Basler Electric BE1-51 - Manual (Page 10)

4 9137200997 Rev G
Model and Style Number Description
Electrical characteristics and operational features included in a particular style of the BE1-51 Time
Overcurrent Relay are defined by a combination of letters and numbers that make up its style number.
The model number, together with the style number, describes the options included in a specific device,
and appears on the front panel, drawout cradle, and inside the case assembly. Upon receipt of a relay, be
sure to check the style number against the requisition and the packing list to ensure that they agree.
The Style Number Identification Chart (Figure 1) illustrates the manner in which the relay style number is
determined. For example, if the style number were H3E-Z1P-B2C1F, the device would have the following
characteristics:
H - Three-Phase-and-Neutral sensing
3 - Sensing input range of 1.5 to 12.0 amperes for phase and 0.5 to 4.0 amperes for neutral
E - Normally open outputs
Z1 - Switch selectable time curves
P - Operating power derived from 125 Vdc or 120 Vac
B - Current operated targets
2 - Two instantaneous elements
C - Push-to-energize outputs
1 - Normally open auxiliary timed output relay
F - Semi-flush mounting
Figure 1. Style Number Identification Chart
Introduction BE1-51