Pocket Reference Cards
Credit-card-sized (85×54mm) reference cards with cable current ratings, derating factors, color codes, and conversions. Print on cardstock, laminate, and keep in your wallet or toolbox.
23 items available · All free to download
AS/NZS 3008 Card
Free printable pocket card with Cu/XLPE cable current ratings from AS/NZS 3008 Table 13/14 and derating factors from Table 22/25/27. Credit-card size, print and laminate.
BS 7671 Card
Free printable pocket reference card with cable current ratings from BS 7671 Table 4D2A and derating factors from Table 4B1/4C1. Print on cardstock for site use.
IEC 60364 Card
Free printable cable current rating reference card per IEC 60364 Table B.52.4/5 with derating factors from Table B.52.14/17. Pocket-sized for field use.
NEC 310.16 Card
Free printable NEC Table 310.16 ampacity reference card with 310.15(B)(1) correction factors. Credit-card size for wallet or toolbox.
Color Codes Card
Free printable cable color code reference card covering 10 countries including IEC, NEC, BS 7671, AS/NZS 3000. Identify phase colors instantly on any international project.
IP/IK Rating Card
Free printable IP and IK rating decoder card. Instantly look up ingress protection ratings from IP00 to IP69K plus impact ratings IK00-IK10.
mm²↔AWG Card
Free printable mm² to AWG/kcmil conversion chart. Cross-reference metric and imperial cable sizes instantly. Essential for international electrical projects.
Conduit Fill Card
Free printable NEC conduit fill chart. Maximum conductor counts for EMT, RMC, PVC conduits with THHN/THWN wire. Per NEC Chapter 9 Table 1.
First Aid Card
Free printable electrical emergency first aid card. Step-by-step response for electrical injuries. Laminate and post in every switchroom and workshop.
Cable Sizing Card
Free printable cable sizing quick reference card covering current-carrying capacity for common sizes (1.5–300 mm²) across AS/NZS 3008, BS 7671, IEC 60364, and NEC. Includes voltage drop formula and derating table.
VD Limits Cheatsheet
Free printable voltage drop limits cheatsheet comparing NEC (3%), IEC (4%), AS/NZS (5%), and BS 7671 (3%+5%) side by side. Includes measurement origin rules and voltage drop formula.
Motor Starting Card
Free printable motor starting method comparison card. DOL, Star-Delta, Soft-Starter, and VFD compared by starting current, torque, voltage dip, cost, and IEC 60034-12 applicability.
Standards Cross-Ref
Free printable cross-reference table mapping key clauses between AS/NZS 3000, BS 7671, and IEC 60364. Covers voltage drop, earth sizing, max demand, overcurrent, isolation, disconnection times, and testing.
IDMT Curves Card
Free printable IDMT curve reference card per IEC 60255-151. Standard Inverse, Very Inverse, and Extremely Inverse time-current curves overlaid with equations, CTI grading guidance, and TMS selection.
Units & Formulas
Free printable electrical engineering units and formulas reference sheet. Ohm's Law, power triangle, 3-phase power, impedance, voltage drop, fault current, transformer relations, SI prefixes, and unit conversions.
Relay Settings
Free printable protection relay settings reference card. IDMT formula, SI/VI/EI curve constants, pickup settings guide, CTI coordination rules. Credit-card size for site use.
Short Circuit
Free printable short-circuit calculation reference card. IEC 60909 formulas, voltage factor c table, impedance correction factors, peak current calculations. Credit-card size.
CB Selection
Free printable LV circuit breaker selection guide card. MCCB ratings explained (In, Ics, Icu, Icw), selectivity types, Type 1 vs Type 2 coordination, cascading rules.
Tray Fill
Free printable cable tray fill calculation reference card. NEC 392.22 fill rules, IEC 61537 ratios, common tray widths with area table, derating for tray installations.
PF Correction
Free printable power factor correction calculation reference card. Reactive power formula, capacitor sizing, kVAr/kW correction factors table, harmonic derating rules.
Haz Area Zones
Free printable hazardous area zone classification reference card. IEC 60079-10-1 Zone 0/1/2, NEC Division 1/2, gas groups, temperature classes, Ex protection types.
Transformer Sizing
Free printable transformer sizing and derating reference card. kVA sizing formula, demand factor application, temperature and altitude derating, K-factor for harmonics.
Battery/UPS Sizing
Free printable battery and UPS sizing reference card. Ah capacity formula, autonomy time calculation, temperature correction, DoD limits for VRLA and lithium-ion, charger sizing.
Other Categories
Wall Posters
A3 landscape posters comparing cable data across all four major standards. Print in color and pin in your design office, workshop, or training room.
Inspection & Commissioning Checklists
A4 single-page checklists for cable installation, switchboard commissioning, and earthing system testing. Photocopy and distribute to your site team.
Toolbox Talk Cards
A5 landscape safety briefing cards. 5-minute presentations with attendance records for compliance documentation. Cover arc flash and safe isolation procedures.
Calculation Templates
Excel spreadsheets and fillable PDF worksheets for cable schedules, motor load lists, relay settings records, arc flash worksheets, and earthing design records. Open in Excel, Google Sheets, or LibreOffice.
Standards Guides
2-page A4 summary guides for AS/NZS 3008, BS 7671, IEC 60364, NEC, and multi-standard comparison. Step-by-step cable sizing methodology with exact table and clause references. Print and keep at your desk.