Basler Electric BE1-79M - Manual (Page 12)

1-2 BE1-79M General Information 9170100990 Rev N
Model and Style Number
The electrical characteristics and operational features included in a specific relay are defined by a
combination of letters and numbers, which constitutes the device's style number. The style number
together with the model number describe the features and options in a particular device and appear on
the front panel, drawout cradle and inside the case assembly. The model number BE1-79M designates
the relay as a Basler Electric, Class 100, Multiple Shot Reclosing Relay. The BE1-79M style chart is
shown in Figure 1-1.
Style Number Example
The following style number identification chart illustrates the features and options for BE1-79M relays. For
example, if the style number were BE1-79M B6A A6J C0L0F, the device would have the following
features:
BE1-79M Model Number
B Multiple shot
6 Lockout and reset with reclose fail and maximum cycle
A Instantaneous trip enable
A6 Reclose time delay adjustable from 0.1 to 99.9 seconds
J Operating power derived from 125 Vdc or 120 Vac source
C Reset time delay adjustable from 10 to 1000 seconds
0 Standard contact assignment
L Non-isolated contact sensing
0 No option 3 available
F Semi-flush mounting
Style Number Change
Effective November 18, 1991 (serial number 2812 and subsequent), the BE1-79M Multiple Shot
Reclosing Relay, style number identification for multiple shot is changed from A to B. This style number
change was made to differentiate relays with sensing input power module on the outside of the case
(style number A) and relays with the sensing input power module inside the case (style number B).
Section 7 of this manual provides difference data for style number A relays.
Compatibility
Relays with style number B are backwards compatible. That is, they may be used in place of relays with
style number A. The only exception is for a relay with a type Z power supply (250 Vdc/230 Vac) and
isolated sensing. For details, see section 7 of this manual.
Relays with style number A are NOT forward compatible. They may NOT be used in place of relays with
style number B.