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| Image | Part # | Manufacturer | Description | Availability | Pricing | Quantity | Mounting Type | Base Product Number | Brand | Factory Pack QuantityFactory Pack Quantity | Manufacturer | Mfr | Mounting Styles | Package | Product Status | Operating Temperature | Series | Type | Subcategory | Voltage - Supply | Output Type | Circuit | Contact Current Rating | Contact Termination | Product Type | Switching Voltage | Contact Rating @ Voltage | Delay Time | Trip Range | Product | Trip Status | Product Category | Coil Termination | Height | Length | Width |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
![]() | Mfr. Part #SLA-575-ALETwicea Part #531-457-SLA-575-ALE | Mueller Electric Co |
PHASE MONITOR/RELAY
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| Min.:1 Mult.:1 | Chassis Mount | - | - | - | - | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | SLA | Phase Loss, Phase Sequence, Voltage Sensing AC | - | 575VAC | Relay | DPDT (2 Form C) | - | - | - | - | 3A @ 600VAC | 1 Sec ~ 2 Sec | 525 ~ 625V AC | - | Energized High/Low | - | - | - | - | - | ||
| SLA-575-ALE | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #SLA-120-ASATwicea Part #531-457-SLA-120-ASA | Mueller Electric Co |
PHASE MONITOR/RELAY
Datasheet
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| Min.:1 Mult.:1 | Socketable | - | - | - | - | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | SLA | Phase Loss, Phase Sequence, Voltage Sensing AC | - | 120VAC | Relay | SPDT (1 Form C) | - | - | - | - | 10A @ 240VAC | 0.25 Sec ~ 0.5 Sec | 95 ~ 130V AC | - | Energized High/Low | - | - | - | - | - | ||
| SLA-120-ASA | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #SLM-440-ASETwicea Part #531-457-SLM-440-ASE | Mueller Electric Co |
PHASE MONITORS MICROPROCESSOR CO
Datasheet
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| Min.:1 Mult.:1 | Chassis Mount | - | - | - | - | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | SLM | Frequency, Phase Loss, Phase Sequence, Voltage Sensing AC | - | 440VAC | Relay | DPDT (2 Form C) | - | - | - | - | 3A @ 600VAC | 1.5 Sec ~ 5 Min | 440 ~ 490V AC | - | Energized High/Low | - | - | - | - | - | ||
| SLM-440-ASE | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #SLA-230-ALATwicea Part #531-457-SLA-230-ALA | Mueller Electric Co |
PHASE MONITOR/RELAY
Datasheet
Compare
| Min.:1 Mult.:1 | Socketable | - | - | - | - | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | SLA | Phase Loss, Phase Sequence, Voltage Sensing AC | - | 230VAC | Relay | SPDT (1 Form C) | - | - | - | - | 10A @ 240VAC | 0.25 Sec ~ 0.5 Sec | 190 ~ 270V AC | - | Energized High/Low | - | - | - | - | - | ||
| SLA-230-ALA | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #UOA-120-AKATwicea Part #531-457-UOA-120-AKA | Mueller Electric Co |
SINGLE PHASE UNDER VOLTAGE MONIT
Datasheet
Compare
| Min.:1 Mult.:1 | Socketable | - | - | - | - | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | UOA | Voltage Sensing AC | - | 120VAC | Relay | DPDT (2 Form C) | - | - | - | - | 5A @ 240VAC | 0.05 Sec ~ 0.5 Sec | 97 ~ 135V AC | - | Energized High/Low | - | - | - | - | - | ||
| UOA-120-AKA | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #SLA-480-AFETwicea Part #531-457-SLA-480-AFE | Mueller Electric Co |
PHASE MONITOR/RELAY
Datasheet
Compare
| Min.:1 Mult.:1 | Chassis Mount | - | - | - | - | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | SLA | Phase Loss, Phase Sequence, Voltage Sensing AC | - | 480VAC | Relay | DPDT (2 Form C) | - | - | - | - | - | 1 Sec ~ 2 Sec | - | - | Energized High/Low | - | - | - | - | - | ||
| SLA-480-AFE | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #SLU-100-ASDTwicea Part #531-457-SLU-100-ASD | Mueller Electric Co |
UNIVERSAL PHASE MONITOR/RELAY
Datasheet
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| Min.:1 Mult.:1 | DIN Rail | - | - | - | - | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | SLU-100 | Phase Sequence | - | 208 ~ 480VAC | Relay | SPDT (1 Form C) | - | - | - | - | 10A @ 240VAC | 0.5 Sec ~ 300 Sec | 200 ~ 500V AC | - | Energized High/Low | - | - | - | - | - | ||
| SLU-100-ASD | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #UOA-240-AKATwicea Part #531-457-UOA-240-AKA | Mueller Electric Co |
SINGLE PHASE UNDER VOLTAGE MONIT
Datasheet
Compare
| Min.:1 Mult.:1 | Socketable | - | - | - | - | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | UOA | Voltage Sensing AC | - | 240VAC | Relay | DPDT (2 Form C) | - | - | - | - | 5A @ 240VAC | 0.05 Sec ~ 0.5 Sec | 205 ~ 260V AC | - | Energized High/Low | - | - | - | - | - | ||
| UOA-240-AKA | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #SLU-600-ASTDSTwicea Part #531-457-SLU-600-ASTDS | Mueller Electric Co |
UNIVERSAL PHASE MONITOR/RELAY
Datasheet
Compare
| Min.:1 Mult.:1 | Chassis Mount | - | - | - | - | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | SLU-600 | Frequency, Phase Loss, Phase Sequence, Voltage Sensing AC | - | 208 ~ 600VAC | Relay | DPDT (2 Form C) | - | - | - | - | 10A @ 240VAC | 0.5 Sec ~ 300 Sec | 200 ~ 630V AC | - | Energized High/Low | - | - | - | - | - | ||
| SLU-600-ASTDS | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #UOA-24-ALATwicea Part #531-457-UOA-24-ALA | Mueller Electric Co |
SINGLE PHASE UNDER VOLTAGE MONIT
Datasheet
Compare
| Min.:1 Mult.:1 | Socketable | - | - | - | - | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | UOA | Voltage Sensing AC | - | 24VAC | Relay | DPDT (2 Form C) | - | - | - | - | 5A @ 240VAC | 0.05 Sec ~ 0.5 Sec | 19 ~ 29V AC | - | Energized High/Low | - | - | - | - | - | ||
| UOA-24-ALA | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #UOA-48-DLATwicea Part #531-457-UOA-48-DLA | Mueller Electric Co |
SINGLE PHASE UNDER VOLTAGE MONIT
Datasheet
Compare
| Min.:1 Mult.:1 | Socketable | - | - | - | - | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | UOA | Voltage Sensing AC | - | 48VDC | Relay | DPDT (2 Form C) | - | - | - | - | 5A @ 240VAC | 0.05 Sec ~ 0.5 Sec | 38 ~ 55V DC | - | Energized High/Low | - | - | - | - | - | ||
| UOA-48-DLA | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #SLU-100-ASATwicea Part #531-457-SLU-100-ASA | Mueller Electric Co |
UNIVERSAL PHASE MONITORING RELAY
Datasheet
Compare
| Min.:1 Mult.:1 | Socketable | SLU-100 | Mueller Electric | 1 | Mueller Electric | Mueller Electric Co | SMD/SMT | Box | Active | 0°C ~ 55°C | SLU-100 | Phase Sequence | Relays | 208 ~ 480VAC | Relay | SPDT (1 Form C) | 10:00 AM | Screw | Industrial Relays | 240 VAC | 10A @ 240VAC | 0.5 Sec ~ 300 Sec | 200 ~ 500V AC | Industrial Relays | - | Industrial Relays | Screw | 3.10 in | 2.38 in | 1.75 in | ||
| SLU-100-ASA | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #SLA-440-ASATwicea Part #531-457-SLA-440-ASA | Mueller Electric Co |
PHASE MONITORING RELAY
Datasheet
Compare
| 2228
In Stock
| Min.:1 Mult.:1 | Socketable | SLA-440 | Mueller Electric | 1 | Mueller Electric | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | SLA | Phase Loss, Phase Sequence, Voltage Sensing AC | Relays | 440VAC | Relay | SPDT (1 Form C) | - | - | Industrial Relays | - | 10A @ 240VAC | 1 Sec ~ 2 Sec | 430 ~ 480V AC | - | Energized High/Low | Industrial Relays | - | - | - | - | |
| SLA-440-ASA | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #MAR-120-ACA-CTwicea Part #531-457-MAR-120-ACA-C | Mueller Electric Co |
MOTOR AUTO-RESTART RELAY
Datasheet
Compare
| 922
In Stock
| Min.:1 Mult.:1 | Socketable | MAR-120 | Mueller Electric | 1 | Mueller Electric | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | MAR | Voltage Sensing AC | Sensors | 120VAC | Relay | SPDT (1 Form C) | - | - | Liquid Level Sensors | - | 10A @ 120VAC | 0.2 Sec ~ 60 Sec | 70 ~ 100V AC | - | Energized High/Low | Liquid Level Sensors | - | - | - | - | |
| MAR-120-ACA-C | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #CMG-0101Twicea Part #531-457-CMG-0101 | Mueller Electric Co |
CURRENT MONITOR
Datasheet
Compare
| Min.:1 Mult.:1 | Chassis Mount | - | Mueller Electric | 1 | Mueller Electric | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | CMG-0101 | Current Sensing AC | Relays | 24 ~ 480VAC | Solid State | SPST-NO (1 Form A) | - | - | Industrial Relays | - | 1A @ 280VAC | 0.02 Sec ~ 0.4 Sec | 0.5 ~ 2A AC | - | Energized High/Low | Industrial Relays | - | - | - | - | ||
| CMG-0101 | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #UOA-240-AFATwicea Part #531-457-UOA-240-AFA | Mueller Electric Co |
VOLTAGE MONITORING RELAY
Datasheet
Compare
| Min.:1 Mult.:1 | Socketable | UOA-240 | Mueller Electric | 1 | Mueller Electric | Mueller Electric Co | Socket | Box | Active | 0°C ~ 55°C | UOA | Voltage Sensing AC | Relays | 240VAC | Relay | DPDT (2 Form C) | 5:00 AM | Plug Pin | Industrial Relays | 240 VAC | 5A @ 240VAC | 0.05 Sec ~ 0.5 Sec | 205 ~ 260V AC | Industrial Relays | Energized High/Low | Industrial Relays | Plug Pin | - | - | - | ||
| UOA-240-AFA | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #CMB-120-AFA1Twicea Part #531-457-CMB-120-AFA1 | Mueller Electric Co |
CURRENT MONITOR RELAY
Datasheet
Compare
| Min.:1 Mult.:1 | Socketable | CMB-120 | Mueller Electric | 1 | Mueller Electric | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | CMB | Current Sensing AC | Relays | 120VAC | Relay | SPDT (1 Form C) | - | - | Industrial Relays | - | 10A @ 240VAC | 0.03 Sec ~ 0.5 Sec | 1 ~ 10A AC | - | Energized High/Low | Industrial Relays | - | - | - | - | ||
| CMB-120-AFA1 | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #SLA-230-ALETwicea Part #531-457-SLA-230-ALE | Mueller Electric Co |
PHASE MONITORING RELAY
Datasheet
Compare
| 2953
In Stock
| Min.:1 Mult.:1 | Chassis Mount | SLA-230 | Mueller Electric | 1 | Mueller Electric | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | SLA | Phase Loss, Phase Sequence, Voltage Sensing AC | Relays | 230VAC | Relay | DPDT (2 Form C) | - | - | Industrial Relays | - | 5A @ 240VAC | 0.25 Sec ~ 0.5 Sec | 190 ~ 270V AC | - | Energized High/Low | Industrial Relays | - | - | - | - | |
| SLA-230-ALE | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #UOA-120-ALATwicea Part #531-457-UOA-120-ALA | Mueller Electric Co |
VOLTAGE MONITORING RELAY
Datasheet
Compare
| Min.:1 Mult.:1 | Socketable | UOA-120 | Mueller Electric | 1 | Mueller Electric | Mueller Electric Co | - | Box | Active | 0°C ~ 55°C | UOA | Voltage Sensing AC | Relays | 120VAC | Relay | DPDT (2 Form C) | - | - | Industrial Relays | - | 5A @ 240VAC | 0.05 Sec ~ 0.5 Sec | 97 ~ 135V AC | - | Energized High/Low | Industrial Relays | - | - | - | - | ||
| UOA-120-ALA | ||||||||||||||||||||||||||||||||||||
![]() | Mfr. Part #SLB-120-ALEATwicea Part #531-457-SLB-120-ALEA | Mueller Electric |
PHASE UNBALANCE & LOSS & PHASE S
Datasheet
Compare
| Min.:1 Mult.:1 | Chassis Mount | - | - | - | - | Mueller Electric Co | - | Box | Obsolete | 0°C ~ 40°C | SLB | Phase Loss, Phase Sequence | - | 120VAC | Relay | SPDT (1 Form C) | - | - | - | - | 10A @ 120VAC | Fixed, 0.06 Sec; 0.1 Sec ~ 5 Sec | - | - | Energized High/Low | - | - | - | - | - | ||
| SLB-120-ALEA |
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