YASKAWA HERMETICALLY SEALED CONTACT

Maximum Contacting Reliability, Minimized Size and Get them from Bestact Bestact is a hermetically sealed power switching contact unit having an excellent reputation in great number of actual applications as an interface element for control systems. Customer-proven features of Bestact include maximum reliability as well as unsurpassed environmental immunity and durability under adverse conditions such as high temperature, high humidity, existance of gas or vapor, vibration and surge. Large- and medium-capacity types are available depending upon customer's applications. 5 series of modification...

MEDICAL EQUIPMENT -HARBOR FACILITIES ipANSIT VEHICLES (DOOR INTERLOCK SW, AUTOMATIC TRAIN STOP (ATS)) KHEWOOLS, GENERAL INDUSTRY AND FACILITIES mpplQTIES "(HYDRO, COAL-FIRED, NUCLEAR) .^^STEEL'APPLICATION (BLAST FURNACE, CASTING, ROLLING AND MATERIAL HANDLING OPERATIONS)

BESTACT PRODUCTS IMPROVES RELIABILITY O FEATURES OF THE BESTACT SERIES OF PRODUCTS Bestact = Conventional Reed Switches + Mechanical Power Relays Bestact can perform the jobs of both conventional reed switches and power relays. Because a single Bestact replaces both, circuitry is simplified and entire circuit reliability rises significantly. A substantial cost savings can be achieved in that no contact protection (snubbers/diodes) is needed, minimal connections and reduced wiring circuitry is realized in actual circuit design. Vibration and Impact (Shock) Resistance In its weakest axis (when...

O SIMPLIFICATION OF CONTROL SYSTEM WHEN UTILIZING BESTACT Note: * Normally, arc protective circuitry need not be applied. However, if applied, extremely long lite can be obtained.

Medium-Capacity (Element) Hermetically Sealed Contact Type R24U (For general purpose) 3 Type R25U (For heavy duty) KACTQ^T Type R14U (For general purpose) ■^wWM^Wfc Type R15U (For heavy duty) Highly Reliable Contact Employing New Materials and Innovative Designs such as Wiping and Hammering Action, Bifurcated Contact and Back-Stop Mechanism 1. Sealed with an inert gas, ensuring freedom from aging and influences exerted by external environment. 2 . The twin contact and wiping effect assures outstanding con- tact reliability, probability of failure is extremely low. 3 . Quick action permits a larger...

Note *ln circuit with optcouoler. maximum 5V 10mA can be used.

RELIABILITY AND TYPICAL APPLICATIONS (Field Failure Rate of Relays) GENERAL PURPOSE Problems on reliability which have not been solved even by semi-conductor or photo-electric switch can be solved with Bestact. Nole : * 1 Excerpt from "Reliability Data" issued Dy public agency. * 2 Actual results of field failure rate *3- When no of failures is zero apply following No of tested contacts x tested hour (H)x 1G-C Applying jiS (Japanese Industrial Standard] 60% reliability level. 0.91 7 for zero failure (Typical Applications) * Industrial automatic control systems • Computer and peripheral devices...

Breaking Waveform of Bestact Breaking Waveform of Conventional Relay Typical Waveforms at Breaking AC Inductive Loads

ELECTRICAL LIFE WHEN APPLYING DC CIRCUIT (Type R14U, R15U) 24VDC CIRCUIT 48VDC CIRCUIT 115VDC CIRCUIT LOAD CURRENT^) LOAD CURRENT(A) LOAD CURPF.NT(A) Note 1 For inductive load. L/R = 1 ms of the like is attained if equipped with surge suppressor 2 Electrical lite of medium capaciiy type R24U and R25U when they are applied to DC (I) Derate the load current by 50% [2] Type R24L) and R25U cannot be used in any 230VDC circuit and any 115VDC where LOAD CURRENT(A| RELIABILITY FOR APPLYING DRY CIRCUIT Note 1 Operating Conditions • 10Hz of make break frequency • Resistance between contacts (opening and...

Medium-Capacity Type RI-DHMU, -E25MU (Standard type) Large-Capacity Type RI-BLJMU, -CrjMU (Standard type) Type RI-BHMHU, -CUMHU (High insulation type) Highly Reliable Interface Relays for Programmable Controllers, Microcomputer Control Systems 1 Assures outstanding reliability m circuits of 10OVAC/DC or greater as well as m electronic component circuits. 2 Universal output relay capability. Enables direct control over a wide range from TTL electronic level to large magnetic con- tactors or DC solenoid valves. 3. Requires no output relay board 4 Quick action in 5ms or less 5 . Excellent insulation...

COIL SPECIFICATIONS (With polarity) Note 1 Values shown above udicate ooeration dt arntnent temperature Ot 20°C 2 Coil resistance values can vary by ± 10%. 3 Type Rl-C may erroneously operate it the continuous allowable voltage are exceeded tor a short period of time

Medium-Capacity Type • Coil energizing sources For proper coil excitation, use a genuine DC power supply such as battery or three-phase full-wave rectified source whose ripple factor is 5% or less. It single-phase full-wave rectified source is used, a smoothing capacitor is needed to control the ripple to 5% Emj, MAX VALUE Of- PULSATING COMPONENT Rrnin . WIN VALUf-" OF PULSATiNC COMPONENT Emea" . DC MEAN I'ALUE The standard mounting direction is shown in figure (a) below. Where placing the relay mounting board horizontally as shown in figure (b), the operational voltage and releasing voltage...

TWO POLE TYPE INPUT/OUTPUT RELAYS Type RIW-M Highly Reliable Relays Solving Contact Problems of Mercury Relays Two pole type I/O relays can supersede mercury relays that are widely used for vehicles and signals. In addition, these highly reliable relays have solved many contact problems that may occur using mercury relays. Note : i Values tabulated indicate operations at ambient temperature ot 20"C 2 Each of NO and NC contact is independent Therefore, trie operating time of NO contact and NC contact may overlap Symbols and terminal markings (bottom view) Note 1 For connec'ion to coil terminals,...

; RELAY UNIT RIU SERIES High Density Mounting Design Incorporating Ultra-High Reliability Relays Ideally Used as I/O Relay Units for Micromputer Boards, 1. 4. 8, 10 and 16 contacts per unit, high density mounting 2. Can be energized using TTL electronic level signals or open collector input 3- Also available in a photo-coupler isolation type. 4 . Minimum space needed due to compact size 5. Provided with operational display (LED) 6. Incorporated features of the relay units: * Hermetically sealed contacts assure high long-term reliability even m adverse environments. • Large-capacity switching...