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Time-Mark B257B400 3-phase monitor relay
A 3-phase monitor relay designed for reversal, loss, and voltage monitoring. It features a coil voltage of 110/120 VAC at 400 Hz, with a single-pole double-throw (SPDT) contact configuration (1 Form C). The relay is mounted via a plug-in 8-pin octal socket and can handle a contact current of up to 10 amps. It provides reliable detection of phase loss, low voltage, and phase reversal, suitable for motor control and system protection applications. The device includes indicators for normal and trip conditions, with manual or automatic reset options, ensuring flexible operation and troubleshooting ease.
Time-Mark B257B400 3-phase monitor relay Specifications:
- Coil Voltage: 110/120 VAC at 400 Hz
- Contact Configuration: Single-pole double-throw (SPDT, 1 Form C)
- Maximum Contact Current: 10 Amps
- Mounting: Plug-in 8-pin octal socket (sold separately)
- Frequency: 400 Hz, 50 Hz, 60 Hz models available
- Voltage Range Adjustment: 85-120 VAC, 160-240 VAC, 380-480 VAC, 300-400 VAC
- Isolation: Transient protection 2500 VAC for 10 ms
- Response Time: 50 msec
- Enclosure Material: ABS plastic dust cover
- Operation Cycles: Mechanical 10 million operations, electrical 100,000 operations at rated load
- Temperature Range: 40°F to 151°F
- Humidity Tolerance: 97% without condensation
- Dimensions: Length approximately 3.52 inches, width 2.88 inches, height 1.75 inches
Buy the Time Mark Series 3-Phase Monitor Relay: B257B400
Purchase your Time Mark Series 3-phase monitor relay B257B400 online today for dependable detection of phase loss, reversal, and voltage issues. Designed with a coil voltage of 110/120 VAC at 400 Hz and a robust SPDT contact, this relay ensures optimal protection for motors and electrical systems. Mounting via a simple plug-in 8-pin socket makes installation straightforward, while its adjustable settings allow precise calibration. Its durable construction supports millions of mechanical operations, making it an excellent choice for industrial motor control, system troubleshooting, and reliable power monitoring in demanding environments.
Order your Time Mark Series 3-phase monitor relay B257B400 today and ensure reliable motor protection and system stability with proven performance.
Frequently Asked Questions
Where can I buy Time-Mark B257B400?
You can click on the BUY or RFQ button to purchase B257B400 from an authorized Time-Mark distributor.
How do I troubleshoot issues or seek technical support for part B257B400?
You can download the B257B400 datasheet or visit the Time-Mark website for support.
Who is the manufacturer of B257B400?
Time-Mark