C.E. Niehoff & Co. C190 Installation

C190 Series Alternators

for Use in Hazardous Locations

Installation Instructions

Repair of this equipment shall only be carried out by C.E. Niehoff & Co.

This symbol is used to indicate presence

WARNING

of hazards that can cause severe personal
injury, death or substantial property damage.

Contact C.E. Niehoff & Co. for:

• Sira IECEx Certificate of Conformity IECEx SIR 09.0144X

• SIR A ATEX Cer tificate of Conformity Sira 09ATEX1345X

• Quality Assurance Cer tificate of Conformity Sira 0518

The alternator incorporates flameproof joints with dimensions that are
other than the relevant maximum or minimum, specified in Table 1 or
IEC 60079 -1. The user shall contact the original manufacturer for infor­mation on the dimensions of the f lameproof joints.

The user shall refer to the manufacturer’s instructions with respect to the
enclosure providing a degree of ingress protection IP66.

MODEL, VDC, ADC, ISOL GND

Figure 1 – Alternator Nameplate Data

The alternator contains no user serviceable

WARNING

parts. DO NOT DISMANTLE. Failure to observe
any instructions in the installation instruction may
invalidate any certificate or warranty agreement.

DO NOT DISASSEMBLE. The cover O-ring may

WARNING

dislodge and cause failure of the flameproof
protection features. Verify that there is NOT a
gap between the cover and the alternator hous­ ing. Torque the nine cover bolts (M6x1x25 6g
Class 12.9. DIN 912) to 13.5 Nm/120 lb.in., which
incorporate a steel zinc-plated washer (7.10x

12.00 -12.12x 1.0mm thick) complete with bonded
seal provided with each bolt.

1. Gland and cable and pulley/fan are specified and
ordered separately and are factory-installed. Cable
and gland have their own application requirements.

Cable entry temperature may be 40º C
above ambient—cable to be suitable.

WARNING

TABLE 1—Conductor Sizes

Provision Internal Earthing Bonding conductor size = CSAMIN

*CSAMAX≤16mm2 (5.5 Awg) CSAMIN≥ CSAMIN

1

16mm2<CSAMAX≤35mm

2

(2 Awg)

CSAMAX>35mm2 (2 Awg) CSAMIN≥0.5 x CSAMAX

3

* Cross Sectional Area (CSA) of largest cable conductor = (CSAMAX)

Provision

External Earthing Bonding conductor size = CSAMIN

CSAMIN≥4.0mm2(11.5 Awg) CSAMIN=[8 Awg (8.4mm2)

1

2

CSAMIN≥16mm2 (5.5 Awg)

INSTALLED]

Installation Instructions

Explosion hazard. Do not open when an explosive

WARNING

atmosphere is present. Improper installation of
alternator in an explosive environment can cause
severe personal injury, death, or substantial property
damage. Alternator must be installed by a qualified
person trained and familiar with requirements for
selection, installation, and maintenance of flame­ proof equ ipment to IEC 60079 -14 and IEC 60 079-17
respectively.

“Person In Authority” is def ined as the employee
of a company taking full responsibility for the safety,
welfare, and super vision of all other employees
under their control. (See Inspection and Mainte­ nance Section referenced above.)

Page 1 of 4

2 Mount alternator on a suitable bracket and secure

with hardware per alternator drawing on page 2 of
these instructions.

3. Ground bolt torque is 14.9 Nm/132 lb. in. Clean sur­faces of all corosion and apply a suitable corrosion
inhibitor over ground connction for protection.

4. Secure output and ground cables within 12 inches
(300mm) of gland or terminal to prevent rotation
and loosening of cable at terminal.

5. Connect output cable from alternator to connections
as shown in diagram on page 4.

6. Perform a final inspection on the installation.

7. Install suitable alternator drive belt.

8. Start engine. Confirm the operation of charging
system meets specification.

II154E

Page 2 of 4

Figure 2 – Alternator Outline Drawing

II154E