BRS-451LA
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Products
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Magnetic Contactor / Starter
Togami Electric Mfg. manufacturers standard electromagnetic contactor/starters, economical electromagnetic contactor/starters, DC-operated electromagnetic contactor/starters, and other types of electromagnetic contactor/starters.
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PCB Relay
Our extensive lineup includes PCB relays used for inrush current prevention circuits and pre-charge circuits.
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Motor Control Center
These are units for controlling the switching of equipment, including motors and pumps. They feature a compact design for cost-effectiveness and ease of use, allowing flexible custom designs combining the functions required to meet customer needs.
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Switchboard
We offer an extensive lineup of different distribution boards, including high-voltage distribution boards. Flexible custom designs are possible by combining those functions required to meet customer needs.
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Explosion-Proof and Corrosion-Resistant Control Equipment
We offer a lineup of explosion-proof control equipment for use in explosion-proof areas, corrosion-resistant control equipment ideal for use in environments where corrosive gases are present.
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Super Line Checker
This is ideal for checking lines following faults or during maintenance before electrical equipment expansion or modification work. It allows live power lines to be checked by a single operator.
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Recloser
Togami Electric Mfg. Co., Ltd. designs, manufactures, and supplies Automatic Circuit Reclosers (Fault Clear) for power distribution lines.
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Ring Main Unit (RMU)
We manufacture Ring Main Units (RMU) to connect, control, and protect different sections of a ring network.
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BRS Series
This relay is ideal for inrush current prevention in inverter power circuits. It is compact and has a high capacity. It increases the design flexibility of printed circuit boards, allowing for use in special atmospheres and is dustproof.
▼Contact rating for safety standardFeatures
Compact design, high capacity (up to 45 A)
- Plastic sealed type can be used in special atmospheres and as a dustproof.
Wide range of temperatures
Low temperature side up to -40 ℃
High temperature side up to ＋85 ℃
- BR series and BRS series are pin-compatible.
Specifications
Learn more
Model number BRS-451LA Contact configuration 1a(NO) Contact resistance(Initial) Max. 100 mΩ(6 VDC,1 A, Voltage drop method) Contact material Silver alloy Rated operating voltage 480 VAC Limiting continuous current 45 A Contact rating
(Resistive load)250 VAC 480 VAC 45 A Make/ 10 A break 25 A Make/ 5 A break Rated breaking capacity(50 operations) 45 A(250 VAC) Min. switching load 100 ｍA,5 VDC Electrical endurance 10×103operations(Resistive load) Mechanical endurance 3×106operations(No load) Frequency of opening and closure No load 1,800 operations/ hour Resistive load 120 operations/ hour Operate voltage※1 Max. 95% of the rated coil voltage Release voltage Min. 10% of the rated coil voltage Limiting voltage 110% of the rated coil voltage Operation time Max. 20 ms Release time Max. 10 ms Insulation resistance(Initial) Min. 1,000 MΩ Dielectric strength(Initial) Between open contacts：1,700 VAC for 1 minute Between coil and contact：4,500 VAC for 1 minute Rated impulse withstand voltage
(Initial)Between open contacts：2,500 V(1.2×50 μs) Between coil and contact：6,000 V(1.2×50 μs) Protection RT Ⅲ Wash tight relay(Plastic sealed) Insulation
characteristics
(IEC 61810-1)Insulation distance：Clearance/ Creepage distance 5.5 mm/ 8.0 mm
Type of disconnection：Micro disconnection
Over voltage category：Ⅲ
Materials group：Ⅲa
Rated insulation voltage：500 V Rated insulation voltage：250 V
Between coil and contact：Basic insulation Between coil and contact：Reinforced insulation
Pollution degree：2 Pollution degree：3Shock resistance Malfunction Peak acceleration: 100 m/s2 Duration time: 11 ms Destruction Peak acceleration: 1,000 m/s2 Duration time: 6 ms Vibration resistance Malfunction Frequency range: 10 to 50 to 10 Hz
Double amplitude: 1.5 mmDestruction Environmental conditions Avoid icing and condensation.
If left or used for a long period of time in a sulfur gas or organic gas atmosphere, the contact surface may corrode and contact resistance may increase.
Do not use products containing silicon near relays.
The permeability of the plastic allows silicone gas to penetrate inside the relay.
Silicon oxide may form on the contact surface and cause contact failure.Ambient temperature -40 ℃ to 85 ℃ Storage temperature Ambient temperature and
ambient humidity range
Storage temperature and
storage humidity range
Altitude Max. 2,000 m Solder heat resistance Flow soldering Solder temperature 260±3 ℃ Solder dipping 5±0.5 s Hand soldering Soldering iron temperature Max. 350 ℃ Solder dipping Max. 3 s Mounting direction No restriction Weight Approx. 35 g Packing Inner carton 100 pcs. Shipping unit 500 pcs.
※1 Thermal equilibrium: at 85 ℃, Contact carrying current 45 ACoil data
Rated voltage 6 VDC 12 VDC 24 VDC Rated current 150 mA 75 mA 46 mA Rated power consumption 0.9 W 0.9 W 1.1 W Coil resistance ※±10% 40 Ω 160 Ω 525 Ω
※ The rated current, the rated power consumption, and the coil resistance are measured at a coil temperature of 23 ℃.Dimensions
Contact rating for safety standard
Rating Electrical life Operating temperature UL 45 A Make/ 10 A Break, 277 VAC(Resistive load)
25 A Make/ 5 A Break, 480 VAC(Resistive load)
10 A 277 VAC(Resistive load)
5 A 480 VAC(Resistive load)10×103operations at 85 ℃ TUV 45 A Make/ 10 A Break, 250 VAC(Resistive load)
25 A Make/ 5 A Break, 480 VAC(Resistive load)CQC 45 A Make/ 10 A Break, 250 VAC(Resistive load)
25 A Make/ 5 A Break, 480 VAC(Resistive load)Product category
