tekmar 540 Thermostat Installation - Manual (Page 27)

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Technical Data
tekmarNet ® 4 Thermostat 540; One Stage Heat, One Stage Cool, One Fan
Packaged weight 0.8 lb. (380 g)
Enclosure NEMA 1, white PVC plastic
Dimensions 2-7/8” H x 2-7/8” W x 13/16” D (73 x 73 x 21 mm)
Approvals CSA C US, meets Class B: ICES and FCC Part 15
Ambient conditions Indoor use only, 36 to 122°F (2 to 50°C).
RH max 92% to 104°F (40°C), and 50% above 104°F
(40°C)
Altitude <9840 feet (3000 m), Installation Category II,
Pollution Degree 2
Power supply
24 V (ac) ± 10% 50/60 Hz, 1.8 VA Standby, 56 VA fully
loaded, NEC / CEC Class 2
W, Y and G Relays 24 V (ac) 2 A