BESTACT Heavy Duty Reed Contact Elements - Yaskawa Controls - (Version JPG) - PDF Catalogue | Technical Documentation

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Limit switch, Relay, Proximity switch, PCB relay, Magnetic sensor

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^YASKAWA

Bestact™ Heavy-duty Reed Switches

Highly Reliable Contact Employing New Materials and Innovative Designs such as wiping and Hammering Action, Bifurcated contact and Back-stop Mechanism_

■ FEATURES

1 Sealed with an inert gas, ensuring freedom from aging and influences exerted by external environment.

2 The bifurcated contact and "wiping action" assures outstanding contact reliability, probability offailure isextremely low. I₆₀=4.6x 10^-9(24V 1mA)

3 Quick action permits a larger make and break capacity and longer service life.

4 Can switch both AC and DC, permitting direct control over a wide range from low level load to electromagnetic power load.

5 Near surge-less switching of inductive load.

Medium-capacity type: 24V 1mA to 240VAC 0.5A

(5A making) Contact Ratings: C300 (AC) and Q150 (DC)

180VA & 69VA respectively Large-capacity type: 24V 1mA to 240VAC 1A

(10A making) 230VDC 40W (Solenoid valve) Contact Ratings: C600, B300 (AC), Q300 (DC), _360VA & 69VA respectively_

RELIABILITY AND TYPICAL APPLICATIONS

■ CONSTRUCTION AND OPERATING MECHANISM

Conventional reed switches are constructed simply. The contact for switching current also serves to switch the magnetic circuit. Bestact uses a separate magnetic member and contact unit (current carrying arcing section), each using different materials and design optimized for their functions.

(Field Failure Rate of" Relays)

■ Electric power equipment, nuclear power facilities ■ Elevators

■ Low-level command and control switches ■ Waterworks equipment

GENERAL PURPOSE RELAY 100TO150 /

SOLID STATE RELAY

80 TO 100 / I. /

MERCURY RELAY

■ Industrial automatic control systems ■ PLC interface devices

■ Transportation equipment and devices ■ Water treatment plants

■ Continuous casting machines ■ Non-contact safety switches

■ Marine development application ■ Various limit switches

■ Transit vehicle & railway ■ Cylinder position detection switches

<Bestac1 (Large^capacity lype) >

50 TO 60 /

■ Over-current detection switches ■ Motor vehicle electrical instrument "2 [ / BESTACT RELAY Note:*1. Excerpt from "Reliability Data" issued by government agency

*2. Actual results of field failure rate..

44.8 v *3. When no. of failures is zero apply following formula:

—

No. of failures x Constant**

Note: -Wvxng action when

orwralrng (Step!¹—$'1 * Hammer dtg adion when

Ä60 =

x-10--

No. of tested contacts x tested hour (H) ** Applying 60% reliability level, 0.917 for zero failure.

RATINGS AND SPECIFICATIONS


Application			Medium-Capacity Type	Large-Capacity Type	Remarks
Type			R25U	R15U
Contact Arrangement			1 NO	1 NO
	Rated Continuous Current		3A	5A
	Rated conditional short-circuit current		Ratings of short-circuit protection device; 5A250V, quick acting fuse type		In accordance with IEC 62246-2, 3.31
	Rated	AC-15	240V0.5A(180VA,1/4HP)	240V 1A(360VA, 1/2 HP)	NEMA pilot duty horsepower
	Operational Current*¹	DC-13	115V0.3A(69VA) L/R = 40ms	115V 0.5A, 230V 0.2A (69VA) L/R= 100ms	NEMA pilotduty
	Maximum Making Current		240VAC 15A	240VAC 30A	Min. 10 making cycles in accordance with IEC 62246-2, 3.34
Contact			240VAC 15A	240VAC 30A	Min. 10 breaking cycles in accordance with IEC 62246-2, 3.35
Performance	Maximum Breaking Current		115VDC 0.5A (L/R = 40ms)	115VDC 0.6A (L/R = 100ms) 230VDC 0.4A (L/R = 100ms)
	Minimum Operational Power Ratings		24V 1mA (5V 1mA digital load)	24V 1mA (5V 1mA digital load)	In accordance with IEC 62246-2, 3.32
	Withstand Voltage across Contacts		500VAC 1minute	800VAC 1minute
	Insulation Resistance		10⁹Q orgreater	10⁹Q orgreater	With 500VDC megger
	Initial Contact Resistance		500m Q orless	500m Q orless	6VDC1A
	Capacitance		0.5PF or less	0.45PF or less
	Pick-up Ampere Turn		100to 130AT	180to230AT	Standard coil is 3000turns, 33.5 mm long,
Operational Characteristics	Drop-out Ampere Turn		50AT or greater	60AT or greater	10.5mm I.D. with 0.2mm dia. wire.
	Operating Time		4ms or less (Bounce not included)	4ms or less (Bounce not included)	at 150% of pick-up ampere turn
	Releasing time*²		2ms or less	2ms or less	Using standard coil
	Maximum Bounce Time		2ms	2ms
	Mechanical life		Over100,000,000 operations	Over100,000,000 operations	In accordance with IEC 62246-2, 3.24
Mechanical Performance	Vibration Resistance		147.0m/s² (15G) or greater	196.0m/s² (20G) or greater	20 to 1 000Hz
Mechanical Performance	Impact Resistance		196.0m/s² (20G) orgreater (980.0m/s² (100G) orgreater)	392.0m/s² (40G) orgreater (980.0m/s² (100G) or greater)	Value in parenthesis indicates breakdown G.
	Robustness ofterminals		98.0N (10kgf)	98.0N (10kgf)
Ambient	Operational Temperature		-50to+150°C	-50to +150C
Temperature	Storage		-60to+180°C	-60to +180C

Note: *1. Where 240VAC, the rated operational current of 1A means 10A making and 1A breaking. Where 115VDC is indicated, the current is set at 1 times this value. *2. The releasing time indicates the value when the coil is equipped with a flywheel diode.

BESTACT Heavy Duty Reed Contact Elements - Yaskawa Controls - #1

Limit switch, Relay, Proximity switch, PCB relay, Magnetic sensor