2-Stage Low Voltage Manual Switches

Operation Manual - Type C (Power Model)

NTC TECHNOLOGY CO., LTD. 3F., No.13, Sec. 1, Jhongsiao E. Rd. , Taipei City 100, Taiwan (R.O.C.) Tel: 886-2-2508-1183 Fax: 886-2-2508-1183

June 2008

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Type B Manual Switches Specifications

Model B-160A B-200A B-250A B-315A B-400A

Rating Current (A) 160 200 250 315 400

Rating Voltage (V) AC 380/400V 50/60HZ

Operating current (A) AC220V 16A

Type Dual (D)

Connection Surface (F)

Main AC 3000V / 1min (50/60HZ) Max. voltage

Operation AC 2500V / 1min (50/60HZ)

Class AC-33B Short circuit current rating/

peak (KA) 35/73.5

Mechanical life 8000

Electric lifec 3000

3P 16 17 18 18.5 19 Weight

4P 18 19 20 20.5 21

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1. Mounting Installation

A. The customer should make sure that the model received conforms to the one ordered, before installation.

g. g.

g.

a

cuitry.

B. Visually check the appearance of the product carefully. If signs of parts falling off or broken are found, send it back immediately for repair to avoid danger.

C. Insulation test: (1) Check the resistance between normal power input and conductive outer casin(2) Check the resistance between emergency power input and conductive outer casin(3) Check the resistance between the loading input terminal and conductive outer casin

If the resistance of the above checking is less than 500K, it is not normal. PS: The product contains a built-in electronic control circuit; therefore, using

high-resistance tester in insulation testing is strictly prohibited, as it may damage the electronic cir

D. Installation site

(1) Working temperature: -5~+55 (2) Relative humidity: 0~85 (3) Max. decline angle: 22.5 (4) Avoid working in environment with explosive or corrosive gas (5) Avoid working in site with high vibration levels (6) Avoid working in site with high dust density (7) The distance from the center of switch lever to the floor should be at least 130 140

cm.

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2. Wiring Diagram

Pow

Pow er supply I

er supply II

C1= I Power supply coil 27 & 84: Relays

C2= II Power supply coil 27a: Relay N.O. (a1,a2)(a3,a4)(b1,b2)(b3,b4): Aux. switches(2a2b)

AUX= Aux. switch 27b: Relay N.C.

Xa, Xb= Control switches 84a: Relay N.C.

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3. Internal Wiring Diagram

NoC1= I Power supply coil AUX= Aux. switch C2= II Power supply coil Xa, Xb= Control switches Contact Description

A1,A2 After being connected to 220VAC, BTS will switch to normal power supply (operating current 16A) a1,a2 BTS switches to normal power supply and connects a3,a4 BTS switches to normal power supply and connects

B1,B2 After being connected to 220VAC, BTS will switch to emergency power supply (operating current 16A) b1,b2 BTS switches to normal power supply and connects b3,b4 BTS switches to normal power supply and connects

te: (1) Make sure to remove the manual lever before switching on the power supply of the control

circuit to prevent accidents.(2) The circuit of A1, A2 and B1, B2 should be designed to be electrically and interchangeably

locked to avoid concurrent power supply, which would cause damage.(3) Under normal power supply: a1,a2/a3,a4 open b1,b2/b3,b4 close. (4) Under emergency power supply: a1,a2/a3,a4 close b1,b2/b3,b4 open.

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(5) Aux. contacts cannot be applied to ATS control circuit.

B. Manual operation (Do not operate while the switch is under load) (1) Remove the power supply of the control unit (2) Insert the manual handle on the switching lever (3) Switch manually:

Upward emergency power supply Downward normal power supply

Note: Before manual operation, remove the power supply first, and check for idle running, to avoid danger.

4. Dimension (m/m)

Model B-160A B-200A B-250A B-315A B-400A 3P 322 352 X 4P 372 412 3P 302 332 Y 4P 352 392

G 20 30 M 9 11

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Unit: mm

A

Rubber handle sleeve

rc distance

Space for manual operation

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