Beckwith Electric M-2220 Adapter Panel

Adapts M‑2001 Series Digital Tapchanger Control to replace Reinhausen

MK20 Control

• Connects easily to the M‑2001 Series Digital Tapchanger Control, using

four mounting screws and a 24‑pin connector

• Provides direct mechanical and electrical replacement of the Reinhausen

MK20 Control

• Provides built‑in shorting protection when the M‑2001 Series Digital

Tapchanger Control is removed

The M‑2220 Adapter Panel combines with the M‑2001 Series Digital

Tapchanger Control to provide convenient, direct mechanical replacement

for Reinhausen MK20 control.

M‑2220 Differences Relative to the MK20: Revised connections will be

needed if paralleling transformers using the circulating current method with

the Reinhausen SKB5 or SKB20 Parallel Control Units (please contact

Beckwith Electric Company for further information).

The M‑2220 provides one normally open contact for the Raise and Lower

outputs. The MK20 normally closed contacts for Raise and Lower are not

provided on the M‑2220.

Interface

External connections are made to one terminal block, located within the

M‑2220 enclosure.

Features

Fuse for voltage sensing is located on the front panel. A spare fuse is

provided.

AUTO/OFF/MANUAL switch. Auto/Off/Manual switch status detection is

available.

Testing Specifications

High Voltage: All input and output terminals will withstand 1500 Vac RMS

to chassis or instrument ground for one minute with a leakage current not

to exceed 25 mA, for all terminals to ground. Input and output circuits are

electrically isolated from each other, from other circuits, and from ground.

Surge Withstand Capability: All input and output circuits are protected

against system transients. Units pass all requirements of ANSI/IEEE

C.37.90.1-1989 defining surge withstand capability.

Radiated Electromagnetic Withstand Capability: All units are protected

against electromagnetic radiated interference from portable communications

transceivers.

Environmental

Temperature Range: Functionality is maintained from ‑40° to +85° C.

Humidity: Functionality is maintained under 95% relative humidity (non‑condensing).

Fungus Resistance: A conformal printed circuit board coating inhibits fungal growth.

Physical

Size with M‑2001 Series Digital Tapchanger Control: 11.80" high x 7.87"

wide x 4.18" deep max depth (29.97 cm x 19.98 cm x 10.62 cm)

Approximate Weight: 4 lbs, 2 oz (1.9 kg)

Approximate Shipping Weight: 7 lbs, 6 oz (3.37 kg)

Approximate Weight with M‑2001 Series Digital Tapchanger Control: 8 lbs,

7 oz (3.85 kg)

Approximate Shipping Weight with M‑2001 Series Digital Tapchanger Control:

11 lbs, 11 oz (5.33 kg)

Patent & Warranty

The M-2220 adapter panel is covered by a five year warranty from date of

shipment.

Specification is subject to change without notice.