Basler Electric BE1-BPR - Manual (Page 141)

9272000990 Rev J BE1-BPR Installation 7-1
SECTION 7 • INSTALLATION
GENERAL
When not shipped as part of a control or switchgear panel, BE1-BPR Breaker Protection Relays are
shipped in sturdy cartons to prevent damage during transit. Upon receipt, check the part number against
the requisition and packing list to see that they agree. Visually inspect it for damage that may have
occurred during shipment. If there is evidence of damage, immediately file a claim with the carrier and
notify your Regional Sales Office, or contact Basler Electric Technical Support Department at +1 618-654-
2341.
If the unit will not be installed immediately, store it in its original shipping carton in a moisture- and dust-
free environment. It is strongly recommended that an operational test (described in Section 8) always be
performed prior to installation.
OPERATING PRECAUTIONS
Before installation or operation, note the following precautions:
1. Always be sure that external operating (monitored) conditions are stable before removing a BE1-BPR
unit for inspection, testing, or servicing.
2. BE1-BPR relays are solid-state devices and have been type tested in accordance with the
requirements defined below under Dielectric Test. If a wiring insulation test is required on the
switching or panel assembly of which this unit is a part, see Dielectric Test below.
3. Be sure that the BE1-BPR case is hard wired to earth ground using the ground terminal on the rear of
the unit.
4. When the unit is in service, the controls should be protected by the plastic cover supplied. This limits
access to the control settings.
Dielectric Test
All output and power supply terminals have MOV suppressors. Maximum applied voltage must be no
greater than 300 volts where MOV suppressors are used. Surge suppression capacitors are installed
between terminal pairs and between terminals and chassis ground. When testing with 1,500 Vac, leakage
current (approximately 8 mA per terminal) is expected. 1,500 Vac (rms) at 45 to 65 hertz or 2,121 Vdc for
one minute may be applied between circuit groups, and between circuit groups and chassis ground in
accordance with IEC 255-5 and ANSI/IEEE C37.90-1989 (Dielectric Tests).
MOUNTING
General
BE1-BPR relays are designed to be mounted in either 19-inch racks or conventional panels. Overall
dimensions for the rack unit are shown in Figure 7-1. The rack unit may be panel mounted at any
convenient angle, using the cutout dimensions of Figure 7-2 as a guide. Figures 7-3 and 7-4 show the
dimensions for the vertical panel mount. The cutout dimensions for the vertical panel mount are shown in
Figure 7-5. When panel mounting the rack unit, an optional escutcheon plate can be installed to cover
variations in panel cutouts.