The Broyce Control BPM is a ‑phase monitoring relay designed to safeguard three-phase systems by detecting under-voltage, phase-loss, and phase-sequence errors. DIN-rail mounted on a PF-S -pin base, it features an adjustable trip delay and a SPDT relay output. This unit is discontinued but remains a reliable choice for legacy systems.

Key Features:

Manufacturer: Broyce Control (UK)
Model / MPN: BPM (variants include BPM/, BPMU)
Functions: Monitors under-voltage, phase-loss, and phase-sequence on -phase, -wire systems
Mounting: DIN rail, PF-S -pin socket (supports up to  V)
Trip Voltage Ranges: User-configurable; e.g., – V, – V, – V, – V AC
Repeat Accuracy: ±.%
Time Delay: Adjustable .– s (±%), plus ~ ms response time
Output: SPDT relay, rated AC  V /  A, AC  V /  A, DC  V /  A
Electrical Life: ≥, operations at rated load
Dielectric Strength:  kV AC (RMS); impulse withstand  kV (./ µs)
Housing: Orange flame-retardant UL-V plastic; weight ~ g
Approvals: CE and UL compliant; designed for industrial control applications
Operating Environment: – °C to + °C; humidity up to %

Broyce Control – B8PM – 3-Phase Under-Voltage, Phase-Loss &amp; Sequence Relay

Broyce Control – B8PM – 3-Phase Under-Voltage, Phase-Loss & Sequence Relay