Time Mark Model B264 3-Phase Power Monitor 15A up to 150VAC

Time Mark Model B264 3-Phase Power Monitor 15A up to 150VAC

Condition: Used

The Time Mark B264 is a robust 3-phase power monitor designed to detect phase loss, phase reversal, low voltage, and high voltage in industrial or commercial 3-phase systems. Operating at up to 150 VAC, this unit supports current monitoring up to 15 Amps, making it ideal for protecting motors, compressors, pumps, and other 3-phase loads from costly electrical damage caused by supply anomalies.
It features built-in current transformers, adjustable voltage and current settings, and LED status indicators for easy diagnostics. Manufactured in the USA by Time Mark Corporation, a trusted name in industrial controls, the B264 delivers reliable performance for maintenance and automation professionals.

Specifications
Manufacturer: Time Mark Corporation
Model: B264
Type: 3-Phase Power Monitor
Operating Voltage: 150 VAC Max (Line-to-Line)
Current Rating: 15 Amps Max
Frequency: 50/60 Hz
Monitoring Features:
Phase loss detection
Phase reversal detection
Low voltage detection
High voltage detection
Current monitoring
Relay Output: SPDT (Form C)
Response Time: <200 milliseconds
Mounting Style: Surface mount or DIN-rail compatible (confirm on version)
Status Indicators: LED indicators for normal, fault, and relay state
Temperature Rating: -20°C to +65°C (operating)
Enclosure: Industrial-grade plastic housing
Country of Origin: USA

Features
Continuously monitors all three phases for voltage and phase correctness
Detects under-voltage, over-voltage, phase loss, and reversal conditions
Built-in current sensing up to 15A without the need for external CTs
Fast trip time for sensitive equipment protection
LED diagnostics provide real-time status feedback
Rugged design for harsh environments
Failsafe relay output for triggering alarms, shutdowns, or interlocks

Applications
Ideal for safeguarding electrical systems and equipment in:
Pumps and Motors – Phase loss protection for 3-phase motors
Compressors – HVAC/R systems
Control Panels – Automation and electrical cabinets
Industrial Machinery – Protect against utility voltage fluctuations
Elevators and Lifts – Prevents operation under unsafe electrical conditions
Wastewater and Booster Stations – Ensures consistent motor operation

Cross-Referenced Models
Comparable to other Time Mark monitors and industry alternatives:
Time Mark Model 263 – Similar 3-phase monitor, 480VAC versions
SymCom 201A – 3-phase monitor with programmable setpoints
Macromatic PC1 Series – Multi-fault 3-phase monitors
Carlo Gavazzi DPA Series – DIN rail phase loss/reversal units

Comparable Products
SymCom Model 201A – Programmable with voltage and current trip
ABB CM-PFS.21 – Phase monitoring relay
Schneider RM35TF30 – 3-phase monitor with adjustable settings
Macromatic PC1D450 – 3-phase voltage monitor with delay

Part of a Larger System
This monitor is often integrated in:
Motor control centers (MCCs)
PLC-based automation cabinets
VFD input protection circuits
Pump control panels
HVAC electrical panels

Related
Time Mark 3-phase monitor B264
Phase loss and reversal protection relay
150VAC 15A voltage monitoring relay
Motor protection relay 3-phase input
Industrial phase monitor for control panels

Common Requests:
“Can the B264 be used on 208V systems?” ✅ Yes, as long as voltage is within 150VAC L-L
“Does it detect phase reversal?” ✅ Yes
“Is this relay output dry contact?” ✅ Yes – SPDT (Form C)
“Do I need external CTs for 15A?” ❌ No – Built-in current monitoring up to 15A
“Where is this unit made?” 🇺🇸 Made in the USA by Time Mark Corporation

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