) : Between open contacts	1,200 Vrms for 1 min (detection current: 10 mA)
Dielectric strength (Initial) : Between contact sets	2,000 Vrms for 1 min (detection current: 10 mA)
Dielectric strength (initial) : Between contact and coil	3,750 Vrms for 1 min (detection current: 10 mA)
Surge withstand voltage (initial) : Between contact and coil	6,000 V
Operate time (initial) (at 20°C)	Max. 15 ms at rated coil voltage (without bounce)
Release time (initial) (at 20°C)	Max. 10 ms at rated coil voltage (without bounce, without diode)
Shock resistance (Functional)	196 m/s² (half-sine shock pulse: 11 ms, detection time: 10 µs)
Shock resistance (Destructive)	980 m/s² (half-sine shock pulse: 6 ms)
Vibration resistance (Functional)	10 to 55 Hz (at double amplitude of 2 mm, detection time: 10 µs)
Vibration resistance (Destructive)	10 to 55 Hz (at double amplitude of 3 mm)
Mechanical life	Min. 10x10⁶ ope. (switching frequency: at 180 times/min)
Conditions	Ambient temperature: -40 to +60°C Humidity: 5 to 85% RH (Avoid icing and condensation)
Unit weight	Approx. 10 g

Expected electrical life

Item	Specifications
Resistive load	[switching frequency ON : OFF = 1 s : 5 s] Min. 100x10³ ope. 8 A 250 V AC

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Information on Compliance with Standards

Standard Name	Status	Information on Compliance
UL	Approval	File No.	E43028
		Rating	8A 125, 250V AC 1/4 HP 125, 250V AC 5A 30V DC
		Remarks	-
		Last update	July 11, 2021
CSA	Approval	File No.	2369519
		Rating	8A 125, 250V AC 1/4 HP 125, 250V AC 5A 30V DC
		Remarks	-
		Last update	August 19, 2021
VDE	Approval	File No.	40017740
		Rating	8A 250V AC(cosφ=1.0) 4A 250V AC(cosφ=0.4) 5A 30V DC(0ms)
		Remarks	-
		Last update	January 19, 2023
TV	Approval	File No.	E43028
		Rating	TV3,TV-2
		Remarks	CSA is also approved TV rating. Please check the CSA column for details.
		Last update	July 11, 2021

Mark on products*

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