JBK3 Series Machine Tool Control Transformer 63VA-250VA

Name: JBK3 Series Machine Tool Control Transformer 63VA-250VA
Brand: Newtrend or OEM brand
SKU: 1770406735425576960

Description

JBK3 transformer JBK3-63 JBK3-63VA JBK3-100 JBK3-100VA JBK3-160 JBK3-160VA JBK3-250 JBK3-250VA Machine tool control transformer

1.Application
JBK3 series machine tool control transformer is a kind of new product by reference to sample of SIMENS Company, it accords with standards like VDE0550, IEC204-1, IEC439, GB5226, etc. It is suitable for AC circuit of 50~60Hz, output rated voltage less than 220V, input rated voltage less than 500V, worked as control power supply for mechanical equipment and general electrical appliance and as power supply for work lighting and signal lamp.

2. Model and its meaning

3. Installation size

Type	Overall size(mm)			Hole distance for installation (mm)		Installation hole K or K x J(mm)	Fmax (mm)
Type	Bmax	Dmax	Emax	A	C	Installation hole K or K x J(mm)	Fmax (mm)
JBK3-40,60	78	72	89	56±0.4	51±2	4.8 × 9	12
JBK3-100	85	85	94	64±0.4	66±2	4.8 × 9	12
JBK3-160	96	91	109	84±0.4	73±2	5.8 × 11	14
JBK3-250	96	105	109	84±0.4	87±2	5.8 × 11	14
JBK3-400	120	109	123	90±0.4	90±2	7 × 12	18
JBK3-630	150	112	150	122±0.5	90±2	7 × 12	22
JBK3-1000	160	195	151	126±2	152±2	7 × 12	18
JBK3-1600	184	220	163	140±2	176±2	7 × 12	18
JBK3-2500	200	250	171	172±2	200±2	7 × 12	18

4. Machine Tool Control Transformer

Type	Rated capacity (VA)	Uel rated input voltage (V)	Rated output voltage
Type	Rated capacity (VA)	Uel rated input voltage (V)	Control	Illumination	Indication
JBK3-40	40	220±5% 380±5%	110 (127)	24 (36)	6 (12)
JBK3-63	63
JBK3-100	100
JBK3-160	160
JBK3-250	250
JBK3-400	400
JBK3-630	630
JBK3-1000	1000		Distribution of capacity for different winding may be according to the uses' request.
JBK3-1600	1600
JBK3-2500	2500

Technical Datasheet & Downloads

📄 Technical Documentation & Product Specifications

Download official engineering datasheets, certified test standards (IEC / UL / CE), wiring diagrams, and dimensional drawings for JBK3 Series Machine Tool Control Transformer 63VA-250VA.

📥

Official Technical Datasheet (PDF) Complete electrical ratings, tripping characteristics, dimensions, and compliance specifications.

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2D/3D CAD & Dimensional Drawings STEP, DXF, and PDF CAD drawing files for panel builders and switchgear designers.

Technical FAQ & Selection Guide

💡 Frequently Asked Technical Questions & Selection Guide

Pure engineering specifications, tripping curve parameters, and electrical selection guidance for panel builders and system designers.

Voltage & Load Sizing

How to verify rated operational voltage, frequency, and load duty cycle?

Verify that the nominal line voltage (AC 230V single-phase or 400V/415V/690V three-phase at 50/60Hz, or DC voltage ratings) falls within the continuous maximum operating limits of the device. Check duty cycle ratings (continuous vs intermittent duty) to ensure thermal stability under full load.

Protection & Environment

What ingress protection (IP Rating) and environmental enclosures are recommended?

For clean indoor electrical rooms, standard IP20 modular DIN-rail housings are recommended. For outdoor, industrial washdown, or dusty environments, mount components inside weatherproof enclosures rated IP65/IP66 with UV-resistant polycarbonate or powder-coated steel enclosures equipped with compression cable glands.

Selectivity & Grading

How to ensure upstream and downstream coordination in power distribution boards?

Ensure proper discrimination by grading current thresholds and tripping time delays: upstream devices should have higher current ratings and intentional short-time delays (Class S), allowing downstream branch MCBs to clear localized faults without blacking out the entire facility.

Installation & Mounting

What mounting rails, busbars, and spatial clearances are required?

Components mount on standard symmetrical 35mm DIN rail (EN 60715 / TH35-7.5) or backplate screw fixings. Maintain recommended top/bottom ventilation gaps (typically 30–50mm) to ensure unrestricted air convection, and use standard pin/fork comb busbars to minimize contact resistance and wiring errors.

Conductor & Torque Sizing

What conductor sizes and terminal tightening torques should be applied?

Select copper or aluminum conductor cross-sections complying with IEC 60364-5-52 current-carrying capacity tables based on continuous load. Always use a calibrated torque screwdriver or torque wrench to tighten terminal screws to the manufacturer-specified torque to prevent hot-spot degradation and loose connections.